Decades of fire suppression following extensive timber harvesting have left much of the forest in the intermountain western United States exceedingly dense, and forest restoration techniques (i.e., thinning and prescribed fire) are increasingly being used in an attempt to mitigate the effects of severe wildfire, to enhance tree growth and regeneration, and to stimulate soil nutrient cycling. While many of the short\uffe2\uff80\uff90term effects of forest restoration have been established, the long\uffe2\uff80\uff90term effects on soil biogeochemical and ecosystem processes are largely unknown. We assessed the effects of commonly used forest restoration treatments (thinning, burning, and thinning\uffc2\uffa0+\uffc2\uffa0burning) on nutrient cycling and other ecosystem processes 11\uffc2\uffa0yr after restoration treatments were implemented in a ponderosa pine (Pinus ponderosavar.scopulorum)/Douglas fir (Pseudotsuga menziesiivar.glauca) forest at the Lubrecht Fire and Fire Surrogates Study (FFS) site in western Montana, USA. Despite short\uffe2\uff80\uff90term (<3\uffc2\uffa0yr) increases in soil inorganic nitrogen (N) pools and N cycling rates following prescribed fire, long\uffe2\uff80\uff90term soil N pools and N mineralization rates showed only subtle differences from untreated control plots. Similarly, despite a persistent positive correlation between fuels consumed in prescribed burns and several metrics of N cycling, variability in inorganic N pools decreased significantly since treatments were implemented, indicating a decline in N spatial heterogeneity through time. However, rates of net nitrification remain significantly higher in a thin + burn treatment relative to other treatments. Short\uffe2\uff80\uff90term declines in forest floor carbon (C) pools have persisted in the thin\uffc2\uffa0+\uffc2\uffa0burn treatment, but there were no significant long\uffe2\uff80\uff90term differences among treatments in extractable soil phosphorus (P). Finally, despite some short\uffe2\uff80\uff90term differences, long\uffe2\uff80\uff90term foliar nutrient concentrations, litter decomposition rates, and rates of free\uffe2\uff80\uff90living N fixation in the experimental plots were not different from control plots, suggesting nutrient cycles and ecosystem processes in temperate coniferous forests are resilient to disturbance following long periods of fire suppression. Overall, this study provides forest managers and policymakers valuable information showing that the effects of these commonly used restoration prescriptions on soil nutrient cycling are ephemeral and that use of repeated treatments (i.e., frequent fire) will be necessary to ensure continued restoration success.
", "keywords": ["0106 biological sciences", "Canada", "Time Factors", "Nitrogen", "04 agricultural and veterinary sciences", "Forests", "Nitrogen Cycle", "15. Life on land", "01 natural sciences", "Carbon", "6. Clean water", "Carbon Cycle", "Soil", "Tracheophyta", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Environmental Restoration and Remediation"], "contacts": [{"organization": "Michael J. Gundale, Rachel E. Becknell, Peter W. Ganzlin, Cory C. Cleveland,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1002/15-1100"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Applications", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/15-1100", "name": "item", "description": "10.1002/15-1100", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/15-1100"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-07-01T00:00:00Z"}}, {"id": "10.1002/ecy.1595", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:03Z", "type": "Journal Article", "created": "2016-09-28", "title": "Resource Stoichiometry And The Biogeochemical Consequences Of Nitrogen Deposition In A Mixed Deciduous Forest", "description": "AbstractEcosystems often show differential sensitivity to chronic nitrogen (N) deposition; hence, a critical challenge is to improve our understanding of how and why site\uffe2\uff80\uff90specific factors mediate biogeochemical responses to N enrichment. We examined the extent to which N impacts on soil carbon (C) and N dynamics depend on microbial resource stoichiometry. We added N to forest plots dominated by ectomycorrhizal (ECM) trees, which have litter and soil pools rich in organic N and relatively wide C:N ratios, and adjacent forest plots dominated by arbuscular mycorrhizal (AM) trees, which have litter and soil pools rich in inorganic N and relatively narrow C:N ratios. While microbes in both plot types exhibited fairly strict biomass homeostasis, microbes in AM\uffe2\uff80\uff90 and ECM\uffe2\uff80\uff90dominated plots differed in their physiological responses to N addition. Microbes in ECM plots responded to N enrichment by decreasing their investment in N\uffe2\uff80\uff90acquisition enzymes (relative to C\uffe2\uff80\uff90acquisition enzymes) and increasing N mineralization rates (relative to C mineralization rates), suggesting that N addition alleviated microbial N demand. In contrast, heterotrophic microbial activities in AM plots were unaffected by N addition, most likely as a result of N\uffe2\uff80\uff90induced increases in net nitrification (60% increase relative to control plots) and nitrate mobilization (e.g., sixfold increases in mobilization relative to control plots). Combined, our findings suggest the stoichiometric differences between AM and ECM soils are the primary drivers of the observed responses. Plant and microbial communities characterized by wide C:N are more susceptible to N\uffe2\uff80\uff90induced changes in decomposition and soil C dynamics, whereas communities characterized by narrow C:N are more susceptible to N\uffe2\uff80\uff90induced nitrate leaching losses. Hence, the biogeochemical consequences of N deposition in temperate forests may be driven by the stoichiometry of the dominant trees and their associated microbes.
", "keywords": ["2. Zero hunger", "Soil", "Nitrates", "Nitrogen", "13. Climate action", "Mycorrhizae", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Forests", "Nitrogen Cycle", "15. Life on land", "Nitrification"]}, "links": [{"href": "https://doi.org/10.1002/ecy.1595"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/ecy.1595", "name": "item", "description": "10.1002/ecy.1595", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/ecy.1595"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-12-01T00:00:00Z"}}, {"id": "10.1007/s00248-013-0225-0", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:23Z", "type": "Journal Article", "created": "2013-04-15", "title": "Agricultural Management And Labile Carbon Additions Affect Soil Microbial Community Structure And Interact With Carbon And Nitrogen Cycling", "description": "We investigated how conversion from conventional agriculture to organic management affected the structure and biogeochemical function of soil microbial communities. We hypothesized the following. (1) Changing agricultural management practices will alter soil microbial community structure driven by increasing microbial diversity in organic management. (2) Organically managed soil microbial communities will mineralize more N and will also mineralize more N in response to substrate addition than conventionally managed soil communities. (3) Microbial communities under organic management will be more efficient and respire less added C. Soils from organically and conventionally managed agroecosystems were incubated with and without glucose ((13)C) additions at constant soil moisture. We extracted soil genomic DNA before and after incubation for TRFLP community fingerprinting of soil bacteria and fungi. We measured soil C and N pools before and after incubation, and we tracked total C respired and N mineralized at several points during the incubation. Twenty years of organic management altered soil bacterial and fungal community structure compared to continuous conventional management with the bacterial differences caused primarily by a large increase in diversity. Organically managed soils mineralized twice as much NO3 (-) as conventionally managed ones (44 vs. 23 \u03bcg N/g soil, respectively) and increased mineralization when labile C was added. There was no difference in respiration, but organically managed soils had larger pools of C suggesting greater efficiency in terms of respiration per unit soil C. These results indicate that the organic management induced a change in community composition resulting in a more diverse community with enhanced activity towards labile substrates and greater capacity to mineralize N.", "keywords": ["0301 basic medicine", "2. Zero hunger", "0303 health sciences", "Environmental Microbiology and Microbial Ecology", "Bacteria", "Nitrogen", "Fungal Community Structure", "Agriculture", "Nitrogen Cycle", "15. Life on land", "Microbiology", "630", "Carbon", "Carbon Cycle", "Soil", "03 medical and health sciences", "rRNA Gene Copy", "Soil Microbial Community Structure", "fungal community", "Biology", "Ecosystem", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1007/s00248-013-0225-0"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Microbial%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00248-013-0225-0", "name": "item", "description": "10.1007/s00248-013-0225-0", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00248-013-0225-0"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-04-16T00:00:00Z"}}, {"id": "10.1007/s00442-011-1904-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:32Z", "type": "Journal Article", "created": "2011-01-25", "title": "Rapid Top-Down Regulation Of Plant C:N:P Stoichiometry By Grasshoppers In An Inner Mongolia Grassland Ecosystem", "description": "Understanding how food web interactions alter the processing of limiting nutrient elements is an important goal of ecosystem ecology. An experiment manipulating densities of the grasshopper Oedaleus asiaticus was performed to assess top-down effects of grasshoppers on C:N:P stoichiometry of plants and soil in a grassland ecosystem in Inner Mongolia (China). With increased grasshopper feeding, plant biomass declined fourfold, litter abundance increased 30%, and the plant community became dominated by non-host plant taxa. Plant stoichiometric response depended on whether or not the plant was a grasshopper host food species: C:N and C:P ratios increased with increasing grasshopper density (GD) for host plants but decreased in non-host plants. These data suggest either a direct transfer of grasshopper-recycled nutrients from host to non-host plants or a release of non-host plants from nutrient competition with heavily grazed host plants. Litterfall C:N and C:P decreased across moderate levels of grasshopper density but no effects on C:N:P stoichiometry in the surface soil were observed, possibly due to the short experimental period. Our observations of divergent C:N:P stoichiometric response among plant species highlight the important role of grasshopper herbivory in regulating plant community structure and nutrient cycling in grassland ecosystems.", "keywords": ["Male", "2. Zero hunger", "0106 biological sciences", "0301 basic medicine", "Nitrogen", "Phosphorus", "Grasshoppers", "Mongolia", "Nitrogen Cycle", "Plants", "15. Life on land", "01 natural sciences", "Carbon", "Carbon Cycle", "Soil", "03 medical and health sciences", "Animals", "Female", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1007/s00442-011-1904-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-011-1904-5", "name": "item", "description": "10.1007/s00442-011-1904-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-011-1904-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-01-26T00:00:00Z"}}, {"id": "10.1007/s00442-011-2133-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:32Z", "type": "Journal Article", "created": "2011-10-04", "title": "Soil Warming Alters Nitrogen Cycling In A New England Forest: Implications For Ecosystem Function And Structure", "description": "Global climate change is expected to affect terrestrial ecosystems in a variety of ways. Some of the more well-studied effects include the biogeochemical feedbacks to the climate system that can either increase or decrease the atmospheric load of greenhouse gases such as carbon dioxide and nitrous oxide. Less well-studied are the effects of climate change on the linkages between soil and plant processes. Here, we report the effects of soil warming on these linkages observed in a large field manipulation of a deciduous forest in southern New England, USA, where soil was continuously warmed 5\u00b0C above ambient for 7 years. Over this period, we have observed significant changes to the nitrogen cycle that have the potential to affect tree species composition in the long term. Since the start of the experiment, we have documented a 45% average annual increase in net nitrogen mineralization and a three-fold increase in nitrification such that in years 5 through 7, 25% of the nitrogen mineralized is then nitrified. The warming-induced increase of available nitrogen resulted in increases in the foliar nitrogen content and the relative growth rate of trees in the warmed area. Acer rubrum (red maple) trees have responded the most after 7 years of warming, with the greatest increases in both foliar nitrogen content and relative growth rates. Our study suggests that considering species-specific responses to increases in nitrogen availability and changes in nitrogen form is important in predicting future forest composition and feedbacks to the climate system.", "keywords": ["Ecosystem ecology - Original Paper", "0106 biological sciences", "550", "Nitrogen", "Climate Change", "Population Dynamics", "Acer", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "Nitrate Reductase", "01 natural sciences", "Trees", "Soil", "Species Specificity", "New England", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "Ecology", " Evolution", " Behavior and Systematics", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1007/s00442-011-2133-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-011-2133-7", "name": "item", "description": "10.1007/s00442-011-2133-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-011-2133-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-10-05T00:00:00Z"}}, {"id": "10.1007/s00442-012-2331-y", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:32Z", "type": "Journal Article", "created": "2012-05-03", "title": "Legacy Effects Of Drought On Plant Growth And The Soil Food Web", "description": "Soils deliver important ecosystem services, such as nutrient provision for plants and the storage of carbon (C) and nitrogen (N), which are greatly impacted by drought. Both plants and soil biota affect soil C and N availability, which might in turn affect their response to drought, offering the potential to feed back on each other's performance. In a greenhouse experiment, we compared legacy effects of repeated drought on plant growth and the soil food web in two contrasting land-use systems: extensively managed grassland, rich in C and with a fungal-based food web, and intensively managed wheat lower in C and with a bacterial-based food web. Moreover, we assessed the effect of plant presence on the recovery of the soil food web after drought. Drought legacy effects increased plant growth in both systems, and a plant strongly reduced N leaching. Fungi, bacteria, and their predators were more resilient after drought in the grassland soil than in the wheat soil. The presence of a plant strongly affected the composition of the soil food web, and alleviated the effects of drought for most trophic groups, regardless of the system. This effect was stronger for the bottom trophic levels, whose resilience was positively correlated to soil available C. Our results show that plant belowground inputs have the potential to affect the recovery of belowground communities after drought, with implications for the functions they perform, such as C and N cycling.", "keywords": ["0106 biological sciences", "570", "Food Chain", "Nematoda", "Nitrogen", "577", "Biological