The study of different natural carbon sinks has become especially important because of climate change effects. The restoration of contaminated areas can be an ideal strategy for carbon sequestration. The studied area was affected by toxic Aznalc\uffc3\uffb3llar mine spill in 1998. Restoration process of the contaminated area was based, mainly, on the use of two organic amendments: leonardite (LE) and biosolid compost (BC). The objective of this study was to verify whether the application of these amendments promotes the long\uffe2\uff80\uff90term carbon sequestration in this soil. Five treatments were established: untreated control, biosolid compost (doses 4 and 2) and leonardite (doses 4 and 2). The addition of amendments implied an improvement in soil quality that was directly related to the amendment dose: decrease in bulk density, increase in pH, higher respiration rates and an improvement in the stratification ratio. Dose\uffe2\uff80\uff90dependent changes in the molecular composition of soil organic matter were shown by nuclear magnetic resonance analysis. Both amendments promoted carbon retention, although because of the low mineralization rates of soil organic matter in LE treatments, the carbon storage was higher. The dosage effect on the carbon balance was more important in LE treatments, whereas in the BC treatments, the balance was similar for both doses. Our findings suggest that LE4 significantly increased the total organic carbon and it was the most suitable treatment for long\uffe2\uff80\uff90term carbon storage, because of its molecular composition rich in relatively stable aromatic and lignin\uffe2\uff80\uff90derived compounds. Copyright \uffc2\uffa9 2015 John Wiley & Sons, Ltd.
", "keywords": ["2. Zero hunger", "570", "trace element contaminated soil", "13C NMR", "[SDV]Life Sciences [q-bio]", "Trace element contaminated soil", "leonardite", "04 agricultural and veterinary sciences", "15. Life on land", "Biosolid compost", "6. Clean water", "[SDV] Life Sciences [q-bio]", "13. Climate action", "biosolid compost", "C sequestration", "0401 agriculture", " forestry", " and fisheries", "C-13 NMR", "Leonardite"]}, "links": [{"href": "https://doi.org/10.1002/ldr.2466"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Land%20Degradation%20%26amp%3B%20Development", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1002/ldr.2466", "name": "item", "description": "10.1002/ldr.2466", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1002/ldr.2466"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-12-29T00:00:00Z"}}, {"id": "10.1007/s003740050494", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:29Z", "type": "Journal Article", "created": "2002-08-25", "title": "Soil Organic Matter Dynamics After The Conversion Of Arable Land To Pasture", "description": "Conversion of arable land (maize) to pasture will affect the soil organic matter (SOM) content. Changes in the SOM content were studied using a size- and density-fractionation method and C-13 analysis. Twenty-six years of maize cropping had resulted in a depletion of carbon stored in the macro-organic fractions (>150 mu m) and an increase in the 250 mu m), light (b.d. 150 mu m) and light (b.d. 150 mu m; b.d. >1.13 g cm(-3)) in the 0- to 20-cm layer was still 40-50% lower than in the continuous pasture plots. Average half-life times calculated from C-13 analyses ranged from 7 years in the light fractions to 56 years in heavy fractions. Fractionation results and C-13 data indicated that mechanical disturbance (plowing) during maize cropping had resulted in vertical displacement of dispersed soil carbon from the 0- to 20-cm layer down to 60-80 cm. Conversion of arable land to pasture, therefore, not only causes a regeneration of the soil carbon content, it also reduces the risk of contaminant transport by dispersed soil carbon.
", "keywords": ["land use change", "DECOMPOSITION", "2. Zero hunger", "C-13 analyses", "04 agricultural and veterinary sciences", "15. Life on land", "maize", "Maize", "C-13 NATURAL-ABUNDANCE", "CULTIVATION", "pasture", "13C analyses", "VERTISOLS", "SIZE", "SYSTEMS", "Pasture", "0401 agriculture", " forestry", " and fisheries", "Organic matter", "Fractionation", "fractionation", "Land use change", "CARBON TURNOVER", "FRACTIONS", "organic matter", "STORAGE"], "contacts": [{"organization": "R\u00f6mkens, P.F.A.M., van der Plicht, J., Hassink, J.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s003740050494"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biology%20and%20Fertility%20of%20Soils", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s003740050494", "name": "item", "description": "10.1007/s003740050494", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s003740050494"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1999-01-01T00:00:00Z"}}, {"id": "10.1007/s10021-009-9252-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:35Z", "type": "Journal Article", "created": "2009-05-04", "title": "Sheep Grazing Decreases Organic Carbon And Nitrogen Pools In The Patagonian Steppe: Combination Of Direct And Indirect Effects", "description": "We explored the net effects of grazing on soil C and N pools in a Patagonian shrub\u2013grass steppe (temperate South America). Net effects result from the combination of direct impacts of grazing on biogeochemical characteristics of microsites with indirect effects on relative cover of vegetated and unvegetated microsites. Within five independent areas, we sampled surface soils in sites subjected to three grazing intensities: (1) ungrazed sites inside grazing exclosures, (2) moderately grazed sites adjacent to them, and (3) intensely grazed sites within the same paddock. Grazing significantly reduced soil C and N pools, although this pattern was clearest in intensely grazed sites. This net effect was due to the combination of a direct reduction of soil N content in bare soil