{"type": "FeatureCollection", "features": [{"id": "10.1016/j.scitotenv.2006.08.032", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:40Z", "type": "Journal Article", "created": "2006-09-27", "title": "Seasonal Variations In Decomposition Processes In A Valley-Bottom Riparian Peatland", "description": "A year-long field survey was carried out at a valley-bottom riparian peatland site in North Wales, UK from January 2002 to December 2002 to examine the seasonal variation of decomposition processes and dissolved organic carbon (DOC) concentrations. Peat temperature, physicochemistry, organic carbon pools, basal CO(2) respiration and extracellular enzyme activities (beta-glucosidase, phosphatase, sulphatase and phenol oxidase) were monitored monthly. The results of a principle component eigenanalysis of field data show that concentrations of basal CO(2) respiration, soil solution DOC and phenolics were positively correlated to soil temperature (P<0.01, F=12.25; P<0.001, F=59.8; P<0.001, F=141.27) with Q(10) responses of 2.29, 6.42 and 14.42, respectively. Extracellular enzyme activities, however, were more strongly associated with seasonal changes in ion concentrations and did not correspond significantly to temperature alone suggesting limitations attributable to a combination of continuous anaerobiosis and/or the suppressive compounds. Restraints on soil enzyme activities may limit the loss of CO(2) from the microbial community that is dependent on soil enzyme activities for nutrient availability. The seasonal effect of temperature on DOC may be explained by increased plant rhizodeposition and microbial activity. These results do not imply that the long-term increasing trend in DOC export is explainable by temperature increase but suggest that temperature may be a key factor regulating the seasonal variation in DOC concentrations. Thus, seasonal temperature effects on DOC may represent an important component of long-term models of DOC export.", "keywords": ["Wales", "phenolics", "Climate", "beta-Glucosidase", "Temperature", "04 agricultural and veterinary sciences", "DOC", "Carbon Dioxide", "Hydrogen-Ion Concentration", "15. Life on land", "01 natural sciences", "Carbon", "Phosphoric Monoester Hydrolases", "Soil", "Phenols", "13. Climate action", "basal respiration", "0401 agriculture", " forestry", " and fisheries", "peatland", "Seasons", "Sulfatases", "soil enzymes", "Soil Microbiology", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2006.08.032"}, {"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.2006.08.032", "name": "item", "description": "10.1016/j.scitotenv.2006.08.032", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2006.08.032"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-11-01T00:00:00Z"}}, {"id": "10.1016/j.biortech.2006.11.027", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:48Z", "type": "Journal Article", "created": "2007-01-06", "title": "Effect Of Long-Term Application Of Manure And Fertilizer On Biological And Biochemical Activities In Soil During Crop Development Stages", "description": "A field experiment was conducted to investigate the effect of six long-term (34-year) fertilizer and farmyard manure (FYM) treatments (Control, N, NP, NPK, NPK+S, NPK+FYM) and three physiological stages of wheat growth on the microbial biomass carbon (MBC), nitrogen (MBN) and dehydrogenase, mineralizable N and phosphatase activities in soil. It was found that a balanced application of NPK+FYM gave the highest values for the measured parameters and lowest at the control. Values were generally highest at tillering, followed by the flowering and dough stages. A significant positive interaction between fertilizer treatments and physiological stages of wheat growth was observed, being highest at maximum tillering due to application of NPK+FYM. Stepwise regressions have revealed that grain yield of wheat was significantly associated with mineralizable N at tillering (R(2)=0.80), MBC at flowering (R(2)=0.90) and alkaline phosphatase activity (R(2)=0.70) at dough stages of wheat growth.", "keywords": ["Crops", " Agricultural", "2. Zero hunger", "Time Factors", "Bacteria", "Nitrogen", "Fungi", "04 agricultural and veterinary sciences", "Carbon", "Phosphoric Monoester Hydrolases", "Manure", "Soil", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Fertilizers", "Oxidoreductases", "Soil Microbiology", "Triticum"]}, "links": [{"href": "https://doi.org/10.1016/j.biortech.2006.11.027"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bioresource%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.biortech.2006.11.027", "name": "item", "description": "10.1016/j.biortech.2006.11.027", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.biortech.2006.11.027"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-12-01T00:00:00Z"}}, {"id": "10.1016/j.biortech.2012.01.120", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:48Z", "type": "Journal Article", "created": "2012-02-03", "title": "Chemical And Biochemical Characterisation Of Biochar-Blended Composts Prepared From Poultry Manure", "description": "The aim of this study was to assess the effect of a 2% (v/v) addition of biochar on the quality of a composting mixture prepared with poultry manure and different local organic wastes (rice husk and apple pomace). Compost quality was evaluated in terms of typical stabilisation indices, the microbial biomass and selected