{"type": "FeatureCollection", "features": [{"id": "10.1016/j.ecoleng.2016.06.124", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:15Z", "type": "Journal Article", "created": "2016-07-26", "title": "Effects of grazing exclusion on carbon sequestration and plant diversity in grasslands of China A meta-analysis", "description": "Abstract   Widespread land degradation has strengthened the urgent need to restore overgrazing grasslands. China has implemented the program \u2018Returning Grazing Land to Grassland\u2019 (RGLG) through grazing exclusion by fence since 2003. Despite a lot of field experiments, there is still controversy on the effects of grazing exclusion on rangeland restoration, highlighting the need for synthetic analysis. We conducted a meta-analysis of 447 entries from 78 papers to analyze the spatiotemporal effects of grazing exclusion on plant diversity, productivity and soil carbon sequestration in the major RGLG-implemented provinces of China. Our results showed that, compared with the grazed sites, grazing exclusion significantly increased carbon stored in aboveground biomass, litter mass, belowground biomass and soils by 84.7%, 111.6%, 25.5% and 14.4%, respectively. Plant coverage, soil available nitrogen, soil available phosphorus and soil microbial biomass carbon increased by 52.0%, 21.7% 22.8% and 26.3%, respectively. However, grazing exclusion had little effects on recovering plant diversity in China\u2019s grasslands. Of the factors examined, climatic factors strongly modified the effects of grazing exclusion on ecosystem carbon stocks, for example, precipitation significantly amplified the positive effects. Grazing exclusion played a positive role in soil carbon sequestration in most grassland types except in temperate desert-steppe. But annual soil carbon sequestration rates decayed rapidly over time in both alpine meadow and temperate steppe. Short-term (\u22645\u00a0years) grazing exclusion remarkably increased species richness, but not significantly in the long run. The threshold from neutral to negative effects of grazing exclusion on species evenness occurs after approximately ten years. Our findings provide evidence that grazing exclusion is an effective way to restore vegetation and sequestrate carbon in degraded grasslands, but not beneficial to plant diversity maintenance. The benefits of grazing exclusion are more effective in humid area than arid area. We suggest that grazing exclusion should be ceased after about six to ten years. Additionally, grazing exclusion should integrate with other appropriate management practices instead of operating on a stand-alone basis.", "keywords": ["2. Zero hunger", "0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.ecoleng.2016.06.124"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ecoleng.2016.06.124", "name": "item", "description": "10.1016/j.ecoleng.2016.06.124", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ecoleng.2016.06.124"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-09-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2003.11.014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:32Z", "type": "Journal Article", "created": "2004-03-06", "title": "Wildfires In Nw Patagonia: Long-Term Effects On A Nothofagus Forest Soil", "description": "In NW Patagonia, Argentina, poor regeneration after fires of Nothofagus pumilio (Poepp. and Endl.) Krasser forests located in drier environments has been attributed to probable edaphic changes. We studied the long-term effects of wildfire on the mineralogical, physical, chemical and biological properties of a soil developed from volcanic-ashes under N. pumilio forests. Soils from six small patches burned in January 1996 and of undisturbed forest were sampled at a depth of 0-10 cm in March 1996,1997, 1998 and 2000. As biological soil indicators we assessed N in microbial biomass (N-MB) and potential N mineralization (pNmin). Chemical properties were analyzed for all 4 years in dry samples, N-BM and pNmin in rewetted samples in 1996 and 1997, and in field-moist samples in 1998 (pNmin) and 2000 (N-MB). Additionally, we measured soil moisture twice during the growing seasons of 1998 and 2000 at 0-16 cm, and mineralogical and physical properties once in 1998. The main effects of fire were: (i) a significant increase in pH, electrical conductivity, extractable P and cations (Ca, Mg, Na, K) and a significant decrease in organic C and total N; 4 years after the fire, C and N were still, respectively, 52 and 20% lower, pH was one unit higher, and electrical conductivity and extractable P were twice as high as in the unburned control; (ii) a considerable decrease in N-MB (>90%), without significant recovery in subsequent years; (iii) an increase of pNmin at the beginning of the incubation period, decreasing afterwards to only 4-44% the levels in the unburned soil; and (iv) a decrease of 31% in field capacity and 56% in soil moisture. No mineralogical changes in the amorphous soil components were observed. Although volcanic soils show a high capacity to stabilize organic matter, buffer pH, retain P and store water, the magnitude of the changes of all soil properties indicated that the intensity of the fire was very high, and might have a powerful effect on seedling emergence and survival. (C) 2003 Published by Elsevier B.V. (Less)", "keywords": ["0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Estela Raffaele, Mar\u00eda Julia Mazzarino, Luc\u00eda Roselli, Mar\u0131\u0301a Victoria Alauzis,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2003.11.014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2003.11.014", "name": "item", "description": "10.1016/j.foreco.2003.11.014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2003.11.014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-05-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2007.11.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:35Z", "type": "Journal Article", "created": "2008-01-07", "title": "Changes In Soil C And N Stocks And Nutrient Dynamics 13 Years After Recovery Of Degraded Land Using Leguminous Nitrogen-Fixing Trees", "description": "Abstract   In tropical forest areas with highly weathered soils, organic matter plays an important role in soil functioning and forest sustainability. When forests are clear-cut, the soil begins almost immediately to lose organic matter, triggering a series of soil degradation processes, the extent and intensity of which depends on soil management. Depending on the level of soil degradation, the rate at which the system can re-establish itself can be slow and may require the use of degraded land restoration techniques. This study aimed at evaluating the potential of pioneer leguminous nitrogen-fixing trees to recuperate degraded land. The area studied \u2013 located in the coastal town of Angra dos Reis in the State of Rio de Janeiro, Brazil \u2013 was planted with seven species of fast-growing leguminous nitrogen-fixing trees in 1991. The nutrient concentrations (Ca, Mg, P and K) and N and C stocks in the soil and litter were determined, in addition to the free- and occluded-light fractions of soil organic matter. Soil samples were also collected from two reference areas: (1) an area of undisturbed native forest; and (2) a deforested area spontaneously colonised by Guinea grass ( Panicum maximum ). The nutrient stocks in the litter of the restored area were similar to those found in native forest. The recuperation technique used was able to re-establish the soil C and N stocks after 13 years. C and N increased by 1.73 and 0.13\u00a0Mg\u00a0ha \u22121 \u00a0year \u22121 , respectively. The free-light fraction was highest in the recuperated area and lowest in the deforested area. The occluded-light fraction of the recuperated area was higher than that of the native forest only in the 0\u20135\u00a0cm layer. Both the free-light and occluded fractions were higher in the native forest and recuperated areas than in the deforested area. Since the free-light and the occluded-light fractions are the result of litterfall and decomposition, these results \u2013 combined with the data of litter stocks and soil C and N stocks \u2013 indicate that the use of legume trees was efficient in re-establishing the nutrient cycling processes of the systems. These results also show that recovering degraded land with this technique is effective in sequestering carbon dioxide from the atmosphere at high rates.", "keywords": ["0106 biological sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2007.11.007"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2007.11.007", "name": "item", "description": "10.1016/j.foreco.2007.11.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2007.11.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-04-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2010.07.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:37Z", "type": "Journal Article", "created": "2010-08-04", "title": "Thinning Method And Intensity Influence Long-Term Mortality Trends In A Red Pine Forest", "description": "Tree mortality shapes forest development, but rising mortality can represent lost production or an adverse response to changing environmental conditions. Thinning represents a strategy for reducing mortality rates, but different thinning techniques and intensities could have varying impacts depending on how they alter stand structure. We analyzed trends in stand structure, relative density, stand-scale mortality, climate, and correlations between mortality and climate over 46 years of thinning treatments in a red pine forest in Northern Minnesota, USA to examine how thinning techniques that remove trees of different crown classes interact with growing stock manipulation to impact patterns of tree mortality. Relative density in unharvested plots increased during the first 25 years of the study to around 80%, then began to plateau, but was lower (12-62%) in thinned stands. Mortality in unharvested plots claimed 2.5 times more stems yr\u22121 and 8.6 times as large a proportion of annual biomass increment during the last 21 years of the study compared to the first 25 years, but showed few temporal trends in thinned stands. Mortality in thinning treatments was generally lower than in controls, particularly during the last 21 years of the study when mortality averaged about 0.1% of stems yr \u22121 and 4% of biomass increment across thinning treatments, but 0.8% of stems yr \u22121 and 49% of biomass increment in unharvested plots. Treatments that combined thinning from above with low growing stock levels represented an exception, where mortality exceeded biomass production after initial thinning. Mortality averaged less than 0.1% of stems yr\u22121 and less than 1% of annual biomass production in stands thinned from below. These trends suggest thinning from below minimizes mortality across a wide range of growing stock levels while thinning from above to low growing stock levels can result in dramatic short-term increases in mortality. Moderate to high growing stock levels (21-34 m 2 ha \u22121 ) may offer greater flexibility for limiting mortality across a range of thinning methods. Mean and maximum annual and growing season temperatures rose by 0.6-1.8 \u25e6C during the study, and temperature variables were positively correlated with mortality in unharvested plots. Mortality increases in unharvested plots, however, were consistent with self-thinning principles and probably not driven by rising temperatures. These results suggest interactions between thinning method and intensity influence mortality reductions associated with thinning, and demonstrate the need for broader consideration of developmental processes as potential explanations for increased", "keywords": ["0106 biological sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2010.07.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2010.07.002", "name": "item", "description": "10.1016/j.foreco.2010.07.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2010.07.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-08-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2012.03.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:45Z", "type": "Journal Article", "created": "2012-05-08", "title": "Two Decades Of Low-Severity Prescribed Fire Increases Soil Nutrient Availability In A Midwestern, Usa Oak (Quercus) Forest", "description": "Abstract   For the last 23\u00a0years, low-severity prescribed fire has been used to decrease shade and fire tolerant tree species, increase oak ( Quercus  spp.), and increase herbaceous plant diversity in the East Woods of The Morton Arboretum, Lisle, Illinois, USA. The impacts of these fires on the belowground ecosystem have yet to be measured. Soil (0 to 10\u00a0cm) and litter samples were collected 12, 19, and 24\u00a0months following the most recent fire on 40 plots in burned and un-burned control areas. Soil physical, chemical, and biological properties were measured and compared with vegetation composition and structure from these same plots. Compared to un-burned controls, burn plots had greater canopy openness, greater herbaceous richness, and a lower spring/summer herbaceous ratio. Burned plots had higher soil moisture content, pH, electrical conductivity, Ca 2\u00a0+ , Mg 2\u00a0+ , K + , Na + , NO 3  \u2212 , total N, particulate organic matter (POM), total organic C, and potential N mineralization. Soil microbial biomass and respiration, texture, color, aggregate stability, and hydrophobicity were not different in burned compared to un-burned plots. Indices of litter and soil invertebrate diversity were also not affected by prescribed fire. Three stepwise least squares models predicted woody richness, herbaceous richness, and spring/summer herbs with aspect, litter invertebrate richness, and soil factors (pH, potential N mineralization, C/N ratio, Mg 2\u00a0+ , Bray P, and soil invertebrate Simpson index). These results confirm others showing prescribed fire to increase soil nutrient availability. Forest structural changes with fire appear correlated with soil nutrient availability. Decreased soil C, nutrient retention, invertebrate diversity, or increased hydrophobicity and the presence of exotic plants is often observed with high-severity fire; but, these negative impacts do not appear to be present with these long-term, low-severity fires.", "keywords": ["0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "K.A. Jacobs, Marlin L. Bowles, Bryant C. Scharenbroch, B. Nix,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2012.03.010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2012.03.010", "name": "item", "description": "10.1016/j.geoderma.2012.03.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2012.03.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-08-01T00:00:00Z"}}, {"id": "10.1023/a:1021366911279", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:18:07Z", "type": "Journal Article", "created": "2003-03-21", "description": "Short-term improved fallow technology, which is characterised by deliberate planting of fast growing N2 fixing legumes species in rotation with crops is currently being promoted for soil fertility replenishment in the small holder farms in the tropics. Recent research and extension efforts on this technology have mainly focused on a narrow range of species. There is a need to evaluate more alternative species in order to diversify the options available to farmers and hence reduce the risks of over dependence on fewer species. We evaluated twenty-two shrubby and herbaceous species for their site adaptability, biomass and nutrient accumulation, biomass quality and maize yield response to soil incorporated plant biomass after the fallow (six and twelve months) in three different field experiments on a Kandiudalfic Eutrudox in western Kenya. Species which yielded large amounts ofthe most biomass N adequate for two to three maize crops were Sesbania sesban, Tephrosia vogelii, Tephrosia candida, Crotalaria grahamiana, Dodonea viscosa, Colopogonium mucunoides, Desmondium uncinatum, Glycine wightii and Macroptilium atropurpureum. Most fallow species tested recycled  10%) and polyphenol (>2%) concentrations. were found only in the shrubby species, and the (Ppolyphenol + lignin ): N ratio varied widely (0.3\u20135) amongst the species. evaluated. Maize yield increased by two-fold in the first season following the fallow phase compared with continuous maize for most species. Results suggest that there are a wide variety of legumes that could be used for use in improved fallow technologies aimed at ameliorating nutrient degraded soils and subsequently enhancing crop yields.", "keywords": ["2. Zero hunger", "0106 biological sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "S. Gathumbi, A.I. Niang, J. de Wolf, B.A. Amadalo,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1023/a:1021366911279"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agroforestry%20Systems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1023/a:1021366911279", "name": "item", "description": "10.1023/a:1021366911279", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/a:1021366911279"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2002-11-01T00:00:00Z"}}, {"id": "10.1111/gcb.12819", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:25Z", "type": "Journal Article", "created": "2014-12-05", "title": "Soil Warming And Co2 Enrichment Induce Biomass Shifts In Alpine Tree Line Vegetation", "description": "Abstract<p>Responses of alpine tree line ecosystems to increasing atmospheric CO2 concentrations and global warming are poorly understood. We used an experiment at the Swiss tree line to investigate changes in vegetation biomass after 9\uffc2\uffa0years of free air CO2 enrichment (+200\uffc2\uffa0ppm; 2001\uffe2\uff80\uff932009) and 6\uffc2\uffa0years of soil warming (+4\uffc2\uffa0\uffc2\uffb0C; 2007\uffe2\uff80\uff932012). The study contained two key tree line species, Larix decidua and Pinus uncinata, both approximately 40\uffc2\uffa0years old, growing in heath vegetation dominated by dwarf shrubs. In 2012, we harvested and measured biomass of all trees (including root systems), above\uffe2\uff80\uff90ground understorey vegetation and fine roots. Overall, soil warming had clearer effects on plant biomass than CO2 enrichment, and there were no interactive effects between treatments. Total plant biomass increased in warmed plots containing Pinus but not in those with Larix. This response was driven by changes in tree mass (+50%), which contributed an average of 84% (5.7\uffc2\uffa0kg\uffc2\uffa0m\uffe2\uff88\uff922) of total plant mass. Pinus coarse root mass was especially enhanced by warming (+100%), yielding an increased root mass fraction. Elevated CO2 led to an increased relative growth rate of Larix stem basal area but no change in the final biomass of either tree species. Total understorey above\uffe2\uff80\uff90ground mass was not altered by soil warming or elevated CO2. However, Vaccinium myrtillus mass increased with both treatments, graminoid mass declined with warming, and forb and nonvascular plant (moss and lichen) mass decreased with both treatments. Fine roots showed a substantial reduction under soil warming (\uffe2\uff88\uff9240% for all roots &lt;2\uffc2\uffa0mm in diameter at 0\uffe2\uff80\uff9320\uffc2\uffa0cm soil depth) but no change with CO2 enrichment. Our findings suggest that enhanced overall productivity and shifts in biomass allocation will occur at the tree line, particularly with global warming. However, individual species and functional groups will respond differently to these environmental changes, with consequences for ecosystem structure and functioning.