patches, and indirect effects mediated by the increase of the cover of bare soil microsites, with lower C and N content than either grass or shrub microsites. This increase in bare soil cover was accompanied by a reduction in cover of preferred grass species and standing dead material. Finally, stable isotope signatures varied significantly among grazed and ungrazed sites, with \u03b415N and \u03b413C significantly depleted in intensely grazed sites, suggesting reduced mineralization with increased grazing intensity. In the Patagonian steppe, grazing appears to exert a negative effect on soil C and N cycles; sound management practices must incorporate the importance of species shifts within life form, and the critical role of standing dead material in maintaining soil C and N stocks and biogeochemical processes.", "keywords": ["0106 biological sciences", "2. Zero hunger", "ARGENTINA", "SEMIARID ECOSYSTEMS", "STABLE ISOTOPES", "DESERTIFICATION", "\u039413C", "SHRUB-GRASS STEPPE", "04 agricultural and veterinary sciences", "15. Life on land", "BIOGEOCHEMISTRY", "Δ13C", "01 natural sciences", "LIFE FORMS", "https://purl.org/becyt/ford/4.5", "13. Climate action", "0401 agriculture", " forestry", " and fisheries", "https://purl.org/becyt/ford/4", "\u03b415N"]}, "links": [{"href": "https://doi.org/10.1007/s10021-009-9252-6"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10021-009-9252-6", "name": "item", "description": "10.1007/s10021-009-9252-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-009-9252-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-05-05T00:00:00Z"}}, {"id": "10.1007/s10021-015-9868-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:36Z", "type": "Journal Article", "created": "2015-04-03", "title": "Soil Microbes Compete Strongly With Plants For Soil Inorganic And Amino Acid Nitrogen In A Semiarid Grassland Exposed To Elevated Co2 And Warming", "description": "Free amino acids (FAAs) in soil are an important N source for plants, and abundances are predicted to shift under altered atmospheric conditions such as elevated CO2. Composition, plant uptake capacity, and plant and microbial use of FAAs relative to inorganic N forms were investigated in a temperate semiarid grassland exposed to experimental warming and free-air CO2 enrichment. FAA uptake by two dominant grassland plants, Bouteloua gracilis and Artemesia frigida, was determined in hydroponic culture. B. gracilis and microbial N preferences were then investigated in experimental field plots using isotopically labeled FAA and inorganic N sources. Alanine and phenylalanine concentrations were the highest in the field, and B. gracilis and A. frigida rapidly consumed these FAAs in hydroponic experiments. However, B. gracilis assimilated little isotopically labeled alanine, ammonium and nitrate in the field. Rather, soil microbes immobilized the majority of all three N forms. Elevated CO2 and warming did not affect plant or microbial uptake. FAAs are not direct sources of N for B. gracilis, and soil microbes outcompete this grass for organic and inorganic N when N is at peak demand within temperate semiarid grasslands.", "keywords": ["580", "2. Zero hunger", "amino acids", "570", "15N", "grasslands", "carbon dioxide", "04 agricultural and veterinary sciences", "15. Life on land", "global warming", "soil microbiology", "nitrogen", "630", "6. Clean water", "nitrogen uptake", "13. Climate action", "XXXXXX - Unknown", "0401 agriculture", " forestry", " and fisheries", "13C", "global change"]}, "links": [{"href": "https://doi.org/10.1007/s10021-015-9868-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10021-015-9868-7", "name": "item", "description": "10.1007/s10021-015-9868-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-015-9868-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-04-02T00:00:00Z"}}, {"id": "10.1007/s10533-010-9489-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:44Z", "type": "Journal Article", "created": "2010-06-16", "title": "Belowground Heathland Responses After 2\u00a0Years Of Combined Warming, Elevated Co2 And Summer Drought", "description": "Terrestrial ecosystems are exposed to atmospheric and climatic changes including increases in atmospheric CO2 concentration, temperature and alterations of precipitation patterns, which are predicted to continue with consequences for ecosystem services and functioning in the future. In a field scale experiment on temperate heathland, manipulation of precipitation and temperature was performed with retractable curtains, and atmospheric CO2 concentration was increased by FACE. The combination of elevated CO2 and warming was expected to affect belowground processes additively, through increased belowground sequestration of labile carbohydrates due to elevated CO2 in combination with temperature increased process rates. Together, these changes might increase microbial activity and availability of plant nutrients. Two years after the start of the experiment, belowground processes responded significantly to the treatments. In the combined temperature and CO2 treatment the dissolved organic nitrogen concentration decreased and the ammonium concentration increased, but this release of nutrients was not mirrored by plant parameters. Microbial biomass carbon and microbial enrichment with 13C and 15N (1\u00a0year after 13C 2 15 N-glycine was injected into the soil) increased in warmed plots and in elevated CO2 plots, but not when these treatments were combined. Furthermore, drought led to an increase in Calluna biomass and total plant nitrogen pool. The full combination of warming, elevated CO2 and periodic drought did not unambiguously express the ecosystem responses of single factors additively, which complicates predictions of ecosystem responses to multifactor climate change.", "keywords": ["0106 biological sciences", "2. Zero hunger", "BRIC", "15N isotope dilution", "04 