enzymatic activities related to the C, N and P cycles. The main effects of biochar were a 10% increase in C captured by humic substance extraction and a 30% decrease of water-soluble C, due to an enhanced degradation rate and/or the sorption of these labile compounds into the biochar. The urease, phosphatase and polyphenol oxidase activities of the biochar-blended compost were enhanced by 30-40% despite the lower amount of microbial biomass. Denaturing gradient gel electrophoresis revealed a higher diversity of fungi in biochar-amended compost, suggesting a change in microbial composition compared to the unamended compost.", "keywords": ["2. Zero hunger", "Hydrolysis", "04 agricultural and veterinary sciences", "Urease", "01 natural sciences", "Phosphoric Monoester Hydrolases", "Poultry", "Manure", "Soil", "Animals", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Catechol Oxidase", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.biortech.2012.01.120"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Bioresource%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.biortech.2012.01.120", "name": "item", "description": "10.1016/j.biortech.2012.01.120", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.biortech.2012.01.120"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-04-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2008.11.046", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:40Z", "type": "Journal Article", "created": "2008-12-20", "title": "How Nitrogen And Sulphur Addition, And A Single Drought Event Affect Root Phosphatase Activity In Phalaris Arundinacea", "description": "Conservation and restoration of fens and fen meadows often aim to reduce soil nutrients, mainly nitrogen (N) and phosphorus (P). The biogeochemistry of P has received much attention as P-enrichment is expected to negatively impact on species diversity in wetlands. It is known that N, sulphur (S) and hydrological conditions affect the biogeochemistry of P, yet their interactive effects on P-dynamics are largely unknown. Additionally, in Europe, climate change has been predicted to lead to increases in summer drought. We performed a greenhouse experiment to elucidate the interactive effects of N, S and a single drought event on the P-availability for Phalaris arundinacea. Additionally, the response of plant phosphatase activity to these factors was measured over the two year experimental period. In contrast to results from earlier experiments, our treatments hardly affected soil P-availability. This may be explained by the higher pH in our soils, hampering the formation of Fe-P or Fe-Al complexes. Addition of S, however, decreased the plants N:P ratio, indicating an effect of S on the N:P stoichiometry and an effect on the plant's P-demand. Phosphatase activity increased significantly after addition of S, but was not affected by the addition of N or a single drought event. Root phosphatase activity was also positively related to plant tissue N and P concentrations, plant N and P uptake, and plant aboveground biomass, suggesting that the phosphatase enzyme influences P-biogeochemistry. Our results demonstrated that it is difficult to predict the effects of wetland restoration, since the involved mechanisms are not fully understood. Short-term and long-term effects on root phosphatase activity may differ considerably. Additionally, the addition of S can lead to unexpected effects on the biogeochemistry of P. Our results showed that natural resource managers should be careful when restoring degraded fens or preventing desiccation of fen ecosystems.", "keywords": ["summer", "0106 biological sciences", "plant tissue", "550", "Sulphate induced enzyme activity", "phosphorus limitation", "plant", "sulfate", "drought", "deposition", "Plant Roots", "01 natural sciences", "nitrogen", "iron", "biogeochemistry", "Root-surface phosphatase", "SDG 13 - Climate Action", "Phalaris", "species richness", "phosphorus", "N:P stoichiometry", "manager", "Plant Proteins", "2. Zero hunger", "pH", "grasslands", "Phosphorus", "dynamics", "04 agricultural and veterinary sciences", "wetland", "6. Clean water", "enzyme activity", "stoichiometry", "Europe", "eutrophication", "climate change", "Nitrogen", "growth", "fresh-water wetlands", "phosphatase", "soil", "desiccation", "Stress", " Physiological", "N:P ratios", "greenhouse", "N:P rations", "Fertilizers", "580", "Phosphorus uptake", "ecosystem", "biomass", "species diversity", "carbon", "nutrient", "15. Life on land", "Phosphoric Monoester Hydrolases", "enzyme", "fertilization", "13. Climate action", "Wetlands", "sulfur", "0401 agriculture", " forestry", " and fisheries", "Sulfur"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2008.11.046"}, {"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.2008.11.046", "name": "item", "description": "10.1016/j.scitotenv.2008.11.046", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2008.11.046"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-03-01T00:00:00Z"}}, {"id": "10.1038/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": "10.1021/es061765v", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:16Z", "type": "Journal Article", "created": "2007-03-29", "title": "Interactions Between Elevated Co2 And Warming Could Amplify Doc Exports From Peatland Catchments", "description": "Peatlands export more dissolved organic carbon (DOC) than any other