{"type": "FeatureCollection", "features": [{"id": "10.1016/j.foreco.2003.11.014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:27Z", "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.2010.07.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:31Z", "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": "2026-04-13T16:16:40Z", "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": "10.1016/j.jembe.2006.11.005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:50Z", "type": "Journal Article", "created": "2007-02-02", "title": "Effects Of Temperature And Nitrate On Phosphomonoesterase Activities Between Carbon Source And Sink Tissues In Zostera Marina L.", "description": "Inorganic phosphorus (P;) is important in the regulation of many carbon and nitrogen metabolic processes of plants. In this study, we examined alterations of phosphomonoesterase activity (PA; both alkaline and acid) in a submersed marine angiosperm, Zostera marina, grown in P i non-limiting conditions under elevated temperature and/or nitrate enrichment. Control plants (ambient water-column NO 3 <2.5 \u03bcM, with weekly mean water temperatures between 26.5-27.0 \u00b0C based on a 20-yr data set in a local embayment) were compared to treated plants that were exposed to increased water-column nitrate (8 \u03bcM NO 3 above ambient, pulsed daily at 0900 h), and/or increased temperature (ca. 3 \u00b0C above weekly means) over eight weeks in late summer-fall. Under both nitrate regimes, increased temperature resulted in periodic increased leaf and root-rhizome tissue carbon content, and increased acid and alkaline PA activities (AcPAs and AlPAs, respectively). There was a positive correlation between A1PA and AcPA activities and sucrose synthase activities in belowground structures, and a negative correlation between A1PA activities and sucrose concentrations. There were also periodic changes in PA partitioning between carbon source and sink tissues. In high-temperature and high-nitrate treatments, AcPAs significantly increased in leaves relative to activities in root-rhizome tissues (up to 12-fold higher in aboveground than belowground tissues in as little as 3 weeks after initiation of treatments). These responses were not observed in control plants, which maintained comparable AcPA activities in above- and belowground tissues. In addition, A1PA activity was significantly higher in leaf than in root-rhizome tissues of plants in high-temperature (weeks 3 and 6) and high temperature combined with high nitrate treatments (week 8), relative to A1PA activities in control plants. The observed changes in PAs were not related to P, growth limitation, and may allow Z. marina to alter its carbon metabolism during periods of increased carbon demand/mobilization. This response would make it possible for Z. marina to meet short-term P requirements to maximize carbon production/allocation. Such a mechanism could help to explain the variability in PA activities that has been observed for many plant species during periods when environmental P i exceeds requirements for optimal growth.", "keywords": ["0106 biological sciences", "01 natural sciences", "6. Clean water"], "contacts": [{"organization": "JoAnn M. Burkholder, Brant W. Touchette,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.jembe.2006.11.005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Experimental%20Marine%20Biology%20and%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jembe.2006.11.005", "name": "item", "description": "10.1016/j.jembe.2006.11.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jembe.2006.11.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-04-01T00:00:00Z"}}, {"id": "10.1023/a:1021366911279", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:17:58Z", "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": "10.1093/jpe/rtw066", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:18:58Z", "type": "Journal Article", "created": "2016-06-29", "title": "Effects Of Soil Warming History On The Performances Of Congeneric Temperate And Boreal Herbaceous Plant Species And Their Associations With Soil Biota", "description": "Aims Climate warming raises the probability of range expansions of warm-adapted temperate species into areas currently dominated by cold-adapted boreal species. Warming-induced plant range expansions could partly depend on how warming modifies relationships with soil biota that promote plant growth, such as by mineralizing nutrients. Here, we grew two pairs of congeneric herbaceous plants species together in soil with a 5-year warming history (ambient, +1.7\u00b0C, +3.4\u00b0C) and related their performances to plant-beneficial soil biota. Methods Each plant pair belonged to either the mid-latitude temperate climate or the higher latitude southern boreal climate. Warmed soils were extracted from a chamberless heating experiment at two field sites in the temperate-boreal ecotone of North America. To isolate potential effects of different soil warming histories, air temperature for the greenhouse experiment was identical across soils. We hypothesized that soil with a 5-year warming history in the field would enhance the performance of temperate plant species more than boreal plant species and expected improved plant performances to have positive associations with plant growth-promoting soil biota (microbial-feeding nematodes and arbuscular mycorrhizal fungi). Important Findings Our main hypothesis was partly confirmed as only one temperate species performed better in soil with warming history than in soil with history of ambient temperature. Further, this effect was restricted to the site with higher soil water content in the growing season of the sampling year (prior to soil collection). One of the boreal species performed consistently worse in previously warmed soil, whereas the other species showed neutral responses to soil warming history. We found a positive correlation between the density of microbial-feeding nematodes and the performance of one of the temperate species in previously wetter soils, but this correlation was negative at the site with previously drier soil. We found no significant correlations between the ...", "keywords": ["Aster cordifolius", "0106 biological sciences", "ecotone", "seedling emergence", "XXXXXX - Unknown", "ecotones", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "seeds", "biotic communities", "01 natural sciences", "soil biota", "range shift"]}, "links": [{"href": "https://doi.org/10.1093/jpe/rtw066"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Plant%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1093/jpe/rtw066", "name": "item", "description": "10.1093/jpe/rtw066", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1093/jpe/rtw066"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-06-28T00:00:00Z"}}, {"id": "10.1111/gcb.12819", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:19:21Z", "type": "Journal Article", "created": "2014-12-05", "title": "Soil Warming And Co2 Enrichment Induce Biomass Shifts In Alpine Tree Line Vegetation", "description": "Abstract

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 <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.

", "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": "2026-04-13T16:19:26Z", "type": "Journal Article", "created": "2015-02-19", "title": "Bioenergy Harvest, Climate Change, And Forest Carbon In The Oregon Coast Range", "description": "Abstract

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.

", "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": "2026-04-13T16:19:47Z", "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": "

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. 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.

", "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": "2026-04-13T16:19:58Z", "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": "

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.

", "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": "2026-04-13T16:20:00Z", "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": "

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.

