Climate and land-use changes have altered both litter quality and quantity, with cascading impacts on soil respiration (SR). Soil extracellular enzymes (EEs) like cellulase and ligninase are crucial for deconstructing plant litter because they convert polymers into monomers. However, whether and how changes in litter inputs influence soil cellulase and ligninase activities as well as the implications for SR remain poorly understood. We conducted a global meta-analysis of 827 observations on the responses of SR and soil cellulase and ligninase activities to litter addition and litter removal. Litter addition significantly increased cellulase activity by 25 %, whereas litter removal decreased it by 26 %. Neither litter addition nor litter removal affected ligninase activity. Changes in cellulase activity correlated positively with SR under both litter addition and litter removal, but no such relationship was found for ligninase activity. These results indicate that changes in litter inputs affect SR primarily by affecting the microbial decomposition of readily decomposable rather than more structurally complex carbon pools. In addition, the effects of changes in litter inputs on cellulase activity decreased with treatment duration, suggesting that the long-term effects of changes in litter inputs on SR might be smaller than previously thought. Our results underscore the dominant role of cellulase in mediating the responses of SR to altered litter inputs. Integrating cellulase responses to altered litter inputs into Earth system models could improve the representation of microbial processes and refine the predictions of soil carbon dynamics.
", "keywords": ["Soil carbon pools", "Litter alternations", "Soil respiration", "Global changes", "Soil extracellular enzymes", "Soil microorganisms"]}, "links": [{"href": "https://doi.org/10.1016/j.agrformet.2025.110503"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agricultural%20and%20Forest%20Meteorology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agrformet.2025.110503", "name": "item", "description": "10.1016/j.agrformet.2025.110503", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agrformet.2025.110503"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-05-01T00:00:00Z"}}, {"id": "10.1016/j.biombioe.2013.05.033", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:15Z", "type": "Journal Article", "created": "2013-06-22", "title": "Net Ecosystem Production And Carbon Balance Of An Src Poplar Plantation During Its First Rotation", "description": "AbstractTo evaluate the potential of woody bioenergy crops as an alternative energy source, there is need for a more comprehensive understanding of their carbon cycling and their allocation patterns throughout the lifespan. We therefore quantified the net ecosystem production (NEP) of a poplar (Populus) short rotation coppice (SRC) culture in Flanders during its second growing season.Eddy covariance (EC) techniques were applied to obtain the annual net ecosystem exchange (NEE) of the plantation. Further, by applying a component-flux-based approach NEP was calculated as the difference between the modelled gross photosynthesis and the respiratory fluxes from foliage, stem and soil obtained via upscaling from chamber measurements. A combination of biomass sampling, inventories and upscaling techniques was used to determine NEP via a pool-change-based approach.Across the three approaches, the net carbon balance ranged from 96 to 199\u00a0g\u00a0m\u22122\u00a0y\u22121 indicating a significant net carbon uptake by the SRC culture. During the establishment year the SRC culture was a net source of carbon to the atmosphere, but already during the second growing season there was a significant net uptake. Both the component-flux-based and pool-change-based approaches resulted in higher values (47\u2013108%) than the EC-estimation of NEE, though the results were comparable considering the considerable and variable uncertainty levels involved in the different approaches. The efficient biomass production \u2013 with the highest part of the total carbon uptake allocated to the aboveground wood \u2013 led the poplars to counterbalance the soil carbon losses resulting from land use change in a short period of time.", "keywords": ["2. Zero hunger", "0106 biological sciences", "NEE", "Renewable Energy", " Sustainability and the Environment", "Physics", "Carbon pools", "Forestry", "15. Life on land", "7. Clean energy", "01 natural sciences", "Net primary production", "Carbon budget", "Populus", "Carbon fluxes", "Biology", "Engineering sciences. Technology", "Agronomy and Crop Science", "Waste Management and Disposal", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.biombioe.2013.05.033"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biomass%20and%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.biombioe.2013.05.033", "name": "item", "description": "10.1016/j.biombioe.2013.05.033", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.biombioe.2013.05.033"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-09-01T00:00:00Z"}}, {"id": "10.1016/j.foreco.2011.06.036", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:16:47Z", "type": "Journal Article", "created": "2011-07-27", "title": "Carbon Accumulation In The Biomass And Soil Of Different Aged Secondary Forests In The Humid Tropics Of Costa Rica", "description": "Open AccessMinisterio de Ciencia y Tecnolog\u00eda, Costa Rica", "keywords": ["0106 biological sciences", "NATURAL REGENERATION", "PLANTACIONES", "Carbon pools", "Tree plantations", "Biomass models", "ARBOLES", "NATURAL RESERVES", "15. Life on land", "01 natural sciences", "Environmental science", "BIOMASS", "CARBON", "PLANTATIONS", "RESERVAS NATURALES", "Medio Ambiente", "REGENERACION NATURAL", "TREES", "CARBONO", "Succession age", "Natural regeneration", "BIOMASA"]}, "links": [{"href": "https://doi.org/10.1016/j.foreco.2011.06.036"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forest%20Ecology%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.foreco.2011.06.036", "name": "item", "description": "10.1016/j.foreco.2011.06.036", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.foreco.2011.06.036"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-10-01T00:00:00Z"}}, {"id": "10.1016/j.still.2015.02.008", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:17:48Z", "type": "Journal Article", "created": "2015-03-13", "title": "Evaluation Of Seasonal Variability Of Soil Biogeochemical Properties In Aggregate-Size Fractioned Soil Under Different Tillages", "description": "Open AccessPeer reviewed", "keywords": ["CP MAS NMR", "2. Zero hunger", "Enzymatic activities", "Conservation agriculture", "Total organic carbon", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "3. Good health", "13. Climate action", "Labile carbon pools", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2015.02.