Availability", "Plant Development", "Poaceae", "01 natural sciences", "Soil fauna", "Soil", "Animals", "Herbivory", "Ecosystem", "Soil Microbiology", "Triticum", "2. Zero hunger", "Bacteria", "Fungi", "Nitrogen Cycle", "Plants", "15. Life on land", "Carbon", "6. Clean water", "Droughts", "England", "13. Climate action", "Wheat"]}, "links": [{"href": "https://doi.org/10.1007/s00442-012-2331-y"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-012-2331-y", "name": "item", "description": "10.1007/s00442-012-2331-y", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-012-2331-y"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-05-04T00:00:00Z"}}, {"id": "10.1007/s00442-012-2471-0", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:32Z", "type": "Journal Article", "created": "2012-10-03", "title": "Ectomycorrhizal Fungal Succession Coincides With Shifts In Organic Nitrogen Availability And Canopy Closure In Post-Wildfire Jack Pine Forests", "description": "Successional changes in belowground ectomycorrhizal fungal (EMF) communities have been observed with increasing forest stand age; however, mechanisms behind this change remain unclear. It has been hypothesized that declines of inorganic nitrogen (N) and increases of organic N influence changes in EMF taxa over forest development. In a post-wildfire chronosequence of six jack pine (Pinus banksiana) stands ranging in age from 5 to 56 years, we investigated EMF community composition and compared shifts in taxa with detailed soluble inorganic and organic N data. Taxa were identified by internal transcribed spacer rDNA sequencing, and changes in community composition evaluated with non-metric multi-dimensional scaling (NMDS). Dissimilarities in the community data were tested for correlations with N variables. We observed a successional shift along NMDS axis 1 from such taxa as Suillus brevipes and Thelephora terrestris in sites age 5 and 11 to species of Cortinarius and Russula, among others, in the four older sites. This change was positively correlated with soluble organic N (SON) (r(2) = 0.902, P = 0.033) and free amino-acid N (r(2) = 0.945, P = 0.021), but not inorganic N. Overall, our results show a successional shift of EMF communities occurring between stand initiation and canopy closure without a change in species of the dominant plant-host, and associated with SON and free amino-acid N in soil. It is uncertain whether EMF taxa are responding to these organic N forms directly, affecting their availability, or are ultimately responding to changes in other site variables, such as belowground productivity.", "keywords": ["0106 biological sciences", "Mycorrhizae", "DNA", " Ribosomal Spacer", "Population Dynamics", "0401 agriculture", " forestry", " and fisheries", "Biodiversity", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "Pinus", "01 natural sciences", "Fires"]}, "links": [{"href": "https://doi.org/10.1007/s00442-012-2471-0"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-012-2471-0", "name": "item", "description": "10.1007/s00442-012-2471-0", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-012-2471-0"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-10-04T00:00:00Z"}}, {"id": "10.1007/s00442-012-2484-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:32Z", "type": "Journal Article", "created": "2012-12-27", "title": "Herbivore Trampling As An Alternative Pathway For Explaining Differences In Nitrogen Mineralization In Moist Grasslands", "description": "Studies addressing the role of large herbivores on nitrogen cycling in grasslands have suggested that the direction of effects depends on soil fertility. Via selection for high quality plant species and input of dung and urine, large herbivores have been shown to speed up nitrogen cycling in fertile grassland soils while slowing down nitrogen cycling in unfertile soils. However, recent studies show that large herbivores can reduce nitrogen mineralization in some temperate fertile soils, but not in others. To explain this, we hypothesize that large herbivores can reduce nitrogen mineralization in loamy or clay soils through soil compaction, but not in sandy soils. Especially under wet conditions, strong compaction in clay soils can lead to periods of soil anoxia, which reduces decomposition of soil organic matter and, hence, N mineralization. In this study, we use a long-term (37-year) field experiment on a salt marsh to investigate the hypothesis that the effect of large herbivores on nitrogen mineralization depends on soil texture. Our results confirm that the presence of large herbivores decreased nitrogen mineralization rate in a clay soil, but not in a sandy soil. By comparing a hand-mown treatment with a herbivore-grazed treatment, we show that these differences can be attributed to herbivore-induced changes in soil physical properties rather than to above-ground biomass removal. On clay soil, we find that large herbivores increase the soil water-filled porosity, induce more negative soil redox potentials, reduce soil macrofauna abundance, and reduce decomposition activity. On sandy soil, we observe no changes in these variables in response to grazing. We conclude that effects of large herbivores on nitrogen mineralization cannot be understood without taking soil texture, soil moisture, and feedbacks through soil macrofauna into account.", "keywords": ["0106 biological sciences", "IMPACT", "Nitrogen", "01 natural sciences", "Soil fauna", "COMPACTION", "Soil", "SOIL PHYSICAL-PROPERTIES", "SALT-MARSH", "Large herbivores", "Soil texture", "Animals", "Biomass", "Herbivory", "Soil compaction", "Ecosystem", "2. Zero hunger", "UNGULATE", "national", "Water", "DENITRIFICATION", "Nitrogen Cycle", "15. Life on land", "N cycling", "YELLOWSTONE-NATIONAL-PARK", "PLANT-GROWTH", "13. Climate action", "ECOSYSTEM", "Clay", "Aluminum Silicates", "Soil moisture", "BAIT-LAMINA TEST"]}, "links": [{"href": "https://doi.org/10.1007/s00442-012-2484-8"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-012-2484-8", "name": "item", "description": "10.1007/s00442-012-2484-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-012-2484-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-12-28T00:00:00Z"}}, {"id": "10.1007/s00442-013-2733-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:32Z", "type": "Journal Article", "created": "2013-08-08", "title": "Nitrogen Dynamics In Arctic Tundra Soils Of Varying Age: Differential Responses To Fertilization And Warming", "description": "In the foothills of the Brooks Range, Alaska, different glaciation histories have created landscapes with varying soil age. Productivity of most of these landscapes is generally N limited, but varies widely, as do plant species composition and soil properties (e.g., pH). We hypothesized that the projected changes in productivity and vegetation composition under a warmer climate might be mediated through differential changes in N availability across soil age. We compared readily available [water-soluble NH4 (+), NO3 (-), and amino acids (AA)], moderately available (soluble proteins), hydrolyzable, and total N pools across three tussock-tundra landscapes with soil ages ranging from 11.5k to 300k years. The effects of fertilization and warming on these N pools were also compared for the two younger sites. Readily available N was highest at the oldest site, and AA accounted for 80-89 % of this N. At the youngest site, inorganic N constituted the majority (80-97 %) of total readily available N. This variation reflected the large differences in plant functional group composition and soil chemical properties. Long-term (8-16 years) fertilization increased the soluble inorganic N by 20- to 100-fold at the intermediate-age site, but only by twofold to threefold at the youngest site. Warming caused small and inconsistent changes in the soil C:N ratio and AA, but only in soils beneath Eriophorum vaginatum, the dominant tussock-forming sedge. These differential responses suggest that the ecological consequences of warmer climates on these tundra ecosystems are more complex than simply elevated N-mineralization rates, and that the responses of landscapes might be impacted by soil age, or time since deglaciation.", "keywords": ["0106 biological sciences", "Arctic Regions", "Nitrogen", "Climate Change", "Nitrogen Cycle", "15. Life on land", "01 natural sciences", "Soil", "13. Climate action", "Ice Cover", "Biomass", "Cyperaceae", "Fertilizers", "Alaska", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1007/s00442-013-2733-5"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Oecologia", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s00442-013-2733-5", "name": "item", "description": "10.1007/s00442-013-2733-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00442-013-2733-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-08-09T00:00:00Z"}}, {"id": "10.1016/j.apsoil.2016.05.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:42Z", "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": "10.1016/j.envpol.2013.03.060", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:05Z", "type": "Journal Article", "created": "2013-05-15", "title": "Nitrogen Deposition Alters Nitrogen Cycling And Reduces Soil Carbon Content In Low-Productivity Semiarid Mediterranean Ecosystems", "description": "Anthropogenic N deposition poses a threat to European Mediterranean ecosystems. We combined data from an extant N deposition gradient (4.3-7.3 kg N ha\u207b\u00b9 yr\u207b\u00b9) from semiarid areas of Spain and a field experiment in central Spain to evaluate N deposition effects on soil fertility, function and cyanobacteria community. Soil organic N did not increase along the extant gradient. Nitrogen fixation decreased along existing and experimental N deposition gradients, a result possibly related to compositional shifts in soil cyanobacteria community. Net ammonification and nitrification (which dominated N-mineralization) were reduced and increased, respectively, by N fertilization, suggesting alterations in the N cycle. Soil organic C content, C:N ratios and the activity of \u03b2-glucosidase decreased along the extant gradient in most locations. Our results suggest that semiarid soils in low-productivity sites are unable to store additional N inputs, and that are also unable to mitigate increasing C emissions when experiencing increased N deposition.", "keywords": ["Air Pollutants", "Carbon Sequestration", "550", "Nitrogen", "Qu\u00edmica", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "01 natural sciences", "Carbon", "Soil", "Spain", "13. Climate action", "XXXXXX - Unknown", "0401 agriculture", " forestry", " and fisheries", "Ecosystem", "Soil Microbiology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.envpol.2013.03.060"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Pollution", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envpol.2013.03.060", "name": "item", "description": "10.1016/j.envpol.2013.03.060", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envpol.2013.03.060"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-08-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2010.11.018", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:50Z", "type": "Journal Article", "created": "2010-12-08", "title": "Cattle Grazing Drives Nitrogen And Carbon Cycling In A Temperate Salt Marsh", "description": "Abstract We examined the impact of long-term cattle grazing on soil processes and microbial activity in a temperate salt marsh. Soil conditions, microbial biomass and respiration, mineralization and denitrification rates were measured in upper salt marsh that had been ungrazed or cattle grazed for several decades. Increased microbial biomass and soil respiration were observed in grazed marsh, most likely stimulated by enhanced rates of root turnover and root exudation. We found a significant positive effect of grazing on potential N mineralization rates measured in the laboratory, but this difference did not translate to in situ net mineralization measured monthly from May to September. Rates of denitrification were lowest in the grazed marsh and appeared to be limited by nitrate availability, possibly due to more anoxic conditions and lower rates of nitrification. The major effect of grazing on N cycling therefore appeared to be in limiting losses of N through denitrification, which may lead to enhanced nutrient availability to saltmarsh plants, but a reduced ability of the marsh to act as a buffer for land-derived nutrients to adjacent coastal areas. Additionally, we investigated if grazing influences the rates of turnover of labile and refractory C in saltmarsh soils by adding 14 C-labelled leaf litter or root exudates to soil samples and monitoring the evolution of 14 CO 2 . Grazing had little effect on the rates of mineralization of 14 C used as a respiratory substrate, but a larger proportion of 14 C was partitioned into microbial biomass and immobilized in long- and medium-term storage pools in the grazed treatment. Grazing slowed down the turnover of the microbial biomass, which resulted in longer turnover times for both leaf litter and root exudates. Grazing may therefore affect the longevity of C in the soil and alter C storage and utilization pathways in the microbial community.", "keywords": ["2. Zero hunger", "0106 biological sciences", "herbivory", "carbon cycling", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "salinity", "saltmarsh vegetation", "soil compaction", "13. Climate action", "nitrogen cycle", "0401 agriculture", " forestry", " and fisheries", "nitrogen mineralization"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2010.11.018"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2010.11.018", "name": "item", "description": "10.1016/j.soilbio.2010.11.018", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2010.11.018"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-03-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2010.09.029", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:40Z", "type": "Journal Article", "created": "2010-10-19", "title": "The Effects Of Phytophagous Insects On Water And Soil Nutrient Concentrations And Fluxes Through Forest Stands Of The Level Ii Monitoring Network In The Uk", "description": "The effects of insect defoliators on throughfall and soil nutrient fluxes were studied in coniferous and deciduous stands at five UK intensive monitoring plots (1998 to 2008). Links were found between the dissolved organic carbon (DOC), nitrogen (N) and potassium (K) fluxes through the forest system to biological activity within the canopy. Underlying soil type determined the leaching or accumulation of these elements. Under oak, monitored at two sites, frass from caterpillars of Tortrix viridana and Operophtera brumata added direct deposition of ~16kgha(-1)extra N during defoliation. Peaks of nitrate (NO(3)-N) flux between 5 and 9kgha(-1) (\u00d75 usual winter values) were recorded in consecutive years in shallow soil waters. Synchronous rises in deep soil NO(3)-N fluxes at the Grizedale sandy site indicate downward flushing, not seen at the clay site. Under three Sitka spruce stands, generation of honeydew (DOC) was attributed to two aphid species (Elatobium abietinum and Cinara pilicornis) with distinctive feeding strategies. Throughfall DOC showed mean annual fluxes (6 seasons) ~45-60kgha(-1) compared with rainfall values of 14-22kgha(-1). Increases of total N in throughfall and NO(3)-N fluxes in shallow soil solution were detected - soil water fluxes reached 8kgha(-1) in Llyn Brianne, ~25kgha(-1) in Tummel, and ~40kg NO(3)-Nha(-1) in Coalburn. At Tummel, on sandy soil, NO(3)-N leaching showed increased concentration at depth, attributed to microbiological activity within the soil. By contrast, at Coalburn and Llyn Brianne, sites on peaty gleys, soil water NO(3)-N was retained mostly within the humus layer. Soil type is thus key to predicting N movement and retention patterns. These long term analyses show important direct and indirect effects of phytophagous insects in forest ecosystems, on above and below ground processes affecting tree growth, soil condition, vegetation and water quality.", "keywords": ["0106 biological sciences", "Insecta", "Nitrogen", "Fresh Water", "Nitrogen Cycle", "15. Life on land", "01 natural sciences", "United Kingdom", "Trees", "Soil", "13. Climate action", "Animals", "Soil Pollutants", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2010.09.029"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2010.09.029", "name": "item", "description": "10.1016/j.scitotenv.2010.09.029", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2010.09.029"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-12-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2011.05.