</p>", "keywords": ["0106 biological sciences", "2. Zero hunger", "Models", " Statistical", "Temperature", "Larix", "Carbon Dioxide", "15. Life on land", "Pinus", "Global Warming", "01 natural sciences", "Soil", "Species Specificity", "13. Climate action", "Biomass", "Tundra", "Switzerland"]}, "links": [{"href": "https://doi.org/10.1111/gcb.12819"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Global%20Change%20Biology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcb.12819", "name": "item", "description": "10.1111/gcb.12819", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12819"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-01-30T00:00:00Z"}}, {"id": "10.1111/gcbb.12255", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:29Z", "type": "Journal Article", "created": "2015-02-19", "title": "Bioenergy Harvest, Climate Change, And Forest Carbon In The Oregon Coast Range", "description": "Abstract<p>Forests provide important ecological, economic, and social services, and recent interest has emerged in the potential for using residue from timber harvest as a source of renewable woody bioenergy. The long\uffe2\uff80\uff90term consequences of such intensive harvest are unclear, particularly as forests face novel climatic conditions over the next century. We used a simulation model to project the long\uffe2\uff80\uff90term effects of management and climate change on above\uffe2\uff80\uff90 and belowground forest carbon storage in a watershed in northwestern Oregon. The multi\uffe2\uff80\uff90ownership watershed has a diverse range of current management practices, including little\uffe2\uff80\uff90to\uffe2\uff80\uff90no harvesting on federal lands, short\uffe2\uff80\uff90rotation clear\uffe2\uff80\uff90cutting on industrial land, and a mix of practices on private nonindustrial land. We simulated multiple management scenarios, varying the rate and intensity of harvest, combined with projections of climate change. Our simulations project a wide range of total ecosystem carbon storage with varying harvest rate, ranging from a 45% increase to a 16% decrease in carbon compared to current levels. Increasing the intensity of harvest for bioenergy caused a 2\uffe2\uff80\uff933% decrease in ecosystem carbon relative to conventional harvest practices. Soil carbon was relatively insensitive to harvest rotation and intensity, and accumulated slowly regardless of harvest regime. Climate change reduced carbon accumulation in soil and detrital pools due to increasing heterotrophic respiration, and had small but variable effects on aboveground live carbon and total ecosystem carbon. Overall, we conclude that current levels of ecosystem carbon storage are maintained in part due to substantial portions of the landscape (federal and some private lands) remaining unharvested or lightly managed.\uffc2\uffa0Increasing the intensity of harvest for bioenergy on currently harvested land, however,\uffc2\uffa0led to a relatively small reduction in the ability of forests to store carbon. Climate change is unlikely to substantially alter carbon storage in these forests, absent shifts in disturbance regimes.</p>", "keywords": ["0106 biological sciences", "Carbon dioxide mitigation", "Forest ecology -- Oregon -- Oregon Coast Range", "Forest biomass", "13. Climate action", "Carbon cycle (Biogeochemistry)", "Biomass energy", "Forest Biology", "15. Life on land", "01 natural sciences", "7. Clean energy", "Climatic change", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1111/gcbb.12255"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/GCB%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/gcbb.12255", "name": "item", "description": "10.1111/gcbb.12255", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcbb.12255"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-05-25T00:00:00Z"}}, {"id": "10.1111/njb.00936", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:48Z", "type": "Journal Article", "created": "2016-01-20", "title": "Environmental factors and ground disturbance affecting the composition of species and functional traits of ground layer lichens on grey dunes and dune heaths of Estonia", "description": "<p>                     A unique, species\uffe2\uff80\uff90rich and endangered lichen biota can be found on European coastal and inland sand dunes. However, it is increasingly affected by natural succession as well as by anthropogenic disturbances. We studied lichen diversity on the grey dunes and dune heaths of coastal and inland regions of Estonia. A total of 28 study plots were investigated; in each 0.1 ha study plot general environmental variables and anthropogenic disturbances were described and all epigeic lichen species were identified. We found 66 lichenized fungus (lichen) species, including several rare and ten red\uffe2\uff80\uff90listed lichens. Multivariate analysis (DCA, CCA) was performed to examine gradients in species composition and to relate variation in species data to environmental factors. In addition, we used redundancy analysis (RDA) to relate variation in species\uffe2\uff80\uff99 trait composition to environmental factors. Species composition on grey dunes differed significantly from that on dune heaths. The characteristic species for grey dunes are, besides several                     Cladonia                     species, foliose lichens, e.g.                     Hypogymnia physodes, Parmelia sulcata                     and                     Peltigera                     spp. Also species\uffe2\uff80\uff99 traits composition was different for either habitat, indicating that sorediate lichens, foliose lichens, lichens with cyanobacterium as the main photobiont, and sparsely branched                     Cladonia                     species dominate on grey dunes, while esorediate, green\uffe2\uff80\uff90algal, crustose and richly branched fruticose lichens are common on dune heaths. Soil pH was the most essential environmental variable for determining both species composition and species\uffe2\uff80\uff99 traits composition. The composition of lichen species was also significantly influenced by forest closeness, soil Mg content and cover of bare sand; the effect of ground disturbances was low compared to the effect of these environmental factors. To protect and conserve the species\uffe2\uff80\uff90rich lichen biota, it is necessary to protect the dune habitats from building activity, to avoid overtrampling in recreation areas and to regularly remove shrubs and trees.                   </p", "keywords": ["0106 biological sciences", "15. Life on land", "01 natural sciences", "3. Good health"]}, "links": [{"href": "http://onlinelibrary.wiley.com/wol1/doi/10.1111/njb.00936/fullpdf"}, {"href": "https://doi.org/10.1111/njb.00936"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nordic%20Journal%20of%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/njb.00936", "name": "item", "description": "10.1111/njb.00936", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/njb.00936"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-20T00:00:00Z"}}, {"id": "10.1139/x26-023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:58Z", "type": "Journal Article", "created": "2008-06-17", "title": "Ecosystem Nutrient Responses To Chronic Nitrogen Inputs At Fernow Experimental Forest, West Virginia", "description": "<p> Among the current environmental concerns for forests of the eastern United States is nitrogen (N) saturation, a result of excessive inputs of N associated with acidic deposition. We studied nutrient responses on N-treated and untreated watersheds of the Fernow Experimental Forest, West Virginia, to test for evidence of N saturation on the treated watershed. The watersheds were WS7 (23-year-old even-aged control), WS4 (mature mixed-aged control), and WS3 (23-year-old even-aged treatment). WS3 has received aerial applications of (NH4)2SO4 from 1989 to the present (a total of 4 years for the study period) at 3\uffe2\uff80\uff82\uffc3\uff97\uffe2\uff80\uff82ambient inputs of N and S (54 and 61\uffe2\uff80\uff82kg\uffe2\uff80\uffa2ha\uffe2\uff88\uff921\uffe2\uff80\uffa2year\uffe2\uff88\uff921, respectively). Base-flow stream samples were collected weekly from each watershed and analyzed for NO3\uffe2\uff88\uff92 and Ca2+. Mineral soil was incubated in situ, placed in bags, and buried about every 30 days during the growing season in each of seven sample plots within each watershed. Moist samples of soil from the bags were analyzed for extractable NH4+ and NO3\uffe2\uff88\uff92. In addition, forest floor material and leaves of an herbaceous species (Violarotundifolia Michx.) from each plot were analyzed for N and other nutrients. Violarotundifolia was present on all 21 plots and used as an additional indicator of N availability and soil fertility. Foliage tissue was sampled from overstory tree species (Liriodendrontulipifera L., Prunusserotina Ehrh., Betulalenta L., and Acerrubrum L.) from WS3 and WS7 and analyzed for nutrient content. Results from the 1993 growing season showed few, if any, differences among watersheds for (1) N content and C/N ratio of the mineral soil and forest floor and (2) relative proportion of NH4+ and NO3\uffe2\uff88\uff92 produced in the buried bags. Nitrification rates were equally high in soils of all watersheds; N concentrations were significantly higher in foliage tissue of overstory tree species and of V. rotundifolia in the treatment versus control watersheds; plant tissue Ca was significantly lower for the treatment watershed than for the control watersheds. Our results support the conclusions of earlier studies that high amounts of ambient N deposition have brought about N saturation on untreated watersheds at the Fernow Experimental Forest. This is suggested by minimal differences among watersheds in N mineralization and nitrification and soil and forest floor N. However, aggravated N saturation on our treated watershed can be seen in differences in plant tissue nutrients among watersheds and streamflow data, indicating increased losses of NO3\uffe2\uff88\uff92 with accompanying losses of Ca2+ in response to further N additions to a N-saturated system. </p>", "keywords": ["0106 biological sciences", "15. Life on land", "01 natural sciences", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1139/x26-023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Canadian%20Journal%20of%20Forest%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1139/x26-023", "name": "item", "description": "10.1139/x26-023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1139/x26-023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1996-02-01T00:00:00Z"}}, {"id": "10.1139/x08-045", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:58Z", "type": "Journal Article", "created": "2008-06-27", "title": "Impact Of A Pine Lappet (Dendrolimus Pini) Mass Outbreak On C And N Fluxes To The Forest Floor And Soil Microbial Properties In A Scots Pine Forest In Germany", "description": "<p>Herbivorous insect infestations significantly alter element and nutrient cycling in forests, thus directly and indirectly affecting ecosystem functioning. In this paper, we report on the herbivore-mediated transfer of carbon (C) and nitrogen (N) from the canopy to the forest floor and its influence on soil microbial activity during a pine lappet ( Dendrolimus pini L.) infestation. Over the course of 6\uffc2\uffa0months, we followed C and N fluxes in bulk deposition, throughfall, and green fall (green needle debris dropped during herbivory) together with solid frass (insect faeces) in an 80-year-old Scots pine ( Pinus silvestris L.) forest. Compared with the control, herbivore defoliation significantly doubled throughfall inputs of total and dissolved organic C and N over the study period. Frass plus green-fall C and N fluxes peaked in June\uffe2\uff80\uff93July at 110\uffc2\uffa0kg C\uffc2\uffb7ha\uffe2\uff80\uff931and 2.3\uffc2\uffa0kg N\uffc2\uffb7ha\uffe2\uff80\uff931, respectively. Randomized intervention analysis revealed no significant effects of herbivory on soil microbial properties, except for adenylate energy charge, which showed slightly higher values under herbivory. This study demonstrates the importance of canopy herbivory on overall C and N inputs to forest ecosystems, particularly in altering the timing and quality of the organic material reaching the forest floor and potentially affecting belowground processes.</p>", "keywords": ["0106 biological sciences", "2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "le Mellec, Anne, Michalzik, Beate,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1139/x08-045"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Canadian%20Journal%20of%20Forest%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1139/x08-045", "name": "item", "description": "10.1139/x08-045", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1139/x08-045"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-07-01T00:00:00Z"}}, {"id": "10.1139/x93-128", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:19:59Z", "type": "Journal Article", "created": "2007-07-20", "title": "Effects Of Selected Forest Management-Practices On Environmental Parameters Related To Successional Development On The Tanana River Floodplain, Interior Alaska", "description": "<p> Two mature floodplain white spruce (Piceaglauca (Moench) Voss) ecosystems (stage VIII) located on islands in the Tanana River, approximately 20\uffe2\uff80\uff82km southwest of Fairbanks, Alaska, were clear-cut during the winter of 1985\uffe2\uff80\uff931986 to quantify the effects of clear-cutting on selected environmental characteristics. Clearings in earlier successional stages (poplar\uffe2\uff80\uff93alder (Populus\uffe2\uff80\uff93Alnus), stage V; and open willow (Salix), stage III) were used to contrast the environmental parameters with the earlier stages found in the primary successional sequence. After clear-cutting, total radiation at the soil surface increased to early successional stage III levels. Potential evaporation from the soil surface increased 5-fold as a result of clearing in the stage VIII sites and was substantially greater than that found in the stage III sites by other researchers. Clearing had relatively little effect on air temperature. The concentration of P and K was significantly lower in the forest floor of both clearcuts, and the concentration of C was significantly higher at VIII-A-T (stage VIII\uffe2\uff80\uff93site A\uffe2\uff80\uff93treated (cleared) plot) when compared with the control stands. There was a decrease in total forest floor biomass at both clear-cut plots. Organic matter, total N, available NH4 and P, and extractable Mg and K all decreased after cutting, whereas pH increased. Decomposition of spruce foliage on the forest floor surface was slower in the clearcuts. Nitrogen immobilization occurred during the first 2 years of decomposition. During the third year it appeared that some mineralization was beginning to occur but the levels were very low, averaging only 3\uffe2\uff80\uff82mg N per bag in the clear-cut areas. Plant growth analysis indicated that growth was limited by high mineral soil salt content in the early successional stages (III) and that this limitation was species specific. Balsam poplar (Populusbalsamifera L.) appears to be more tolerant of the high cation content of the stage III sites compared with trembling aspen (Populustremuloides Michx.). By the time successional development has progressed to stage V, the soil has been sufficiently augmented by the inclusion of organic matter from the developing vegetation and the fixation of N by alder to result in higher seedling growth rates in the cleared areas. </p>", "keywords": ["0106 biological sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "John Yarie", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1139/x93-128"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Canadian%20Journal%20of%20Forest%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1139/x93-128", "name": "item", "description": "10.1139/x93-128", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1139/x93-128"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1993-05-01T00:00:00Z"}}, {"id": "10.1890/01-6015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:20:42Z", "type": "Journal Article", "created": "2007-06-06", "title": "Carbon And Nutrient Accumulation In Secondary Forests Regenerating On Pastures In Central Amazonia", "description": "<p>Over the past three decades, large expanses of forest in the Amazon Basin were converted to pasture, many of which later degraded to woody fallows and were abandoned. While the majority of tropical secondary forest (SF) studies have examined post\uffe2\uff80\uff90deforestation or post\uffe2\uff80\uff90agricultural succession, we examined post\uffe2\uff80\uff90pasture forest recovery in 10 forests ranging in age from 0 to 14 years since abandonment. We measured aboveground biomass and soil nutrients to 45 cm depth and computed total site carbon (C) and nutrient stocks to gain an understanding of the dynamics of nutrient and C buildup in regenerating SF in central Amazonia.</p><p>Aboveground biomass accrual was rapid, 11.0 Mg\uffc2\uffb7ha\uffe2\uff88\uff921\uffc2\uffb7yr\uffe2\uff88\uff921, in the young SFs. Within 12\uffe2\uff80\uff9314 yr, they accumulated up to 128.1 Mg/ha of dry aboveground biomass, equivalent to 25\uffe2\uff80\uff9350% of primary forest biomass in the region. Wood nitrogen (N) and phosphorus (P) concentrations decreased with forest age. Aboveground P and calcium (Ca) stocks accumulated at a rate of 1.2 and 29.4 kg\uffc2\uffb7ha\uffe2\uff88\uff921\uffc2\uffb7yr\uffe2\uff88\uff921; extractable soil P stocks declined as forest age increased. Although soil stocks of exchangeable Ca (207.0 \uffc2\uffb1 23.7 kg/ha) and extractable P (8.3 \uffc2\uffb1 1.5 kg/ha) were low in the first 45 cm, both were rapidly translocated from soil to plant pools. Soil N stocks increased with forest age, probably due to N fixation, atmospheric deposition, and/or subsoil mining.</p><p>Total soil C storage to 45 cm depth ranged between 42 and 84 Mg/ha, with the first 15 cm storing 40\uffe2\uff80\uff9345% of the total. Total C accrual (7.04 Mg C\uffc2\uffb7ha\uffe2\uff88\uff921\uffc2\uffb7yr\uffe2\uff88\uff921) in both aboveground and soil pools was similar or higher than values reported in other studies. Tropical SFs regrowing on lightly to moderately used pasture rapidly sequester C and rebuild total nutrient capital following pasture abandonment. Translocation of some nutrients from deep soil (&gt;45 cm depth) may be important to sustaining productivity and continuing biomass accumulation in these forests. The soil pool represents the greatest potential for long\uffe2\uff80\uff90term C gains; however, soil nutrient deficits may limit future productivity.