", "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": "10.1894/mh-34.1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:20:48Z", "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": "10.2307/2425191", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:21:26Z", "type": "Journal Article", "created": "2006-04-24", "title": "Nutrient Limitations To Plant-Growth In A California Serpentine Grassland", "description": "Nitrogen and phosphorus were identified as nutrients limiting the growth of plants in an herbaceous community on serpentine soil. Potassium, sulfur and calcium additions had little or no effect. Nutrients were added, alone and in combination, to plots in the field and to greenhouse pots of serpentine soil containing the annual grasses, Bromus mollis and Vulpia microstachys. The absence of any effect due to added calcium indicates that calcium deficiency is not a universal explanation of the low primary production on serpentine soils. INTRODUCTION Wherever they are found, serpentine soils support a vegetation that differs from that on surrounding nonserpentine soils in productivity, floristic composition and often physiognomy. It is now clear that a considerable degree of variability in physical and chemical properties is found among soils classified as serpentine. Thus the phenomenon cannot be ascribed to a single cause but rather a family of causes that vary in importance from site to site. Most notable among these are low levels of the major nutrients, nitrogen, phosphorus and potassium, low levels of calcium combined with high magnesium, and high concentrations of the potentially toxic elements, nickel, chromium and cobalt (Proctor and Woodell, 1975). Serpentine outcrops are common in the California Coastal Mountains as part of the Franciscan formation (Page, 1966). Among these is an outcrop supporting an herbaceous plant community contained within the Jasper Ridge Biological Preserve. The low productivity and floristic uniqueness of this grassland has been well-documented by McNaughton (1968). The consequences of its low productivity for foliage canopy development and potential light competition were studied by Turitzin (1978). No one, however, has reported on the causes of its low productivity. The present study was undertaken to analyze nutrient limitations to plant growth on this serpentine soil. MATERIALS AND METHODS The Jasper Ridge Biological Preserve occupies half of a low-lying ridge on the eastern side of the Santa Cruz Mountains in San Mateo Co., Calif. The crest of the ridge, which reaches an elevation of 189 m, supports an extensive area of annual grassland. A serpentine outcrop, obliquely bisecting the ridge, is occupied by a mixture of annuals and herbaceous perennials. The climate is of the Mediterranean type with warm, dry summers and cool, wet winters. Plants are active from October until May. Nutrient limitations to productivity in the field were studied on experimental plots arranged in a randomized complete blocks design (Sokal and Rohlf, 1969). Treatments were applied to nine 0.25m2 square plots arranged in 1 x 2.5 m blocks that included an untreated control plot. Blocks were replicated six times. Nutrient supplements were applied on 12 January and 12 March 1975. On each occasion nitrogen, phosphorus or potassium, or various combinations were added as solutions of reagent grade NH4NO3 (28.6g m2),. NaH2PO4 * H20 (19.4g m-2) and K2S04 (18.5g m2). Calcium applied as powdered agricultural grade gypsum (calcium sulfate, 1OOg m-2) was added in January only. Aboveground biomass contained within a 0.09 m2 quadrat was harvested from the center of each plot during late April. 'Present address: University Honors Program and School of Life and Health Sciences, University of Delaware, Newark 1971 1.", "keywords": ["0106 biological sciences", "2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences"], "contacts": [{"organization": "Stephen N. Turitzin", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.2307/2425191"}, {"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": "10.2307/2425191", "name": "item", "description": "10.2307/2425191", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2307/2425191"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1982-01-01T00:00:00Z"}}, {"id": "10.3390/rs13061133", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:22:04Z", "type": "Journal Article", "created": "2021-03-16", "title": "Assessing Irrigation Water Use with Remote Sensing-Based Soil Water Balance at an Irrigation Scheme Level in a Semi-Arid Region of Morocco", "description": "

This study aims to evaluate a remote sensing-based approach to allow estimation of the temporal and spatial distribution of crop evapotranspiration (ET) and irrigation water requirements over irrigated areas in semi-arid regions. The method is based on the daily step FAO-56 Soil Water Balance model combined with a time series of basal crop coefficients and the fractional vegetation cover derived from high-resolution satellite Normalized Difference Vegetation Index (NDVI) imagery. The model was first calibrated and validated at plot scale using ET measured by eddy-covariance systems over wheat fields and olive orchards representing the main crops grown in the study area of the Haouz plain (central Morocco). The results showed that the model provided good estimates of ET for wheat and olive trees with a root mean square error (RMSE) of about 0.56 and 0.54 mm/day respectively. The model was then used to compare remotely sensed estimates of irrigation requirements (RS-IWR) and irrigation water supplied (WS) at plot scale over an irrigation district in the Haouz plain through three growing seasons. The comparison indicated a large spatio-temporal variability in irrigation water demands and supplies; the median values of WS and RS-IWR were 130 (175), 117 (175) and 118 (112) mm respectively in the 2002\u20132003, 2005\u20132006 and 2008\u20132009 seasons. This could be attributed to inadequate irrigation supply and/or to farmers\u2019 socio-economic considerations and management practices. The findings demonstrate the potential for irrigation managers to use remote sensing-based models to monitor irrigation water usage for efficient and sustainable use of water resources.

", "keywords": ["0106 biological sciences", "2. Zero hunger", "FAO-56 soil water balance", "550", "[SDE.MCG]Environmental Sciences/Global Changes", "Science", "water", "Q", "evapotranspiration", "balance", "15. Life on land", "01 natural sciences", "630", "irrigation", "6. Clean water", "[SDE.MCG] Environmental Sciences/Global Changes", "remote sensing", "evapotranspiration; irrigation; water; remote sensing; FAO-56 soil water balance; NDVI time series", "FAO-56 soil water", "NDVI time series"]}, "links": [{"href": "http://www.mdpi.com/2072-4292/13/6/1133/pdf"}, {"href": "https://www.mdpi.com/2072-4292/13/6/1133/pdf"}, {"href": "https://doi.org/10.3390/rs13061133"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Remote%20Sensing", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/rs13061133", "name": "item", "description": "10.3390/rs13061133", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/rs13061133"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-03-16T00:00:00Z"}}, {"id": "10.4141/p02-188", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:22:22Z", "type": "Journal Article", "created": "2011-04-24", "description": "

In the Brown soil zone of western Canada summerfallowing (F) is traditionally used to reduce the water deficit associated with cereal production, but frequent use of this practice results in soil degradation and reduces the N-supplying capacity of soils. Some scientists suggest that an annual legume green manure crop (LGM) could be used as a partial-fallow replacement to protect the soil against erosion and increase its N fertility, particularly when combined with a snow-trapping technique to replenish soil water used by the legume. We assessed this possibility by comparing yields, N economy, water use efficiency, and economic returns for hard red spring wheat (W) (Triticum aestivum L.) grown in rotation with Indianhead black lentil (Lens culinaris Medikus) green manure (i.e., LGM-W-W) vs. that obtained in a traditional F-W-W system. Further, we assessed whether a change in manage ment of the LGM crop (i.e., moving to earlier seeding and earlier turn-down) was advantageous to the overall performance of this practice. The study was conducted over 12 yr (1988\uffe2\uff80\uff9399) on a medium-textured Orthic Brown Chernozem at Swift Current, Saskatchewan. Wheat stubble was left tall to trap snow, tillage was kept to a minimum, and the wheat was fertilized based on NO3 soil tests. When we examined results after 6 yr, we concluded that by waiting until full bloom to turn down the legume (usually late July or early August) so as to maximize N2 fixation, soil water was being depleted to the detriment of yields of the following wheat crop. The change in management of the LGM crop since 1993 resulted in wheat yields following LGM equaling those after fallow (due to improved water use efficiency), a gradual and significant increase over time in grain protein and in N yield of aboveground plant biomass of wheat in the LGM-W-W compared to the F-W-W system, plus a gradual decrease in fertilizer N requirements of wheat in the LGM system accompanying an improvement in the N supplying power of the soil. These savings in N fertilizer, together with savings in tillage and herbicide costs for weed control on partial-fallow vs. conventional-fallow areas, and higher revenues from the enhanced grain protein, more than offset the added costs for seed and management of the LGM crop. Thus, our results imply that, if producers seed the LGM in April and turn it down in early July, an annual LGM-cereal rotation is a viable option in the semiarid Canadian prairies; however, one negative consequence of adopting this management strategy is the possibility of enhancing NO3 leaching. Key words: Nitrogen yields, grain protein, green fallow, summerfallow substitute, economic returns, NO3 leaching