agricultural and veterinary sciences", "15. Life on land", "Temperature heath", "01 natural sciences", "/dk/atira/pure/core/keywords/Bric", "6. Clean water", "Plant nutrients", "13. Climate action", "Microbial carbon", "Microbial turnover", "Climate change", "0401 agriculture", " forestry", " and fisheries", "13C"]}, "links": [{"href": "https://doi.org/10.1007/s10533-010-9489-3"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biogeochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10533-010-9489-3", "name": "item", "description": "10.1007/s10533-010-9489-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10533-010-9489-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-06-17T00:00:00Z"}}, {"id": "10.1007/s10725-021-00781-x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:50Z", "type": "Journal Article", "created": "2021-11-26", "title": "Drought priming alleviated salinity stress and improved water use efficiency of wheat plants", "description": "Global warming and salinization are inducing adverse efects on crop yield. Drought priming has been proved to improve drought tolerance of plants at later growth stages, however, whether and how drought priming at early growth stage alleviating salinity stress at later growth stage and improving water use efciency (WUE) of plants remains unknown. Therefore, two wheat cultivars were subjected to drought priming at the 4th and 6th leaf stage and subsequent moderate salinity stress at 100 mmol NaCl applied at the later jointing growth stage. The growth, physiological responses, ABA signaling and WUE were investigated to unravel the regulating mechanisms of drought priming on subsequent salinity stress. The results showed that drought priming imposed at the early growth stage improved the leaf and root water potential while attenuated the ABA concentration in the leaves ([ABA]leaf) for the primed plants, which increased the stomatal conductance (gs) and photosynthesis (Pn). Consequently, the biomass under the salinity stress was signifcantly increased due to earlier drought priming. Moreover, drought priming improved the specifc leaf N content due to the facilitated root growth and morphology, and this could beneft high leaf photosynthetic capacity during the salinity stress period, improving the Pn and water uptake for the primed plants. Drought priming signifcantly improved plant level WUE (WUEp) due to considerably enhanced dry biomass compared with non-primed plants under subsequent salinity stress. The signifcantly increased leaf \u03b413C under drought priming further demonstrated that the improved leaf \u03b413C and WUEp was mainly ascribed to the improvement of Pn. Drought primed plants signifcantly improved K+ concentration and maintained the K+/Na+ ratio compared with non-primed plants under subsequent salinity stress, which could mitigate the adverse efects of excess Na+ and minimize salt-induced ionic toxicity by improving salt tolerance for primed plants. Therefore, drought priming at early growth stage could be considered as a promising strategy for salt-prone areas to optimize agricultural sustainability and food security under changing climatic conditions.", "keywords": ["Triticum aestivum L", "0106 biological sciences", "0301 basic medicine", "2. Zero hunger", "Water stress", "15. Life on land", "01 natural sciences", "Salinity tolerance", "Hormones", "6. Clean water", "03 medical and health sciences", "ABA", "13. Climate action", "\u03b413C"]}, "links": [{"href": "https://doi.org/10.1007/s10725-021-00781-x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Growth%20Regulation", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10725-021-00781-x", "name": "item", "description": "10.1007/s10725-021-00781-x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10725-021-00781-x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-11-26T00:00:00Z"}}, {"id": "10.1007/s10705-010-9377-1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:48Z", "type": "Journal Article", "created": "2010-06-03", "title": "Quality Of Soil Organic Matter And C Storage As Influenced By Cropping Systems In Northwestern Alberta, Canada", "description": "Crop rotations and reduction in tillage are commonly recommended for sustained crop production and enhancing soil quality. Our objective was to evaluate the long-term effects of cropping systems (1968\u20131992) on soil structure, carbon storage and the quality of soil organic matter. The study was conducted on a silt clay loam soil (Typic Cryoboralf) near Beaverlodge, Alberta, The cropping systems were: (a) continuous barley (Hordeum vulgare L.) (CB); (b) continuous bromegrass (Bromus inermiss Leyess.) (CG); (c) continuous forage legume (Medicago sativa L. until 1977, and Trifolium pratense L. since 1978) (CL); and (d) 3\u00a0years of bromegrass-legume forage alternating with 3\u00a0years of barley (RF). Our data showed that the CG and CL treatments had more stable aggregates with greater mean weight diameter (MWD) than soil under continuous barley. Organic C, total N and the light fraction in soil under CG and CL were higher than those of the other two treatments. Soil under CG had the highest and CB the lowest amounts of acid-hydrolyzable monosacchrides (comprising glucose, arabinose, xylose, mannose and galactose). Higher galactose\u00a0+\u00a0mannose concentration in soil under CG indicated a higher soil microbiological activity. Microbial biomass C and N followed the trend among treatments in whole and light fraction organic matter, and total extracted sugars. Soil organic matter 13C-NMR spectroscopy showed that: (i) soil under CB contained the highest amounts of aromatic and the lowest content of aliphatic-C, (ii) soil under CL had the lowest phenolic-C and the least aromaticity, and (iii) soil under CG and RF had the highest amounts of aliphatic-C which includes labile substances such as amino acids and carbohydrates, indicating