</p>", "keywords": ["0106 biological sciences", "2. Zero hunger", "570", "550", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1890/01-6015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Applications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1890/01-6015", "name": "item", "description": "10.1890/01-6015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/01-6015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-08-01T00:00:00Z"}}, {"id": "10.1894/mh-34.1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:20:45Z", "type": "Journal Article", "created": "2009-03-03", "title": "Influence Of Rainfall, Type Of Range, And Brush Management On Abundance Of Northern Bobwhites (Colinus Virginianus) In Southern Texas", "description": "Assessing numerical response of northern bobwhites (Colinus virginianus) to habitat improvement in semi-arid rangeland often is confounded by responses of populations to highly variable patterns of rainfall. During 2 years of above-average rainfall, we investigated abundance of northern bobwhites relative to type of range and treatments to reduce brush on seven ranches in southern Texas. We expected response of populations to treatment of land to be more evident when northern bobwhites were released from constraints of low precipitation. However, main factors dominating abundance were rainfall during the previous growing season and type of range. Greatest numbers of calls were in mid- productivity rangeland (potential production of forage 2,000-3,900 kg/ha), especially sandy loam, clay loam, sandy, and gravelly ridge. Treatments to reduce brush increased abundance of northern bobwhites to a limited extent and were most effective when large blocks of land were treated. Techniques that kill brush (root-plowing) were more successful in increasing populations than top- removal methods (roller-chopping). Leaving strips or mottes (large clumps of living brush and trees) in cleared areas did not enhance populations, although we caution that retaining some brush cover may be important to survival of northern bobwhites in drier years and in situations where herbaceous cover is less abundant. RESUMEN\u2014Determinar la respuesta numerica de codornices nortenas (Colinus virginianus )at ecnicas para mejorar el habitat en pastizales semiaridos es confundido por las respuestas poblacionales a patrones altamente variables de precipitacion. Durante dos anos de precipitacion ma alta que la media, investigamos la abundancia de codornices con respecto al tipo de pastizal y tratamientos para reducir arbustos en siete ranchos en el sur de Texas. Esperamos la respuesta de la poblacion al tratamiento de la tierra ser mas evidente cuando las codornices fueron liberadas de los apremios de baja precipitacion. Sin embargo, los factores mas dominantes para determinar la abundancia fueron la precipitacion durante la estacion de crecimiento anterior y el tipo de pastizal. Mas silbidos fueron registrados en los pastizales de productividad mediana (produccion de forraje potencial de 2.000-3.900 kg/ha), especialmente en pastizales con suelos marga-arenosos, marga-arcillosos, arenosos, y pastizales en bordes pedregosos. Tratamientos para reducir arbustos aumentaron la abundancia de codornices a un grado limitado y fueron mas eficaces cuando terrenos grandes fueron tratados. Los tratamientos de remocion de arbustos (remocion de rao \u00b4ces) fueron mas exitosos para incrementar la poblacion que los metodos de remocion superior (la eliminacion de biomasa aerea). Dejando bandas o grandes grupos de arbustos y arboles en areas despejadas no mejorolas poblaciones, aunque consideramos importante indicar que retener alguna cobertura arbustiva podro \u00b4a ser importante para la supervivencia de codornices en anos mas secos y en situaciones donde la cobertura herbacea es menor.", "keywords": ["2. Zero hunger", "0106 biological sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Susan M. Cooper, James C. Cathey, D. Lang Alford, Shane S. Sieckenius,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1894/mh-34.1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/The%20Southwestern%20Naturalist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1894/mh-34.1", "name": "item", "description": "10.1894/mh-34.1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1894/mh-34.1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-03-01T00:00:00Z"}}, {"id": "10.2307/1351977", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:21:17Z", "type": "Journal Article", "created": "2006-04-13", "title": "Are Spartina Marshes A Replaceable Resource - A Functional-Approach To Evaluation Of Marsh Creation Efforts", "description": "Marsh creation has come into increasing use as a measure to mitigate loss of valuable wetlands. However, few programs have addressed the functional ecological equivalence of man-made marshes and their natural counterparts. This study addresses structural and functional interactions in a man-made and two natural marshes. This was done by integrating substrate characteristics and marsh utilization by organisms of two trophic levels. Sediment properties, infaunal community composition, andFundulus heteroclitus marsh utilization were compared for a man-madeSpartina salt marsh (between ages 1 to 3 yr) in Dills Creek, North Carolina, and adjacent natural marshes to the east and west. East natural marsh and planted marsh sediment grain-size distributions were more similar to each other than to the west natural marsh due to shared drainage systems, but sediment organic content of the planted marsh was much lower than in either natural marsh. This difference was reflected in macrofaunal composition. Natural marsh sediments were inhabited primarily by subsurface, deposit-feeding oligochaetes whereas planted marsh sediments were dominated by the tube-building, surface-deposit feeding polychaetesStreblospio benedicti andManayunkia aestuarina. Infaunal differences were mirrored inFundulus diets. Natural marsh diets contained more detritus and insects, because oligochaetes, though abundant, were relatively inaccessible. Polychaetes and algae were major constituents of the planted marshFundulus diet. Though naturalmarsh fish may acquire a potentially less nutritive, detritus-based diet relative to the higher animal protein diet of the planted marsh fish,Fundulus abundances were markedly lower in the planted marsh than in the natural marshes, indicating fewer fish were being supported. LowerSpartina stem densities in the planted marsh may have provided inadequate protection from predation or insufficient spawning sites for the fundulids. After three years, the planted marsh remained functionally distinct from the adjacent natural marshes. Mitigation success at Dills Creek could have been improved by increasing tidal flushing, thereby enhancing, access to marine organisms and by mulching withSpartina wrack to increase sediment organic-matter content and porosity. Results from this study indicate that salt marshes should not be treated as a replaceable resource in the short term. The extreme spatial and temporal variability inherent to salt marshes make it virtually impossible to exactly replace a marsh by planting one on another site.", "keywords": ["0106 biological sciences", "14. Life underwater", "15. Life on land", "01 natural sciences", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.2307/1351977"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Estuaries", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2307/1351977", "name": "item", "description": "10.2307/1351977", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2307/1351977"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1991-03-01T00:00:00Z"}}, {"id": "10.2307/2265779", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:21:19Z", "type": "Journal Article", "created": "2006-05-09", "title": "Responses Of A C-4 Grass And Three C-3 Forbs To Variation In Nitrogen And Light In Tallgrass Prairie", "description": "<p>In tallgrass prairie, high plant species diversity results not from a large number of grass species, but from a large number of forb (nongrass, herbaceous) species. Forbs exhibit morphological, life history, and ecophysiological characteristics that contrast sharply with those of the dominant C4 grasses. Success of the subdominant forbs varies strongly with topographic position and burning regime, and landscape scale patterns of abundance are well documented. But comparatively little is known about the mechanisms determining these patterns in persistent tallgrass prairie forbs. To elucidate these mechanisms, (1) leaf\uffe2\uff80\uff94level physiological characteristics of the dominant C4 grass, Andropogon gerardii, and four co\uffe2\uff80\uff94occurring C3 forbs were measured in response to natural and experimentally manipulated gradients of N availability, and (2) seasonal light environments of forbs in contrasting topographic positions and burning regimes and their morphological and physiological responses in these environments were compared to determine whether resource availability and utilization patterns contributed to patterns of forb distribution and abundance. The effects of burning regime and topographic position on maximum rate of photosynthesis (A) and stomatal conductance to water vapor (g) measured at the leaf level were not consistent with patterns of forb abundance. Nitrogen did not appear to limit forb physiological processes, even though increased N availability resulted in higher tissue N concentrations and greater biomass. There was no consistent increase in (A) or decrease in (g) in response to fertilization. However, (A) at low light levels was as much as 67% higher in fertilized Vernonia baldwinii and A. gerardii compared to unfertilized plants. Greater light availability to forbs in the canopy was associated with lower grass biomass production in uplands compared to lowlands and in unburned compared to burned sites. Forbs did not appear to adjust morphologically (leaf area and plant height) to different light environments at different sites. As a result, as much as 90% of forb leaf area in the burned lowland was displayed in low light, whereas as little as 30% of forb leaf area was in low light in the uplands at midseason. Estimates of potential whole\uffe2\uff80\uff94plant carbon uptake, based on leaf area distribution relative to available light and (A) as a function of light availability, agreed well with patterns of forb abundance and production. Differences in light availability may account for much of the variability in forb abundance related to burning regime and topographic position by limiting carbon gain in forbs more in burned lowlands than in other sites.</p>", "keywords": ["0106 biological sciences", "2. Zero hunger", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "C. L. Turner, Alan K. Knapp,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2307/2265779"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2307/2265779", "name": "item", "description": "10.2307/2265779", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2307/2265779"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1996-09-01T00:00:00Z"}}, {"id": "10.2307/2425415", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:21:20Z", "type": "Journal Article", "created": "2006-04-24", "title": "The Effect Of Nitrogen-Fertilization On The Production Of Halophytes In An Inland Salt-Marsh", "description": "The effect of nitrogen fertilization on plant production, soil and plant nitrogen content, and species distribution in an Ohio salt marsh was analyzed. Seasonal measurements indicate that the three dominant species attained maximal production at different times during the growing season. Production of Salicornia europaea increased with nitrogen fertilization and it appears that reduced soil nitrogen concentrations may be responsible for the different growth forms of S. europaea found in this marsh. Shoot nitrogen concentrations of S. europaea were inversely related to the growth response to fertilization. High tissue nitrogen concentrations in Hordeum jubatum and Atriplex triangularis suggest that some factor other than nitrogen is limiting to these species. INTRODUCTION A number of studies concerning production of plants in coastal salt marsh ecosystems suggest that productivity may be limited by availability of nitrogen (Tyler, 1967; Pigott, 1969; Stewart et al., 1972, 1973; Valiela and Teal, 1974; Gallagher, 1975; Patrick and Delaune, 1976; Mendelssohn, 1979b; Haines, 1979). Smart and Barko (1980) showed that although biomass was ultimately determined by the availability of nitrogen, growth rate was affected by the salinity of the sediments. Other effects of nitrogen fertilization on coastal salt marsh vegetation include: increased allocation of resources to sexual reproduction (Jefferies and Perkins, 1977), increased levels of nitrogen in the plant material (Buresh et al., 1980; Pigott, 1969) and a change in the distribution of plants in the salt marsh (Valiela et al., 1975). While these studies suggest that nitrogen may be an important limiting factor in the productivity of coastal marshes, no studies have been done to ascertain if this is true in inland salt marshes. Studies of plant production from inland saline areas (Hadley and Buccos, 1967, Hadley, 1970) have either not examined it in relation to nitrogen limitation, or else have concentrated on the response to nitrogen additions of a single species when grown under greenhouse conditions (Cords, 1960). Lack of tidal action and differences in species composition preclude the assumption that coastal and inland salt marshes respond similarly tonitrogen addition. The Atlantic coastal marshes of the United States are generally characterized by a bay-to-upland sequence of zones consisting of perennial grasses in the low marsh, giving way to annual succulents in the higher portions of the marsh (Niering and Warren, 1980). In an Ohio salt marsh this vegetational pattern was reversed. The annual species Salicornia europaea and Atriplex triangularis form two zones bordering the center of the saline pan with the perennial grass Hordeumjubatum occurring on the outer edge of the marsh, in the area of lower salinity (Ungar et al., 1979). The objectives of this study were to determine seasonal change in plant production, the effect of the nitrate and ammonium forms of nitrogen fertilization on plant production in an inland salt marsh and to determine if nitrogen deficiencies are responsible for the difference in the growth forms of Salicornia. MATERIALS AND METHODS The study area is a saline pan located at the site of the Morton Salt Company, in the city of Rittman, Wayne Co., Ohio (long. 810 47' 30', lat. 400 57' 30':SW?4 Sec 12, T 18N, R 13W). Three vegetation zones characterize the site: a Hordeum jubatum zone, an Atriplex triangularis zone and a zone of Salicornia europaea that was divided into", "keywords": ["0106 biological sciences", "2. Zero hunger", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Irwin A. Ungar, David G. Loveland,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2307/2425415"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/American%20Midland%20Naturalist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2307/2425415", "name": "item", "description": "10.2307/2425415", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2307/2425415"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1983-04-01T00:00:00Z"}}, {"id": "10.5061/dryad.wh70rxwww", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:22:34Z", "type": "Dataset", "created": "2024-06-19", "title": "Data from: Competition between mixo- and heterotrophic ciliates under dynamic resource supply", "description": "unspecifiedThe outcome of species competition strongly depends on the traits of the  competitors and associated trade-offs, as well as on environmental  variability. Here we investigate the relevance of consumer trait variation  for species coexistence in a ciliate consumer \u2013 microalgal prey system  under fluctuating regimes of resource supply. We focus on consumer  competition and feeding traits, and specifically on the consumer\u2019s ability  to overcome periods of resource limitation by mixotrophy, i. e. the  ability of photosynthetic carbon fixation via algal symbionts in addition  to phagotrophy. In a 48-day chemostat experiment, we investigated  competitive interactions of different heterotrophic and mixotrophic  ciliates of the genera Euplotes and Coleps under different resource  regimes, providing prey either continuously or in pulses under constant or  fluctuating light, entailing periods of resource depletion in fluctuating  environments, but overall providing the same amount of prey and light.  Although ultimate competition results remained unaffected, population  dynamics of mixotrophic and heterotrophic ciliates were significantly  altered by resource supply mode. However, the effects differed among  species combinations and changed over time. Whether mixotrophs or  heterotrophs dominated in competition strongly depended on the genera of  the competing species and thus species-specific differences in the minimum  resource requirements that are associated with feeding on shared prey,  nutrient uptake, light harvesting and access to additional resources such  as bacteria. Potential differences in the curvature of the species\u2019  resource-dependent growth functions may have further mediated the  species-specific responses to the different resource supply modes.  Overall, our study demonstrates that genus- or species-specific traits  other than related to nutritional mode may override the relevance of  acquired phototrophy by heterotrophs in competitive interactions, and that  the potential advantage of photosynthetic carbon fixation of  symbiont-bearing mixotrophs in competition with pure heterotrophs may  differ greatly among different mixotrophs, playing out under different  environmental conditions and depending on the specific requirements of the  species. Complex trophic interactions determine the outcome of  competition, which can only be understood by taking on a multidimensional  trait perspective.", "keywords": ["Ciliates", "mixotrophy", "FOS: Biological sciences", "coexistence", "resource fluctuations", "microalgae-ciliate symbiosis"], "contacts": [{"organization": "Fl\u00f6der, Sabine, Klauschies, Toni, Klaassen, Moritz, Stoffers, Tjardo, Lambrecht, Max, Moorthi, Stefanie,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.wh70rxwww"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.wh70rxwww", "name": "item", "description": "10.5061/dryad.wh70rxwww", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.wh70rxwww"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-23T00:00:00Z"}}, {"id": "10.5281/zenodo.16017208", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:24:08Z", "type": "Dataset", "title": "Cashew orchard soil properties, Dodamarg, Northern Western Ghats, India", "description": "Soil properties of cashew orchards of the Northern Western Ghats, India  This project contains chemical properties of soil collected from cashew orchards of Dodamarg, Northern Western Ghats, for a study investigating the factors influencing the effects of forest cover, flower abundance, temperature and (potentially) soil composition on cashew pollinators.  Taxonomic Coverage:\u00a0Not applicable  Geographic Coverage: Dodamarg, Sindhudurg District, Maharashtra, India  Temporal Coverage: March 2025  \u00a0  Description of field and lab methods  Soil collection: Soil samples were collected from 30 cashew orchards, using soil core sampler. The diameter of the core sampler was measured before soil collection. All soil samples were collected from 10 cm depth after removing all the leaf litter from the ground. From each orchard, 10 soil columns were collected for analysis of chemical properties.  Chemical Properties: We estimated thirteen soil chemical properties for all soil samples collected. The following parameters were analyzed by Zuari Farmhubs Laboratory: pH, electrical conductivity (E.C.) at 25\u00b0C, organic carbon (O.C.), available phosphorus (P\u2082O\u2085), available potassium (K\u2082O), available calcium (Ca), magnesium (Mg), sulfur (S), boron (B), zinc (Zn), iron (Fe), copper (Cu), and manganese (Mn).  More details about the data can be obtained from Aditya Satish (adityasatish@ncf-india.org) and Rohit Naniwadekar (rohit@ncf-india.org) from the Nature Conservation Foundation (www.ncf-india.org).  File Descriptions:  Data file: Dodamarg_2025_Cashew_Soil_Properties.csv  We have also included a ReadMe.txt file that explains the data file, akin to the description in the metadata.  