", "keywords": ["0106 biological sciences", "2. Zero hunger", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water"], "contacts": [{"organization": "F. Selles, Yantai Gan, Robert P. Zentner, V. O. Biederbeck, Paul G. Jefferson, Reynald Lemke, C. A. Campbell,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.4141/p02-188"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Canadian%20Journal%20of%20Plant%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.4141/p02-188", "name": "item", "description": "10.4141/p02-188", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.4141/p02-188"}, {"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": "10.5061/dryad.4xgxd258c", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:22:29Z", "type": "Dataset", "title": "Prosopis invasion and management scenarios for Baringo County, Kenya", "description": "unspecifiedImpacts of Prosopis invasion and grassland degradation and restoration on soil organic carbon To understand the impacts of Prosopis invasion, land degradation, and grassland restoration on SOC, LULC maps for the years 1995, 2002, 2009, and 2016 were analysed, along with a detailed map of Prosopis fractional cover in 2016. The LULC maps were generated earlier for another study (Mbaabu et al., 2019). For the present analysis, the relevant original LULC classes were regrouped into the following five categories: (1) degraded grassland, (2) pristine grassland, (3) restored grassland, (4) sparse Prosopis (Ps) (<50% coverage), and (5) dense Prosopis (Pd) (>50% coverage). A number of assumptions were made, based on the study area\u2019s LULC and land degradation history. Thus, areas originally classified as \u201cbare\u201d were considered to be degraded grassland. Areas classified as \u201cgrassland\u201d were considered pristine grassland if they had been \u201cgrassland\u201d since 1995. Restored grassland comprises areas that had been classified as \u201cgrassland\u201d in the LULC maps of 2002, 2009, or 2016 but had belonged to a different LULC class before that. All other, less relevant LULC classes were grouped and called \u201cOther\u201d. Then the total area for each LULC type in each of the regrouped LULC maps was calculated. Modelling and evaluation of spatially explicit management scenarios Uniform management of all invaded areas is too labour-intense and expensive to be realistic. Moreover, local people prefer prioritizing certain areas over others. For the calculations, areas that had been covered with native flora (grassland, native mixed vegetation consisting of trees, bushes, and forests) before they were invaded by Prosopis, as well as areas invaded more recently over those invaded earlier were prioritized. This assumed that restoration of original plant and tree species is most likely to succeed in areas where stumps or seeds of native trees or grasses are still present. Invaded areas that had formerly been categorized as grassland, native bush- or shrubland, or natural forests were derived from the LULC categorizations for 2009, 2002, and 1995 (Mbaabu et al., 2019). If the available budget per sublocation exceeded the cost of treating these areas, it was assumed that further invaded areas (Ps or Pd not previously covered by grassland, native bush- or shrubland, or natural forest) would be treated until the entire budget was spent, prioritizing larger over smaller patches. Clearing Prosopis from the islands in Lake Baringo that belong to Meisori sublocation was not considered a priority. This process resulted in many differently sized fragments of invaded priority areas to be cleared. The fragments to be cleared were selected based on their size, starting with the largest. Three management scenarios were defined: (1) The entire budget is used to treat Pd; (2) the entire budget is used to treat Ps; and (3) half of the budget is used to treat Pd and the other half to treat Ps. The calculations for the nine sublocations are provided in Appendix S2. Once the available budget and the respective scenarios for each of the nine sublocations were calculated, the three Prosopis management scenarios for four selected sublocations were mapped.", "keywords": ["2. Zero hunger", "13. Climate action", "FOS: Biological sciences", "11. Sustainability", "15. Life on land"], "contacts": [{"organization": "Eschen, Ren\u00e9, Bekele, Ketema, Rima Mbaabu, Purity, Kilawe, Charles, Eckert, Sandra,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.4xgxd258c"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.4xgxd258c", "name": "item", "description": "10.5061/dryad.4xgxd258c", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.4xgxd258c"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-08-19T00:00:00Z"}}, {"id": "10.5061/dryad.wh70rxwww", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:22:39Z", "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": "10.5194/bg-7-315-2010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:22:47Z", "type": "Journal Article", "created": "2010-04-29", "description": "

Abstract. Global climate change in the real world always exhibits simultaneous changes in multiple factors. Prediction of ecosystem responses to multi-factor global changes in a future world strongly relies on our understanding of their interactions. However, it is still unclear how nitrogen (N) deposition and elevated atmospheric carbon dioxide concentration [CO2] would interactively influence forest floor soil respiration in subtropical China. We assessed the main and interactive effects of elevated [CO2] and N addition on soil respiration by growing tree seedlings in ten large open-top chambers under CO2 (ambient CO2 and 700 \uffce\uffbcmol mol\uffe2\uff88\uff921) and nitrogen (ambient and 100 kg N ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921) treatments. Soil respiration, soil temperature and soil moisture were measured for 30 months, as well as above-ground biomass, root biomass and soil organic matter (SOM). Results showed that soil respiration displayed strong seasonal patterns with higher values observed in the wet season (April\uffe2\uff80\uff93September) and lower values in the dry season (October\uffe2\uff80\uff93March) in all treatments. Significant exponential relationships between soil respiration rates and soil temperatures, as well as significant linear relationships between soil respiration rates and soil moistures (below 15%) were found. Both CO2 and N treatments significantly affected soil respiration, and there was significant interaction between elevated [CO2] and N addition (p<0.001, p=0.003, and p=0.006, respectively). We also observed that the stimulatory effect of individual elevated [CO2] (about 29% increased) was maintained throughout the experimental period. The positive effect of N addition was found only in 2006 (8.17% increased), and then had been weakened over time. Their combined effect on soil respiration (about 50% increased) was greater than the impact of either one alone. Mean value of annual soil respiration was 5.32 \uffc2\uffb1 0.08, 4.54 \uffc2\uffb1 0.10, 3.56 \uffc2\uffb1 0.03 and 3.53 \uffc2\uffb1 0.03 kg CO2 m\uffe2\uff88\uff922 yr\uffe2\uff88\uff921 in the chambers exposed to elevated [CO2] and high N deposition (CN), elevated [CO2] and ambient N deposition (CC), ambient [CO2] and high N deposition (NN), and ambient [CO2] and ambient N deposition (CK as a control), respectively. Greater above-ground biomass and root biomass was obtained in the CN, CC and NN treatments, and higher soil organic matter was observed only in the CN treatment. In conclusion, the combined effect of elevated [CO2] and N addition on soil respiration was apparent interaction. They should be evaluated in combination in subtropical forest ecosystems in China where the atmospheric CO2 and N deposition have been increasing simultaneously and remarkably.

", "keywords": ["0106 biological sciences", "2. Zero hunger", "QE1-996.5", "Ecology", "Geology", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "Life", "13. Climate action", "QH501-531", "0401 agriculture", " forestry", " and fisheries", "QH540-549.5", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Qi Deng, Shuangquan Liu, Honglang Duan, Guoyi Zhou, Juxiu Liu, Dainan Zhang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5194/bg-7-315-2010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeosciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/bg-7-315-2010", "name": "item", "description": "10.5194/bg-7-315-2010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-7-315-2010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-08-24T00:00:00Z"}}, {"id": "1805/19605", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:26:31Z", "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": "2313710526", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:27:06Z", "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": "