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:40Z", "type": "Journal Article", "created": "2011-06-08", "title": "Biochar For The Mitigation Of Nitrate Leaching From Soil Amended With Biosolids", "description": "Countries with sewage treatment plants produce on average 27 kg of dried biosolids/person/yr. Concerns about nitrate leaching limit the rate at which biosolids are added to soil. We sought to determine whether biochar, a form of charcoal that is added to soil, could reduce nitrate leaching from biosolids amended soil. We set up 24 (0.5 m \u00d7 0.75 m) lysimeters, filled with two soil types (Templeton Silt Loam and Ashley Dene silt loam) and amended with combinations of biochar (102 t/ha equivalent) and biosolids (600 and 1200 kg N/ha equivalent). Pasture and leachates were sampled over 5 months. Nitrate leaching from biochar plus biosolids amended soils were reduced to levels at or below the control treatments. Pasture N concentrations were similarly affected by biochar addition. Future research should focus on unravelling the mechanism responsible for the change in the nitrogen cycle in soils amended with biosolids and biochar.", "keywords": ["Nitrates", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "Plants", "15. Life on land", "Waste Disposal", " Fluid", "01 natural sciences", "6. Clean water", "13. Climate action", "Charcoal", "Soil Pollutants", "0401 agriculture", " forestry", " and fisheries", "Environmental Restoration and Remediation", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2011.05.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2011.05.011", "name": "item", "description": "10.1016/j.scitotenv.2011.05.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2011.05.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-08-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2014.07.098", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:41Z", "type": "Journal Article", "created": "2014-08-12", "title": "Effects Of Different Types Of N Deposition On The Fungal Decomposition Activities Of Temperate Forest Soils", "description": "Nitrogen (N) deposition significantly affects soil microbial activities and litter decomposition processes in forest ecosystems. However, the changes in soil fungi during litter decomposition remain unclear. In this study, ammonium nitrate was selected as inorganic N (IN), whereas urea and glycine were selected as organic N (ON). N fertilizer with different IN-to-ON ratios (1:4, 2:3, 3:2, 4:1, and 5:0) was mixed in equal amounts and then added to temperate forest soils. Half of each treatment was simultaneously added with streptomycin to inhibit soil bacteria. The activities of enzymes involved in litter decomposition (invertase, \u03b2-glucosidase, cellulase, polyphenol oxidase, and phosphatase) were assayed after a three-year field experiment. The results showed that enzymatic activities were inhibited by IN addition but accelerated by ON addition in the non-antibiotic addition treatments. An increase in ON in the mixed N fertilizer also shifted enzymatic activities from N inhibition to N stimulation. Similarly, in the antibiotic addition treatments, fungal activities revealed the same trends, but they were seriously inhibited by IN and significantly accelerated by ON. These results indicated that soil fungi were more sensitive to N deposition, particularly to ON. A large amount of ON may convert soil microbial communities into a fungi-dominated system. However, excessive ON deposition (20% IN+80% ON) caused N saturation and repressed fungal activities. These results suggested that soil fungi were sensitive to N type and that different IN-to-ON ratios may induce diverse ecological effects on soil fungi.", "keywords": ["beta-Fructofuranosidase", "Nitrogen", "Fungi", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Forests", "Nitrogen Cycle", "15. Life on land", "01 natural sciences", "Ecosystem", "Soil Microbiology", "6. Clean water", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Guo Lida, Kaiyue Qu, He Jianping, Shushan Li, Peng Guo, Yuhan Du,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2014.07.098"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2014.07.098", "name": "item", "description": "10.1016/j.scitotenv.2014.07.098", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2014.07.098"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-11-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2016.02.100", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:41Z", "type": "Journal Article", "created": "2016-02-27", "title": "Consistent Effects Of Canopy Vs. Understory Nitrogen Addition On The Soil Exchangeable Cations And Microbial Community In Two Contrasting Forests", "description": "Anthropogenic N deposition has been well documented to cause substantial impacts on the chemical and biological properties of forest soils. In most studies, however, atmospheric N deposition has been simulated by directly adding N to the forest floor. Such studies thus ignored the potentially significant effect of some key processes occurring in forest canopy (i.e., nitrogen retention) and may therefore have incorrectly assessed the effects of N deposition on soils. Here, we conducted an experiment that included both understory addition of N (UAN) and canopy addition of N (CAN) in two contrasting forests (temperate deciduous forest vs. subtropical evergreen forest). The goal was to determine whether the effects on soil exchangeable cations and microbial biomass differed between CAN and UAN. We found that N addition reduced pH, BS (base saturation) and exchangeable Ca and increased exchangeable Al significantly only at the temperate JGS site, and reduced the biomass of most soil microbial groups only at the subtropical SMT site. Except for soil exchangeable Mn, however, effects on soil chemical properties and soil microbial community did not significantly differ between CAN and UAN. Although biotic and abiotic soil characteristics differ significantly and the responses of both soil exchangeable cations and microbial biomass were different between the two study sites, we found no significant interactive effects between study site and N treatment approach on almost all soil properties involved in this study. In addition, N addition rate (25 vs. 50 kg N ha(-1) yr(-1)) did not show different effects on soil properties under both N addition approaches. These findings did not support previous prediction which expected that, by bypassing canopy effects (i.e., canopy retention and foliage fertilization), understory addition of N would overestimate the effects of N deposition on forest soil properties, at least for short time scale.", "keywords": ["2. Zero hunger", "Soil", "Nitrogen", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Forests", "Nitrogen Cycle", "15. Life on land", "Soil Microbiology", "Environmental Monitoring"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2016.02.100"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2016.02.100", "name": "item", "description": "10.1016/j.scitotenv.2016.02.100", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2016.02.100"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-05-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2017.07.060", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:42Z", "type": "Journal Article", "created": "2017-07-27", "title": "Nitrogen Deposition Has Minor Effect On Soil Extracellular Enzyme Activities In Six Chinese Forests", "description": "Soil extracellular enzymes play a key role in mediating a range of forest ecosystem functions (i.e., carbon and nutrients cycling and biological productivity), particularly in the face of atmospheric N deposition that has been increasing at an unprecedented rate globally. However, most studies have focused only on surface soils in a single ecosystem. In this study, we aimed to determine whether the effect of simulated N deposition on the activities and ratios of soil enzymes changes with soil depth across six forest ecosystems in eastern China. We collected soil samples from three blocks\u00d7four soil depths (0-10cm, 10-20cm, 20-40cm and 40-60cm)\u00d7three N treatment levels (control, 50 and 100kgNha-1year-1) at each of the six forest ecosystems. We measured the activities of seven soil enzymes involved in C-, N- and P-cycling. We found that 4-5years of N addition had no significant effect on the activities and ratios of these enzymes in most cases. The interactions among N addition, site and soil depth on soil enzyme activities were not significant, except that acid phosphatase activity showed site-specific responses to N addition. Our findings suggest that the activities of soil enzymes involved in C- and N-cycling generally do not track simulated N deposition in the six forest ecosystems. Further work on plant, soil and microbial characteristics is needed to better understand the mechanisms of soil enzyme activities in response to N deposition in forest ecosystems.", "keywords": ["China", "Soil", "Nitrogen", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "Forests", "Nitrogen Cycle", "15. Life on land", "Carbon", "Soil Microbiology", "Carbon Cycle", "Enzymes", "Trees"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2017.07.060"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2017.07.060", "name": "item", "description": "10.1016/j.scitotenv.2017.07.060", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2017.07.060"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-12-01T00:00:00Z"}}, {"id": "10.1038/nature12670", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:30Z", "type": "Journal Article", "created": "2013-10-29", "title": "Decoupling Of Soil Nutrient Cycles As A Function Of Aridity In Global Drylands", "description": "The biogeochemical cycles of carbon (C), nitrogen (N) and phosphorus (P) are interlinked by primary production, respiration and decomposition in terrestrial ecosystems. It has been suggested that the C, N and P cycles could become uncoupled under rapid climate change because of the different degrees of control exerted on the supply of these elements by biological and geochemical processes. Climatic controls on biogeochemical cycles are particularly relevant in arid, semi-arid and dry sub-humid ecosystems (drylands) because their biological activity is mainly driven by water availability. The increase in aridity predicted for the twenty-first century in many drylands worldwide may therefore threaten the balance between these cycles, differentially affecting the availability of essential nutrients. Here we evaluate how aridity affects the balance between C, N and P in soils collected from 224 dryland sites from all continents except Antarctica. We find a negative effect of aridity on the concentration of soil organic C and total N, but a positive effect on the concentration of inorganic P. Aridity is negatively related to plant cover, which may favour the dominance of physical processes such as rock weathering, a major source of P to ecosystems, over biological processes that provide more C and N, such as litter decomposition. Our findings suggest that any predicted increase in aridity with climate change will probably reduce the concentrations of N and C in global drylands, but increase that of P. These changes would uncouple the C, N and P cycles in drylands and could negatively affect the provision of key services provided by these ecosystems.", "keywords": ["0301 basic medicine", "Nitrogen", "Biolog\u00eda", "Climate Change", "Carbon Cycle", "Soil", "03 medical and health sciences", "Ecological Impacts of Climate Change", "XXXXXX - Unknown", "Ecological impacts of climate change and ecological adaptation", "Biomass", "Desiccation", "Ecosystem", "Soil Chemistry (excl Carbon Sequestration Science)", "2. Zero hunger", "drylands", "Geography", "soil fertility", "Phosphorus", "04 agricultural and veterinary sciences", "biogeochemical cycle", "Models", " Theoretical", "Nitrogen Cycle", "Plants", "15. Life on land", "Carbon", "Phosphoric Monoester Hydrolases", "Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)", "climate change", "Medio Ambiente", "13. Climate action", "Ecosystem Function", "Clay", "0401 agriculture", " forestry", " and fisheries", "Aluminum Silicates", "Desert Climate"]}, "links": [{"href": "https://doi.org/10.1038/nature12670"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nature", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/nature12670", "name": "item", "description": "10.1038/nature12670", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/nature12670"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-10-01T00:00:00Z"}}, {"id": "10.1038/s41396-023-01467-0", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:31Z", "type": "Journal Article", "created": "2023-07-14", "title": "Nitrification and beyond: metabolic versatility of ammonia oxidising archaea", "description": "AbstractAmmonia oxidising archaea are among the most abundant living organisms on Earth and key microbial players in the global nitrogen cycle. They carry out oxidation of ammonia to nitrite, and their activity is relevant for both food security and climate change. Since their discovery nearly 20 years ago, major insights have been gained into their nitrogen and carbon metabolism, growth preferences and their mechanisms of adaptation to the environment, as well as their diversity, abundance and activity in the environment. Despite significant strides forward through the cultivation of novel organisms and omics-based approaches, there are still many knowledge gaps on their metabolism and the mechanisms which enable them to adapt to the environment. Ammonia oxidising microorganisms are typically considered metabolically streamlined and highly specialised. Here we review the physiology of ammonia oxidising archaea, with focus on aspects of metabolic versatility and regulation, and discuss these traits in the context of nitrifier ecology.Because of severe abiotic limitations, Antarctic soils represent simplified systems, where microorganisms are the principal drivers of nutrient cycling. This relative simplicity makes these ecosystems particularly vulnerable to perturbations, like global warming, and the Antarctic Peninsula is among the most rapidly warming regions on the planet. However, the consequences of the ongoing warming of Antarctica on microorganisms and the processes they mediate are unknown. Here, using 16S rRNA gene pyrosequencing and qPCR, we report highly consistent responses in microbial communities across disparate sub-Antarctic and Antarctic environments in response to 3 years of experimental field warming (+0.5 to 2 \uffc2\uffb0C). Specifically, we found significant increases in the abundance of fungi and bacteria and in the Alphaproteobacteria-to-Acidobacteria ratio, which could result in an increase in soil respiration. Furthermore, shifts toward generalist bacterial communities following warming weakened the linkage between the bacterial taxonomic and functional richness. GeoChip microarray analyses also revealed significant warming effects on functional communities, specifically in the N-cycling microorganisms. Our results demonstrate that soil microorganisms across a range of sub-Antarctic and Antarctic environments can respond consistently and rapidly to increasing temperatures.