Description of the columns of the data file:    Sl no: Serial number  Site: Site ID  Code: Site code (General location)  Latitude: latitude co-ordinate of the plot (in decimal degrees, \u00b0N)  Longitude: longitude co-ordinate of the plot (in decimal degrees, \u00b0E)  pH: pH of the soil  E.C.: Electrical Conductivity at 25\u00b0C (in dS/m)  O.C.: Organic Carbon (in %)  P\u2082O\u2085: Available P\u2082O\u2085 (in Kg /acre)  K\u2082O: Available Potassium (in Kg /acre)  Ca: Available Calcium (in mg/Kg)  Mg: Available Magnesium (in mg/Kg)  S: Available Sulphur (in mg/Kg)  B: Available Boron (in mg/Kg)  Zn: Available Zinc (in mg/Kg)  Fe: Available Iron (in mg/Kg)  Cu: Available Copper (in mg/Kg)  Mn: Available Manganese (in mg/Kg)   Funding:\u00a0  Godrej Consumer Products Limited  Arvind Datar  Rohini Nilekani Philanthropies", "keywords": ["Soil chemical properties", "Cashew orchards", "Ecology", "FOS: Biological sciences", "Northern Western Ghats"], "contacts": [{"organization": "Sadekar, Vishal, Satish, Aditya, Naniwadekar, Rohit,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.16017208"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.16017208", "name": "item", "description": "10.5281/zenodo.16017208", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.16017208"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-07-17T00:00:00Z"}}, {"id": "11586/391728", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:26:19Z", "type": "Journal Article", "created": "2020-06-22", "title": "Opportunities for expanding the use of wastewaters for irrigation of olives", "description": "Abstract   Olive trees are iconic to the Mediterranean landscape and in recent times, have expanded to other regions across the globe that share similar climatic conditions. Olive oil production benefits from irrigation, but with a changing climate and uncertainty in precipitation patterns, wastewaters will likely play a larger role supplementing irrigation water requirements. However, due to their relatively poor quality, wastewaters present challenges for sustained long-term use in olive production. Wastewaters include all effluents from municipalities, agricultural drainage, animal production facilities, agricultural processing and industrial processes. This review focuses on potential opportunities and limitations of sustaining olive oil production in the Mediterranean region using wastewater of various sources. The primary challenges for using such wastewaters include concerns related to salinity, sodicity, metals and trace elements, nutrients, organics, and pathogens. Organics and plant nutrients in the effluents are typically beneficial but depend on dosages.  Many studies have shown that saline wastewaters have been successfully used to irrigate olives in Greece, Israel, Italy, Jordan and Tunisia. Still, olive varieties and rootstocks have different tolerances to salinity and could respond differently and oil quality may improve or be compromised. Salts and trace elements need to be monitored in plants and soil to make sure accumulation does not continue from year to year and that soil physical conditions are not affected. Some food industries generate effluents with suitable characteristics for irrigation but one must balance the benefits (e.g. addition of nutrients), detriments (e.g. addition of salts or other limiting chemicals) and costs when determining the feasibility and practicality of reuse. Long-term accumulation of trace elements and metals will likely limit the feasibility of using industrial-originating effluents without treatment processes that would remove the toxic constituents prior to reuse. Therefore, untreated wastewaters from the many industries have limited long-term potential for reuse at this time. Application of olive mill wastewater may be agronomically and economically beneficial, particularly as a local disposal solution, but there are concerns associated with high-concentrations of polyphenols that may be phytotoxic and toxic to soil microbial populations.  With regards to human safety, risk of contamination of table olives and olive oil is very low because irrigation methods deliver water below the canopy, fruits are not picked from the ground, processing itself eliminates pathogens and the irrigation season typically ends days or weeks before the harvest (depending on the climate condition). Finally, considering physiological, nutritional and intrinsic characteristics of this species, it is clear that olive trees are appropriate candidates for the reuse of recycled water as an irrigation source.", "keywords": ["0106 biological sciences", "2. Zero hunger", "550", "Production", "15. Life on land", "01 natural sciences", "Fruit Quality", "630", "6. Clean water", "12. Responsible consumption", "Treated wastewater", "13. Climate action", "Health risk", "Olive tree"]}, "links": [{"href": "https://doi.org/11586/391728"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20Water%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "11586/391728", "name": "item", "description": "11586/391728", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/11586/391728"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-01T00:00:00Z"}}, {"id": "1805/19605", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:26:26Z", "type": "Journal Article", "created": "2018-10-19", "title": "Isotopic evidence for oligotrophication of terrestrial ecosystems", "description": "Human societies depend on an Earth system that operates within a constrained range of nutrient availability, yet the recent trajectory of terrestrial nitrogen (N) availability is uncertain. Examining patterns of foliar N concentrations and isotope ratios (\u03b415N) from more than 43,000 samples acquired over 37\u2009years, here we show that foliar N concentration declined by 9% and foliar \u03b415N declined by 0.6-1.6\u2030. Examining patterns across different climate spaces, foliar \u03b415N declined across the entire range of mean annual temperature and mean annual precipitation tested. These results suggest declines in N supply relative to plant demand at the global scale. In all, there are now multiple lines of evidence of declining N availability in many unfertilized terrestrial ecosystems, including declines in \u03b415N of tree rings and leaves from herbarium samples over the past 75-150\u2009years. These patterns are consistent with the proposed consequences of elevated atmospheric carbon dioxide and longer growing seasons. These declines will limit future terrestrial carbon uptake and increase nutritional stress for herbivores.", "keywords": ["0106 biological sciences", "570", "Nitrogen", "[SDV]Life Sciences [q-bio]", "577", "terrestrial nitrogen", "Nutritional stress", "551", "01 natural sciences", "oligotrophication", "Isotopes", "https://purl.org/becyt/ford/1.6", "Terrestrial carbon uptake", "https://purl.org/becyt/ford/1", "Ecosystem", "580", "2. Zero hunger", "Nitrogen Isotopes", "terrestrial ecosystems", "isotopic", "Eutrophication", "Plants", "15. Life on land", "sylviculture", "Nitrogen; Nitrogen Isotopes; Plants; Ecosystem; Eutrophication", "[SDV] Life Sciences [q-bio]", "element cycles", "foliar", "13. Climate action", "nutrient availability"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/704621/3/Craine_2018_isotopic.pdf"}, {"href": "https://www.nature.com/articles/s41559-018-0694-0.pdf"}, {"href": "https://doi.org/1805/19605"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature%20Ecology%20%26amp%3B%20Evolution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "1805/19605", "name": "item", "description": "1805/19605", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/1805/19605"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-10-22T00:00:00Z"}}, {"id": "10.1016/j.foreco.2012.11.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:38Z", "type": "Journal Article", "created": "2013-01-08", "title": "Impacts Of Post-Harvest Slash And Live-Tree Retention On Biomass And Nutrient Stocks In Populus Tremuloides Michx.-Dominated Forests, Northern Minnesota, Usa", "description": "Abstract   Globally, there is widespread interest in using forest-derived biomass as a source of bioenergy. While conventional timber harvesting generally removes only merchantable tree boles, harvesting biomass feedstock can remove all forms of woody biomass (i.e., live and dead standing woody vegetation, downed woody debris, and stumps) resulting in a greater loss of biomass and nutrients as well as more severe habitat alteration. To investigate the potential impacts of this practice, this study examined the initial impacts (pre- and post-harvest) of various levels of slash and live-tree retention on biomass and nutrient stocks, including carbon (C), nitrogen (N), calcium (Ca), potassium (K), and phosphorus (P), in Populus tremuloides Michx.-dominated forests of northern Minnesota, USA. Treatments examined included three levels of slash retention, whole-tree harvest (WTH), 20% slash retention (20SR), and stem-only harvest (SOH), factored with three levels of green-tree retention, no trees retained (NONE), dispersed retention (DISP), and aggregate retention (AGR).  Slash retention was the primary factor affecting post-harvest biomass and nutrient stocks, including woody debris pools. Compared to the unharvested control, stocks of biomass, carbon, and nutrients, including N, Ca, K, and P, in woody debris were higher in all treatments. Stem-only harvests typically contained greater biomass and nutrient stocks than WTH, although biomass and nutrients within 20SR, a level recommended by biomass harvesting guidelines in the US and worldwide, generally did not differ from WTH or SOH. Biomass in smaller-diameter slash material (typically 2.5\u201322.5\u00a0cm in diameter) dominated the woody debris pool following harvest regardless of slash retention level. Trends among treatments in this diameter range were generally similar to those in the total woody debris pool. Specifically, SOH contained significantly greater amounts of biomass than WTH while 20SR was not different from either WTH or SOH.  Within P. tremuloides systems, we observed high stocks of smaller diameter slash material for all prescribed slash retention treatments. Most notably, WTH retains much more material than anticipated, up to 50% of available slash. These results reflect the high levels of breakage during winter harvest operations in these stands and, consequently, warrant consideration when anticipating the impacts of biomass harvesting on woody debris pools. Further investigation is necessary to understand how deliberate slash retention levels and season-of-harvest impact woody debris in other forest systems.", "keywords": ["0106 biological sciences", "2. Zero hunger", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2012.11.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2012.11.001", "name": "item", "description": "10.1016/j.foreco.2012.11.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2012.11.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-03-01T00:00:00Z"}}, {"id": "2995887446", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:27:22Z", "type": "Journal Article", "created": "2019-12-18", "title": "Determining threshold values for root-soil water weighted plant water deficit index based smart irrigation", "description": "Trabajo desarrollado bajo la financiaci\u00f3n del proyecto \u201cSoil Hydrology research platform underpinning innovation to manage water scarcity in European and Chinese cropping Systems\u201d (773903), coordinado por Jos\u00e9 Alfonso G\u00f3mez Calero, investigador del Instituto de Agricultura Sostenible (IAS). Plant water deficit index (PWDI) represents the extent of water stress by relating soil moisture to the ability of a plant to take up water including consideration of the relative distribution of soil water to roots. However, for a smart irrigation decision support system, we are challenged in determining reliable thresholds of PWDI to initiate irrigation events to achieve predetermined yield and/or water use efficiency (WUE) targets. Taking drip irrigated maize and sprinkler irrigated alfalfa as examples, field experiments were conducted to investigate the choice and effects of PWDI thresholds. The results indicated that, with increasing PWDI thresholds, irrigation times and quantity of water, as well as crop transpiration, growth, and yield, were all significantly limited while WUE was enhanced except under extremely stressed conditions. To disconnect the unpredictable effects of other factors, yield and WUE were normalized to their corresponding potential values. Within the experimentally determined range of PWDI, relative yield and WUE were described with linear functions for maize, and linear and quadratic functions for alfalfa, allowing identification of the most efficient threshold value according to the objective parameter of choice. The method described can be adopted in smart irrigation decision support systems with consideration of spatial variability and after further verification and improvement under more complicated situations with various crop types and varieties, environmental conditions, cultivation modes, and wider or dynamic PWDI thresholds allowing regulated deficit irrigation. This research was supported partly by National Key Research and Development Program of China (2017YFE0118100, 2016YFD0200303), National Natural Science Foundation of China (U1706211, 51790532), Special Fund for Scientific Research in the Public Interest (201411009), and the European Union\u2019s Horizon 2020 research and innovation programme under Project SHui, grant agreement No 773903. Peer reviewed", "keywords": ["0106 biological sciences", "2. Zero hunger", "Yield", "PWDI", "Water stress", "Alfalfa", "Water use efficiency", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "Maize", "13. Climate action", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/2995887446"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20Water%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "2995887446", "name": "item", "description": "2995887446", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/2995887446"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-03-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2012.11.042", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:38Z", "type": "Journal Article", "created": "2013-03-21", "title": "Carbon Stocks In Managed And Unmanaged Old-Growth Western Redcedar And Western Hemlock Stands Of Canada\u2019S Inland Temperate Rainforests", "description": "Abstract   In the inland temperate rainforests (ITRs) of east-central British Columbia (BC), there is a lack of baseline carbon (C) stocks information for managed and unmanaged stands of old-growth western redcedar and hemlock. To fill the knowledge gap, we estimated C stocks of live trees, snags, coarse woody debris and forest floor (excluding mineral soil) and evaluated impacts of harvesting on these C stocks. We also accounted for heart-rot in stem wood of live cedar and hemlock, and identified uncertainties in live-tree C stocks estimation for more accurate assessment of the C. Forests stands were selected from three previously established silvicultural systems trials that contrasted three levels of harvesting intensity (clear-cut (CC, 0% retention), group retention (GR, 30%), group selection (GS, 70%)), and uncut old-growth (100%). Despite a high incidence of heart-rot, live-tree and total forest (minus mineral soil) C stocks (348\u00a0\u00b1\u00a0155 and 455\u00a0\u00b1\u00a0156\u00a0Mg C ha\u22121, respectively) in uncut old-growth ITR stands were within the range of regional averages for old-growth forests in the Pacific Northwest (US) and coastal cedar and hemlocks forests of BC. Intensive harvesting (CC and GR) resulted in significant reductions in total forest C stocks (78% and 64%) relative to uncut old-growth stands. By contrast, total forest C stocks in stands where high-retention harvesting (GS) occurred were reduced by only 13% (not significant) relative to uncut old-growth stands. Analysis of uncertainty identified allometric equations to be the largest contributor to total uncertainty in live-tree C stocks, indicating the need to develop more robust equations to reduce the uncertainty for more accurate evaluation of harvesting impacts in old ITRs. Although heart-rot had no significant effects on forest C stocks in this study, we need a better scientific understanding of their contribution to live-tree C in this ecosystem. Nonetheless, these results underscore the importance of conserving C-rich old ITRs where possible and the potential for high-retention harvesting to maintain C stocks in this forest type.", "keywords": ["0106 biological sciences", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Chris Hawkins, Arthur L. Fredeen, Eiji Matsuzaki, Paul Sanborn, Cindy Shaw,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2012.11.042"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2012.11.042", "name": "item", "description": "10.1016/j.foreco.2012.11.042", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2012.11.042"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-06-01T00:00:00Z"}}, {"id": "3129983189", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:27:37Z", "type": "Journal Article", "created": "2021-02-23", "title": "Using NDVI for the assessment of canopy cover in agricultural crops within modelling research", "description": "Open AccessPeer reviewed", "keywords": ["2. Zero hunger", "0106 biological sciences", "Meta-analysis", "Canopy cover", "NDVI", "Crop modelling", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/3129983189"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Computers%20and%20Electronics%20in%20Agriculture", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "3129983189", "name": "item", "description": "3129983189", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/3129983189"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-01T00:00:00Z"}}, {"id": "10.1007/s00226-022-01398-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:14:39Z", "type": "Journal Article", "created": "2022-07-11", "title": "Timber tensile strength in mixed stands of European beech (Fagus sylvatica L.).", "description": "Abstract<p>The conversion to climate-stable, resilient and productive forests has resulted in an increasing share of mixed stands. Different growth conditions and silvicultural treatments lead to an increased scatter in strength compared to what is expected from monoculture experience. The study (i) quantified the magnitude of variation in strength of European beech timber from stands of different composition and (ii) showed the impact of grading on the characteristic strength value of timber coming from those stands. Strength grading models and machine settings for hardwood tensile classes on over 900 European beech (Fagus sylvatica L.) boards were derived. One model used only the dynamic modulus of elasticity (Edyn), and a more complex model used a knot value in addition. Afterwards, 407 boards from pure beech stands as well as mixed stands of beech with Douglas fir (Pseudotsuga menziesii (Mirb.) Franco), Norway spruce (Picea abies (L.) Karst.), sessile oak (Quercus petraea (Matt.) Liebl.), and Scots pine (Pinus sylvestris L.) were graded and analyzed for their material properties from tension tests parallel to grain. Although a variance components analysis attributed only 4.2% of the variation to mixture, the ungraded timber showed significant strength differences between the pure and the beech-pine stands (65.2 versus 46.6\uffc2\uffa0MPa). The yield of the material graded to the highest class in a class combination was higher in pure beech stands. The required characteristic strength values were mostly met for boards from the pure stands; while boards from the beech-pine mixed stands hardly ever reached the required values. To reduce strength variation and guarantee reliable timber products, strength grading should consider the various growth situations in forests when sampling material for the derivation of settings.