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.90% of the total grain Se in treatments fertilized with SeO4(2-)-enriched urea granules. The results of this study clearly show that of the fertilizer strategies tested biofortification of Se in rice grains can best be achieved in lowland rice by broadcast application of SeO4(2-)-enriched urea granules to floodwater at heading stage.", "keywords": ["0106 biological sciences", "selenate", "Selenic Acid", "Plant Roots", "01 natural sciences", "Selenate", "biofortification", "Selenium", "Soil", "Fertilizer", "Urea", "selenium", "Fertilizers", "Selenomethionine", "Se enriched urea", "580", "2. Zero hunger", "rice", "Water", "Oryza", "04 agricultural and veterinary sciences", "15. Life on land", "fertilizer", "6. Clean water", "Plant Leaves", "Se-enriched urea", "Selenite", "0401 agriculture", " forestry", " and fisheries", "Rice", "selenite", "Biofortification"]}, "links": [{"href": "https://doi.org/10.1021/jf3005788"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Agricultural%20and%20Food%20Chemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/jf3005788", "name": "item", "description": "10.1021/jf3005788", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/jf3005788"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-06-05T00:00:00Z"}}, {"id": "10.1016/j.apsoil.2016.05.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:15:53Z", "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/s13165-020-00330-2", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:15:25Z", "type": "Journal Article", "created": "2020-10-07", "title": "Current use of copper, mineral oils and sulphur for plant protection in organic horticultural crops across 10 European countries", "description": "The use of several plant protection inputs of mineral origin, such as copper, sulphur or mineral oils is seen as contentious by many consumers and stakeholders within the organic sector. Although the use of these inputs is legal in organic systems and also applied in non-organic agriculture, their use by organic growers raises questions for organic practice, which aspires to be free from toxic, non-renewable chemicals. Data on the current use of permitted plant protection inputs is currently scarce, especially in horticulture where chemical inputs deserve special attention since horticultural products are often readily edible. A mapping of the use of copper, sulphur and mineral oils was conducted by collecting expert knowledge across 10 European countries during May\u2013October 2018, i.e. before the limitation of copper use to 4\u00a0kg\u00a0ha\u22121\u00a0year\u22121 from February 1, 2019. Results show that copper is widely used by Mediterranean organic growers in citrus, olive, tomato and potato production. The annual limit of 6\u00a0kg\u00a0ha\u22121\u00a0year\u22121 was not always respected. We also found that tomato producers apply high amounts of copper in winter crops in greenhouses. Mineral oils are applied to control scales, mites and whiteflies. Sulphur is also commonly used by organic vegetable growers, especially in greenhouses. We conclude that the high usage found in various different crops (especially Mediterranean crops) confirms the need for researching alternatives.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "0106 biological sciences", "0301 basic medicine", "2. Zero hunger", "plant protection", "571", "Crop health", " quality", " protection", "Mediterranean crops", "Greenhouse crops", "tomato", "15. Life on land", "01 natural sciences", "[SDV.BV.PEP]Life Sciences [q-bio]/Vegetal Biology/Phytopathology and phytopharmacy", "Organic-PLUSX", "03 medical and health sciences", "13. Climate action", "Contentious inputs", "Vegetables", "FiBL60073", "Mediterranean crops", " Greenhouse crops", " Tomato", " Contentious inputs", " plant protection", "Abacus"]}, "links": [{"href": "https://www.iris.unict.it/bitstream/20.500.11769/494877/1/Katsoulas2020_Article_CurrentUseOfCopperMineralOilsA%20%282%29.pdf"}, {"href": "https://link.springer.com/content/pdf/10.1007/s13165-020-00330-2.pdf"}, {"href": "https://doi.org/10.1007/s13165-020-00330-2"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Organic%20Agriculture", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s13165-020-00330-2", "name": "item", "description": "10.1007/s13165-020-00330-2", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s13165-020-00330-2"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-10-07T00:00:00Z"}}, {"id": "10.1016/j.fcr.2015.10.014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:25Z", "type": "Journal Article", "created": "2016-02-03", "title": "Lysimeter Study Of Nitrogen Losses And Nitrogen Use Efficiency Of Northern Chinese Wheat", "description": "Abstract A study was conducted in the lysimeters and rain-out shelter facility at Shandong Agricultural University to investigate the impact of nitrogen (N) fertilization management practices and irrigation on the losses of N and N use efficiencies of winter wheat in the Huang Huai Hai Plains of northern China. 4 factors, each with two levels, including wheat varieties (SM15 and JM19), irrigation level (well water and deficit water), N fertilizer type (manure fertilizer and urea), N fertilizer rates (90 and 180\u00a0kg N\u00a0ha\u22121) were applied in duplicate over three wheat growing seasons from 2009 to 2012. Ammonia volatilization rates (AVR) were highest immediately following fertilizer application and declined over 20 days after fertilization, AVR following urea is significantly greater than following manure application and is largely affected by soil NH4+-N concentrations. Cumulative ammonia volatilization (CAV) from urea was approximately three times that from manure. AV accounts for most of N losses and may account for 25% or more of applied N. Leaching losses increased with N fertilization concentration. Pre-winter leaching losses accounted for 69.6\u2013100% of total leaching loss. Total N losses through AV and leaching during the whole wheat growing season were estimated to range from 30 to 60% of applied N. Nitrogen use efficiency (NUE), and N uptake efficiency (NUpE) of the cultivar SM15 is 10.1 and 19.8% greater than JM19 by average under well watered conditions, respectively, but NUE and N utilization efficiency (NUtE) of JM19 were 17.5% and 21.8% higher than SM15 under water stress condition, respectively. In addition, the difference of crop N use efficiency (NUEc) and crop N uptake efficiency (NUpEc) between two varieties was inconsistent to NUE and NUpE. The following results were implicated from this study: (1) ammonia volatilization could be reduced by 66.6% through manure application instead of urea application; (2) reducing fertilizer and irrigation supply during pre-winter stage could be a effective method to reduce N loss in the region; (3) all treatments in this study lead to progressively lower soil fertility except for the 180\u00a0kg N\u00a0ha\u22121 manure which is able to maintain soil fertility; (4) wheat variety, N fertilizer level, irrigation amount and their interactions have obviously impact on NUE parameters.", "keywords": ["0106 biological sciences", "2. Zero hunger", "Soil sciences", "land and farm management", "0401 agriculture", " forestry", " and fisheries", "Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Crop and pasture production", "Soil sciences not elsewhere classified", "6. Clean water"], "contacts": [{"organization": "Limin Gu, Bin Zhao, Shuting Dong, Jiwang Zhang, Bingqiang Zhao, Hwat-Bing So, Peng Liu, Jingfeng Wang, Juan Li, Tiening Liu, Tiening Liu,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.fcr.2015.10.014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Field%20Crops%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.fcr.2015.10.014", "name": "item", "description": "10.1016/j.fcr.2015.10.014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.fcr.2015.10.014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-03-01T00:00:00Z"}}, {"id": "10.1016/j.jplph.2012.02.014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:55Z", "type": "Journal Article", "created": "2012-04-24", "title": "Drought Stress Has Contrasting Effects On Antioxidant Enzymes Activity And Phenylpropanoid Biosynthesis In Fraxinus Ornus Leaves: An Excess Light Stress Affair?", "description": "The experiment was conducted using Fraxinus ornus plants grown outside under full sunlight irradiance, and supplied with 100% (well-watered, WW), 40% (mild drought, MD), or 20% (severe drought, SD) of the daily evapotranspiration demand, with the main objective of exploring