", "keywords": ["0301 basic medicine", "Climate Change", "Antarctic Regions", "global warming", "open-top chambers", "Soil", "03 medical and health sciences", "RNA", " Ribosomal", " 16S", "carbon cycle", "nitrogen cycle", "SDG 13 - Climate Action", "SDG 14 - Life Below Water", "14. Life underwater", "Soil Microbiology", "0303 health sciences", "Bacteria", "GeoChip microarrays", "Fungi", "Temperature", "Nitrogen Cycle", "15. Life on land", "Microarray Analysis", "Biota", "13. Climate action", "international", "Antarctica"]}, "links": [{"href": "https://doi.org/10.1038/ismej.2011.124"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/The%20ISME%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/ismej.2011.124", "name": "item", "description": "10.1038/ismej.2011.124", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/ismej.2011.124"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-09-22T00:00:00Z"}}, {"id": "10.1038/s43247-022-00523-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:37Z", "type": "Journal Article", "created": "2022-08-18", "title": "Ecoenzymatic stoichiometry reveals widespread soil phosphorus limitation to microbial metabolism across Chinese forests", "description": "AbstractForest soils contain a large amount of organic carbon and contribute to terrestrial carbon sequestration. However, we still have a poor understanding of what nutrients limit soil microbial metabolism that drives soil carbon release across the range of boreal to tropical forests. Here we used ecoenzymatic stoichiometry methods to investigate the patterns of microbial nutrient limitations within soil profiles (organic, eluvial and parent material horizons) across 181 forest sites throughout China. Results show that, in 80% of these forests, soil microbes were limited by phosphorus availability. Microbial phosphorus limitation increased with soil depth and from boreal to tropical forests as ecosystems become wetter, warmer, more productive, and is affected by anthropogenic nitrogen deposition. We also observed an unexpected shift in the latitudinal pattern of microbial phosphorus limitation with the lowest phosphorus limitation in the warm temperate zone (41-42\uffc2\uffb0N). Our study highlights the importance of soil phosphorus limitation to restoring forests and predicting their carbon sinks.Some microbes enhance stress tolerance in plants by minimizing plant ethylene levels via degradation of its immediate precursor, 1-aminocyclopropane-1-carboxylate (ACC), in the rhizosphere. In return, ACC is used by these microbes as a source of nitrogen. This mutualistic relationship between plants and microbes may be used to promote soil properties in stressful environments. In this study, we tested the hypothesis that amendments of ACC in soils reshape the structure of soil microbiome and alleviate the negative impacts of salinity on soil properties. We treated non-saline and artificially-developed saline soils with ACC in different concentrations for 14 days. The structure of soil microbiome, soil microbial properties and productivity were examined. Our results revealed that microbial composition of bacteria, archaea and fungi in saline soils was affected by ACC amendments; whereas community composition in non-saline soils was not affected. The amendments of ACC could not fully counteract the negative effects of salinity on soil microbial activities and productivity, but increased the abundance of ACC deaminase-encoding gene (acdS), enhanced soil microbial respiration, enzymatic activity, nitrogen and carbon cycling potentials and Arabidopsis biomass in saline soils. Collectively, our study indicates that ACC amendments in soils could efficiently ameliorate salinity impacts on soil properties and plant biomass production.Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15N:14N ratio of soil organic matter across climate gradients provide key insights into understanding global patterns of N cycling. In synthesizing data from over 6000 soil samples, we show strong global relationships among soil N isotopes, mean annual temperature (MAT), mean annual precipitation (MAP) and the concentrations of organic carbon and clay in soil. In both hot ecosystems and dry ecosystems, soil organic matter was more enriched in 15N than in corresponding cold ecosystems or wet ecosystems. Below a MAT of 9.8\uffc2\uffb0C, soil \uffce\uffb415N was invariant with MAT. At the global scale, soil organic C concentrations also declined with increasing MAT and decreasing MAP. After standardizing for variation among mineral soils in soil C and clay concentrations, soil \uffce\uffb415N showed no consistent trends across global climate and latitudinal gradients. Our analyses could place new constraints on interpretations of patterns of ecosystem N cycling and global budgets of gaseous N loss.
", "keywords": ["N-15 Natural-Abundance", "550", "Ecosystem ecology", "TROPICAL FORESTS", "Organic chemistry", "Suelo", "Nitrogen cycle", "01 natural sciences", "Nutrient cycle", "cycle de l'azote", "CARBON", "Agricultural and Biological Sciences", "Soil", "Terrestrial ecosystem", "Isotopes", "https://purl.org/becyt/ford/1.6", "Soil water", "SDG 13 - Climate Action", "N-15 NATURAL-ABUNDANCE", "Climate change", "croisement de donn\u00e9es", "Milieux et Changements globaux", "SDG 15 \u2013 Leben an Land", "Global change", "SDG 15 - Life on Land", "2. Zero hunger", "106022 Mikrobiologie", "Climatic Factors", "Tropical Forests", "Ecology", "Geography", "Nitr\u00f3geno", "Nutrient Cycling", "FRACTIONATION", "Litter Decomposition", "ECOSYSTEM ECOLOGY", "Life Sciences", "ecosystem ecology", "Cycling", "Forestry", "Is\u00f3topos", "Carbon cycle", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "Soil carbon", "6. Clean water", "Organic-Matter", "Earth and Planetary Sciences", "ORGANIC-MATTER", "Chemistry", "PRECIPITATION", "SDG 13 \u2013 Ma\u00dfnahmen zum Klimaschutz", "Physical Sciences", "106022 Microbiology", "carbone du sol", "Stable Isotope Analysis of Groundwater and Precipitation", "Ecosystem Functioning", "570", "STABLE ISOTOPE", "Biogeochemical Cycling of Nutrients in Aquatic Ecosystems", "Stable isotope analysis", "Nitrogen", "[SDE.MCG]Environmental Sciences/Global Changes", "Soil Science", "stable isotope analysis;ecosystem ecology", "Article", "Environmental science", "LITTER DECOMPOSITION", "sol min\u00e9ral", "INORGANIC NITROGEN", "Geochemistry and Petrology", "stable isotope analysis", "Carbono", "Environmental Chemistry", "Factores Clim\u00e1ticos", "https://purl.org/becyt/ford/1", "Biology", "Ecosystem", "0105 earth and related environmental sciences", "Soil science", "Soil organic matter", "Soil Fertility", "climat", "AVAILABILITY", "Nitrogen Dynamics", "15. Life on land", "Carbon", "Inorganic", "NITROGEN", "MODEL", "[SDE.MCG] Environmental Sciences/Global Changes", "13. Climate action", "FOS: Biological sciences", "Environmental Science", "PATTERNS", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems"]}, "links": [{"href": "https://scholars.unh.edu/context/faculty_pubs/article/1042/viewcontent/srep08280.pdf"}, {"href": "https://edoc.unibas.ch/37215/1/srep08280.pdf"}, {"href": "https://doi.org/10.1038/srep08280"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/srep08280", "name": "item", "description": "10.1038/srep08280", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/srep08280"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-02-06T00:00:00Z"}}, {"id": "10.1038/srep19536", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:38Z", "type": "Journal Article", "created": "2016-01-14", "title": "Soil Microbial Responses To Forest Floor Litter Manipulation And Nitrogen Addition In A Mixed-Wood Forest Of Northern China", "description": "AbstractChanges in litterfall dynamics and soil properties due to anthropogenic or natural perturbations have important implications to soil carbon (C) and nutrient cycling via microbial pathway. Here we determine soil microbial responses to contrasting types of litter inputs (leaf vs. fine woody litter) and nitrogen (N) deposition by conducting a multi-year litter manipulation and N addition experiment in a mixed-wood forest. We found significantly higher soil organic C, total N, microbial biomass C (MBC) and N (MBN), microbial activity (MR) and activities of four soil extracellular enzymes, including \uffce\uffb2-glucosidase (BG), N-acetyl-\uffce\uffb2-glucosaminidase (NAG), phenol oxidase (PO) and peroxidase (PER), as well as greater total bacteria biomass and relative abundance of gram-negative bacteria (G-) community, in top soils of plots with presence of leaf litter than of those without litter or with presence of only fine woody litter. No apparent additive or interactive effects of N addition were observed in this study. The occurrence of more labile leaf litter stimulated G-, which may facilitate microbial community growth and soil C stabilization as inferred by findings in literature. A continued treatment with contrasting types of litter inputs is likely to result in divergence in soil microbial community structure and function.