</p>", "keywords": ["690", "0106 biological sciences", "Original ; Wood Science & Technology ; Ceramics", " Glass", " Composites", " Natural Materials ; Manufacturing", " Machines", " Tools", " Processes", "ddc:630", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "ddc:"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s00226-022-01398-7.pdf"}, {"href": "https://doi.org/10.1007/s00226-022-01398-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Wood%20Science%20and%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00226-022-01398-7", "name": "item", "description": "10.1007/s00226-022-01398-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00226-022-01398-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10.1007/s00442-003-1391-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:14:48Z", "type": "Journal Article", "created": "2003-12-10", "title": "Carbon Availability Controls The Growth Of Detritivores (Lumbricidae) And Their Effect On Nitrogen Mineralization", "description": "Activity of soil decomposer microorganisms is generally limited by carbon availability, but factors controlling saprophagous soil animals remain largely unknown. In contrast to microorganisms, animals are unable to exploit mineral nutrient pools. Therefore, it has been suggested that soil animals, and earthworms in particular, are limited by the availability of nitrogen. In contrast to this view, a strong increase in density and biomass of endogeic earthworms in response to labile organic carbon addition has been documented in field experiments. The hypothesis that the growth of endogeic earthworms is primarily limited by carbon availability was tested in a laboratory experiment lasting for 10 weeks. In addition, it was investigated whether the effects of earthworms on microbial activity and nutrient mineralization depend on the availability of carbon resources. We manipulated food availability to the endogeic earthworm species Octolasion tyrtaeum by using two soils with different organic matter content, providing access to different amounts of soil, and adding labile organic carbon (glucose) enriched in (13)C. Glucose addition strongly increased the growth of O. tyrtaeum. From 8 to 17% of the total C in earthworm tissue was assimilated from the glucose added. Soil microbial biomass was not strongly affected by the addition of glucose, though basal respiration was significantly increased and up to 50% of the carbon added as glucose was incorporated into soil organic matter. The impact of earthworms on the mineralization and leaching of nitrogen depended on C availability. As expected, in C-limited soil, the presence of earthworms strongly increased nitrogen leaching. However, when C availability was increased by the addition of glucose, this pattern was reversed, i.e. the presence of O. tyrtaeum decreased nitrogen leaching and its availability to soil microflora. We conclude that irrespective of the total carbon content of soils, O. tyrtaeum was primarily limited by carbon, and that increased carbon availability allowed earthworms to be more effective in mobilizing N. The presence of earthworms increases C limitation of soil microorganisms, due to increased availability of N and P in earthworm casts or a direct depletion of easily available carbon resources by earthworms.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Carbon Isotopes", "Nitrogen", "Population Dynamics", "Biological Availability", "Phosphorus", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Carbon", "Soil", "Animals", "0401 agriculture", " forestry", " and fisheries", "Oligochaeta", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1007/s00442-003-1391-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-003-1391-4", "name": "item", "description": "10.1007/s00442-003-1391-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-003-1391-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-01-01T00:00:00Z"}}, {"id": "10.1016/j.agee.2004.09.003", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:38Z", "type": "Journal Article", "created": "2004-11-06", "title": "Long-Term Fertilization Effects On Grain Yield, Water-Use Efficiency And Soil Fertility In The Dryland Of Loess Plateau In China", "description": "Abstract   Wheat (Triticum aestivum L.) and corn (Zea mays L.) rotation system is important for food security in the Loess Plateau of China. Grain yield and water-use efficiency (WUE: grain yield per unit of water consumed) trends, and changes in soil properties during a 24-year fertilization experiment in Pingliang, Gansu, China, were recorded. Mean yields of wheat for the 16 years started in 1981 ranged from 1.29\u00a0t\u00a0ha\u22121 for the unfertilized plots (CK) to 4.71\u00a0t\u00a0ha\u22121 for the plots that received manure (M) annually with inorganic nitrogen (N) and phosphorus (P) fertilizers (MNP). Corn yields for the 6 years started in 1979 averaged 2.29 and 5.61\u00a0t\u00a0ha\u22121 in the same treatments. Yields and WUEs declined significantly with lapse of time except CK and MNP for wheat. Wheat yields with the N and M declined at rate of 77 and 81\u00a0kg\u00a0ha\u22121\u00a0year\u22121, but the decline of 57\u00a0kg\u00a0ha\u22121\u00a0year\u22121 for NP was similar to that of 61\u00a0ha\u22121\u00a0year\u22121 for straw with N annually and P every second year (SNP). Likewise, the corn yields and WUEs declined from 160 to 250\u00a0kg\u00a0ha\u22121\u00a0year\u22121 and from 0.01 to 0.03\u00a0kg\u00a0m\u22123\u00a0year\u22121 among treatments, respectively. These declines were likely to loss of soil fertility and gradual dry weather. Yields were significantly correlated with seasonal evapotranspiration with slopes ranging from 0.5 to 1.27\u00a0kg\u00a0m\u22123 for wheat and from 1.15 to 2.03\u00a0kg\u00a0m\u22123 for corn. Soil organic carbon (SOC), total N (TN), and total P (TP) gradually built up with time except the CK, in which TN and TP remained unchanged but SOC and available P (AP) decreased. Soil AP decreased in the N. Soil available K declined rapidly without straw or manure. Balanced fertilization should be encouraged to ensure sustainable productivity in this intensive cropping system. The greatest SOC increases of about 160\u00a0mg\u00a0ha\u22121\u00a0year\u22121 occurred in the SNP and MNP, suggesting that long-term additions of organic materials to soil could increase soil water-holding capacity which, in return, improves water availability to plants and arrests yield declines, and decrease CO2 emission from agricultural soils and sustain land productivity.", "keywords": ["2. Zero hunger", "0106 biological sciences", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "12. Responsible consumption"], "contacts": [{"organization": "Luo Junjie, Wang Yong, Tinglu Fan, Zhou Guangye, Bob A. Stewart,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2004.09.003"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2004.09.003", "name": "item", "description": "10.1016/j.agee.2004.09.003", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2004.09.003"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-04-01T00:00:00Z"}}, {"id": "10.1016/j.agee.2008.02.015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:39Z", "type": "Journal Article", "created": "2008-04-09", "title": "Prescribed Fire And Grazing Effects On Carbon Dynamics In A Northern Mixed-Grass Prairie", "description": "Rangelands are complex systems that occupy more than 50% of the land area in the world. Carbon cycling on rangelands is generally understood, but details concerning agricultural management practices of prescribed fire and grazing are not well defined. Field experiments were conducted on northern mixedgrass prairie in eastern Montana with undisturbed, burned, and grazed treatments established in 2003. Designated plots were burned during the dormant season (December) in 2003. Grazing occurred in 2004 and 2005, removing 45\u201350% of then currently available leaf area. Responses were evaluated monthly from April to October of 2004 and 2005. Abiotic measurements included: precipitation, soil water content, photosynthetically active solar radiation, and temperatures of soil and leaves. Biotic responses were: standing crop, leaf area, root mass to a soil depth of 30 cm, and CO2 fluxes above the mixed-grass prairie canopy and bare soil. Moisture available to the northern mixed-grass prairie system at this location was the primary identifiable factor that either directly or indirectly controlled much of the CO2 flux. Treatment effects on seasonal changes in soil water content were consistent across years, with grazed and undisturbed plots being similar. Burned plots had less soil water content than grazed or undisturbed plots in late spring and early summer with soil water content becoming similar across all treatments in late summer and into autumn. Despite differences in soil water content, CO2 fluxes above either burned or undisturbed plots were dynamically similar. However, peak CO2 flux of grazed plots was shifted one month earlier in 2004 and was decreased in 2005, relative to the undisturbed and burned plots. Over the course of this experiment, cumulative CO2 flux on the grazed plots was 72% of that on the burned and undisturbed plots. Depending on conditions during the growing season, C removed from northern mixed-grass prairie rangeland may not be re-sequestered during the growing season immediately post-burning. We conclude that the studied ecosystem is unlikely to sequester considerable C, irrespective of imposed agricultural practices, due to the relatively low CO2 flux and the small magnitude of treatment observed. Published by Elsevier B.V.", "keywords": ["0106 biological sciences", "2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2008.02.015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2008.02.015", "name": "item", "description": "10.1016/j.agee.2008.02.015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2008.02.015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-08-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2013.06.065", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:39Z", "type": "Journal Article", "created": "2013-08-02", "title": "Thinning And Recovery Effects On Soil Properties In Two Sites Of A Mediterranean Forest, In Cuenca Mountain (South-Eastern Of Spain)", "description": "Abstract   Thinning effects on soil microbial activity and biomass in two sites of a Mediterranean forest, in Cuenca Mountain (South-eastern of Spain), were compared 2\u20136\u00a0years following treatments. In order to study changes in these properties, five plots were established; three plots in mature natural site dominated by  Pinus pinaster  and  Quercus ilex  and two plots post-wildfire natural regeneration site dominated by  Quercus ilex . In each site, a silviculture treatment of thinning had been previously carried out, while the other was left as a forest control. Soil samples were taken during the dry season (July 2010) and after the first autumn rains (October 2010). The experiment consisted on a nested factorial design with two factors: the site (two levels: mature natural and regenerated) and thinning treatment nested within site effect (three levels in mature natural site: control, thinned in 2002 and thinned in 2004, and two levels within regenerated site: control and thinned in 2008).Several sensitive variables related to the soil microbial activity such as soil respiration and biomass carbon and some enzyme activities (urease, phosphatase, \u03b2-glucosidase and dehydrogenase) were evaluated. Physical and chemical soil variables (organic matter, total nitrogen, phosphorus, pH, conductivity and carbonates) were also measured. These variables of forest soil in autumn were highest that in summer. Also the results showed that thinning have a significant effect on soil microbiological variables and soil enzymatic activities. Thinning operations tended to alter soil variables and highly reduced the organic matter content. A significant correlation was also found between microbiological and biochemical variables and physic chemical variables, organic matter and total nitrogen. Adaptative management forest plans should consider these results in order to achieve sustainable forest management, especially in the context of soil quality and Mediterranean forest subjected to wildfire disturbances.", "keywords": ["0106 biological sciences", "2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2013.06.065"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2013.06.065", "name": "item", "description": "10.1016/j.foreco.2013.06.065", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2013.06.065"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-01T00:00:00Z"}}, {"id": "10.1002/ece3.6803", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:14:19Z", "type": "Journal Article", "created": "2020-09-22", "title": "Background insect herbivory increases with local elevation but makes minor contribution to element cycling along natural gradients in the Subarctic", "description": "Abstract<p>Herbivores can exert major controls over biogeochemical cycling. As invertebrates are highly sensitive to temperature shifts (ectothermal), the abundances of insects in high\uffe2\uff80\uff90latitude systems, where climate warming is rapid, is expected to increase. In subarctic mountain birch forests, research has focussed on geometrid moth outbreaks, while the contribution of background insect herbivory (BIH) to elemental cycling is poorly constrained. In northern Sweden, we estimated BIH along 9 elevational gradients distributed across a gradient in regional elevation, temperature, and precipitation to allow evaluation of consistency in local versus regional variation. We converted foliar loss via BIH to fluxes of C, nitrogen (N), and phosphorus (P) from the birch canopy to the soil to compare with other relevant soil inputs of the same elements and assessed different abiotic and biotic drivers of the observed variability. We found that leaf area loss due to BIH was ~1.6% on average. This is comparable to estimates from tundra, but considerably lower than ecosystems at lower latitudes. The C, N, and P fluxes from canopy to soil associated with BIH were 1\uffe2\uff80\uff932 orders of magnitude lower than the soil input from senesced litter and external nutrient sources such as biological N fixation, atmospheric deposition of N, and P weathering estimated from the literature. Despite the minor contribution to overall elemental cycling in subarctic birch forests, the higher quality and earlier timing of the input of herbivore deposits to soils compared to senesced litter may make this contribution disproportionally important for various ecosystem functions. BIH increased significantly with leaf N content as well as local elevation along each transect, yet showed no significant relationship with temperature or humidity, nor the commonly used temperature proxy, absolute elevation. The lack of consistency between the local and regional elevational trends calls for caution when using elevation gradients as climate proxies.</p>", "keywords": ["0106 biological sciences", "OPEROPHTERA-BRUMATA", "MOTH HERBIVORY", "insect herbivory", "NUTRIENT RESORPTION", "EPIRRITA-AUTUMNATA", "PLANT DEFENSES", "space\u2010for\u2010time substitution", "carbon cycling", "01 natural sciences", "fast cycle versus slow cycle", "LITTER DECOMPOSITION", "MOUNTAIN BIRCH", "Subarctic mountain birch forest", "QH540-549.5", "Original Research", "Ekologi", "CLIMATE-CHANGE", "Ecology", "LEAF-AREA INDEX", "space-for-time substitution", "nutrient cycling", "15. Life on land", "Climate Science", "ECOSYSTEM CARBON", "13. Climate action", "Klimatvetenskap"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.6803"}, {"href": "https://doi.org/10.1002/ece3.6803"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology%20and%20Evolution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/ece3.6803", "name": "item", "description": "10.1002/ece3.6803", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/ece3.6803"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-06-08T00:00:00Z"}}, {"id": "10.1002/ecy.1539", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:14:20Z", "type": "Journal Article", "created": "2016-07-28", "title": "Chronic Warming Stimulates Growth Of Marsh Grasses More Than Mangroves In A Coastal Wetland Ecotone", "description": "Abstract<p>Increasing temperatures and a reduction in the frequency and severity of freezing events have been linked to species distribution shifts. Across the globe, mangrove ranges are expanding toward higher latitudes, likely due to diminishing frequency of freezing events associated with climate change. Continued warming will alter coastal wetland plant dynamics both above\uffe2\uff80\uff90 and belowground, potentially altering plant capacity to keep up with sea level rise. We conducted an in situ warming experiment, in northeast Florida, to determine how increased temperature (+2\uffc2\uffb0C) influences co\uffe2\uff80\uff90occurring mangrove and salt marsh plants. Warming was achieved using passive warming with three treatment levels (ambient, shade control, warmed). Avicennia germinans, the black mangrove, exhibited no differences in growth or height due to experimental warming, but displayed a warming\uffe2\uff80\uff90induced increase in leaf production (48%). Surprisingly, Distichlis spicata, the dominant salt marsh grass, increased in biomass (53% in 2013 and 70% in 2014), density (41%) and height (18%) with warming during summer months. Warming decreased plant root mass at depth and changed abundances of anaerobic bacterial taxa. Even while the poleward shift of mangroves is clearly controlled by the occurrences of severe freezes, chronic warming between these freeze events may slow the progression of mangrove dominance within ecotones.