the effect of excess light stress on the activity of antioxidant enzymes and phenylpropanoid biosynthesis. Net CO\u2082 assimilation rate at saturating light and daily assimilated CO\u2082 were significantly smaller in SD than in WW and MD plants. Xanthophyll-cycle pigments supported nonphotochemical quenching to a significantly greater extent in SD than in MD and WW leaves. As a consequence, the actual efficiency of PSII (\u03a6(PSII)) was smaller, while the excess excitation-energy in the photosynthetic apparatus was greater in SD than in WW or MD plants. The concentrations of violaxanthin-cycle pigments relative to total chlorophyll (Chl(tot)) exceeded 200 mmol mol\u207b\u00b9 Chl(tot) in SD leaves at the end of the experiment. This leads to hypothesize for zeaxanthin a role not only as nonphotochemical quencher, but also as chloroplast antioxidant. Reductions in ascorbate peroxidase and catalase activities, as drought-stress progressed, were paralleled by greater accumulations of esculetin and quercetin 3-O-glycosides, both phenylpropanoids having effective capacity to scavenge H\u2082O\u2082. The drought-induced accumulation of esculetin and quercetin 3-O-glycosides in the vacuoles of mesophyll cells is consistent with their putative functions as reducing agents for H\u2082O\u2082 in excess light-stressed leaves. Nonetheless, the concentration of H\u2082O\u2082 and the lipid peroxidation were significantly greater in SD than in MD and WW leaves. It is speculated that vacuolar phenylpropanoids may constitute a secondary antioxidant system, even on a temporal basis, activated upon the depletion of primary antioxidant defences, and aimed at keeping whole-cell H\u2082O\u2082 within a sub-lethal concentration range.", "keywords": ["0301 basic medicine", "Analysis of Variance", "Principal Component Analysis", "0303 health sciences", "Time Factors", "Light", "Propanols", "Antioxidant enzymes Drought stress Phenylpropanoids Water relations Violaxanthin-cycle pigments", "Hydrogen Peroxide", "Pigments", " Biological", "Carbon Dioxide", "15. Life on land", "Antioxidants", "6. Clean water", "Antioxidant enzymes; Drought stress; Phenylpropanoids; Violaxanthin-cycle pigments; Water relations; Analysis of Variance; Antioxidants; Carbon Dioxide; Fraxinus; Hydrogen Peroxide; Malondialdehyde; Mesophyll Cells; Microscopy", " Fluorescence; Photosynthesis; Pigments", " Biological; Plant Leaves; Principal Component Analysis; Propanols; Stress", " Physiological; Time Factors; Droughts; Light; Plant Science; Physiology; Agronomy and Crop Science", "Droughts", "Plant Leaves", "03 medical and health sciences", "Fraxinus", "Microscopy", " Fluorescence", "Stress", " Physiological", "Antioxidant enzymes; drought stress; flavonoids", "Malondialdehyde", "Photosynthesis", "Mesophyll Cells"]}, "links": [{"href": "https://doi.org/10.1016/j.jplph.2012.02.014"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Plant%20Physiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jplph.2012.02.014", "name": "item", "description": "10.1016/j.jplph.2012.02.014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jplph.2012.02.014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-07-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2015.07.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:34Z", "type": "Journal Article", "created": "2015-08-24", "title": "Response Of Soil Nutrient Content, Organic Matter Characteristics And Growth Of Pine And Spruce Seedlings To Logging Residues", "description": "Abstract The aim of this study was to determine the effects of different amounts of logging residues on soil properties and growth of Scots pine and Norway spruce seedlings 10\u00a0years after clear-felling. The field experiments consisted of two Scots pine and four Norway spruce experiments. The treatments, on three replicate 8\u00a0m\u00a0\u2217\u00a08\u00a0m plots in all field experiments, were whole-tree harvesting, i.e. harvesting all the above-ground biomass with no logging residue left on the site (R0), stem-only harvesting, leaving logging residues on the site (R1), and stem-only harvesting with double the amount of logging residues left on the site (R2). In the R1 treatment the amount of logging residue in the spruce stands was 39\u201354\u00a0Mg\u00a0ha\u22121 dry mass and in the pine stands, 11\u201318\u00a0Mg\u00a0ha\u22121 dry mass. Over all sites, logging residues had no consistent effects on seedling growth, amounts of soil carbon and nutrients or organic matter characteristics. In some spruce experiments, however, logging residues increased the average diameter, height and height growth (last three years), as well as the number of seedlings, stem volume and biomass. In pine experiments, logging residues had no effect on tree or stand characteristics. In one pine experiment the amounts of exchangeable base cations increased, and there were also changes in the quality of organic matter: the C/N ratio decreased, and NH4\u2013N, microbial biomass N and C mineralization increased due to residues. In the spruce experiments and the other pine experiment, the effect of logging residues on the soil properties measured was slight. Logging residues did not affect NO3\u2013N concentrations or rates of net nitrification, which in most soils were both negligible. Seedling height and height growth correlated strongly and positively with net N mineralization and its ratio to microbial biomass N. All in all, logging residues improved tree and stand characteristics generally in spruce stands, but the effects on soil properties and processes, if any, occurred mostly in one pine stand. This poor correspondence may point to other changes brought on by the logging residues, such as changes in physical environment or decreased competition with ground vegetation, being more important for seedling growth than nutrient status was.", "keywords": ["0106 biological sciences", "nitrogen cycling", "nutrients", "13. Climate action", "logging wastes", "tree growth", "Muut aihealueet", "15. Life on land", "forest soil", "ta4112", "01 natural sciences", "630"], "contacts": [{"organization": "Saarsalmi, Anna, Tamminen, Pekka, Smolander, Aino,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2015.07.019"}, {"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.2015.07.019", "name": "item", "description": "10.1016/j.foreco.2015.07.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2015.07.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-01T00:00:00Z"}}, {"id": "10.1016/j.agrformet.2018.11.031", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:15:44Z", "type": "Journal Article", "created": "2018-11-29", "title": "Partitioning evapotranspiration of a drip-irrigated wheat crop: Inter-comparing eddy covariance-, sap flow-, lysimeter- and FAO-based methods", "description": "Abstract A precise estimate of the evapotranspiration (ET) partitioning is fundamental for determining the crop water needs and optimizing irrigation management. The plant transpiration (T) is generally considered to be the most desirable component, while reducing the soil evaporation (E) could be one of the most important water-saving actions in semi-arid agricultural regions. Given the lack of reference method to estimate the E/T partitioning of wheat crop, this study inter-compares four different methods based on eddy covariance, sap flow and lysimetry measurements and FAO modeling. The objectives are: i) to quantify the systematic and random uncertainty in E and T observations, ii) to evaluate the partitioning ratio (T/ET) at the daily/field scale and iii) to assess the performance of the FAO model over two drip irrigated wheat fields. Results indicate that despite the small surface sensed by mini-lysimeters, the partitioning ratio is evaluated more precisely (19% relative error) with lysimetry than with the other systems (any combination of eddy covariance, lysimetry and sap flow measurements). Moreover, stem-scale T measurements from sap flow sensors are subject to representativeness issues at the field scale, and to systematic errors during water-stress and senescence periods. The lysimeter-derived partitioning ratio increases from about 0.50 to 0.85 during the growth stage and rapidly drops towards 0 during senescence. Its dynamics is found to be significantly correlated (R>0.7) with the 5-cm soil moisture. By comparing FAO simulations with observations, it is found that the FAO method overestimates T and underestimates E, while keeping satisfying ET estimates for drip irrigated wheat. This study suggests that different independent measurement techniques should