an improvement in the quality of organic matter. It is concluded that perennial forage crops can improve soil structure and soil organic matter quality and quantity as compared with cereal monoculture.", "keywords": ["2. Zero hunger", "Aggregation", "13C-NMR spectroscopy", "Carbon storage", "Carbohydrates", "Microbial biomass", "Light fraction organic matter", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"], "contacts": [{"organization": "Arshad, M. A., Soon, Y. K., Ripmeester, J. A,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s10705-010-9377-1"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Nutrient%20Cycling%20in%20Agroecosystems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10705-010-9377-1", "name": "item", "description": "10.1007/s10705-010-9377-1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10705-010-9377-1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-06-04T00:00:00Z"}}, {"id": "10.1007/s11104-009-9939-7", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:55Z", "type": "Journal Article", "created": "2009-03-05", "title": "Soil Carbon Dynamics Following Afforestation Of A Tropical Savannah With Eucalyptus In Congo", "description": "Soil organic matter is a key factor in the global carbon cycle, but the magnitude and the direction of the change in soil carbon after afforestation with Eucalyptus in the tropics is still a matter of controversy. The objective of this work was to understand the dynamics of soil carbon in intensively managed Eucalyptus plantations after the afforestation of a native savannah. The isotopic composition (\u03b4) of soil carbon (C) and soil CO2 efflux (F) were measured on a four-age chronosequence of Eucalyptus and on an adjacent savannah. \u03b4 F was used to partition F between a C3 component and a C4 component, the latter corresponding to the decomposition of a labile pool of savannah-derived soil carbon (C SL). The mean residence time of CSL was 4.6\u00a0years. This further allowed us to partition the savannah-derived soil carbon into a labile and a stable (C SS) carbon pool. C SL accounted for 30% of soil carbon in the top soil of the savannah (0\u20135\u00a0cm), and only 12% when the entire 0\u201345\u00a0cm soil layer was considered. The decrease in C SL with time after plantation was more than compensated by an increase in Eucalyptus-derived carbon, and half of the newly incorporated Eucalyptus-derived carbon in the top soil was associated with the clay and fine silt fractions in the 14-year-old. stand. Increment in soil carbon after afforestation of tropical savannah with Eucalyptus is therefore expected despite a rapid disappearance of the labile savannah-derived carbon because a large fraction of savannah-derived carbon is stable.", "keywords": ["P33 - Chimie et physique du sol", "0106 biological sciences", "570", "550", "SAVANNAH", "SEQUESTRATION", "ORGANIC-MATTER DYNAMICS", "01 natural sciences", "630", "zone tropicale", "PLANTATION", "[SDV.BV]Life Sciences [q-bio]/Vegetal Biology", "EUCALYPTUS", "[SDV.BV] Life Sciences [q-bio]/Vegetal Biology", "sol tropical", "savane", "http://aims.fao.org/aos/agrovoc/c_1301", "13C", "TROPICAL PLANTATION", "http://aims.fao.org/aos/agrovoc/c_3048", "CHANGEMENT D'USAGE DES TERRES", "http://aims.fao.org/aos/agrovoc/c_35657", "Eucalyptus", "http://aims.fao.org/aos/agrovoc/c_162", "CO2 EFFLUX", "FRACTIONATION", "http://aims.fao.org/aos/agrovoc/c_1811", "LAND-USE CHANGE", "04 agricultural and veterinary sciences", "CHRONOSEQUENCE", "15. Life on land", "plantation foresti\u00e8re", "K10 - Production foresti\u00e8re", "NATURAL C-13 ABUNDANCE", "TEMPERATE FOREST", "RESPIRATION", "http://aims.fao.org/aos/agrovoc/c_7978", "http://aims.fao.org/aos/agrovoc/c_7979", "http://aims.fao.org/aos/agrovoc/c_6825", "extension foresti\u00e8re", "0401 agriculture", " forestry", " and fisheries", "TURNOVER", "carbone", "SOIL CARBON", "plantations", "http://aims.fao.org/aos/agrovoc/c_5990", "mati\u00e8re organique du sol", "http://aims.fao.org/aos/agrovoc/c_2683"]}, "links": [{"href": "https://doi.org/10.1007/s11104-009-9939-7"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-009-9939-7", "name": "item", "description": "10.1007/s11104-009-9939-7", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-009-9939-7"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-03-06T00:00:00Z"}}, {"id": "10.1007/s11104-015-2556-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:14:59Z", "type": "Journal Article", "created": "2015-06-15", "title": "Land Use Change Decreases Soil Carbon Stocks In Tibetan Grasslands", "description": "\u00a9 2015, Springer International Publishing Switzerland. Backgrounds and aims: Land use is an important factor affecting soil organic carbon (SOC) dynamics and can produce positive C climate feedback, but its effects remain unknown for Tibetan ecosystems. Methods: Recent land use changes have converted the traditional winter Kobresia pastures of nomads in the northeastern Tibetan Plateau to Elymus pastures or even to cropland. Detailed SOC measurements up to 30-cm depth were combined with analysis of \u03b413C, \u03b415N, bulk density, microbial C, and N contents in three land use types. Results: Bulk density was decreased by conversion from Kobresia pasture to cropland but increased by conversion to Elymus pasture. The loss of 1\u00a0% of SOC caused by land use change leads to \u03b413C increase of 0.8 \u2030. Conversion to cropland significantly decreased SOC stocks (10\u00a0%) and microbial biomass C, but the C loss (1.6\u00a0%) was insignificant in Elymus pasture. Land use changes strongly increased soil \u03b415N in the top 5\u00a0cm. Conclusions: Conversion to Elymus pasture did not change the C stocks, but conversion to cropland decreased C stocks by 10\u00a0% within 10\u00a0years. Soil \u03b413C and \u03b415N data indicate acceleration of C and N cycling due to the replacement of