</p>", "keywords": ["0106 biological sciences", "Time Factors", "13. Climate action", "Climate Change", "Wetlands", "Florida", "Avicennia", "14. Life underwater", "15. Life on land", "Poaceae", "Plant Roots", "01 natural sciences", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1002/ecy.1539"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/ecy.1539", "name": "item", "description": "10.1002/ecy.1539", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/ecy.1539"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-11-01T00:00:00Z"}}, {"id": "10.1007/s00442-005-0249-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:14:49Z", "type": "Journal Article", "created": "2005-10-04", "title": "Fungal Community Composition And Metabolism Under Elevated Co2 And O-3", "description": "Atmospheric CO(2) and O(3) concentrations are increasing due to human activity and both trace gases have the potential to alter C cycling in forest ecosystems. Because soil microorganisms depend on plant litter as a source of energy for metabolism, changes in the amount or the biochemistry of plant litter produced under elevated CO(2) and O(3) could alter microbial community function and composition. Previously, we have observed that elevated CO(2) increased the microbial metabolism of cellulose and chitin, whereas elevated O(3) dampened this response. We hypothesized that this change in metabolism under CO(2) and O(3) enrichment would be accompanied by a concomitant change in fungal community composition. We tested our hypothesis at the free-air CO(2) and O(3) enrichment (FACE) experiment at Rhinelander, Wisconsin, in which Populus tremuloides, Betula papyrifera, and Acer saccharum were grown under factorial CO(2) and O(3) treatments. We employed extracellular enzyme analysis to assay microbial metabolism, phospholipid fatty acid (PLFA) analysis to determine changes in microbial community composition, and polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) to analyze the fungal community composition. The activities of 1,4-beta-glucosidase (+37%) and 1,4,-beta-N-acetylglucosaminidase (+84%) were significantly increased under elevated CO(2), whereas 1,4-beta-glucosidase activity (-25%) was significantly suppressed by elevated O(3). There was no significant main effect of elevated CO(2) or O(3) on fungal relative abundance, as measured by PLFA. We identified 39 fungal taxonomic units from soil using DGGE, and found that O(3) enrichment significantly altered fungal community composition. We conclude that fungal metabolism is altered under elevated CO(2) and O(3), and that there was a concomitant change in fungal community composition under elevated O(3). Thus, changes in plant inputs to soil under elevated CO(2) and O(3) can propagate through the microbial food web to alter the cycling of C in soil.", "keywords": ["0106 biological sciences", "Food Chain", "Extracellular Enzymes", "Science", "Ecology and Evolutionary Biology", "Polymerase Chain Reaction\u2013Denaturing Gradient Gel Electrophoresis", "Polymerase Chain Reaction", "01 natural sciences", "Soil Microbial Community", "Soil", "Ozone", "Health Sciences", "Acetylglucosaminidase", "Cellular and Developmental Biology", "Ecosystem", "Soil Microbiology", "beta-Glucosidase", "Fatty Acids", "Fungi", "Natural Resources and Environment", "Molecular", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "Fungal Metabolism", "Carbon", "Free-air CO 2 and O 3 Enrichment", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Extracellular Space"]}, "links": [{"href": "https://doi.org/10.1007/s00442-005-0249-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-005-0249-3", "name": "item", "description": "10.1007/s00442-005-0249-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-005-0249-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-10-05T00:00:00Z"}}, {"id": "10.1016/j.agee.2017.09.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:47Z", "type": "Journal Article", "created": "2017-09-28", "title": "Conservation Agriculture Based On Crop Rotation And Tillage In The Semi-Arid Loess Plateau, China: Effects On Crop Yield And Soil Water Use", "description": "Abstract   In the semi-arid Loess Plateau region, water stress is the main limiting factor for rainfed agriculture; thus, conservation agriculture has been proposed to address this problem in these areas. Since 2007, a middle- to long-term experiment was established in Heyang County, Shaanxi, a region typical of the Loess Plateau, to evaluate the impact of no-tillage (NT), subsoiling tillage (ST) and conventional tillage (CT) on crop yield, water use, and soil water dynamics for winter wheat (Triticum aestivum L.) continuous cropping (WWC), spring maize (Zea mays L.) continuous cropping (SMC), and spring maize-winter wheat rotation cropping (MWR) systems. The highest four-year average wheat yield amounting to 5958\u00a0kg\u00a0ha\u22121 was attained in MWR-ST, while the highest maize yield advantage averaging 772\u00a0kg\u00a0ha\u22121 was obtained in SMC-NT. There were no significant differences in evapotranspiration (ET) and soil water storage (SWS) at the sowing/harvest stage among all treatments, but the relative greater average SWS before sowing was maintained under conservation tillage practices. The highest water use efficiency (WUE) reaching 10.0\u00a0kg\u00a0ha\u22121\u00a0mm\u22121 for wheat in MWR and 20.3\u00a0kg\u00a0ha\u22121\u00a0mm\u22121 for maize in SMC was obtained under ST treatment, while the significant WUE advantage of NT compared with CT was only obtained in SMC. At key growth stages, the higher soil water content (SWC) in the 0\u2013200\u00a0cm soil profile was maintained in the conservation tillage and MWR system for wheat but in the conservation tillage and SMC system for maize. The longer-duration fallows did not produce a better effect on SWS at the sowing stage, while the reduction of soil disturbance enhanced SWS compared with CT.  In summary, tillage, cropping system, and their interaction effect produced significant effects on crop production and soil water status, and the above findings might be helpful to draft appropriate management strategies to realize optimal crop yield based on water use.", "keywords": ["0106 biological sciences", "2. Zero hunger", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water"], "contacts": [{"organization": "Ningning Chen, Xiaoli Wang, Qian Wang, Shulan Wang, Rui Wang, Wei Lyu, Yujiao Zhang, Lei Sun, Jun Li,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2017.09.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2017.09.011", "name": "item", "description": "10.1016/j.agee.2017.09.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2017.09.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-01T00:00:00Z"}}, {"id": "10.1007/s10646-009-0329-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:04Z", "type": "Journal Article", "created": "2009-06-06", "title": "Trace Elements And Activity Of Antioxidative Enzymes In Cistus Ladanifer L. Growing On An Abandoned Mine Area", "description": "The Mediterranean shrub Cistus ladanifer grows naturally in S\u00e3o Domingos (Portugal), an abandoned copper mine. High levels of trace elements in plants can generate oxidative stress increasing the activity of antioxidant enzymes. The aim of this work was to evaluate and compare As, Cu, Pb and Zn concentrations and the activity of the soluble and cell wall ionically bounded forms of the enzymes catalase, peroxidase and superoxide dismutase in leaves of C. ladanifer, collected in spring and summer, growing on S\u00e3o Domingos mine and on a non-contaminated area (Pomar\u00e3o). S\u00e3o Domingos soils showed high total concentrations of As (2.6 g kg(-1)) and Pb (7.3 g kg(-1)) however the available fraction represented less than 1.5% of the total. C. ladanifer population from mine showed tolerance to Pb and Zn, which attain in leaves concentrations considered toxic for plants. The enzymatic activity of catalase, peroxidise and superoxide dismutase varied with plant populations and seasons, although with no particular trend, being specific to each trace element and enzyme cell localization. Catalase activity was evenly distributed between the soluble and ionically bounded forms, whereas the ionically bounded form of peroxidase predominated relatively to total activity, and the opposite was observed for superoxide dismutase. Spring and summer leaves from the two areas presented enzymatic activities in both fractions except to peroxidase soluble activities in leaves collected in summer. C. ladanifer enzymatic activity seems to be related with the co-existence of different stress factors (trace elements concentration, temperature, UV radiation and drought). The survival and growth of this species on contaminated mining soils is due to the presence of effective antioxidant enzyme-based defence systems.", "keywords": ["0106 biological sciences", "trace elements", "Industrial Waste", "antioxidative enzymes", "Antioxidative enzymes", "01 natural sciences", "Mining", "Soil", "Cell Wall", "Soil Pollutants", "adaptative capacity", "0105 earth and related environmental sciences", "Trace elements", "Portugal", "Cistus", "Adaptative capacity", "15. Life on land", "Sulphide abandoned mine", "cistus ladanifer L.", "Trace Elements", "Plant Leaves", "Oxidative Stress", "sulphide abandoned mine", "Cistus ladanifer L.", "Oxidoreductases", "Copper"]}, "links": [{"href": "https://doi.org/10.1007/s10646-009-0329-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecotoxicology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10646-009-0329-y", "name": "item", "description": "10.1007/s10646-009-0329-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10646-009-0329-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-06-05T00:00:00Z"}}, {"id": "10.1016/j.foreco.2005.10.033", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:33Z", "type": "Journal Article", "created": "2005-11-09", "title": "Soil Carbon, Nitrogen, And Base Cation Cycling 17 Years After Whole-Tree Harvesting In A Low-Elevation Red Spruce (Picea Rubens)-Balsam Fir (Abies Balsamea) Forested Watershed In Central Maine, Usa", "description": "Abstract   Forest harvesting and regeneration may cause changes in soil and solution chemistry that adversely affect forest productivity and environmental quality. The objective of this study was to assess soil carbon (C), nitrogen (N), and base cation cycling 17 years following whole-tree harvesting in a low-elevation red spruce (Picea rubens)-balsam fir (Abies balsamea) watershed (regenerating watershed) in central Maine, USA. Results for forest floor and mineral soil nutrient concentrations and pools were compared to an adjacent non-harvested 77\u201385-year-old spruce-fir watershed (reference watershed) and to preharvest conditions obtained 17 years earlier. The total soil (forest floor\u00a0+\u00a0mineral soil) exchangeable magnesium (Mg) pool was 32% and 44% lower (P\u00a0\u2264\u00a00.05), respectively, in the regenerating and reference watersheds compared to the preharvest condition. Nitrogen and exchangeable potassium (K) contents in the forest floor, however, were 26% and 65% lower (P\u00a0\u2264\u00a00.05), respectively, for the preharvest condition compared to the reference watershed; no differences (P\u00a0>\u00a00.05) occurred between the reference and regenerating watersheds. Mineral soil exchangeable calcium (Ca) and sodium (Na) concentrations and contents, effective cation exchange capacity (CECe), and base saturation were at least twice as high (P\u00a0\u2264\u00a00.05) in the regenerating compared to the reference watershed or preharvest conditions. Changes in the N and Mg pools indicate that atmospheric deposition may be a concern for Mg depletion and N saturation at this site. However, Ca depletion does not appear to be occurring at this site as a result of either acid deposition or whole-tree harvesting, although there are indications that the reference watershed may be in the initial stages of altered Ca cycling, which may lead to depletion.  Soil solution and stream nutrients were compared between the regenerating and reference watersheds. The soil solution base cation and inorganic anion concentrations were two to four times higher (P\u00a0\u2264\u00a00.05) in the reference compared to the regenerating watershed. In addition, bicarbonate (HCO3\u2212) accounted for 63% of the cation:anion balance in soil solution of the regenerating watershed, but less than 1% in the reference watershed (P\u00a0\u2264\u00a00.05). Soil solution Ca2+ and Mg2+ concentrations at 50-cm depth in the regenerating watershed showed a linear decrease (P\u00a0\u2264\u00a00.05) 10\u201317 years after regeneration, whereas the stream Ca2+ and Mg2+ concentrations showed a linear increase (P\u00a0\u2264\u00a00.05) during that timeframe. No consistent temporal trends (P\u00a0>\u00a00.05) in stream Ca2+ and Mg2+ occurred in the reference watershed. Higher concentrations (P\u00a0\u2264\u00a00.05) of soil air carbon dioxide (CO2), soil solution dissolved inorganic C (DIC), and soil exchangeable Na, at or below 20\u00a0cm in the regenerating watershed suggest that these contrasting results were due to higher mineral weathering rates in the regenerating watershed. The soil elemental and exchangeable cation pools indicate that whole-tree harvesting may be a sustainable practice for at least one rotation. However, the soil solution and stream chemistry indicate that the regenerating watershed has not yet reached equilibrium for nutrient cycling.", "keywords": ["0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "James W. McLaughlin, Stephanie A. Phillips,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2005.10.033"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2005.10.033", "name": "item", "description": "10.1016/j.foreco.2005.10.033", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2005.10.033"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-02-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2005.10.037", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:33Z", "type": "Journal Article", "created": "2005-11-22", "title": "Restoration Treatment Effects On The Understory Of Ponderosa Pine/Douglas-Fir Forests In Western Montana, Usa", "description": "Abstract   Fire exclusion and high-grade logging have altered the structure and function of ponderosa pine (Pinus ponderosa) forests across the American West. Restoration treatments are increasingly being used in these forests to move stand density, structure, and species composition toward more historically sustainable conditions. Yet little research has focused on how restoration treatments influence the associated understory plant communities, particularly in the northern Rocky Mountains of the USA. To this end, we implemented a replicated (N\u00a0=\u00a03), randomized block experiment in a second-growth western Montana ponderosa pine/Douglas-fir (Pseudotsuga menziesii) forest that initiated after harvest in the early 1900s and has not burned since. We evaluated the effects of no action (control), silvicultural cutting (thin-only), spring burning (burn-only), and silvicultural cutting followed by spring burning (thin-burn) on the understory community. Treatments were implemented at an operational scale (9\u00a0ha). Data were collected before treatment and in three subsequent years, at two spatial scales: plot (1000\u00a0m2) and quadrat (1\u00a0m2). Richness, Simpson's evenness index, and cover were calculated for the total vascular plant community. Species origin and lifeform were used to further investigate richness and cover responses to treatment. Treatments differentially impacted the understory community, with the most dramatic changes in the thin-burn. The burn-only treatment initially reduced richness and cover of the understory, but by year three all active treatments increased plot-scale understory richness relative to pre-treatment and the control. Simpson's evenness increased the first growing season after burning, but was not influenced by treatment in subsequent years. Forbs, both native and exotic, were the most responsive lifeform and increased in richness and cover after thinning, with the greatest response in the thin-burn. Increased native richness was not detected at the quadrat-scale in any treatment, but was significant at the plot-scale in numerous combinations of treatments and years. A short-term reduction in shrub richness and abundance after burning was detected at the quadrat-scale. Sapling density was reduced in all active treatments. Although active treatments create more open overstories and increase understory diversity at the stand level, a mix of treated and untreated areas will likely maximize heterogeneity and diversity at the landscape scale.", "keywords": ["0106 biological sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Kerry L. Metlen, Carl E. Fiedler,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2005.10.037"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2005.10.037", "name": "item", "description": "10.1016/j.foreco.2005.10.037", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2005.10.037"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-02-01T00:00:00Z"}}, {"id": "10.1016/j.apsoil.2016.05.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:58Z", "type": "Journal Article", "created": "2016-06-11", "title": "Interactive Effects Of Precipitation Manipulation And Nitrogen Addition On Soil Properties In California Grassland And Shrubland", "description": "Abstract   Soil microbial communities and pools of carbon (C) and nitrogen (N) play an important role in ecosystem responses to precipitation variability and N deposition. In southern California, ecosystem vulnerability to these environmental change drivers may differ for grassland versus shrubland vegetation types. We hypothesized that (1) these vegetation types would differ in their responses to precipitation and N manipulation; (2) reduced precipitation (\u201cdrought treatment\u201d) would have a negative effect on soil microbial abundance and alter microbial community composition, (3) these changes would be associated with reductions in soil C and N pools, (4) N addition would increase microbial abundance as well as soil C and N pools, and (5) combined drought and N deposition would have offsetting effects on soil properties. We tested these hypotheses at the Loma Ridge Global Change Experiment in southern California. Across vegetation types, we found that microbial biomass based on phospholipid fatty acids declined with drought and N addition. Microbial composition differed more strongly by vegetation type than with environmental change treatments. Added precipitation had little effect on microbial biomass but reduced labile C and N pools; these reductions were mitigated by N addition. Drought reduced labile forms of soil C and N, whereas N addition increased labile soil C pools and all soil N pools. Negative effects of drought and N addition were additive for microbial biomass, which could inhibit soil C cycling if both of these environmental changes occur together. Drought interacted with N addition to significantly increase the most labile N pool under the drought\u00a0+\u00a0N treatment, which suggests a build-up of available N under these conditions. These results imply that multiple environmental changes may combine non-additively to affect below-ground microorganisms and soil C and N pools, which may have important consequences for ecosystem services such as productivity, biodiversity, and soil quality in Mediterranean climate regimes of North America.", "keywords": ["Veterinary and Food Sciences", "Soil Science", "Microbial communities", "Shrubland", "veterinary and food sciences", "Carbon and nitrogen cycle", "11. Sustainability", "Global change", "2. Zero hunger", "Agricultural", "Drought", "Agricultural and Veterinary Sciences", "Ecology", "Forestry Sciences", "Agronomy & Agriculture", "04 agricultural and veterinary sciences", "Biological Sciences", "15. Life on land", "Grassland", "Agricultural and Biological Sciences (miscellaneous)", "6. Clean water", "Environmental sciences", "Biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Environmental Sciences"]}, "links": [{"href": "https://escholarship.org/content/qt1p4898qc/qt1p4898qc.pdf"}, {"href": "https://doi.org/10.1016/j.apsoil.2016.05.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20Soil%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.apsoil.2016.05.018", "name": "item", "description": "10.1016/j.apsoil.2016.05.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.apsoil.2016.05.