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2015.02.008", "name": "item", "description": "10.1016/j.still.2015.02.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2015.02.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-08-01T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2004.00883.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-30T16:19:31Z", "type": "Journal Article", "created": "2004-12-02", "title": "Carbon Flow In An Upland Grassland: Effect Of Liming On The Flux Of Recently Photosynthesized Carbon To Rhizosphere Soil", "description": "AbstractThe effect of liming on the flow of recently photosynthesized carbon to rhizosphere soil was studied using 13CO2 pulse labelling, in an upland grassland ecosystem in Scotland. The use of 13C enabled detection, in the field, of the effect of a 4\uffe2\uff80\uff90year liming period of selected soil plots on C allocation from plant biomass to soil, in comparison with unlimed plots. Photosynthetic rates and carbon turnover were higher in plants grown in limed soils than in those from unlimed plots. Higher \uffce\uffb413C\uffe2\uff80\uffb0 values were detected in shoots from limed plants than in those from unlimed plants in samples clipped within 15 days of the end of pulse labelling. Analysis of the aboveground plant production corresponding to the 4\uffe2\uff80\uff90year period of liming indicated that the standing biomass was higher in plots that received lime. Lower \uffce\uffb413C\uffe2\uff80\uffb0 values in limed roots compared with unlimed roots were found, whereas no significant difference was detected between soil samples. Extrapolation of our results indicated that more C has been lost through the soil than has been gained via photosynthetic assimilation because of pasture liming in Scotland during the period 1990\uffe2\uff80\uff931998. However, the uncertainty associated with such extrapolation based on this single study is high and these estimates are provided only to set our findings in the broader context of national soil carbon emissions.
", "keywords": ["2. Zero hunger", "/dk/atira/pure/subjectarea/asjc/2300/2306", "name=Global and Planetary Change", "/dk/atira/pure/subjectarea/asjc/2300/2304", "550", "rhizosphere soil", "liming", "04 agricultural and veterinary sciences", "15. Life on land", "630", "upland grassland", "name=Environmental Chemistry", "carbon pools", "name=Ecology", "0401 agriculture", " forestry", " and fisheries", "name=General Environmental Science", "carbon turnover", "/dk/atira/pure/subjectarea/asjc/2300/2303", "13C", "/dk/atira/pure/subjectarea/asjc/2300/2300"]}, "links": [{"href": "https://doi.org/10.1111/j.1365-2486.2004.00883.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.1365-2486.2004.00883.x", "name": "item", "description": "10.1111/j.1365-2486.2004.00883.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1365-2486.2004.00883.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-12-01T00:00:00Z"}}, {"id": "10.1890/es13-00281.1", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-30T16:20:47Z", "type": "Journal Article", "created": "2014-06-19", "title": "Long-Term Experimental Warming And Nutrient Additions Increase Productivity In Tall Deciduous Shrub Tundra", "description": "Warming Arctic temperatures can drive changes in vegetation structure and function directly by stimulating plant growth or indirectly by stimulating microbial decomposition of organic matter and releasing more nutrients for plant uptake and growth. The arctic biome is currently increasing in deciduous shrub cover and this increase is expected to continue with climate warming. However, little is known how current deciduous shrub communities will respond to future climate induced warming and nutrient increase. We examined the plant and ecosystem response to a long\uffe2\uff80\uff90term (18 years) nutrient addition and warming experiment in an Alaskan arctic tall deciduous shrub tundra ecosystem to understand controls over plant productivity and carbon (C) and nitrogen (N) storage in shrub tundra ecosystems. In addition, we used a meta\uffe2\uff80\uff90analysis approach to compare the treatment effect size for aboveground biomass among seven long\uffe2\uff80\uff90term studies conducted across multiple plant community types within the Arctic. We found that biomass, productivity, and aboveground N pools increased with nutrient additions and warming, while species diversity decreased. Both nutrient additions and warming caused the dominant functional group, deciduous shrubs, to increase biomass and proportional C and N allocation to aboveground stems but decreased allocation to belowground stems. For all response variables except soil C and N pools, effects of nutrients plus warming were largest. Soil C and N pools were highly variable and we could not detect any response to the treatments. The biomass response to warming and fertilization in tall deciduous shrub tundra was greater than moist acidic and moist non\uffe2\uff80\uff90acidic tundra and more similar to the biomass response of wet sedge tundra. Our data suggest that in a warmer and more nutrient\uffe2\uff80\uff90rich Arctic, tall deciduous shrub tundra will have greater total deciduous shrub biomass and a higher proportion of woody tissue that has a longer residence time, with a lower proportion of C and N allocated to belowground stems.