Kobresia pasture by Elymus pasture and cropland.", "keywords": ["2. Zero hunger", "Soil organic carbon", "13. Climate action", "\u03b413C", "Pasture", "0401 agriculture", " forestry", " and fisheries", "Cropland", "Alpine meadow", "04 agricultural and veterinary sciences", "Total nitrogen", "15. Life on land", "\u03b415N"]}, "links": [{"href": "https://doi.org/10.1007/s11104-015-2556-8"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20and%20Soil", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11104-015-2556-8", "name": "item", "description": "10.1007/s11104-015-2556-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-015-2556-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-06-16T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2013.04.101", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:16:37Z", "type": "Journal Article", "created": "2013-05-27", "title": "Turnover Of Organic Carbon And Nitrogen In Soil Assessed From \u039413c And \u039415n Changes Under Pasture And Cropping Practices And Estimates Of Greenhouse Gas Emissions", "description": "The continuing clearance of native vegetation for pasture, and especially cropping, is a concern due to declines in soil organic C (SOC) and N, deteriorating soil health, and adverse environment impact such as increased emissions of major greenhouse gases (CO2, N2O and CH4). There is a need to quantify the rates of SOC and N budget changes, and the impact on greenhouse gas emissions from land use change in semi-arid subtropical regions where such data are scarce, so as to assist in developing appropriate management practices. We quantified the turnover rate of SOC from changes in \u03b4(13)C following the conversion of C3 native vegetation to C4 perennial pasture and mixed C3/C4 cereal cropping (wheat/sorghum), as well as \u03b4(15)N changes following the conversion of legume native vegetation to non-legume systems over 23 years. Perennial pasture (Cenchrus ciliaris cv. Biloela) maintained SOC but lost total N by more than 20% in the top 0-0.3m depth of soil, resulting in reduced animal productivity from the grazed pasture. Annual cropping depleted both SOC and total soil N by 34% and 38%, respectively, and resulted in decreasing cereal crop yields. Most of these losses of SOC and total N occurred from the >250 \u03bcm fraction of soil. Moreover, this fraction had almost a magnitude higher turnover rates than the 250-53 \u03bcm and <53 \u03bcm fractions. Loss of SOC during the cropping period contributed two-orders of magnitude more CO2-e to the atmosphere than the pasture system. Even then, the pasture system is not considered as a benchmark of agricultural sustainability because of its decreasing productivity in this semi-arid subtropical environment. Introduction of legumes (for N2 fixation) into perennial pastures may arrest the productivity decline of this system. Restoration of SOC in the cropped system will require land use change to perennial ecosystems such as legume-grass pastures or native vegetation.", "keywords": ["2. Zero hunger", "04 agricultural and veterinary sciences", "15. Life on land", "2311 Waste Management and Disposal", "12. Responsible consumption", "Greenhouse gases", "2305 Environmental Engineering", "13. Climate action", "2304 Environmental Chemistry", "2310 Pollution", "11. Sustainability", "\u03b413C", "0401 agriculture", " forestry", " and fisheries", "C turnover", "\u03b415N"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2013.04.101"}, {"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.2013.04.101", "name": "item", "description": "10.1016/j.scitotenv.2013.04.101", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2013.04.101"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2009.01.009", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:16:15Z", "type": "Journal Article", "created": "2009-02-08", "title": "Effects Of Organic And Inorganic Amendments On Soil Organic Matter Properties", "description": "article i nfo The aim of this work was to investigate the effects of long-term application of different organic fertilizers (sewage sludge, farmyard manure, compost) as compared to mineral fertilizer on the structure of the soil organic matter. Capillary electrophoresis was employed for the quantification of monosaccharides and phenolic compounds, whereas NMR and FT-IR were used for the overall characterization of the soils organic matter. Application of farmyard manure results in a higher content of organic matter derived from angiosperms, suggested by the higher levels of syringic and vanillic phenols. Spectroscopic studies show an increase of lignin and lignin-like products in the organic matter of the soil, which may be derived from the cereal straw supplied with farmyard manure. According to spectroscopic analysis, 13 C CPMAS-NMR and FT-IR spectra, higher contents of methylene groups (- CH2) from proteins and protein-like compounds, as well as higher levels of carbohydrates, were found in the soil supplied with compost. The monosaccharide (rhamnose, xylose, glucose, mannose, arabinose, fucose and galactose) content was not significantly influenced by the different organic fertilizers, suggesting that the type of amendment used does not affect any of these six studied monomers. Comparing the three organic amendments the most significant differences were observed after long-term application of farmyard manure, with an increase in lignin and lignin-like products in the soil organic matter, and compost, which appears to contribute to an increase of protein and protein-like, as well as carbohydrates content on soil organic matter. The knowledge of such changes can be essential to understand the sorption and bioavailability of pollutants, as well as establish/ unestablish ways to recycling organic residues as organic fertilizers.", "keywords": ["Organic matter characterization", "FT-IR", "2. Zero hunger", "CZE", "13C NMR", "Phenols", "13. Climate action", "Soil amendment", "Monosaccharide", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2009.01.009"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2009.01.009", "name": "item", "description": "10.1016/j.geoderma.2009.01.