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-11-01T00:00:00Z"}}, {"id": "10.1007/s42729-020-00317-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:35Z", "type": "Journal Article", "created": "2020-08-12", "title": "Relationship Between Soil Properties and Banana Productivity in the Two Main Cultivation Areas in Venezuela", "description": "Open AccessTo identify the main edaphic variables most correlated to banana productivity in Venezuela and explore the development of an empirical correlation model to predict this productivity based on soil characteristics. Six agricultural fields located in two of the main banana production areas of Venezuela were selected. The experimental sites were in large farms (\u2265\u200950 ha) with four productivity levels in \u201cGran Nain\u201d bananas, with an area of 4 ha for each of four productive levels: High - High, High - Low, Low - High, and Low - Low. Sixty sampling points were used to characterize the soils under study. Additionally, a Productivity Index (PI) based on three different biometric data on plant productivity was proposed. Through hierarchical statistical analysis, the first 16 soil variables that best explained the PI were selected. Thus, five multiple linear regression models were estimated, using the stepwise regression method. Subsequently, a performance analysis was used to compare the prediction quality range and the error associated with the number of soil variables selected for the proposed models. The selected model included the following soil variables: Mg, penetration resistance, total microbial respiration, bulk density, and omnivorous free-living nematodes. These variables explain the PI with an R2 of 0.55, the mean absolute error (MAE) of 0.8, and the root of the mean squared error (RMSE) of 1.0. The five selected variables are proposed to characterize the soil Productivity Index in banana and could be used in a site-specific soil management program for the banana areas of Venezuela.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Penetration resistance", "Musaceae", "BULK DENSITY", "SOIL QUALITY", "Total microbial respiration", "04 agricultural and veterinary sciences", "15. Life on land", "TOTAL MICROBIAL RESPIRATION", "01 natural sciences", "Bulk density", "Soil quality", "FREE-LIVING NEMATODES", "MUSACEAE", "https://purl.org/becyt/ford/4.1", "0401 agriculture", " forestry", " and fisheries", "https://purl.org/becyt/ford/4", "Free-living nematodes", "PENETRATION RESISTANCE"]}, "links": [{"href": "https://link.springer.com/content/pdf/10.1007/s42729-020-00317-8.pdf"}, {"href": "https://doi.org/10.1007/s42729-020-00317-8"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Soil%20Science%20and%20Plant%20Nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s42729-020-00317-8", "name": "item", "description": "10.1007/s42729-020-00317-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s42729-020-00317-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-08-12T00:00:00Z"}}, {"id": "10.1016/j.eja.2022.126515", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:19Z", "type": "Journal Article", "created": "2022-04-26", "title": "Simulating water lateral inflow and its contribution to spatial variations of rainfed wheat yields", "description": "Spatial variations of crop yields are commonly observed in typical rainfed systems worldwide. It is accepted that such variations are likely to be associated, among other factors, with water spatial variations due to lateral water flows occurring in fields with undulating topography. However, some of the main processes governing water spatial distribution such as lateral flow are not entirely considered by the most commonly adopted crop simulation models. This brings uncertainty to the process of yield simulation at field-scale, especially under water-limited conditions. Although it is expected that lateral water movement determines spatial variations of crop yields, it is still unclear what is the net contribution of lateral water inflows (LIF) to spatial variations of rainfed yields in fields of undulating topography. In this sense, by combining field experimentation, simulation models (HYDRUS-1D and AquaCrop), and the use of artificial neural networks, we assessed the occurrence and magnitude of LIF, and their impact on wheat yields in Cordoba, Spain, over a 30-year period. Seasonal precipitation varied over 30 years from 212.8 to 759.5 mm, and cumulative LIF ranged from 30 to 125 mm. The ratio of seasonal cumulative LIF divided by seasonal precipitation varied from 10.7% to 38.9% over the 30 years. The net contribution of LIF to spatial variations of rainfed potential yields showed to be relevant but highly irregular among years. Despite the inter-annual variability, typical of Mediterranean conditions, the occurrence of LIF caused simulated wheat yields to vary + 16% from up to downslope areas of the field. The net yield responses to LIF, in downslope areas were on average 383 kg grain yield (GY) ha\u22121, and the LIF marginal water productivity reached 24.6 ( \u00b1 13.2) kg GY ha\u22121 mm\u22121 in years of maximum responsiveness. Decision makers are encouraged to take water spatial variations into account when adjusting management to different potential yielding zones within the same field. However, this process is expected to benefit from further advances in in-season weather forecasting that should be coupled with a methodological approach such as the one presented here. This research received funding from the European Commission under project SHui - Grant agreement ID 773903 and also from the Spanish Government under Grant PID2019-105793RB-I00. Peer reviewed", "keywords": ["0106 biological sciences", "2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.eja.2022.126515"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/European%20Journal%20of%20Agronomy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.eja.2022.126515", "name": "item", "description": "10.1016/j.eja.2022.126515", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.eja.2022.126515"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-07-01T00:00:00Z"}}, {"id": "10.1016/j.agee.2017.10.023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:47Z", "type": "Journal Article", "created": "2017-11-07", "title": "Critical review of the impacts of grazing intensity on soil organic carbon storage and other soil quality indicators in extensively managed grasslands", "description": "Livestock grazing intensity (GI) is thought to have a major impact on soil organic carbon (SOC) storage and soil quality indicators in grassland agroecosystems. To critically investigate this, we conducted a global review and meta-analysis of 83 studies of extensive grazing, covering 164 sites across different countries and climatic zones. Unlike previous published reviews we normalized the SOC and total nitrogen (TN) data to a 30\u00a0cm depth to be compatible with IPCC guidelines. We also calculated a normalized GI and divided the data into four main groups depending on the regional climate (dry warm, DW; dry cool, DC; moist warm, MW; moist cool, MC). Our results show that taken across all climatic zones and GIs, grazing (below the carrying capacity of the systems) results in a decrease in SOC storage, although its impact on SOC is climate-dependent. When assessed for different regional climates, all GI levels increased SOC stocks under the MW climate (+7.6%) whilst there were reductions under the MC climate (-19%). Under the DW and DC climates, only the low (+5.8%) and low to medium (+16.1%) grazing intensities, respectively, were associated with increased SOC stocks. High GI significantly increased SOC for C4-dominated grassland compared to C3-dominated grassland and C3-C4 mixed grasslands. It was also associated with significant increases in TN and bulk density but had no effect on soil pH. To protect grassland soils from degradation, we recommend that GI and management practices should be optimized according to climate region and grassland type (C3, C4 or C3-C4 mixed).", "keywords": ["330", "QH301 Biology", "630", "Article", "QH301", "NE/M021327/1", "Grazing intensity", "SDG 13 - Climate Action", "grazing", "2. Zero hunger", "Soil organic carbon", "Natural Environment Research Council (NERC)", "NE/P019455/1", "04 agricultural and veterinary sciences", "15. Life on land", "Grassland", "soil organic carbon", "Grazing", "grazing intensity", "total nitrogen", "13. Climate action", "NE/M016900/1", "NE/M019713/1", "Biotechnology and Biological Sciences Research Council (BBSRC)", "0401 agriculture", " forestry", " and fisheries", "BB/N013484/1", "grassland", "BB/N013468/1"]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2017.10.023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2017.10.023", "name": "item", "description": "10.1016/j.agee.2017.10.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2017.10.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-02-01T00:00:00Z"}}, {"id": "10.1016/j.agee.2020.107082", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:15:47Z", "type": "Journal Article", "created": "2020-07-23", "title": "Crop type and within-field location as sources of intraspecific variations in the phenology and the production of floral and fruit resources by weeds", "description": "Abstract   In arable farming, weeds provide important floral and seed resources that have the potential to support the provision of ecosystem services such as pollination or pest control. Estimating the production of these weed resources in the landscape is however not trivial as large-scale surveys of weed communities are usually conducted once in the season with a timing that may not coincide with the flowering and fruiting stages of all weed species. More, intraspecific variation in the mortality and phenology of individual weed species may arise from differences in the quality of the growing environment of each plant. In this study, we monitored the phenology of 30 common weed species in the field core and the field edge of 64 commercial fields grown with 6 crop types. Our hypothesis was that the production of resources by an individual plant would be modulated by its within-field location and by the crop type where it grows. We quantified floral (proportion, starting date and duration of flowering, dry biomass at flowering as a proxy for the amount of flowers) and seed resource production (proportion and starting date of fruiting). For most species, flowering and fruiting success were higher in field edges than in field cores and were lower in cereal crops than in other crops. Weeds flowered and fruited earlier and the flowering period was longer in field edges, except those of cereal crops. Dry biomass at flowering varied with field location either way, depending on the weed species, but tended to be lower in cereal crops than in other crops. This important intraspecific phenological variability in the production of seed and/or flower or resources should be considered when evaluating the contribution of weed communities to ecosystem services. It also suggests that within an agricultural landscape, the amount, timing and duration of provision of services by weeds could be enhanced by maintaining sufficient lengths of field edges and by growing a diversity of crop types.", "keywords": ["580", "[SDE] Environmental Sciences", "0106 biological sciences", "2. Zero hunger", "pollination", "farming management", "edge", "04 agricultural and veterinary sciences", "15. Life on land", "field", "phenology", "01 natural sciences", "630", "flowering success", "[SDE]Environmental Sciences", "0401 agriculture", " forestry", " and fisheries", "pest control"]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2020.107082"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2020.107082", "name": "item", "description": "10.1016/j.agee.2020.107082", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2020.107082"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2014.03.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:39Z", "type": "Journal Article", "created": "2014-03-31", "title": "Effectiveness Of Fuel Treatments For Mitigating Wildfire Risk And Sequestering Forest Carbon: A Case Study In The Lake Tahoe Basin", "description": "Fuel-reduction treatments are used extensively to reduce wildfire risk and restore forest diversity and function. In the near future, increasing regulation of carbon (C) emissions may force forest managers to balance the use of fuel treatments for reducing wildfire risk against an alternative goal of C sequestration. The objective of this study was to evaluate how long-term fuel treatments mitigate wildfires and affect forest C. For the Lake Tahoe Basin in the central Sierra Nevada, USA, fuel treatment efficiency was explored with a landscape-scale simulation model, LANDIS-II, using five fuel treatment scenarios and two (contemporary and potential future) fire regimes. Treatment scenarios included applying a combination of light (hand) and moderate (mechanical) forest thinning continuously through time and transitioning from these prescriptions to a more mid-seral thinning prescription, both on a 15 and 30 year rotation interval. In the last scenario, fuel treatments were isolated to around the lake shore (nearby urban settlement) to simulate a low investment alternative were future resources may be limited. Results indicated that the forest will remain a C sink regardless of treatment or fire regime simulated, due to the landscape legacy of historic logging. Achievement of a net C gain required decades with intensive treatment and depended on wildfire activity: Fuel treatments were more effective in a more active fire environment, where the interface between wildfires and treatment areas increased and caused net C gain earlier than as compared to our scenarios with less wildfire activity. Fuel treatments were most effective when continuously applied and strategically placed in high ignition areas. Treatment type and re-application interval were less influential at the landscape scale, but had notable effects on species dynamics within management units. Treatments created more diverse forest conditions by shifting dominance patterns to a more mixed conifer system, with a higher proportion of fire-tolerant species. We demonstrated that a small amount of wildfire on the landscape resulted in significant changes in the C pool, and that strategically placed fuel treatments substantially reduced wildfire risk, increased fire resiliency of the forest, and is beneficial for long-term C management. Implications for landscape management included consideration for prioritization of treatment areas and creating ideal re-entry schedules that meet logistic, safety, and conservation goals. In forests with a concentrated wildland urban interface, fuel treatments may be vital for ensuring human welfare and enhancing forest integrity in a fire-prone future. Published by Elsevier B.V.", "keywords": ["0106 biological sciences", "Environmental Indicators and Impact Assessment", "Firescaping", "Wildfire risk", "13. Climate action", "11. Sustainability", "Natural Resources Management and Policy", "Carbon sequestration -- California -- Case studies", "Prescribed burning", "Forest management -- California -- Lake Tahoe basin", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2014.03.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2014.03.011", "name": "item", "description": "10.1016/j.foreco.2014.03.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2014.03.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-07-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2016.11.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:40Z", "type": "Journal Article", "created": "2016-12-18", "title": "Survival and growth as measures of shade tolerance of planted western redcedar, western hemlock and amabilis fir seedlings in hemlock-fir forests of northern Vancouver Island", "description": "We examined two measures of shade tolerance (survival and growth) of planted 1-year-old seedlings of western redcedar (Thuja plicata (Donn ex D. Don)), western hemlock (Tsuga heterophylla ([Raf.] Sarg.)) and amabilis fir (Abies amabilis ([Dougl. ex Loud] Dougl. ex Forbes)). Seedlings were planted at two different sites (forest interior: 4.5% mean above canopy photosynthetically active radiation [ACPAR], and forest edge: 41.5% mean ACPAR), in a 90-year-old, windthrow origin, unmanaged mesic western hemlock-amabilis fir stand. Seedlings were planted in 1997, and re-measured in 1998 and 2001 (after five growing seasons). To assess the effects of deer browsing on redcedar survival and growth, additional seedlings of this species were planted and protected with Vexar\u00a9 tubes. To examine for nutrient-light interactions, half of these seedlings were fertilized with N-P-K and micronutrients at planting. Western redcedar had high levels of survival after 4 years (98% in edge plots and 93% in interior plots). Redcedar seedlings in edge plots were more vigorous but were browsed more heavily than in the interior plots. At edge sites, the negative effects of the Vexar\u00a9 tubes may have been lower than their positive effects. Hemlock survival was about 50% in the stand interior but 80% in the edge plots. Amabilis fir in the interior plots had the lowest survival of the three species, with only 40% of initial seedlings surviving over the next four years, but had high survival in edge plots (95%). Height, biomass, and root collar diameter growth were significantly higher in edge plots for fir and hemlock. However, for redcedar, only biomass was significantly higher and no differences were detected for height and diameter. Our results show that shade tolerance cannot be assessed by simple measures of leaf/light relationships alone, but also requires consideration of light, nutrition, growth and browsing.", "keywords": ["Seedling survival", "0106 biological sciences", "Light-nutrient interactions", "Edge effects", "0401 agriculture", " forestry", " and fisheries", "Light tolerance", "04 agricultural and veterinary sciences", "15. Life on land", "Seedling growth", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2016.11.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2016.11.019", "name": "item", "description": "10.1016/j.foreco.2016.11.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2016.11.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-02-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2016.12.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:40Z", "type": "Journal Article", "created": "2017-01-09", "title": "Early Forest Thinning Changes Aboveground Carbon Distribution Among Pools, But Not Total Amount", "description": "Mounting concerns about global climate change have increased interest in the potential to use common forest management practices, such as forest density management with thinning, in climate change mitigation and adaptation efforts. Long-term effects of forest density management on total aboveground C are not well understood, especially for precommercial thinning (PCT) implemented very early in stand development. To assess the climate change mitigation potential of PCT, as well as tradeoffs with climate change adaptation, we examined total aboveground C stores in a 54-year-old western larch (Larix occidentalis Nutt.) precommercial thinning experiment to determine how different PCT treatments affect long-term aboveground C storage and distribution among pools. Four aboveground C pools (live overstory, live understory/mid-story, woody detritus, and forest floor) were measured and separated into C accumulated prior to initiation of the current stand (legacy C) and C accumulated by the current stand (non-legacy C). PCT had no influence on the total non-legacy aboveground C stores 54 years after treatment. Live tree C was nearly identical across densities due to much larger trees in low density treatments. Low density stands had more understory and mid-story C while unthinned plots had significantly more non-legacy woody detritus C than thinned stands. Legacy pools did not vary significantly with density, but made up a substantial proportion of aboveground C stores. We found that: (1) fifty-four years after PCT total aboveground C is similar across treatments, due primarily to the increase in mean tree C of trees grown at lower stand densities; (2) deadwood legacies from the pre-disturbance forest still play an important role in long-term C storage 62 years after current stand initiation, accounting for approximately 20\u201325% of aboveground C stores; and (3) given enough time since early thinning, there is no trade-off between managing stands to promote individual tree growth and development of understory vegetation, and maximizing stand level accumulation of aboveground C over the long term. We infer that early PCT can be used to simultaneously achieve climate change mitigation and adaptation objectives, provided treatments are implemented early in stand development before canopy closure and the onset of intense intertree competition.", "keywords": ["0106 biological sciences", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2016.12.