", "keywords": ["580", "0106 biological sciences", "Nitrogen pools", "Carbon pools", "15. Life on land", "01 natural sciences", "Deciduous shrubs", "Meta-analysis", "Arctic", "Manipulated warming", "13. Climate action", "11. Sustainability", "Climate change", "Nutrient additions", "Tundra", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1890/es13-00281.1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosphere", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1890/es13-00281.1", "name": "item", "description": "10.1890/es13-00281.1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1890/es13-00281.1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-06-01T00:00:00Z"}}, {"id": "10.5061/dryad.ht76hdrp8", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-05-30T16:22:28Z", "type": "Dataset", "created": "2024-06-07", "title": "Total data for global pattern of organic carbon pools in forest soil", "description": "unspecified# Total _data [https://doi.org/10.5061/dryad.ht76hdrp8](https://doi.org/10.5061/dryad.ht76hdrp8) ## Description of the data and file structure Abbreviations and the units of the variables in the dataset (Total_data.xlsx) Filling these empty cells in the data file will interfere with a script used to analyze the data, it is necessary to leave these cells empty. MAT: mean annual temperature(C); MAP: mean annual precipitation(mm); PET: potential evapotranspiration; AI: Aridity Index,MAP/PET; Soil_order: USDA; NPP, gC/m\u00b2/year; Elevation: Altitude,(m); Forest type: Conifer, Broadleaf, mixed Tree; age, years Soil type: Soil order according to USDA; BD, bulk density,(g.cm-3); Sand,Silt,Clay, SC(Silt+Clay) (%); Fe,Al. Total Fe/Al,(g\u00b7kg-1soil); Fed. Ald: free Fe and Al oxides.(g kg-1soil); dithionite extractable Fe; Feo, Alo: amorphous Fe and Al oxides (g\u00b7kg-1soil); oxalate extractable Fe and Al; Fed-Feo: crystalline iron (Fed-Feo); Fep,Alp:organically-complexed Fe and Al (gkg-1soil), pyrophosphate extractable Fe and Al; CEC.Cation exchange capacity (cmol kg-1 Soil) pH; O-C/N/P, Organic layer,(g kg-1); SOC,TN,TP,(g-kg-1); CN,ratio of SOC to TN; POC, MOC(gkg-1soil); MOC/SOC (%); POCf, MOCf(gkg-1 fraction) DOC,(mg kg-1); LOC, Labile organic C,g/kg soil; ROC, recalcitrant organic C.g/kg soil; SOCt, measured values from various depth at < 30 cm down to 30 cm by using regression equations of the total SOC content with soil depth as described in Hansen et al. (2023); Soil depth, topsoil, (cm), TBF:Temperate broadleaf forests;TCF:Temperate conifer forests;TMF:Temperate mixed conifer-broadleaf forests SBF:Subtropical broadleaf forests;SCF:Subtropical conifer forests;SMF:Subtropical mixed conifer-broadleaf forests TrBF:Temperate broadleaf forests; MBF:Mediterranean broadleaf forests;MCF:Mediterranean conifer forests;MMF:Mediterranean mixed conifer-broadleaf for AGBC,The plant aboveground standing biomass C,Mg Cha-1; BGBC,belowground standing biomass C,Mg C ha-1 NPP,gC/m2/year normalised difference vegetation index (NDVI) enhanced vegetationindex (EVD). ## Code/Software All statistical analyses were performed in R 4.2.3 software (R Development Core Team, 2022) the R codes (R_code.txt) used to generate the results and figures reported in this study are available in supplementary materials of the paper.", "keywords": ["carbon pools", "clay minerals", "climate and vegetation effects", "FOS: Biological sciences", "soil organic matter", "forest ecosystems"], "contacts": [{"organization": "Zhang, Yuxue, Guo, Xiaowei, Chen, Longxue, Kuzyakov, Yakov, Wang, Ruzhen, Zhang, Haiyang, Han, Xingguo, Jiang, Yong, Sun, Osbert,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.ht76hdrp8"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.ht76hdrp8", "name": "item", "description": "10.5061/dryad.ht76hdrp8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.ht76hdrp8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-06-22T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Carbon+pools&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=Carbon+pools&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=Carbon+pools&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=Carbon+pools&offset=7", "hreflang": "en-US"}], "numberMatched": 7, "numberReturned": 7, "distributedFeatures": [], "timeStamp": "2026-05-31T02:08:04.240787Z"}