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2009.01.009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2009-04-01T00:00:00Z"}}, {"id": "10.1046/j.1365-2486.2003.00598.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:17:44Z", "type": "Journal Article", "created": "2003-05-06", "title": "Soil Organic Matter Biochemistry And Potential Susceptibility To Climatic Change Across The Forest-Tundra Ecotone In The Fennoscandian Mountains", "description": "AbstractWe studied soil organic carbon (C) chemistry at the mountain birch forest\uffe2\uff80\uff90tundra ecotone in three regions of the Fennoscandian mountain range with comparable vegetation cover but contrasting degrees of continentality and latitude. The aim of the study was to identify functional compound classes and their relationships to decomposition and spatial variation across the ecotone and latitudinal gradient. Solid\uffe2\uff80\uff90state 13C nuclear magnetic resonance (CPMAS 13C NMR) was used to identify seven functional groups of soil organic C: alkyls, N\uffe2\uff80\uff90alkyls, O\uffe2\uff80\uff90alkyls, acetals, aromatics, phenolics and carboxyls. N\uffe2\uff80\uff90alkyls, O\uffe2\uff80\uff90alkyls and acetals are generally considered labile substrates for a large number of saprotrophic fungi and bacteria, whilst phenolics and aromatics are mainly decomposed by lignolytic organisms and contribute to the formation of soil organic matter together with aliphatic alkyls and carboxyls. All soils contained a similar proportional distribution of functional groups, although relatively high amounts of N\uffe2\uff80\uff90alkyls, O\uffe2\uff80\uff90alkyls and acetals were present in comparison to earlier published studies, suggesting that large amounts of soil C were potentially vulnerable to microbial degradation. Soil organic matter composition was different at the most southerly site (Dovrefjell, Norway), compared with the two more northerly sites (Abisko, Sweden, and Joatka, Norway), with higher concentrations of aromatics and phenolics, as well as pronounced differences in alkyl concentrations between forest and tundra soils. Clear differences between mountain birch forest and tundra heath soil was noted, with generally higher concentrations of labile carbon present in tundra soils. We conclude that, although mesic soils around the forest\uffe2\uff80\uff90tundra ecotone in Fennoscandia are a potential source of C to the atmosphere in a changing environment, the response is likely to vary between comparable ecosystems in relation to latitude and continentality as well as soil properties especially soil nitrogen content and pH.
", "keywords": ["570", "decomposition", "550", "Fennoscandia", "Mass Import - autoclassified (may be erroneous)", "04 agricultural and veterinary sciences", "910", "15. Life on land", "Chemistry", "Soil", "ecotone", "13. Climate action", "soil organic matter", "CPMAS 13C NMR", "Climate change", "0401 agriculture", " forestry", " and fisheries"]}, "links": [{"href": "https://doi.org/10.1046/j.1365-2486.2003.00598.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": "10.1046/j.1365-2486.2003.00598.x", "name": "item", "description": "10.1046/j.1365-2486.2003.00598.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1046/j.1365-2486.2003.00598.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-05-01T00:00:00Z"}}, {"id": "10.1016/j.still.2006.11.005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:16:59Z", "type": "Journal Article", "created": "2007-01-04", "title": "Tillage Effect On C Stocks Of A Clayey Oxisol Under A Soybean-Based Crop Rotation In The Brazilian Cerrado Region", "description": "Abstract A large area (180\u00a0Mha) of central Brazil is occupied by a savanna biome known as the Cerrado. Annual rainfall in this region varies from 1200 to 2000\u00a0mm, although there is a long (\u223c5 month) dry season with almost no rain. This region is regarded by Brazilians as their agricultural frontier and there is a steady growth in the area dedicated to permanent cropping in the region, which today is estimated to occupy 14\u00a0Mha. Owing to the dearth of long-term experiments, the impact of continuous cropping on soil carbon stocks remains unclear. The objective of this study was to evaluate the effects of different tillage systems (zero till (ZT) and conventional tillage (CT)) on the change in soil carbon stocks over a 20-year period of the same crop sequence compared to that under a neighbouring area of native vegetation (NV). Only approximately 10\u00a0Mg\u00a0ha\u22121 of soil carbon in the 0\u2013100\u00a0cm depth interval was lost under continuous ZT. However, under CT systems losses were greater (up to 30\u00a0Mg\u00a0C\u00a0ha\u22121) when the mouldboard plough was used and/or tillage was performed twice a year. We did not have access to instrumentation to accurately assess soil charcoal but the C/N data and peroxide and dichromate oxidative techniques suggested that \u223c40% of soil C was in this form. The 13C natural abundance of soil profiles indicated that residues of crops (maize) and the spontaneous annual fallow of Brachiaria spp. resulted in integration of significant C4 residues to a depth of at least 40\u00a0cm. It would appear that zero tillage, which is already widely adopted in the Cerrado region of Brazil, will have only a small negative long-term impact on soil C stocks, but ploughing, especially more than once a year, will lead to considerably larger soil C losses.", "keywords": ["2. Zero hunger", "Soil organic matter", "04 agricultural and veterinary sciences", "15. Life on land", "Cerrado region", "Zero tillage", "Charcoal", "Disc plough", "Mouldboard plough", "0401 agriculture", " forestry", " and fisheries", "Soil carbon accumulation", "13C", "Soybean", "Brazil"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2006.11.005"}, {"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.2006.11.005", "name": "item", "description": "10.1016/j.still.2006.11.