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2016.12.018", "name": "item", "description": "10.1016/j.foreco.2016.12.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2016.12.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-04-01T00:00:00Z"}}, {"id": "20.500.11850/636573", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:26:45Z", "type": "Journal Article", "created": "2023-10-04", "title": "Root phenotypes for improved nitrogen capture", "description": "Abstract               Background               <p>Suboptimal nitrogen availability is a primary constraint for crop production in low-input agroecosystems, while nitrogen fertilization is a primary contributor to the energy, economic, and environmental costs of crop production in high-input agroecosystems. In this article we consider avenues to develop crops with improved nitrogen capture and reduced requirement for nitrogen fertilizer.</p>                            Scope               <p>Intraspecific variation for an array of root phenotypes has been associated with improved nitrogen capture in cereal crops, including architectural phenotypes that colocalize root foraging with nitrogen availability in the soil; anatomical phenotypes that reduce the metabolic costs of soil exploration, improve penetration of hard soil, and exploit the rhizosphere; subcellular phenotypes that reduce the nitrogen requirement of plant tissue; molecular phenotypes exhibiting optimized nitrate uptake kinetics; and rhizosphere phenotypes that optimize associations with the rhizosphere microbiome. For each of these topics we provide examples of root phenotypes which merit attention as potential selection targets for crop improvement. Several cross-cutting issues are addressed including the importance of soil hydrology and impedance, phenotypic plasticity, integrated phenotypes, in silico modeling, and breeding strategies using high throughput phenotyping for co-optimization of multiple phenes.</p>                            Conclusions               <p>Substantial phenotypic variation exists in crop germplasm for an array of root phenotypes that improve nitrogen capture. Although this topic merits greater research attention than it currently receives, we have adequate understanding and tools to develop crops with improved nitrogen capture. Root phenotypes are underutilized yet attractive breeding targets for the development of the nitrogen efficient crops urgently needed in global agriculture.</p>", "keywords": ["2. Zero hunger", "0106 biological sciences", "0301 basic medicine", "Plasticity", "Marschner Review", "Nitrogen", "Physiology", "Nitrogen; Root; Anatomy; Architecture; Soil; Crop breeding; Root phenotyping; Modeling; Rhizosphere; Plasticity; Physiology", "Modeling", "Root phenotyping", "15. Life on land", "01 natural sciences", "Soil", "03 medical and health sciences", "Root", "FOS: Biological sciences", "Architecture", "Rhizosphere", "Crop breeding", "Anatomy", "FOS: Civil engineering"]}, "links": [{"href": "https://doi.org/20.500.11850/636573"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "20.500.11850/636573", "name": "item", "description": "20.500.11850/636573", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/20.500.11850/636573"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-10-04T00:00:00Z"}}, {"id": "10.1016/j.foreco.2022.120396", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:16:40Z", "type": "Journal Article", "created": "2022-07-04", "title": "Tree species identity is the predominant modulator of the effects of soil fauna on leaf litter decomposition", "description": "Open AccessLa faune du sol est l'un des principaux moteurs de la d\u00e9composition de la liti\u00e8re \u00e0 l'\u00e9chelle locale et mondiale, mais le r\u00f4le des esp\u00e8ces d'arbres dans la m\u00e9diation des effets de la faune du sol sur la d\u00e9composition de la liti\u00e8re reste insaisissable. Nous avons men\u00e9 une exp\u00e9rience sur le terrain en utilisant des sacs de liti\u00e8re avec trois tailles de maille diff\u00e9rentes qui ont permis l'acc\u00e8s \u00e0 la microfaune (0,1 mm), \u00e0 la micro et m\u00e9sofaune (2 mm) et \u00e0 la faune totale du sol (5 mm) pour \u00e9valuer la d\u00e9composition de la liti\u00e8re foliaire de deux esp\u00e8ces d'arbres associ\u00e9es \u00e0 des champignons mycorhiziens arbusculaires (MA) et de trois esp\u00e8ces d'arbres associ\u00e9es \u00e0 des champignons ectomycorhiziens (ECM) dans six sites de jardins communs danois. Nous avons \u00e9galement \u00e9valu\u00e9 comment les diff\u00e9rences dans la qualit\u00e9 initiale de la liti\u00e8re, les propri\u00e9t\u00e9s du sol et la composition de la communaut\u00e9 microbienne parmi les esp\u00e8ces d'arbres peuvent affecter la d\u00e9composition de la liti\u00e8re ainsi que les effets de la faune du sol sur la d\u00e9composition de la liti\u00e8re. Les r\u00e9sultats ont montr\u00e9 que (1) la perte de masse de la liti\u00e8re variait consid\u00e9rablement selon la taille des mailles et les esp\u00e8ces d'arbres, avec des taux de d\u00e9composition de la liti\u00e8re (k) allant de 0,273 \u00e0 3,482\u00a0; (2) l'acc\u00e8s \u00e0 la m\u00e9sofaune augmentait significativement la liti\u00e8re k de 0,658 pour la MA et de 0,396 pour les esp\u00e8ces d'arbres ECM sans acc\u00e8s \u00e0 la faune du sol, respectivement de 255 et 92%, tandis que l'acc\u00e8s \u00e0 la fois \u00e0 la m\u00e9so- et \u00e0 la macrofaune augmentait k de 265 et 108% pour les arbres AM et ECM, respectivement\u00a0; (3) l'identit\u00e9 des esp\u00e8ces d'arbres, l'association mycorhizienne, la qualit\u00e9 initiale de la liti\u00e8re, les propri\u00e9t\u00e9s du sol, la composition des communaut\u00e9s microbiennes et la biomasse de la faune du sol ambiant \u00e9taient tous des facteurs influen\u00e7ant significativement la d\u00e9composition de la liti\u00e8re, mais l'identit\u00e9 des esp\u00e8ces d'arbres \u00e9tait le facteur dominant ind\u00e9pendamment de la taille des mailles des sacs de liti\u00e8re\u00a0; et (4) les effets de la m\u00e9sofaune sur la d\u00e9composition de la liti\u00e8re \u00e9taient principalement contr\u00f4l\u00e9s par l'identit\u00e9 des esp\u00e8ces d'arbres, la concentration initiale en Mg de la liti\u00e8re et le rapport lignine\u00a0:N, tandis que le petit impact suppl\u00e9mentaire de l'acc\u00e8s \u00e0 la macrofaune n'\u00e9tait pas bien expliqu\u00e9 par aucun des facteurs \u00e9valu\u00e9s. Dans l'ensemble, nos r\u00e9sultats sugg\u00e8rent que les esp\u00e8ces d'arbres affectent la d\u00e9composition de la liti\u00e8re via une stimulation diff\u00e9rente du fonctionnement de la faune du sol, et que les esp\u00e8ces d'arbres associ\u00e9es \u00e0 la MA et \u00e0 la mec diff\u00e8rent dans le degr\u00e9 auquel la faune du sol stimule la d\u00e9composition de la liti\u00e8re. Cependant, le mod\u00e8le n'\u00e9tait pas enti\u00e8rement coh\u00e9rent car les taux de d\u00e9composition de la liti\u00e8re pour la chaux associ\u00e9e \u00e0 la mec \u00e9taient stimul\u00e9s dans la m\u00eame mesure que les taux pour les esp\u00e8ces d'arbres associ\u00e9es \u00e0 la MA, le fr\u00eane et l'\u00e9rable. Dans l'ensemble, nos r\u00e9sultats sugg\u00e8rent que les communaut\u00e9s de m\u00e9so- et de macrofaune du sol peuvent am\u00e9liorer les effets des esp\u00e8ces d'arbres sur la d\u00e9composition de la liti\u00e8re ainsi que l'incorporation de la liti\u00e8re C dans le sol min\u00e9ral.", "keywords": ["Biomass (ecology)", "0106 biological sciences", "Litter quality", "Microfauna", "Plant Science", "Soil mesofauna", "01 natural sciences", "Plant litter", "Soil fauna", "Agricultural and Biological Sciences", "Biodiversity Conservation and Ecosystem Management", "Soil biology", "Microbial community", "Mycorrhizal Fungi and Plant Interactions", "Litter", "Soil water", "Wood Decomposition", "Saproxylic Insect Ecology and Forest Management", "Plant Interactions", "Biology", "Ecosystem", "Nature and Landscape Conservation", "Ecology", "Soil property", "Life Sciences", "04 agricultural and veterinary sciences", "15. Life on land", "Fauna", "Insect Science", "FOS: Biological sciences", "Environmental Science", "Physical Sciences", "Common garden", "0401 agriculture", " forestry", " and fisheries", "Litterbag mesh size"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2022.120396"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2022.120396", "name": "item", "description": "10.1016/j.foreco.2022.120396", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2022.120396"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-09-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2005.06.023", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:18Z", "type": "Journal Article", "created": "2005-07-28", "title": "Effects Of Elevated Co2 Concentration On Rhizodeposition From Lolium Perenne Grown On Soil Exposed To 9 Years Of Co2 Enrichment", "description": "Abstract   The effects of enriched CO 2  atmosphere on partitioning of recently assimilated carbon were investigated in a plant-soil-microorganism system in which  Lolium perenne  seedlings were planted into cores inserted into the resident soil within a sward that had been treated with elevated CO 2  for 9 consecutive years, under two N fertilisation levels (Swiss FACE experiment). The planted cores were excavated from the ambient (35\u00a0Pa pCO 2 ) and enriched (60\u00a0Pa pCO 2 ) rings at two dates, in spring and autumn, during the growing season. The cores were brought back to the laboratory for  14 C labelling of shoots in order to trace the transfer of recently assimilated C both within the plant and to the soil and microbial biomass. At the spring sampling, high N supply stimulated shoot and total dry matter production. Consistently, high N enhanced the allocation of recently fixed C to shoots, and reduced it to belowground compartments. Elevated CO 2  had no consequences for DM or the pattern of C allocation. At the autumn sampling, at high N plot, yield of  L. perenne  was stimulated by elevated CO 2 . Consistently,  14 C was preferentially allocated aboveground and, consequently belowground recent C allocation was depressed and rhizodeposition reduced. At both experimental periods, total soil C content was similar in all treatments, providing no evidence for soil carbon sequestration in the Swiss Free Air CO 2  Enrichment experiment (FACE) after 9 years of enrichment. Recently assimilated C and soil C were mineralised faster in soils from enriched rings, suggesting a CO 2 -induced shift in the microbial biomass characteristics (structure, diversity, activity) and/or in the quality of the root-released organic compounds.", "keywords": ["580", "RHIZODEPOSITION", "0106 biological sciences", "2. Zero hunger", "RAY GRASS ANGLAIS", "MINERALISATION", "RHIZOSPHERE RESPIRATION", "04 agricultural and veterinary sciences", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "15. Life on land", "01 natural sciences", "MICROBIAL BIOMASSE", "CARBON SEQUESTRATION", "0401 agriculture", " forestry", " and fisheries", "ELEVATED CO2", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "NITROGEN FERTILISATION"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2005.06.023"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2005.06.023", "name": "item", "description": "10.1016/j.soilbio.2005.06.023", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2005.06.023"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-04-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2010.02.020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:22Z", "type": "Journal Article", "created": "2010-03-12", "title": "Carbon Dioxide Emissions Of Soils Under Pure And Mixed Stands Of Beech And Spruce, Affected By Decomposing Foliage Litter Mixtures", "description": "Soil respiration is the largest terrestrial source of CO2 to the atmosphere. In forests, roughly half of the soil respiration is autotrophic (mainly root respiration) while the remainder is heterotrophic, originating from decomposition of soil organic matter. Decomposition is an important process for cycling of nutrients in forest ecosystems. Hence, tree species induced changes may have a great impact on atmospheric CO2 concentrations. Since studies on the combined effects of beech\u2013spruce mixtures are very rare, we firstly measured CO2 emission rates in three adjacent stands of pure spruce (Picea abies), mixed spruce\u2013beech and pure beech (Fagus sylvatica) on three base-rich sites (Flysch) and three base-poor sites (Molasse; yielding a total of 18 stands) during two summer periods using the closed chamber method. CO2 emissions were higher on the well-aerated sandy soils on Molasse than on the clayey soils on Flysch, characterized by frequent water logging. Mean CO2 effluxes increased from spruce (41) over the mixed (55) to the beech (59) stands on Molasse, while tree species effects were lower on Flysch (30\u201335, mixed > beech = spruce; all data in mg CO2\u2013C m\u22122 h\u22121). Secondly, we studied decomposition after fourfold litter manipulations at the 6 mixed species stands: the Oi \u2013 and Oe horizons were removed and replaced by additions of beech \u2013, spruce \u2013 and mixed litter of the adjacent pure stands of known chemical quality and one zero addition (blank) in open rings (20 cm inner diameter), which were covered with meshes to exclude fresh litter fall. Mass loss within two years amounted to 61\u201368% on Flysch and 36\u201344% on Molasse, indicating non-additive mixed species effects (mixed litter showed highest mass loss). However, base cation release showed a linear response, increasing from the spruce \u2013 over the mixed \u2013 to the beech litter. The differences in N release (immobilization) resulted in a characteristic converging trend in C/N ratios for all litter compositions on both bedrocks during decomposition. In the summers 2006 and 2007 we measured CO2 efflux from these manipulated areas (a closed chamber fits exactly over such a ring) as field indicator of the microbial activity. Net fluxes (subtracting the so-called blank values) are considered an indicator of litter induced changes only and increased on both bedrocks from the spruce \u2013 over the mixed \u2013 to the beech litter. According to these measurements, decomposing litter contributed between 22\u201332% (Flysch) and 11\u201328% (Molasse) to total soil respiration, strengthening its role within the global carbon cycle.", "keywords": ["DYNAMICS", "0106 biological sciences", "FLUXES", "Fagus sylvatica", "NUTRIENT RELEASE", "BROADLEAF", "Nutrient cycling", "01 natural sciences", "Mixed species effects", "507015 Regionalforschung", "FORESTS", "FAGUS-SYLVATICA", "CO(2) efflux", "SDG 15 \u2013 Leben an Land", "SDG 15 - Life on Land", "Picea abies", "Litter decomposition", "NORWAY SPRUCE", "04 agricultural and veterinary sciences", "15. Life on land", "PICEA-ABIES", "RESPIRATION", "13. Climate action", "507015 Regional research", "0401 agriculture", " forestry", " and fisheries", "LEAF-LITTER"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2010.02.020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2010.02.020", "name": "item", "description": "10.1016/j.soilbio.2010.02.020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2010.02.020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2012.04.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-27T16:17:24Z", "type": "Journal Article", "created": "2012-04-23", "title": "Biochar But Not Earthworms Enhances Rice Growth Through Increased Protein Turnover", "description": "The aim of this work was to compare the effects of biochar and earthworms on rice growth and to investigate the possible interactions between both. In addition to classic macroscopic variables we also monitored some leaf-level cellular processes involved in protein turnover. Both biochar and earthworms significantly increased shoot biomass production. However, biochar had a higher effect on the number of leaves (\u00fe87%) and earthworms on leaf area (\u00fe89%). Biochar also significantly increased the leaf turnover. At the cellular level, biochar but not earthworms enhanced protein catabolism by an increase in leaf proteolytic activities. This could be related to the increased expression of three of the six genes tested related to protein catabolism, one serine protease gene OsSP2 (\u00fe24%), one aspartic acid protease gene, Oryzasin (\u00fe162%) and one cysteine protease gene OsCatB (\u00fe257%). Furthermore, biochar also enhanced the expression level of two genes linked to protein anabolism, coding for the small and large subunits of rubisco (\u00fe33% and \u00fe30%, for rbcS and rbcL, respectively), the most abundant protein in leaves. In conclusion, our data gives evidence that biochar increased rice biomass production through increased leaf protein turnover (both catabolism and anabolism) whereas earthworms also increased rice biomass production but not through changes in the rate of protein turnover. We hypothesize that earthworms increase nitrogen uptake at a low cost for the plant through a simultaneous increase in mineralization rate and root biomass, probably through the release in the soil of plant growth factors. This could allow plants to accumulate more biomass without an increase in nitrogen metabolism at the leaf level, and without having to support the consecutive energy cost that must bear plants in the biochar treatment. 2012 Elsevier Ltd. All rights reserved.", "keywords": ["0106 biological sciences", "0301 basic medicine", "earthworms", "FAUNE DU SOL", "7. Clean energy", "01 natural sciences", "03 medical and health sciences", "AZOTE", "PROTEINE", "CROISSANCE", "ETUDE COMPARATIVE", "lombriz de tierra", "2. Zero hunger", "BIOMASSE", "BIOCHAR", "biomass", "carbon", "microbiology", "MACROFAUNE", "CHARBON DE BOIS", "carbono", "RIZICULTURE", "biomasa", "oryza sativa", "METABOLISME", "FERTILISATION DU SOL", "carb\u00f3n vegetal", "LOMBRIC", "FEUILLE", "charcoal"], "contacts": [{"organization": "Kam-Rigne Laossi, Juan Andr\u00e9s Cardoso, Patrick Lavelle, Patrick Lavelle, Diana Cristina Noguera, Diana Cristina Noguera, Diana Cristina Noguera, M.H. Cruz de Carvalho, S\u00e9bastien Barot,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2012.04.004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2012.04.004", "name": "item", "description": "10.1016/j.soilbio.2012.04.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2012.04.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-09-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Biological&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Biological&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Biological&", "hreflang": "en-US"}, {"rel": "next", "type": "application/geo+json", "title": "items (next)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=+Biological&offset=50", "hreflang": "en-US"}], "numberMatched": 3288, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-07-28T02:05:58.193997Z"}