biome, contributing 20% of all terrestrial DOC exported to the oceans. Both warming and elevated atmospheric CO2 (eCO2) can increase DOC exports, but their interaction is poorly understood. Peat monoliths were, therefore, exposed to eCO2, warming and eCO2 + warming (combined). The combined treatment produced a synergistic (i.e., significant interaction) rise in DOC concentrations available for export (119% higher than the control, interaction P < 0.05) and enriched this pool with phenolic compounds (284%). We attribute this to increased plant inputs, coupled with impaired microbial degradation induced by competition with the vegetation for nutrients and inhibitory phenolics. Root biomass showed a synergistic increase (407% relative to the control, P < 0.1 only), while exudate inputs increased additively. Phenol oxidase was suppressed synergistically (58%, interaction P < 0.1 only) and beta-glucosidase (27%) additively, while microbial nutritional stress increased (51%) additively. Such results suggest intensified carbon exports from peatlands, with potentially widespread ramifications for aquatic processes in the receiving waters.", "keywords": ["Nitrogen", "litter decomposition", "Bryophyta", "01 natural sciences", "sphagnum", "soil", "Magnoliopsida", "Soil", "Phenols", "0105 earth and related environmental sciences", "Monophenol Monooxygenase", "beta-Glucosidase", "Temperature", "temperature", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "dissolved organic carbon", "matter", "Carbon", "Phosphoric Monoester Hydrolases", "6. Clean water", "enzyme", "bog", "13. Climate action", "community", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1021/es061765v"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Science%20%26amp%3B%20Technology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1021/es061765v", "name": "item", "description": "10.1021/es061765v", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1021/es061765v"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-03-29T00:00:00Z"}}, {"id": "10.1111/gcb.16135", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:28Z", "type": "Journal Article", "created": "2022-02-17", "title": "Mycorrhizal fungi alleviate acidification\u2010induced phosphorus limitation: Evidence from a decade\u2010long field experiment of simulated acid deposition in a tropical forest in south China", "description": "Abstract

South China has been experiencing very high rate of acid deposition and severe soil acidification in recent decades, which has been proposed to exacerbate the regional ecosystem phosphorus (P) limitation. We conducted a 10\uffe2\uff80\uff90year field experiment of simulated acid deposition to examine how acidification impacts seasonal changes of different soil P fractions in a tropical forest with highly acidic soils in south China. As expected, acid addition significantly increased occluded P pool but reduced the other more labile P pools in the dry season. In the wet season, however, acid addition did not change microbial P, soluble P and labile organic P pools. Acid addition significantly increased exchangeable Al3+ and Fe3+ and the activation of Fe oxides in both seasons. Different from the decline of microbial abundance in the dry season, acid addition increased ectomycorrhizal fungi and its ratio to arbuscular mycorrhiza fungi in the wet season, which significantly stimulated phosphomonoesterase activities and likely promoted the dissolution of occluded P. Our results suggest that, even in already highly acidic soils, the acidification\uffe2\uff80\uff90induced P limitation could be alleviated by stimulating ectomycorrhizal fungi and phosphomonoesterase activities. The differential responses and microbial controls of seasonal soil P transformation revealed here should be implemented into ecosystem biogeochemical model for predicting plant productivity under future acid deposition scenarios.South China has been experiencing very high rate of acid deposition and severe soil acidification in recent decades, which has been proposed to exacerbate the regional ecosystem phosphorus (P) limitation. We conducted a 10\uffe2\uff80\uff90year field experiment of simulated acid deposition to examine how acidification impacts seasonal changes of different soil P fractions in a tropical forest with highly acidic soils in south China. As expected, acid addition significantly increased occluded P pool but reduced the other more labile P pools in the dry season. In the wet season, however, acid addition did not change microbial P, soluble P and labile organic P pools. Acid addition significantly increased exchangeable Al3+ and Fe3+ and the activation of Fe oxides in both seasons. Different from the decline of microbial abundance in the dry season, acid addition increased ectomycorrhizal fungi and its ratio to arbuscular mycorrhiza fungi in the wet season, which significantly stimulated phosphomonoesterase activities and likely promoted the dissolution of occluded P. Our results suggest that, even in already highly acidic soils, the acidification\uffe2\uff80\uff90induced P limitation could be alleviated by stimulating ectomycorrhizal fungi and phosphomonoesterase activities. The differential responses and microbial controls of seasonal soil P transformation revealed here should be implemented into ecosystem biogeochemical model for predicting plant productivity under future acid deposition scenarios.