be implemented to both quantify and reduce uncertainties in the T/ET ratio, and that accurate observations are still needed to improve the modeling of E/T components.", "keywords": ["FAO-56", "0106 biological sciences", "2. Zero hunger", "550", "Lysimeter", "Eddy correlation", "0207 environmental engineering", "02 engineering and technology", "15. Life on land", "01 natural sciences", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "6. Clean water", "Sap flow", "Wheat", "[SDU.STU.HY] Sciences of the Universe [physics]/Earth Sciences/Hydrology", "[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "environment", "Evaporation-transpiration"]}, "links": [{"href": "https://doi.org/10.1016/j.agrformet.2018.11.031"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20and%20Forest%20Meteorology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agrformet.2018.11.031", "name": "item", "description": "10.1016/j.agrformet.2018.11.031", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agrformet.2018.11.031"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-02-01T00:00:00Z"}}, {"id": "10.1016/j.agrformet.2020.108064", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:15:44Z", "type": "Journal Article", "created": "2020-06-16", "title": "Effect of using pruning waste as an organic mulching on a drip-irrigated vineyard evapotranspiration under a semi-arid climate", "description": "Project Co-ordinators: Dr. Jose Alfonso G\u00f3mez Calero (Instituto de Agricultura Sostenible (IAS-CISC), Dr. Weifeng Xu (Fujian Agriculture and Forest University, FAFU). In a drip-irrigated vineyard soil evaporation (E) can reach up to 30-40% of the seasonal grapevine crop evapotranspiration (ETc). Vineyard soil management can be used as a technique to reduce soil E for improving crop water use efficiency. The aim of this experiment was to analyze the effect of using pruning waste as an organic mulching on vineyard ETc. During three experimental seasons, several cycles of grapevines water use determinations were conducted using a large weighing lysimeter located in Albacete (southeast Spain) under drip irrigation. Measurements were carried out under different soil management practices: i) keeping the bare soil within the lysimeter during the first 2-3 days (bare soil), ii) covering the lysimeter soil surface with pruning waste as an organic mulching (about 5 cm thick) for the next 2-3 days (organic mulch), and iii) covering the lysimeter with a waterproof canvas (plastic mulch), similar in colour to the soil, for the last 2-3 days of each measurement cycle. In 2017, the measurements period was initiated when midday stem water potential (\u03a8stem) values reached -1.3 MPa, in order to study the effect of the different soil management on grapevine ETc when vines in the lysimeter were suffering from severe water stress. During the 3-year study, plant determinations (i.e., canopy cover and the phenological stage) showed that vines were at the same stage of development during each period of measurements. Under equal evaporative demand and fractional canopy cover, results showed a reduction in the vineyard ETc between 16-18% with the organic mulching, and up to 24-30% with the plastic mulching. Even though plastic mulches significantly reduced water evaporation from soil surface, this reduction could have resulted in an increase in crop transpiration (T). However, results in this experiment show that both organic and inorganic mulching did not increase vine T compared to no mulching conditions, based on vine T values estimated during the three experimental periods of 2015. Therefore, using pruning waste as an organic mulch could be an environmental friendly alternative to reduce soil evaporation and increase crop water productivity in large areas where vineyards are drip-irrigated. This research has been funded by the Agencia Estatal de Investigaci\u00f3n with FEDER co-financing Project AGL2017-83738-C3-3-R and by the European Commission with project \u201cSHui\u201d (grant number: 773903) and project \u201cSUPROMED\u201d (grant number: 1813). R. L\u00f3pez-Urrea acknowledges the support of the Sport, Culture and Education Council (JCCM, Spain), together with FEDER funds, throughout the \u201cANIATEL\u201d project (SBPLY/17/180501/000357). Peer reviewed", "keywords": ["Plastic mulch", "2. Zero hunger", "0106 biological sciences", "Vine transpiration", "13. Climate action", "Organic mulch", "Weighing lysimeter", "15. Life on land", "Soil evaporation", "01 natural sciences", "6. Clean water", "Water use"]}, "links": [{"href": "https://doi.org/10.1016/j.agrformet.2020.108064"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20and%20Forest%20Meteorology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agrformet.2020.108064", "name": "item", "description": "10.1016/j.agrformet.2020.108064", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agrformet.2020.108064"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-09-01T00:00:00Z"}}, {"id": "10.1016/j.agrformet.2021.108393", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:15:44Z", "type": "Journal Article", "created": "2021-03-19", "title": "Estimating stomatal conductance and evapotranspiration of winter wheat using a soil-plant water relations-based stress index", "description": "Project Co-ordinators: Dr. Jose Alfonso G\u00f3mez Calero (Instituto de Agricultura Sostenible (IAS-CISC), Dr. Weifeng Xu (Fujian Agriculture and Forest University, FAFU). -- 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). Stomatal conductance, closely related to water flow in the soil-plant-atmosphere continuum, is an important parameter in the Penman-Monteith (P-M) model for estimating evapotranspiration (ET). In this study, a novel soil water stress index \u03c9, considering intrinsic soil-plant water relations, was introduced into the Jarvis empirical estimation model of stomatal conductance to improve the representation of the effect of soil water stress on stomatal conductance. The index \u03c9 accounted not only for current water availability by combing the effects of relative distribution of soil water to roots and nonlinear stomatal response, but also for the hysteresis effect of water stress by means of the inclusion of a recovery coefficient. Combined plant and soil-based measurements from a greenhouse experiment provided the basis for investigating the relationship between leaf stomatal conductance gs and root zone soil water stress represented by \u03c9. The response of gs to root-weighted soil matric potential was found to be nonlinear. The relationship between gs and the extent of previous water stress (i.e. the water stress recovery coefficient curve) was generalized by a power function and was verified and confirmed using results obtained from the literature. The reliability of \u03c9 was tested by coupling it into the Jarvis model to estimate leaf (gs) and canopy (gc) stomatal conductance, and thereupon into the P-M model to estimate cumulative ET (CET) in the greenhouse experiment and two field experiments. The estimated gs, gc and CET agreed well with the measurements, with root mean squared error not more than 0.0006 m s\u22121, 0.0020 m s\u22121 and 8.2 mm, respectively, and determination coefficient (Nash-Sutcliffe efficiency coefficient) consistently greater than 65% (0.14). Therefore, \u03c9 should be feasible and reliable to delineate the response of stomatal physiological reaction to water stress, and hence helpful for accurate estimation of ET using Jarvis-based P-M models. This research was supported partly by National Natural Science Foundation of China (U1706211, 51790532), National Key Research and Development Program of China (2016YFD0200303, 2017YFE0118100), and the European Union's Horizon 2020 research and innovation programme under Project SHui, grant agreement No 773903. Peer reviewed", "keywords": ["0106 biological sciences", "Water stress", "Penman-Monteith", "0401 agriculture", " forestry", " and fisheries", "Soil-plant water relations", "04 agricultural and veterinary sciences", "Soil matric potential", "15. Life on land", "Jarvis model", "01 natural sciences", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.agrformet.2021.108393"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20and%20Forest%20Meteorology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agrformet.2021.108393", "name": "item", "description": "10.1016/j.agrformet.2021.108393", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agrformet.2021.108393"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-06-01T00:00:00Z"}}, {"id": "10.1051/forest:2004062", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:18:29Z", "type": "Journal