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2006.11.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-09-01T00:00:00Z"}}, {"id": "10.1016/j.still.2013.07.007", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:17:04Z", "type": "Journal Article", "created": "2013-08-08", "title": "Effects Of Agricultural Management On Chemical And Biochemical Properties Of A Semiarid Soil From Central Spain", "description": "Open AccessPeer reviewed", "keywords": ["2. Zero hunger", "\uf064 15N", "fallow", "N stock", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "6. Clean water", "C stocks", "0401 agriculture", " forestry", " and fisheries", "\uf064 13C", "soil enzymes", "tillage systems", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2013.07.007"}, {"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.2013.07.007", "name": "item", "description": "10.1016/j.still.2013.07.007", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2013.07.007"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-01T00:00:00Z"}}, {"id": "10.1093/ismeco/ycae116", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:18:11Z", "type": "Journal Article", "created": "2024-10-08", "title": "Land use effects on soil microbiome composition and traits with consequences for soil carbon cycling", "description": "AbstractThe soil microbiome determines the fate of plant-fixed carbon. The shifts in soil properties caused by land use change leads to modifications in microbiome function, resulting in either loss or gain of soil organic carbon (SOC). Soil pH is the primary factor regulating microbiome characteristics leading to distinct pathways of microbial carbon cycling, but the underlying mechanisms remain understudied. Here, the taxa-trait relationships behind the variable fate of SOC were investigated using metaproteomics, metabarcoding, and a 13C-labeled litter decomposition experiment across two temperate sites with differing soil pH each with a paired land use intensity contrast. 13C incorporation into microbial biomass increased with land use intensification in low-pH soil but decreased in high-pH soil, with potential impact on carbon use efficiency in opposing directions. Reduction in biosynthesis traits was due to increased abundance of proteins linked to resource acquisition and stress tolerance. These trait trade-offs were underpinned by land use intensification-induced changes in dominant taxa with distinct traits. We observed divergent pH-controlled pathways of SOC cycling. In low-pH soil, land use intensification alleviates microbial abiotic stress resulting in increased biomass production but promotes decomposition and SOC loss. In contrast, in high-pH soil, land use intensification increases microbial physiological constraints and decreases biomass production, leading to reduced necromass build-up and SOC stabilization. We demonstrate how microbial biomass production and respiration dynamics and therefore carbon use efficiency can be decoupled from SOC highlighting the need for its careful consideration in managing SOC storage for soil health and climate change mitigation.Carbon (C) assimilation can be severely impaired during periods of environmental stress, like drought or defoliation, making trees heavily dependent on the use of C reserve pools for survival; yet, the dynamics of reserve use during periods of reduced C supply are still poorly understood. We used stem girdling in mature poplar trees (Populus tremula L. hybrids), a lipid-storing species, to permanently interrupt the phloem C transport and induced C shortage in the isolated stem section below the girdle and monitored metabolic activity during three campaigns in the growing seasons of 2018, 2019 and 2021. We measured respiratory fluxes (CO2 and O2), non-structural carbon concentration, the respiratory substrate (based on isotopic analysis and CO2/O2 ratio) and the age of the respiratory substrate (based on radiocarbon analysis). Our study shows that poplar trees can survive long periods of reduced C supply from the canopy by switching in metabolism from recent carbohydrates to older storage pools with a potential mixture of respiratory substrates, including lipids. This mechanism of stress resilience can explain why tree decline may take many years before death occurs.
Grasslands face more frequent and extreme droughts; yet, their responses to increasing drought intensity are poorly understood. Increasing drought intensity likely triggers abrupt shifts (thresholds) in grassland ecosystem functioning which can implicate recovery trajectories.
Here, we determined how drought intensity affects plant productivity, and plant\uffe2\uff80\uff93soil carbon (C) and nitrogen (N) cycling. We exposed model grassland plant communities with contrasting resource acquisition strategies (a fast\uffe2\uff80\uff90 vs a slow\uffe2\uff80\uff90strategy plant community), to a gradient of drought intensity. The drought gradient ranged from well\uffe2\uff80\uff90watered to severely water\uffe2\uff80\uff90limited conditions. We identified thresholds of plant community productivity (above\uffe2\uff80\uff90ground biomass) at peak drought and 2\uffe2\uff80\uff89months after re\uffe2\uff80\uff90wetting, and measured net ecosystem exchange and ecosystem respiration of C\uffc2\uffa0throughout the drought and recovery phases. At peak drought and 1\uffe2\uff80\uff89week after re\uffe2\uff80\uff90wetting, we traced recently acquired C from plants to the soil and into microbial biomass and fatty acids using 13C pulse labelling, and measured plant and soil N.