", "keywords": ["Biomass (ecology)", "China", "Biogeochemical Cycling of Nutrients in Aquatic Ecosystems", "Microbial population biology", "Nitrogen", "Soil Science", "Organic chemistry", "Forests", "Nitrogen cycle", "Article", "Plant litter", "Nutrient cycle", "Environmental science", "Microbial Ecology", "Agricultural and Biological Sciences", "Soil", "Soil biology", "Litter", "Soil water", "Genetics", "Environmental Chemistry", "Biomass", "Forest floor", "Biology", "Soil Microbiology", "Ecosystem", "2. Zero hunger", "Ecology", "Bacteria", "Marine Microbial Diversity and Biogeography", "Life Sciences", "04 agricultural and veterinary sciences", "15. Life on land", "Wood", "Soil carbon", "Carbon", "Agronomy", "6. Clean water", "3. Good health", "Chemistry", "FOS: Biological sciences", "Environmental Science", "Physical Sciences", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Nutrient"]}, "links": [{"href": "https://doi.org/10.1038/srep19536"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/srep19536", "name": "item", "description": "10.1038/srep19536", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/srep19536"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-01-14T00:00:00Z"}}, {"id": "10.1038/srep33190", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:38Z", "type": "Journal Article", "created": "2016-09-12", "title": "Grazing improves C and N cycling in the Northern Great Plains: a meta-analysis", "description": "AbstractGrazing potentially alters grassland ecosystem carbon (C) and nitrogen (N) storage and cycles, however, the overall direction and magnitude of such alterations are poorly understood on the Northern Great Plains (NGP). By synthesizing data from multiple studies on grazed NGP ecosystems, we quantified the response of 30 variables to C and N pools and fluxes to grazing using a comprehensive meta-analysis method. Results showed that grazing enhanced soil C (5.2\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff894.6% relative) and N (11.3\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff899.1%) pools in the top layer, stimulated litter decomposition (26.8\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff8918.4%) and soil N mineralization (22.3\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff8918.4%) and enhanced soil NH4+(51.5\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff8942.9%) and NO3\uffe2\uff88\uff92(47.5\uffe2\uff80\uff89\uffc2\uffb1\uffe2\uff80\uff8920.7%) concentrations. Our results indicate that the NGP grasslands have sequestered C and N in the past 70 to 80 years, recovering C and N lost during a period of widespread grassland deterioration that occurred in the first half of the 20thcentury. Sustainable grazing management employed after this deterioration has acted as a critical factor for C and N amelioration of degraded NGP grasslands and about 5.84\uffe2\uff80\uff89Mg C ha\uffe2\uff88\uff921CO2-equivalent of anthropogenic CO2emissions has been offset by these grassland soils.
", "keywords": ["0106 biological sciences", "2. Zero hunger", "Conservation of Natural Resources", "Agriculture", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "Grassland", "01 natural sciences", "Article", "United States", "Carbon Cycle", "13. Climate action", "Animals", "0401 agriculture", " forestry", " and fisheries", "Herbivory"]}, "links": [{"href": "https://doi.org/10.1038/srep33190"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/srep33190", "name": "item", "description": "10.1038/srep33190", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/srep33190"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-09-12T00:00:00Z"}}, {"id": "10.1088/1748-9326/ac652d", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:06Z", "type": "Journal Article", "created": "2022-04-07", "title": "Polyester microplastic fibers in soil increase nitrogen loss via leaching and decrease plant biomass production and N uptake", "description": "AbstractMicroplastic contamination, like other global change factors, can induce effects on ecosystem functions and processes, affecting various soil biophysical properties. However, effects of such contaminants on nutrient cycles in agroecosystems are still poorly understood. We here performed two pot experiments to investigate the effect of polyester microplastic fibers (PMFs) on soil physical properties, nitrogen cycle, and plant performance in a maize-based agroecosystem. Moreover, we followed the N loss via leaching in soil contaminated or not with PMFs by simulating heavy rainfall events that mimic a future scenario of climate change. Our results show that soil contaminated with PMFs (at a concentration of 0.5% w/w) can jeopardize agroecosystem sustainability by affecting soil physical properties and in particular soil macro- and microporosity, the nitrogen cycle, and plant performance. In particular, we found that soil PMF contamination limited crop growth and N uptake by circa 30%, and consequently increased N loss via leaching. Overall, our findings show that soil contamination with PMFs may pose problems to future agricultural challenges like food security and environmental protection.
", "keywords": ["plant nitrogen uptake", "0301 basic medicine", "2. Zero hunger", "570", "0303 health sciences", "agroecosystem sustainability", "Science", "Physics", "QC1-999", "Q", "500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie", "15. Life on land", "Environmental technology. Sanitary engineering", "6. Clean water", "microplastic in soil", "3. Good health", "Environmental sciences", "03 medical and health sciences", "13. Climate action", "soil properties", "nitrogen cycle", "GE1-350", "nitrogen leaching", "TD1-1066"]}, "links": [{"href": "https://doi.org/10.1088/1748-9326/ac652d"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1748-9326/ac652d", "name": "item", "description": "10.1088/1748-9326/ac652d", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1748-9326/ac652d"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-04-25T00:00:00Z"}}, {"id": "10.1111/gcb.12161", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:25Z", "type": "Journal Article", "created": "2013-02-06", "title": "Enhanced Root Exudation Stimulates Soil Nitrogen Transformations In A Subalpine Coniferous Forest Under Experimental Warming", "description": "AbstractDespite the perceived importance of exudation to forest ecosystem function, few studies have attempted to examine the effects of elevated temperature and nutrition availability on the rates of root exudation and associated microbial processes. In this study, we performed an experiment in whichin situexudates were collected fromPicea asperataseedlings that were transplanted in disturbed soils exposed to two levels of temperature (ambient temperature and infrared heater warming) and two nitrogen levels (unfertilized and 25\uffc2\uffa0g N\uffc2\uffa0m\uffe2\uff88\uff922\uffc2\uffa0a\uffe2\uff88\uff921). Here, we show that the trees exposed to an elevated temperature increased their exudation rates I (\uffce\uffbcg\uffc2\uffa0C\uffc2\uffa0g\uffe2\uff88\uff921root biomass\uffc2\uffa0h\uffe2\uff88\uff921), II (\uffce\uffbcg\uffc2\uffa0C\uffc2\uffa0cm\uffe2\uff88\uff921\uffc2\uffa0root length\uffc2\uffa0h\uffe2\uff88\uff921) and III (\uffce\uffbcg\uffc2\uffa0C\uffc2\uffa0cm\uffe2\uff88\uff922\uffc2\uffa0root area\uffc2\uffa0h\uffe2\uff88\uff921) in the unfertilized plots. The altered morphological and physiological traits of the roots exposed to experimental warming could be responsible for this variation in root exudation. Moreover, these increases in root\uffe2\uff80\uff90derived C were positively correlated with the microbial release of extracellular enzymes involved in the breakdown of organic N (R2\uffc2\uffa0=\uffc2\uffa00.790;P\uffc2\uffa0=\uffc2\uffa00.038), which was coupled with stimulated microbial activity and accelerated N transformations in the unfertilized soils. In contrast, the trees exposed to both experimental warming and N fertilization did not show increased exudation rates or soil enzyme activity, indicating that the stimulatory effects of experimental warming on root exudation depend on soil fertility. Collectively, our results provide preliminary evidence that an increase in the release of root exudates into the soil may be an important physiological adjustment by which the sustained growth responses of plants to experimental warming may be maintained via enhanced soil microbial activity and soil N transformation. Accordingly, the underlying mechanisms by which plant root\uffe2\uff80\uff90microbe interactions influence soil organic matter decomposition and N cycling should be incorporated into climate\uffe2\uff80\uff90carbon cycle models to determine reliable estimates of long\uffe2\uff80\uff90term C storage in forests.
", "keywords": ["2. Zero hunger", "China", "Soil", "Plant Exudates", "0401 agriculture", " forestry", " and fisheries", "Biomass", "04 agricultural and veterinary sciences", "Models", " Theoretical", "Nitrogen Cycle", "Picea", "15. Life on land", "Global Warming", "Plant Roots"], "contacts": [{"organization": "Juan Xiao, Huajun Yin, Zhenfeng Xu, Xinyin Cheng, Yufei Li, Qing Liu,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1111/gcb.12161"}, {"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.12161", "name": "item", "description": "10.1111/gcb.12161", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12161"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-04-18T00:00:00Z"}}, {"id": "10.1111/gcb.13431", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:26Z", "type": "Journal Article", "created": "2016-07-14", "title": "Grazing intensity significantly affects belowground carbon and nitrogen cycling in grassland ecosystems: a meta-analysis", "description": "AbstractLivestock grazing activities potentially alter ecosystem carbon (C) and nitrogen (N) cycles in grassland ecosystems. Despite the fact that numerous individual studies and a few meta\uffe2\uff80\uff90analyses had been conducted, how grazing, especially its intensity, affects belowground C and N cycling in grasslands remains unclear. In this study, we performed a comprehensive meta\uffe2\uff80\uff90analysis of 115 published studies to examine the responses of 19 variables associated with belowground C and N cycling to livestock grazing in global grasslands. Our results showed that, on average, grazing significantly decreased belowground C and N pools in grassland ecosystems, with the largest decreases in microbial biomass C and N (21.62% and 24.40%, respectively). In contrast, belowground fluxes, including soil respiration, soil net N mineralization and soil N nitrification increased by 4.25%, 34.67% and 25.87%, respectively, in grazed grasslands compared to ungrazed ones. More importantly, grazing intensity significantly affected the magnitude (even direction) of changes in the majority of the assessed belowground C and N pools and fluxes, and C\uffc2\uffa0:\uffc2\uffa0N ratio as well as soil moisture. Specifically,light grazing contributed to soil C and N sequestration whereas moderate and heavy grazing significantly increased C and N losses. In addition, soil depth, livestock type and climatic conditions influenced the responses of selected variables to livestock grazing to some degree. Our findings highlight the importance of the effects of grazing intensity on belowground C and N cycling, which may need to be incorporated into regional and global models for predicting effects of human disturbance on global grasslands and assessing the climate\uffe2\uff80\uff90biosphere feedbacks.
", "keywords": ["Carbon sequestration", "Mineralization", "Livestock", "Nitrogen", "Soil microbial biomass", "Poaceae", "333", "Carbon Cycle", "Soil", "Animals", "mineralization", "Herbivory", "FoR 06 (Biological Sciences)", "Ecosystem", "2. Zero hunger", "Science & Technology", "Ecology", "050205 Environmental Management", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "carbon sequestration", "Grassland", "soil microbial biomass", "Carbon", "Environmental sciences", "Biological sciences", "Heavy grazing", "13. Climate action", "heavy grazing", "CO2 emission", "Biodiversity Conservation", "0401 agriculture", " forestry", " and fisheries", "FoR 05 (Environmental Sciences)", "Life Sciences & Biomedicine"]}, "links": [{"href": "https://doi.org/10.1111/gcb.13431"}, {"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.13431", "name": "item", "description": "10.1111/gcb.13431", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.13431"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-09-22T00:00:00Z"}}, {"id": "10.1111/gcb.17309", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:28Z", "type": "Journal Article", "created": "2024-05-15", "title": "Global evidence for joint effects of multiple natural and anthropogenic drivers on soil nitrogen cycling", "description": "AbstractGlobal soil nitrogen (N) cycling remains poorly understood due to its complex driving mechanisms. Here, we present a comprehensive analysis of global soil \uffce\uffb415N, a stable isotopic signature indicative of the N input\uffe2\uff80\uff93output balance, using a machine\uffe2\uff80\uff90learning approach on 10,676 observations from 2670 sites. Our findings reveal prevalent joint effects of climatic conditions, plant N\uffe2\uff80\uff90use strategies, soil properties, and other natural and anthropogenic forcings on global soil \uffce\uffb415N. The joint effects of multiple drivers govern the latitudinal distribution of soil \uffce\uffb415N, with more rapid N cycling at lower latitudes than at higher latitudes. In contrast to previous climate\uffe2\uff80\uff90focused models, our data\uffe2\uff80\uff90driven model more accurately simulates spatial changes in global soil \uffce\uffb415N, highlighting the need to consider the joint effects of multiple drivers to estimate the Earth's N budget. These insights contribute to the reconciliation of discordances among empirical, theoretical, and modeling studies on soil N cycling, as well as sustainable N management.Determining underlying physiological patterns governing plant productivity and diversity in grasslands are critical to evaluate species responses to future environmental conditions of elevated CO2 and nitrogen (N) deposition. In a 9\uffe2\uff80\uff90year experiment, N was added to monocultures of seven C3 grassland species exposed to elevated atmospheric CO2 (560\uffe2\uff80\uff83\uffce\uffbcmol\uffe2\uff80\uff83CO2\uffe2\uff80\uff83mol\uffe2\uff88\uff921) to evaluate how N addition affects CO2 responsiveness in species of contrasting functional groups. Functional groups differed in their responses to elevated CO2 and N treatments. Forb species exhibited strong down\uffe2\uff80\uff90regulation of leaf Nmass concentrations (\uffe2\uff88\uff9226%) and photosynthetic capacity (\uffe2\uff88\uff9228%) in response to elevated CO2, especially at high N supply, whereas C3 grasses did not. Hence, achieved photosynthetic performance was markedly enhanced for C3 grasses (+68%) in elevated CO2, but not significantly for forbs. Differences in access to soil resources between forbs and grasses may distinguish their responses to elevated CO2 and N addition. Forbs had lesser root biomass, a lower distribution of biomass to roots, and lower specific root length than grasses. Maintenance of leaf N, possibly through increased root foraging in this nutrient\uffe2\uff80\uff90poor grassland, was necessary to sustain stimulation of photosynthesis under long\uffe2\uff80\uff90term elevated CO2. Dilution of leaf N and associated photosynthetic down\uffe2\uff80\uff90regulation in forbs under elevated [CO2], relative to the C3 grasses, illustrates the potential for shifts in species composition and diversity in grassland ecosystems that have significant forb and grass components.