Article", "created": "2004-12-08", "title": "Fine Root Distribution, Seasonal Pattern And Production In Four Plantations Compared With A Natural Forest In Subtropical China", "description": "Open AccessR\u00e9partition et production de radicelles et \u00e9volutions saisonni\u00e8res dans quatre plantations en comparaison avec une for\u00eat naturelle, en Chine tropicale. La r\u00e9partition, l'\u00e9volution selon les saisons et la production nette de radicelles (< 2 mm en diam\u00e8tre) ont \u00e9t\u00e9 \u00e9tudi\u00e9es de 1999 \u00e0 2001 dans deux plantations \u00e2g\u00e9es de 33 ans de deux conif\u00e8res, le sapin de Chine (Cunninghamia lancolata, CF) et Fokienia hodginsii (FH) ainsi que dans deux plantations de feuillus, Ormosia xylocarpa (OX) et Castanopsis kawakamii (CK). Celles-ci ont \u00e9t\u00e9 compar\u00e9es \u00e0 une for\u00eat naturelle voisine de Castanopsis kawakamii (NF, 150 ans) \u00e0 Samming, Fujian, Chine. La biomasse et la n\u00e9cromasse de radicelles ont \u00e9t\u00e9 obtenues par carottage dans le sol effectu\u00e9 deux fois par mois. Les carottes de sol ont \u00e9t\u00e9 divis\u00e9es en 10 \u00e9l\u00e9ments selon la profondeur\u00a0: 0 ~ 10, 10 ~ 20, 20 ~ 30, 30 ~ 40, 40 ~ 50, 50 ~ 60, 60 ~ 70, 70 ~ 80, 80 ~ 90, et 90 ~ 100 cm. On a utilis\u00e9 des sacs \u00e0 liti\u00e8re (18 \u00d7 18 cm2, maille de 0,25 mm) pour d\u00e9terminer le taux de d\u00e9composition des radicelles (< 0,5 mm, 0,5-1 mm, 1-2 mm). Les taux de production moyenne annuelle, de mortalit\u00e9, de d\u00e9composition et de turnover des radicelles ont \u00e9t\u00e9 calcul\u00e9s par la m\u00e9thode de '\u00a0compartment flow\u00a0'. La biomasse moyenne de radicelles va de 1,49 Mg/ha dans le CF \u00e0 4,94 Mg/ha pour le NF\u00a0; elle d\u00e9cro\u00eet dans l'ordre suivant\u00a0: NF > CK > FH > OX > CF. On a enregistr\u00e9 des diff\u00e9rences significatives de biomasse et n\u00e9cromasse, selon les saisons dans tous les peuplements (P < 0,05), tandis qu'aucune fluctuation n'a pu \u00eatre mise en \u00e9vidence entre ann\u00e9es (P > 0,05). Pour tous les peuplements, on enregistre un pic de biomasse de radicelles au d\u00e9but du printemps (mars), les valeurs minimum intervenant au cours d'\u00e9t\u00e9s secs ou d'hivers froids. Pour le NF, 59,8 % de la biomasse de radicelles se situe dans la zone superficielle du sol (0-10 cm) o\u00f9 les diff\u00e9rences de biomasse de radicelles entre peuplements sont les plus marqu\u00e9es, les valeurs pour NF \u00e9tant respectivement 2,37 fois, 3,55 fois, 8,12 fois et 17,12 fois plus \u00e9lev\u00e9es que celles de CK, FH, CF, et OX. Les pourcentages de la biomasse d'origine, perdue pendant la premi\u00e8re ann\u00e9e de d\u00e9composition, vont de 43 % \u00e0 56 % pour FH, de 68 \u00e0 80 % pour NF. Les moyennes annuelles de d\u00e9composition, mortalit\u00e9 et production des racines s'\u00e9tagent entre 8,47 Mg ha-1 a-1, 8,63\u00a0Mg\u00a0ha-1\u00a0a-1 et 9,5 Mg ha-1 a-1 dans le NF \u00e0 2,50, 2,49 et 2,51 Mg ha-1 a-1 pour le CF, avec par ordre d\u00e9croissant, NF > CK > FH > OX > CF. Le taux de turnover de racines va de 1,48 a-1 pour FH \u00e0 1,78 a-1 pour NF.", "keywords": ["monoculture plantation
---
radicelle", "0106 biological sciences", "root distribution", "seasonal pattern", "root mortality", "fine root", "01 natural sciences", "root turnover", "for\u00eat naturelle", "turnover racinaire", "mortalit\u00e9 racinaire", "plantation en monoculture", "distribution", "r\u00e9partition des racines", "580", "2. Zero hunger", "04 agricultural and veterinary sciences", "production racinaire", "15. Life on land", "root", "natural forest", "monoculture plantation", "variation saisonni\u00e8re", "0401 agriculture", " forestry", " and fisheries", "[SDV.SA.SF] Life Sciences [q-bio]/Agricultural sciences/Silviculture", " forestry", "root production"], "contacts": [{"organization": "Yang, YS\uff08Dept. of Geography Science, Fujian Normal University\uff09, Chen, GS\uff08Dept. of Geography Science, Fujian Normal University\uff09, Lin, P, Xie, JS\uff08Dept. of Forestry, Fujian Agriculture and Forestry University\uff09, Guo, JF\uff08Dept. of Geography Science, Fujian Normal University\uff09,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1051/forest:2004062"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Annals%20of%20Forest%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/forest:2004062", "name": "item", "description": "10.1051/forest:2004062", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/forest:2004062"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-10-01T00:00:00Z"}}, {"id": "10.1016/j.envexpbot.2011.10.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:18Z", "type": "Journal Article", "created": "2011-10-27", "title": "Short-Term Responses Of Picea Asperata Seedlings Of Different Ages Grown In Two Contrasting Forest Ecosystems To Experimental Warming", "description": "Abstract Low temperatures are generally limiting factors in alpine ecosystems. Predicted global warming therefore could have profound impacts on these ecosystems in the future. This study was conducted to compare effects of experimental warming on the phenology, growth and photosynthesis of dragon spruce seedlings of two age classes (2- and 8-year-old seedlings) grown in two contrasting subalpine forest ecosystems (dragon spruce plantation versus spruce-fir dominated natural forest) using the open top chamber (OTC) method in the Eastern Tibetan Plateau of China. The OTCs enhanced daily mean air (30\u00a0cm above the soil surface) and soil temperatures (5\u00a0cm below the soil surface) by 1.2\u00a0\u00b0C and by 0.6\u00a0\u00b0C in two experimental sites, respectively, throughout the growing season. Conversely, soil volumetric moisture declined by 3.8% and 2.8% in the plantation and natural forest. Experimental warming markedly extended the growing season of two age classes in both sites. However, there were no clear differences in phenology between ages or sites. Warming often increased the growth and photosynthesis of dragon spruce seedlings. There were pronounced differences in the morphological and physiological performances between ages or sites. Nevertheless, there were no significant interactions of warming, age and site on phenology, growth and photosynthesis. Irrespective of seedling ages or experimental sites, artificial warming had significant increases in component biomass except the root. The size of warming effect on biomass depended strongly on seedling age and experimental site. Elevated temperatures remarkably increased net N mineralization rates and extractable inorganic N pools in both sites. Both net N mineralization and extractable inorganic N pool were pronouncedly greater in the natural forest than in the plantation. Taken together, our results indicate that warming generally has positive effects on the phenology, growth and photosynthesis for both seedling age classes in any site. Younger seedlings are more sensitive to warming as compared with the older seedlings. Reforestation dramatically affects the responses of soil N turnover and availability to warming. We conclude that both direct and indirect warming effects synchronously modify the seedling responses.", "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": "Chuan Wan, Pei Xiong, Huajun Yin, Qing Liu, Zhenfeng Xu, Zhenfeng Xu,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.envexpbot.2011.10.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20and%20Experimental%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envexpbot.2011.10.011", "name": "item", "description": "10.1016/j.envexpbot.2011.10.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envexpbot.2011.10.