", "keywords": ["0106 biological sciences", "Nitrogen", "Science", "Ecology and Evolutionary Biology", "Poaceae C3 grass species", "carbon dioxide enrichment", "01 natural sciences", "nitrogen", "C 3 Grass Species", "FACE", "carbon cycle", "Species Functional Groups", "nitrogen cycle", "Free-air CO 2", "Carboxylation Rate", "Photosynthesis", "2. Zero hunger", "photosynthesis", "species diversity", "Geology and Earth Sciences", "carbon dioxide", "Carboxylation rate", "15. Life on land", "Species functional groups", "grasses", "Free-air CO2", "Keywords: angiosperm", "grassland"]}, "links": [{"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/63064/5/Crous-etal_GCB2009-doi-online.pdf.jpg"}, {"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/63064/7/01_Crous_Maintenance_of_leaf_N_controls_2009.pdf.jpg"}, {"href": "https://doi.org/10.1111/j.1365-2486.2009.02058.x"}, {"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/j.1365-2486.2009.02058.x", "name": "item", "description": "10.1111/j.1365-2486.2009.02058.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2009.02058.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-06-01T00:00:00Z"}}, {"id": "10.1111/j.1365-3040.2010.02201.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:38Z", "type": "Journal Article", "created": "2010-06-21", "title": "Soil [N] modulates soil C cycling in CO2-fumigated tree stands: a meta-analysis", "description": "ABSTRACTUnder elevated atmospheric CO2 concentrations, soil carbon (C) inputs are typically enhanced, suggesting larger soil C sequestration potential. However, soil C losses also increase and progressive nitrogen (N) limitation to plant growth may reduce the CO2 effect on soil C inputs with time. We compiled a data set from 131 manipulation experiments, and used meta\uffe2\uff80\uff90analysis to test the hypotheses that: (1) elevated atmospheric CO2 stimulates soil C inputs more than C losses, resulting in increasing soil C stocks; and (2) that these responses are modulated by N. Our results confirm that elevated CO2 induces a C allocation shift towards below\uffe2\uff80\uff90ground biomass compartments. However, the increased soil C inputs were offset by increased heterotrophic respiration (Rh), such that soil C content was not affected by elevated CO2. Soil N concentration strongly interacted with CO2 fumigation: the effect of elevated CO2 on fine root biomass and \uffe2\uff80\uff93production and on microbial activity increased with increasing soil N concentration, while the effect on soil C content decreased with increasing soil N concentration. These results suggest that both plant growth and microbial activity responses to elevated CO2 are modulated by N availability, and that it is essential to account for soil N concentration in C cycling analyses.
", "keywords": ["0301 basic medicine", "Physiology", "Plant Science", "Fine root production", "Carbon Cycle", "Trees", "Soil", "03 medical and health sciences", "Microbial respiration", "microbial respiration", "XXXXXX - Unknown", "C sequestration", "SDG 13 - Climate Action", "Biomass", "Fertilizers", "Biology", "[CO] enrichment", "2. Zero hunger", "[SDU.OCEAN]Sciences of the Universe [physics]/Ocean", "0303 health sciences", "biomass", "[SDU.OCEAN] Sciences of the Universe [physics]/Ocean", " Atmosphere", "Atmosphere", "Root biomass", "Carbon Dioxide", "Nitrogen Cycle", "15. Life on land", "carbon sequestration", "N fertilization", "[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces", " environment", "nitrogen fertilizers", "roots (botany)", "13. Climate action", "[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces", "environment"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-3040.2010.02201.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%2C%20Cell%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1365-3040.2010.02201.x", "name": "item", "description": "10.1111/j.1365-3040.2010.02201.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-3040.2010.02201.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-11-12T00:00:00Z"}}, {"id": "10.1371%2fjournal.pone.0027645", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:06Z", "type": "Journal Article", "created": "2011-11-11", "title": "The Effects Of Warming And Nitrogen Addition On Soil Nitrogen Cycling In A Temperate Grassland, Northeastern China", "description": "Both climate warming and atmospheric nitrogen (N) deposition are predicted to affect soil N cycling in terrestrial biomes over the next century. However, the interactive effects of warming and N deposition on soil N mineralization in temperate grasslands are poorly understood.A field manipulation experiment was conducted to examine the effects of warming and N addition on soil N cycling in a temperate grassland of northeastern China from 2007 to 2009. Soil samples were incubated at a constant temperature and moisture, from samples collected in the field. The results showed that both warming and N addition significantly stimulated soil net N mineralization rate and net nitrification rate. Combined warming and N addition caused an interactive effect on N mineralization, which could be explained by the relative shift of soil microbial community structure because of fungal biomass increase and strong plant uptake of added N due to warming. Irrespective of strong intra- and inter-annual variations in soil N mineralization, the responses of N mineralization to warming and N addition did not change during the three growing seasons, suggesting independence of warming and N responses of N mineralization from precipitation variations in the temperate grassland.Interactions between climate warming and N deposition on soil N cycling were significant. These findings will improve our understanding on the response of soil N cycling to the simultaneous climate change drivers in temperate grassland ecosystem.", "keywords": ["2. Zero hunger", "China", "Nitrogen", "Science", "Climate Change", "Q", "R", "Temperature", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "Soil", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Ecosystem", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371%2fjournal.pone.0027645"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371%2fjournal.pone.0027645", "name": "item", "description": "10.1371%2fjournal.pone.0027645", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371%2fjournal.pone.0027645"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-11-11T00:00:00Z"}}, {"id": "10.1371/journal.pone.0027645", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:07Z", "type": "Journal Article", "created": "2011-11-11", "title": "The Effects Of Warming And Nitrogen Addition On Soil Nitrogen Cycling In A Temperate Grassland, Northeastern China", "description": "Both climate warming and atmospheric nitrogen (N) deposition are predicted to affect soil N cycling in terrestrial biomes over the next century. However, the interactive effects of warming and N deposition on soil N mineralization in temperate grasslands are poorly understood.A field manipulation experiment was conducted to examine the effects of warming and N addition on soil N cycling in a temperate grassland of northeastern China from 2007 to 2009. Soil samples were incubated at a constant temperature and moisture, from samples collected in the field. The results showed that both warming and N addition significantly stimulated soil net N mineralization rate and net nitrification rate. Combined warming and N addition caused an interactive effect on N mineralization, which could be explained by the relative shift of soil microbial community structure because of fungal biomass increase and strong plant uptake of added N due to warming. Irrespective of strong intra- and inter-annual variations in soil N mineralization, the responses of N mineralization to warming and N addition did not change during the three growing seasons, suggesting independence of warming and N responses of N mineralization from precipitation variations in the temperate grassland.Interactions between climate warming and N deposition on soil N cycling were significant. These findings will improve our understanding on the response of soil N cycling to the simultaneous climate change drivers in temperate grassland ecosystem.", "keywords": ["2. Zero hunger", "China", "Nitrogen", "Science", "Climate Change", "Q", "R", "Temperature", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "Soil", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Ecosystem", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0027645"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0027645", "name": "item", "description": "10.1371/journal.pone.0027645", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0027645"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-11-11T00:00:00Z"}}, {"id": "10.1371/journal.pone.0033217", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:07Z", "type": "Journal Article", "created": "2012-03-30", "title": "Light And Heavy Fractions Of Soil Organic Matter In Response To Climate Warming And Increased Precipitation In A Temperate Steppe", "description": "Soil is one of the most important carbon (C) and nitrogen (N) pools and plays a crucial role in ecosystem C and N cycling. Climate change profoundly affects soil C and N storage via changing C and N inputs and outputs. However, the influences of climate warming and changing precipitation regime on labile and recalcitrant fractions of soil organic C and N remain unclear. Here, we investigated soil labile and recalcitrant C and N under 6 years' treatments of experimental warming and increased precipitation in a temperate steppe in Northern China. We measured soil light fraction C (LFC) and N (LFN), microbial biomass C (MBC) and N (MBN), dissolved organic C (DOC) and heavy fraction C (HFC) and N (HFN). The results showed that increased precipitation significantly stimulated soil LFC and LFN by 16.1% and 18.5%, respectively, and increased LFC:HFC ratio and LFN:HFN ratio, suggesting that increased precipitation transferred more soil organic carbon into the quick-decayed carbon pool. Experimental warming reduced soil labile C (LFC, MBC, and DOC). In contrast, soil heavy fraction C and N, and total C and N were not significantly impacted by increased precipitation or warming. Soil labile C significantly correlated with gross ecosystem productivity, ecosystem respiration and soil respiration, but not with soil moisture and temperature, suggesting that biotic processes rather than abiotic factors determine variations in soil labile C. Our results indicate that certain soil carbon fraction is sensitive to climate change in the temperate steppe, which may in turn impact ecosystem carbon fluxes in response and feedback to climate change.", "keywords": ["2. Zero hunger", "China", "Conservation of Natural Resources", "Nitrogen", "Science", "Climate Change", "Rain", "Q", "R", "Temperature", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "Carbon", "Carbon Cycle", "Soil", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Desert Climate", "Ecosystem", "Soil Microbiology", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0033217"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0033217", "name": "item", "description": "10.1371/journal.pone.0033217", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0033217"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-03-30T00:00:00Z"}}, {"id": "10.1371/journal.pone.0076500", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:08Z", "type": "Journal Article", "created": "2013-10-04", "title": "Response Of The Abundance Of Key Soil Microbial Nitrogen-Cycling Genes To Multi-Factorial Global Changes", "description": "Multiple co-occurring environmental changes are affecting soil nitrogen cycling processes, which are mainly mediated by microbes. While it is likely that various nitrogen-cycling functional groups will respond differently to such environmental changes, very little is known about their relative responsiveness. Here we conducted four long-term experiments in a steppe ecosystem by removing plant functional groups, mowing, adding nitrogen, adding phosphorus, watering, warming, and manipulating some of their combinations. We quantified the abundance of seven nitrogen-cycling genes, including those for fixation (nifH), mineralization (chiA), nitrification (amoA of ammonia-oxidizing bacteria (AOB) or archaea (AOA)), and denitrification (nirS, nirK and nosZ). First, for each gene, we compared its sensitivities to different environmental changes and found that the abundances of various genes were sensitive to distinct and different factors. Overall, the abundances of nearly all genes were sensitive to nitrogen enrichment. In addition, the abundances of the chiA and nosZ genes were sensitive to plant functional group removal, the AOB-amoA gene abundance to phosphorus enrichment when nitrogen was added simultaneously, and the nirS and nirK gene abundances responded to watering. Second, for each single- or multi-factorial environmental change, we compared the sensitivities of the abundances of different genes and found that different environmental changes primarily affected different gene abundances. Overall, AOB-amoA gene abundance was most responsive, followed by the two denitrifying genes nosZ and nirS, while the other genes were less sensitive. These results provide, for the first time, systematic insights into how the abundance of each type of nitrogen-cycling gene and the equilibrium state of all these nitrogen-cycling gene abundances would shift under each single- or multi-factorial global change.", "keywords": ["2. Zero hunger", "Bacteria", "Science", "Microbiota", "Q", "R", "04 agricultural and veterinary sciences", "Environment", "Nitrogen Cycle", "15. Life on land", "Archaea", "Soil", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Gene-Environment Interaction", "Ecosystem", "Soil Microbiology", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371/journal.pone.0076500"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371/journal.pone.0076500", "name": "item", "description": "10.1371/journal.pone.0076500", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371/journal.pone.0076500"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-10-04T00:00:00Z"}}, {"id": "10.1111/mec.13010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:46Z", "type": "Journal Article", "created": "2014-11-20", "title": "Long-Term Balanced Fertilization Increases The Soil Microbial Functional Diversity In A Phosphorus-Limited Paddy Soil", "description": "AbstractThe influence of long\uffe2\uff80\uff90term chemical fertilization on soil microbial communities has been one of the frontier topics of agricultural and environmental sciences and is critical for linking soil microbial flora with soil functions. In this study, 16S rRNA gene pyrosequencing and a functional gene array, geochip 4.0, were used to investigate the shifts in microbial composition and functional gene structure in paddy soils with different fertilization treatments over a 22\uffe2\uff80\uff90year period. These included a control without fertilizers; chemical nitrogen fertilizer (N); N and phosphate (NP); N and potassium (NK); and N, P and K (NPK). Based on 16S rRNA gene data, both species evenness and key genera were affected by P fertilization. Functional gene array\uffe2\uff80\uff90based analysis revealed that long\uffe2\uff80\uff90term fertilization significantly changed the overall microbial functional structures. Chemical fertilization significantly increased the diversity and abundance of most genes involved in C, N, P and S cycling, especially for the treatments NK and NPK. Significant correlations were found among functional gene structure and abundance, related soil enzymatic activities and rice yield, suggesting that a fertilizer\uffe2\uff80\uff90induced shift in the microbial community may accelerate the nutrient turnover in soil, which in turn influenced rice growth. The effect of N fertilization on soil microbial functional genes was mitigated by the addition of P fertilizer in this P\uffe2\uff80\uff90limited paddy soil, suggesting that balanced chemical fertilization is beneficial to the soil microbial community and its functions.