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-04-01T00:00:00Z"}}, {"id": "10.1016/j.envexpbot.2020.104095", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:18Z", "type": "Journal Article", "created": "2020-04-25", "title": "Alternation of wet and dry sides during partial rootzone drying irrigation enhances leaf ethylene evolution", "description": "Soil drying increases endogenous ABA and ACC concentrations in planta, but how these compounds interact to regulate stomatal responses to soil drying and re-watering is still unclear. To determine the temporal dynamics and physiological significance of root, xylem and leaf ABA and ACC concentrations in response to deficit irrigation (DI) or partial rootzone drying (PRD-F) and re-watering, these variables were measured in plants exposed to similar whole pot soil water contents. Both DI and PRD-F plants received only a fraction of the irrigation supplied to well-watered (WW) plants, either to all (DI) or part (PRD-F) of the rootzone of plants grown in split-pots. Both DI and PRD-F induced partial stomatal closure, increased root ABA and ACC accumulation consistent with local soil water content, but did not affect xylem or leaf concentrations of these compounds compared to WW plants. Two hours after re-watering all (DI-RW) or part of the rootzone (PRD-A) to the same soil water content, stomatal conductance returned to WW values or further decreased respectively. Re-watering the whole rootzone had no effect on xylem and leaf ABA and ACC concentrations, while re-watering the dry side of the pot in PRD plants had no effect on xylem and leaf ABA concentrations but increased xylem and leaf ACC concentrations and leaf ethylene evolution. Leaf water potential was similar between all irrigation treatments, with stomatal conductance declining as xylem ABA concentrations and leaf ACC concentrations increased. Prior to re-watering PRD plants, accounting for the spatial differences in soil water uptake best explained variation in xylem ACC concentration suggesting root-to-shoot ACC signalling, but this model did not account for variation in xylem ACC concentration after re-watering the dry side of PRD plants. Thus local (foliar) and long-distance (root-to-shoot) variation in ACC status both seem important in regulating the temporal dynamics of foliar ethylene evolution in plants exposed to PRD.", "keywords": ["0106 biological sciences", "Irrigation", "Stomatal conductance", "Root-to-shoot signalling", "Ethylene", "Physiological significance", "Deficit irrigation", "Plant Science", "Leaf water", "F06 Irrigation", "01 natural sciences", "ACC", "Ecology", " Evolution", " Behavior and Systematics", "580", "2. Zero hunger", "Xylem", "15. Life on land", "F60 Plant physiology and biochemistry", "6. Clean water", "Horticulture", "13. Climate action", "Soil water", "Agronomy and Crop Science", "Soil moisture heterogeneity", "Partial rootzone drying"]}, "links": [{"href": "https://eprints.lancs.ac.uk/id/eprint/144510/1/Juan_EEB_Manuscript_final.pdf"}, {"href": "https://doi.org/10.1016/j.envexpbot.2020.104095"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20and%20Experimental%20Botany", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envexpbot.2020.104095", "name": "item", "description": "10.1016/j.envexpbot.2020.104095", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envexpbot.2020.104095"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-08-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2011.11.033", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:32Z", "type": "Journal Article", "created": "2011-12-29", "title": "Biomass Production And Carbon Sequestration In A Fertile Silver Birch (Betula Pendula Roth) Forest Chronosequence", "description": "Abstract During recent decades, studies of the carbon (C) balance of forest ecosystems have became more actual, mainly in connection with the global increase of CO2 in the atmosphere. In the present study the stand chronosequence approach was applied to analyse C sequestration dynamics. Study was made of C accumulation both in biomass and in the soil in 6\u201360-year-old silver birch (Betula pendula) stands growing at fertile (Oxalis) sites. As the growth of the studied stands was vigorous, their yield was higher than that presented in several yield tables for earlier periods. The C concentration (C%) in different compartments of the trees varied between 47% and 55%. However, the weighted average of C concentration in the silver birch trees was approximately 50% regardless of stand age. The average C concentration of the herbaceous understorey plants was 43.3\u00a0\u00b1\u00a00.5%. The soil Corg pool was independent of stand age, and so far there occurred no C accumulation during stand succession, expressed as Corg values or stage of forest floor formation. This might indicate fast Corg turnover in the soils of the Oxalis site. The total C pool in a mature silver birch stand was 185\u00a0t\u00a0ha\u22121 of which 50% was accumulated in the aboveground part of the trees. In young birch stands the C pool in aboveground biomass and in the soil accounted for 21\u201339% and 53\u201371%, respectively, of the total C pool of a stand. In pre-mature and mature stands the corresponding share accounted for 50\u201359% of the aboveground C of the trees and 29\u201338% of the soil C pool. Due to closed canopies, the role of herbaceous understorey plants as a C sink was modest, constituting 1% or even less of the total C pool of the older stands. The annual C flux 1.6\u00a0t\u00a0ha\u22121\u00a0yr\u22121 into the soil via litter fall was the largest in the middle-age stand. Our results show that the main C sink in fertile silver birch stands is located in the wooden parts of trees. The C pool in tree biomass increased with stand age, whereas the soil Corg pool remained stable. For a more profound understanding of C cycling in silver birch forest, soil respiration fluxes should be measured.", "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.2011.11.033"}, {"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.2011.11.033", "name": "item", "description": "10.1016/j.foreco.2011.11.033", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2011.11.033"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-03-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2020.118510", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-13T16:16:35Z", "type": "Journal Article", "created": "2020-09-01", "title": "Tree species effects on topsoil carbon stock and concentration are mediated by tree species type, mycorrhizal association, and N-fixing ability at the global scale", "description": "Open AccessSelection of appropriate tree species is an important forest management decision that may affect sequestration of carbon (C) in soil. However, information about tree species effects on soil C stocks at the global scale remains unclear. Here, we quantitatively synthesized 850 observations from field studies that were conducted in a common garden or monoculture plantations to assess how tree species type (broadleaf vs. conifer), mycorrhizal association (arbuscular mycorrhizal (AM) vs. ectomycorrhizal (ECM)), and N-fixing ability (N-fixing vs. non-N-fixing), directly and indirectly, affect topsoil (with a median depth of 10 cm) C concentration and stock, and how such effects were influenced by environmental factors such as geographical location and climate. We found that (1) tree species type, mycorrhizal association, and N-fixing ability were all important factors affecting soil C, with lower forest floor C stocks under broadleaved (44%), AM (39%), or N-fixing (28%) trees respectively, but higher mineral soil C concentration (11%, 22%, and 156%) and stock (9%, 10%, and 6%) under broadleaved, AM, and N-fixing trees respectively; (2) tree species type, mycorrhizal association, and N-fixing ability affected forest floor C stock and mineral soil C concentration and stock directly or indirectly through impacting soil properties such as microbial biomass C and nitrogen; (3) tree species effects on mineral soil C concentration and stock were mediated by latitude, MAT, MAP, and forest stand age. These results reveal how tree species and their specific traits influence forest floor C stock and mineral soil C concentration and stock at a global scale. Insights into the underlying mechanisms of tree species effects found in our study would be useful to inform tree species selection in forest management or afforestation aiming to sequester more atmospheric C in soil for mitigation of climate change.", "keywords": ["2. Zero hunger", "Linear mixed model", "Climate", "Soil property", "Global", "04 agricultural and veterinary sciences", "15. Life on land", "Quantitative Biology - Quantitative Methods", "Meta-analysis", "13. Climate action", "FOS: Biological sciences", "0401 agriculture", " forestry", " and fisheries", "Forest floor", "Mineral soil", "Quantitative Methods (q-bio.QM)"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2020.118510"}, {"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.2020.118510", "name": "item", "description": "10.1016/j.foreco.2020.118510", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2020.118510"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-12-01T00:00:00Z"}}], "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": 3289, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-04-16T06:41:23.199813Z"}