", "keywords": ["2. Zero hunger", "Bacteria", "Nitrogen", "Oryza", "Phosphorus", "Sequence Analysis", " DNA", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "6. Clean water", "Carbon Cycle", "Soil", "13. Climate action", "RNA", " Ribosomal", " 16S", "Potassium", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Fertilizers", "Ecosystem", "Phylogeny", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1111/mec.13010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Molecular%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/mec.13010", "name": "item", "description": "10.1111/mec.13010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/mec.13010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-12-31T00:00:00Z"}}, {"id": "10.1111/nph.12409", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:46Z", "type": "Journal Article", "created": "2013-07-22", "title": "Fire, Hurricane And Carbon Dioxide: Effects On Net Primary Production Of A Subtropical Woodland", "description": "Summary
Disturbance affects most terrestrial ecosystems and has the potential to shape their responses to chronic environmental change.
Scrub\uffe2\uff80\uff90oak vegetation regenerating from fire disturbance in subtropical Florida was exposed to experimentally elevated carbon dioxide (CO2) concentration (+350\uffc2\uffa0\uffce\uffbcl\uffc2\uffa0l\uffe2\uff88\uff921) using open\uffe2\uff80\uff90top chambers for 11\uffc2\uffa0yr, punctuated by hurricane disturbance in year 8. Here, we report the effects of elevated CO2 on aboveground and belowground net primary productivity (NPP) and nitrogen (N) cycling during this experiment.
The stimulation of NPP and N uptake by elevated CO2 peaked within 2\uffc2\uffa0yr after disturbance by fire and hurricane, when soil nutrient availability was high. The stimulation subsequently declined and disappeared, coincident with low soil nutrient availability and with a CO2\uffe2\uff80\uff90induced reduction in the N concentration of oak stems.
These findings show that strong growth responses to elevated CO2 can be transient, are consistent with a progressively limited response to elevated CO2 interrupted by disturbance, and illustrate the importance of biogeochemical responses to extreme events in modulating ecosystem responses to global environmental change.
", "keywords": ["0106 biological sciences", "NITROGEN-USE EFFICIENCY", "Scrub oak ecosystem", "01 natural sciences", "Trees", "Quercus", "Soil", "nitrogen cycling", "oak woodland", "ECOSYSTEMS", "Global environmental change", "Biomass", "ROOT BIOMASS", "disturbance", "Florida scrub", "elevated CO2", "Elevated atmospheric CO2", "Plant Stems", "Cyclonic Storms", "Aboveground biomass", "FOREST PRODUCTIVITY", "Hurricane", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "Fire", "Soil carbon", "LONG-TERM EXPOSURE", "Net primary productivity", "Long term exposure", "Florida", "Elevated CO2", "fire", "FLORIDA SCRUB", "ABOVEGROUND BIOMASS", "Nitrogen cycling", "TERRESTRIAL", "Oak woodland", "ELEVATED ATMOSPHERIC CO2", "Elevated CO 2", "Nitrogen", "hurricane", "Forest productivity", "Fires", "Terrestrial ecosystems", "SCRUB-OAK ECOSYSTEM", "Net primary productivity (NPP)", "Ecosystem", "Nitrogen use efficiency", "Atmosphere", "net primary productivity (NPP)", "Root biomass", "Plant Sciences", "global environmental change", "Disturbance", "Carbon Dioxide", "15. Life on land", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "SOIL CARBON"]}, "links": [{"href": "https://digitalcommons.odu.edu/context/biology_fac_pubs/article/1266/viewcontent/Day2013FireHurricaneandCarbonDioxideOCR.pdf"}, {"href": "https://doi.org/10.1111/nph.12409"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/New%20Phytologist", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/nph.12409", "name": "item", "description": "10.1111/nph.12409", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/nph.12409"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-07-22T00:00:00Z"}}, {"id": "10.1371%2fjournal.pone.0191403", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:07Z", "type": "Journal Article", "created": "2018-01-23", "title": "Effects Of Short-Term Warming And Nitrogen Addition On The Quantity And Quality Of Dissolved Organic Matter In A Subtropical Cunninghamia Lanceolata Plantation", "description": "Increasing temperature and nitrogen (N) deposition are two large-scale changes projected to occur over the coming decades. The effects of these changes on dissolved organic matter (DOM) are largely unknown. This study aimed to assess the effects of warming and N addition on the quantity and quality of DOM from a subtropical Cunninghamia lanceolata plantation. Between 2014 and 2016, soil solutions were collected from 0-15, 15-30, and 30-60 cm depths by using a negative pressure sampling method. The quantity and quality of DOM were measured under six different treatments. The spectra showed that the DOM of the forest soil solution mainly consisted of aromatic protein-like components, microbial degradation products, and negligible amounts of humic-like substances. Warming, N addition, and warming + N addition significantly inhibited the concentration of dissolved organic carbon (DOC) in the surface (0-15 cm) soil solution. Our results suggested that warming reduced the amount of DOM originating from microbes. The decrease in protein and carboxylic acid contents was mostly attributed to the reduction of DOC following N addition. The warming + N addition treatment showed an interactive effect rather than an additive effect. Thus, short-term warming and warming + N addition decreased the quantity of DOM and facilitated the migration of nutrients to deeper soils. Further, N addition increased the complexity of the DOM structure. Hence, the loss of soil nutrients and the rational application of N need to be considered in order to prevent the accumulation of N compounds in soil.", "keywords": ["China", "Nitrogen", "Science", "Global Warming", "Models", " Biological", "Carbon Cycle", "Soil", "Imaging", " Three-Dimensional", "Organic Chemicals", "Ecosystem", "2. Zero hunger", "Tropical Climate", "Cunninghamia", "Q", "R", "Temperature", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "6. Clean water", "Spectrometry", " Fluorescence", "Solubility", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371%2fjournal.pone.0191403"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLOS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371%2fjournal.pone.0191403", "name": "item", "description": "10.1371%2fjournal.pone.0191403", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371%2fjournal.pone.0191403"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-01-23T00:00:00Z"}}, {"id": "10.1371%2fjournal.pone.0033217", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:06Z", "type": "Journal Article", "created": "2012-03-30", "title": "Light And Heavy Fractions Of Soil Organic Matter In Response To Climate Warming And Increased Precipitation In A Temperate Steppe", "description": "Soil is one of the most important carbon (C) and nitrogen (N) pools and plays a crucial role in ecosystem C and N cycling. Climate change profoundly affects soil C and N storage via changing C and N inputs and outputs. However, the influences of climate warming and changing precipitation regime on labile and recalcitrant fractions of soil organic C and N remain unclear. Here, we investigated soil labile and recalcitrant C and N under 6 years' treatments of experimental warming and increased precipitation in a temperate steppe in Northern China. We measured soil light fraction C (LFC) and N (LFN), microbial biomass C (MBC) and N (MBN), dissolved organic C (DOC) and heavy fraction C (HFC) and N (HFN). The results showed that increased precipitation significantly stimulated soil LFC and LFN by 16.1% and 18.5%, respectively, and increased LFC:HFC ratio and LFN:HFN ratio, suggesting that increased precipitation transferred more soil organic carbon into the quick-decayed carbon pool. Experimental warming reduced soil labile C (LFC, MBC, and DOC). In contrast, soil heavy fraction C and N, and total C and N were not significantly impacted by increased precipitation or warming. Soil labile C significantly correlated with gross ecosystem productivity, ecosystem respiration and soil respiration, but not with soil moisture and temperature, suggesting that biotic processes rather than abiotic factors determine variations in soil labile C. Our results indicate that certain soil carbon fraction is sensitive to climate change in the temperate steppe, which may in turn impact ecosystem carbon fluxes in response and feedback to climate change.", "keywords": ["2. Zero hunger", "China", "Conservation of Natural Resources", "Nitrogen", "Science", "Climate Change", "Rain", "Q", "R", "Temperature", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "15. Life on land", "Carbon", "Carbon Cycle", "Soil", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Desert Climate", "Ecosystem", "Soil Microbiology", "Research Article"]}, "links": [{"href": "https://doi.org/10.1371%2fjournal.pone.0033217"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/PLoS%20ONE", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1371%2fjournal.pone.0033217", "name": "item", "description": "10.1371%2fjournal.pone.0033217", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1371%2fjournal.pone.0033217"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-03-30T00:00:00Z"}}, {"id": "10.1371/journal.pone.0168134", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:10Z", "type": "Journal Article", "created": "2016-12-13", "title": "Chinese Milk Vetch As Green Manure Mitigates Nitrous Oxide Emission From Monocropped Rice System In South China", "description": "Open AccessMonocropped rice system is an important intensive cropping system for food security in China. Green manure (GM) as an alternative to fertilizer N (FN) is useful for improving soil quality. However, few studies have examined the effect of Chinese milk vetch (CMV) as GM on nitrous oxide (N2O) emission from monocropped rice field in south China. Therefore, a pot-culture experiment with four treatments (control, no FN and CMV; CMV as GM alone, M; fertilizer N alone, FN; integrating fertilizer N with CMV, NM) was performed to investigate the effect of incorporating CMV as GM on N2O emission using a closed chamber-gas chromatography (GC) technique during the rice growing periods. Under the same N rate, incorporating CMV as GM (the treatments of M and NM) mitigated N2O emission during the growing periods of rice plant, reduced the NO3- content and activities of nitrate and nitrite reductase as well as the population of nitrifying bacteria in top soil at maturity stage of rice plant versus FN pots. The global warming potential (GWP) and greenhouse gas intensity (GHGI) of N2O from monocropped rice field was ranked as MPesticides are widely used in conventional agriculture, either applied separately or in combination during the culture cycle. Due to their occurrence and persistence in soils, pesticide residues may have an impact on soil microbial communities and on supported ecosystem services. In this regard, the EFSA (European Food Safety Authority) recently published a scientific opinion inciting to change pesticide risk assessment to better protect soil microbe-mediated processes. Climate change is another major concern for all living organisms including soil microbial community stability. Extreme climatic events, such as heat waves or heavy rainfalls, are becoming more and more frequent and their impact on soil microbial diversity and functions have already been demonstrated.
The objectives of this study were to evaluate the effects of temperature and humidity disturbances and pesticide active ingredients exposure on soil microbial community structure and functions. To this end, 250 soil microcosms were exposed to either a heat disturbance, a high humidity to mimic heavy rain, or no environmental disturbance. After three days of recovery, soil microcosms were treated with different active ingredients: clopyralid (herbicide), cypermethrin (insecticide) and pyraclostrobin (fungicide). The treatments were applied alone or in combination at 1x or 10x of the agronomical dose. We then evaluated the effects of the disturbances and the active ingredients on various microbial endpoints related to the diversity and the structure of soil microbial communities, and with a specific focus on microbial guilds involved in nitrification.
Overall, we demonstrated that the impact of environmental disturbances applied to soil microcosms, especially heat, on microbial endpoints was stronger than that of the active ingredients applied alone or in combinations. Compounded effects of environmental disturbances and active ingredients were detected, but sparsely and were of small scale for the chosen pesticides and applied doses.The high use of pesticides, herbicides, and unsustainable farming practices resulted in losses of soil quality. Sustainable farming practices such as intercropping could be a good alternative to traditional monocrop, especially using legumes such as cowpea (Vigna unguiculata L. Walp). In this study, different melon and cowpea intercropping patterns (melon mixed with cowpea in the same row (MC1); alternating one melon row and one cowpea row (MC2); alternating two melon rows and one cowpea row (MC3)) were assayed to study the intercropping effect on soil bacterial community through 16S rRNA region in a 3-year experiment. The results indicated that intercropping showed high content of total organic carbon, total nitrogen and ammonium, melon yield, and bacterial diversity as well as higher levels of beneficial soil microorganisms such a Pseudomonas, Aeromicrobium, Niastella, or Sphingomonas which can promote plant growth and plant defense against pathogens. Furthermore, intercropping showed a higher rare taxa diversity in two (MC1 and MC2) out of the three intercropping systems. In addition, N-cycling genes such as nirB, nosZ, and amoA were more abundant in MC1 and MC2 whereas the narG predicted gene was far more abundant in the intercropping systems than in the monocrop at the end of the 3-year experiment. This research fills a gap in knowledge about the importance of soil bacteria in an intercropping melon/cowpea pattern, showing the benefits to yield and soil quality with a decrease in N fertilization.
", "keywords": ["0301 basic medicine", "2. Zero hunger", "0303 health sciences", "15. Life on land", "Microbiology", "QR1-502", "6. Clean water", "cowpea", "03 medical and health sciences", "melon", "nitrogen cycle", "16S rRNA", "PICRUSt2", "intercropping"]}, "links": [{"href": "https://doi.org/10.3389/fmicb.2022.1004593"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Frontiers%20in%20Microbiology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3389/fmicb.2022.1004593", "name": "item", "description": "10.3389/fmicb.2022.1004593", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3389/fmicb.2022.1004593"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-11-07T00:00:00Z"}}, {"id": "10.5061/dryad.5f5g8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:54Z", "type": "Dataset", "title": "Data from: Melanization of mycorrhizal fungal necromass structures microbial decomposer communities", "description": "unspecifiedMeliniomyces_EA_Melanin_DecompositionElemental analyses, melanin concentration and decomposition data for melanized and non-melanized Meliniomyces bicolor necromass.Meliniomyces_Decomposition_EA_Dryad_Submission.xlsx", "keywords": ["mycorrhizal fungi", "necromass", "Melanin", "Carbon cycle", "15. Life on land", "Nitrogen cycle", "Meliniomyces bicolor"], "contacts": [{"organization": "Fernandez, Christopher W., Kennedy, Peter G.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.5f5g8"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.5f5g8", "name": "item", "description": "10.5061/dryad.5f5g8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.5f5g8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-09-20T00:00:00Z"}}, {"id": "10.5194/bg-10-7361-2013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:06Z", "type": "Journal Article", "created": "2013-11-18", "title": "Effects Of Belowground Litter Addition, Increased Precipitation And Clipping On Soil Carbon And Nitrogen Mineralization In A Temperate Steppe", "description": "Abstract. Soil carbon (C) and nitrogen (N) cycling are sensitive to changes in environmental factors and play critical roles in the responses of terrestrial ecosystems to natural and anthropogenic perturbations. This study was conducted to quantify the effects of belowground particulate litter (BPL) addition, increased precipitation and their interactions on soil C and N mineralization in two adjacent sites where belowground photosynthate allocation was manipulated through vegetation clipping in a temperate steppe of northeastern China from 2010 to 2011. The results show that BPL addition significantly increase soil C mineralization rate (CMR) and net N mineralization rate (NMR). Although increased precipitation-induced enhancement of soil CMR essentially ceased after the first year, stimulation of soil NMR and net nitrification rate continued into the second year. Clipping only marginally decreased soil CMR and NMR during the two years. There were significant synergistic interactions between BPL addition (and increased precipitation) and clipping on soil CMR and NMR, likely to reflect shifts in soil microbial community structure and a decrease in arbuscular mycorrhizal fungi biomass due to the reduction of belowground photosynthate allocation. These results highlight the importance of plants in mediating the responses of soil C and N mineralization to potentially increased BPL and precipitation by controlling belowground photosynthate allocation in the temperate steppe.
", "keywords": ["Soil Degradation", "Nitrogen", "Soil Science", "Organic chemistry", "Carbon Dynamics in Peatland Ecosystems", "Nitrogen cycle", "Environmental science", "Agricultural and Biological Sciences", "Life", "QH501-531", "Soil water", "Biology", "QH540-549.5", "Ecosystem", "Soil science", "2. Zero hunger", "QE1-996.5", "Steppe", "Ecology", "Geography", "Mineralization (soil science)", "Life Sciences", "Geology", "Cycling", "Forestry", "04 agricultural and veterinary sciences", "15. Life on land", "Soil carbon", "Nitrification", "Soil Erosion and Agricultural Sustainability", "Agronomy", "Temperate climate", "Chemistry", "13. Climate action", "FOS: Biological sciences", "Environmental Science", "Physical Sciences", "Environmental chemistry", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems"], "contacts": [{"organization": "Liang Ma, Chuanyu Guo, Xiaoping Xin, S. Yuan, R. Wang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5194/bg-10-7361-2013"}, {"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-10-7361-2013", "name": "item", "description": "10.5194/bg-10-7361-2013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-10-7361-2013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-18T00:00:00Z"}}, {"id": "10.5194/bg-11-2027-2014", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:06Z", "type": "Journal Article", "created": "2014-04-10", "description": "Abstract. The LPJ-GUESS dynamic vegetation model uniquely combines an individual- and patch-based representation of vegetation dynamics with ecosystem biogeochemical cycling from regional to global scales. We present an updated version that includes plant and soil N dynamics, analysing the implications of accounting for C\uffe2\uff80\uff93N interactions on predictions and performance of the model. Stand structural dynamics and allometric scaling of tree growth suggested by global databases of forest stand structure and development were well reproduced by the model in comparison to an earlier multi-model study. Accounting for N cycle dynamics improved the goodness of fit for broadleaved forests. N limitation associated with low N-mineralisation rates reduces productivity of cold-climate and dry-climate ecosystems relative to mesic temperate and tropical ecosystems. In a model experiment emulating free-air CO2 enrichment (FACE) treatment for forests globally, N limitation associated with low N-mineralisation rates of colder soils reduces CO2 enhancement of net primary production (NPP) for boreal forests, while some temperate and tropical forests exhibit increased NPP enhancement. Under a business-as-usual future climate and emissions scenario, ecosystem C storage globally was projected to increase by ca. 10%; additional N requirements to match this increasing ecosystem C were within the high N supply limit estimated on stoichiometric grounds in an earlier study. Our results highlight the importance of accounting for C\uffe2\uff80\uff93N interactions in studies of global terrestrial N cycling, and as a basis for understanding mechanisms on local scales and in different regional contexts.
", "keywords": ["570", "QE1-996.5", "info:eu-repo/classification/ddc/550", "550", "Ecology", "ddc:550", "Geology", "15. Life on land", "551", "01 natural sciences", "Earth sciences", "Life", "13. Climate action", "ddc:570", "QH501-531", "616", "XXXXXX - Unknown", "nitrogen cycle", "carbon cycle (biogeochemistry)", "ecosystems", "QH540-549.5", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.5194/bg-11-2027-2014"}, {"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-11-2027-2014", "name": "item", "description": "10.5194/bg-11-2027-2014", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/bg-11-2027-2014"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-28T00:00:00Z"}}, {"id": "10.5194/gmd-10-3745-2017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:17Z", "type": "Journal Article", "created": "2017-10-12", "title": "A representation of the phosphorus cycle for ORCHIDEE (revision\u00a04520)", "description": "Abstract. Land surface models rarely incorporate the terrestrial phosphorus cycle and its interactions with the carbon cycle, despite the extensive scientific debate about the importance of nitrogen and phosphorus supply for future land carbon uptake. We describe a representation of the terrestrial phosphorus cycle for the ORCHIDEE land surface model, and evaluate it with data from nutrient manipulation experiments along a\uffc2\uffa0soil formation chronosequence in Hawaii. ORCHIDEE accounts for the influence of the nutritional state of vegetation on tissue nutrient concentrations, photosynthesis, plant growth, biomass allocation, biochemical (phosphatase-mediated) mineralization, and biological nitrogen fixation. Changes in the nutrient content (quality) of litter affect the carbon use efficiency of decomposition and in return the nutrient availability to vegetation. The model explicitly accounts for root zone depletion of phosphorus as a function of root phosphorus uptake and phosphorus transport from the soil to the root surface. The model captures the observed differences in the foliage stoichiometry of vegetation between an early (300-year) and a late (4.1\uffe2\uff80\uffafMyr) stage of soil development. The contrasting sensitivities of net primary productivity to the addition of either nitrogen, phosphorus, or both among sites are in general reproduced by the model. As observed, the model simulates a preferential stimulation of leaf level productivity when nitrogen stress is alleviated, while leaf level productivity and leaf area index are stimulated equally when phosphorus stress is alleviated. The nutrient use efficiencies in the model are lower than observed primarily due to biases in the nutrient content and turnover of woody biomass. We conclude that ORCHIDEE is able to reproduce the shift from nitrogen to phosphorus limited net primary productivity along the soil development chronosequence, as well as the contrasting responses of net primary productivity to nutrient addition.
", "keywords": ["Biomass (ecology)", "Chronosequence", "Organic chemistry", "chronos\u00e9quence", "Plant Science", "mod\u00e8le", "Nitrogen cycle", "01 natural sciences", "Nutrient cycle", "Agricultural and Biological Sciences", "Soil water", "Pathology", "2. Zero hunger", "QE1-996.5", "Global and Planetary Change", "Orchidee", "Ecology", "Physics", "Life Sciences", "Geology", "Phosphorus", "Carbon cycle", "Chemistry", "nutrition", "Physical Sciences", "Medicine", "[SDU.STU.GP] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]", "Ecosystem Functioning", "Vegetation (pathology)", "cycle du carbone", "570", "[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]", "Nitrogen", "hawai", "Soil Science", "mod\u00e8le orchid\u00e9e", "Environmental science", "vegetation", "phosphore du sol", "Biology", "Ecosystem", "0105 earth and related environmental sciences", "Soil science", "Soil Fertility", "ddc:550", "Global Forest Drought Response and Climate Change", "surface terrestre", "Plant Nutrient Uptake and Signaling Pathways", "15. Life on land", "Agronomy", "hawaii", "13. Climate action", "FOS: Biological sciences", "Environmental Science", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems", "Nutrient"]}, "links": [{"href": "https://gmd.copernicus.org/articles/10/3745/2017/gmd-10-3745-2017.pdf"}, {"href": "https://doi.org/10.5194/gmd-10-3745-2017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoscientific%20Model%20Development", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5194/gmd-10-3745-2017", "name": "item", "description": "10.5194/gmd-10-3745-2017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5194/gmd-10-3745-2017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-10-12T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Nitrogen+Cycle&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=Nitrogen+Cycle&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=Nitrogen+Cycle&", "hreflang": "en-US"}, {"rel": "next", "type": "application/geo+json", "title": "items (next)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Nitrogen+Cycle&offset=50", "hreflang": "en-US"}], "numberMatched": 74, "numberReturned": 50, "distributedFeatures": [], "timeStamp": "2026-05-25T10:16:55.509996Z"}