At peak drought, slow\uffe2\uff80\uff90strategy plant communities were more drought resistant than fast\uffe2\uff80\uff90strategy communities, as the threshold in plant productivity occurred at a higher drought intensity for the slow\uffe2\uff80\uff90 than the fast\uffe2\uff80\uff90strategy community. Shortly after re\uffe2\uff80\uff90wetting, microbial uptake of recent plant\uffe2\uff80\uff90assimilated C increased with increasing past drought intensity, coinciding with an increase in soil N availability and leaf N. Threshold responses to drought intensity at peak drought translated into non\uffe2\uff80\uff90linear recovery responses, with greater compensatory growth in the fast\uffe2\uff80\uff90strategy community. At peak drought, increasing drought intensity reduced C uptake and increased relative C partitioning to leaves and microbial biomass. Upon re\uffe2\uff80\uff90wetting, plant community strategy mediated drought intensity effects on plant and soil C and N dynamics and plant recovery trajectories. The fast\uffe2\uff80\uff90strategy community recovered quickly, with higher leaf N than the slow community, while the slow community increased C allocation to microbial biomass.
Synthesis. Our findings highlight that C and N dynamics in the plant\uffe2\uff80\uff93soil system display non\uffe2\uff80\uff90linear responses to increasing drought intensity both during and after drought, which has implications for plant community recovery trajectories.
Global soil carbon (C) stocks account for approximately three times that found in the atmosphere. In the Aso mountain region of Southern Japan, seminatural grasslands have been maintained by annual harvests and/or burning for more than 1000\uffc2\uffa0years. Quantification of soil C stocks and C sequestration rates in Aso mountain ecosystem is needed to make well\uffe2\uff80\uff90informed, land\uffe2\uff80\uff90use decisions to maximize C sinks while minimizing C emissions. Soil cores were collected from six sites within 200\uffc2\uffa0km2 (767\uffe2\uff80\uff93937\uffc2\uffa0m asl.) from the surface down to the k\uffe2\uff80\uff90Ah layer established 7300\uffc2\uffa0years ago by a volcanic eruption. The biological sources of the C stored in the Aso mountain ecosystem were investigated by combining C content at a number of sampling depths with age (using 14C dating) and \uffce\uffb413C isotopic fractionation. Quantification of plant phytoliths at several depths was used to make basic reconstructions of past vegetation and was linked with C\uffe2\uff80\uff90sequestration rates. The mean total C stock of all six sites was 232\uffc2\uffa0Mg C\uffc2\uffa0ha\uffe2\uff88\uff921 (28\uffe2\uff80\uff93417\uffc2\uffa0Mg C\uffc2\uffa0ha\uffe2\uff88\uff921), which equates to a soil C sequestration rate of 32\uffc2\uffa0kg C\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921 over 7300\uffc2\uffa0years. Mean soil C sequestration rates over 34, 50 and 100\uffc2\uffa0years were estimated by an equation regressing soil C sequestration rate against soil C accumulation interval, which was modeled to be 618, 483 and 332\uffc2\uffa0kg C ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921, respectively. Such data allows for a deeper understanding in how much C could be sequestered in Miscanthus grasslands at different time scales. In Aso, tribe Andropogoneae (especially Miscanthus and Schizoachyrium genera) and tribe Paniceae contributed between 64% and 100% of soil C based on \uffce\uffb413C abundance. We conclude that the seminatural, C4\uffe2\uff80\uff90dominated grassland system serves as an important C sink, and worthy of future conservation.", "keywords": ["470", "2. Zero hunger", "plant phytolith", "04 agricultural and veterinary sciences", "15. Life on land", "Poaceae", "Miscanthus sinensis", "soil 14C dating", "Carbon", "6. Clean water", "Soil", "soil carbon sequestration", "Japan", "13. Climate action", "\u03b413C", "0401 agriculture", " forestry", " and fisheries", "C4 plant"]}, "links": [{"href": "https://doi.org/10.1111/gcb.12189"}, {"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.12189", "name": "item", "description": "10.1111/gcb.12189", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.12189"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-04-03T00:00:00Z"}}, {"id": "10.1111/gcb.14935", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:18:31Z", "type": "Journal Article", "created": "2020-01-20", "title": "Origin of volatile organic compound emissions from subarctic tundra under global warming", "description": "AbstractWarming occurs in the Arctic twice as fast as the global average, which in turn leads to a large enhancement in terpenoid emissions from vegetation. Volatile terpenoids are the main class of biogenic volatile organic compounds (VOCs) that play crucial roles in atmospheric chemistry and climate. However, the biochemical mechanisms behind the temperature\uffe2\uff80\uff90dependent increase in VOC emissions from subarctic ecosystems are largely unexplored. Using 13CO2\uffe2\uff80\uff90labeling, we studied the origin of VOCs and the carbon (C) allocation under global warming in the soil\uffe2\uff80\uff93plant\uffe2\uff80\uff93atmosphere system of contrasting subarctic heath tundra vegetation communities characterized by dwarf shrubs of the genera Salix or Betula. The projected temperature rise of the subarctic summer by 5\uffc2\uffb0C was realistically simulated in sophisticated climate chambers. VOC emissions strongly depended on the plant species composition of the heath tundra. Warming caused increased VOC emissions and significant changes in the pattern of volatiles toward more reactive hydrocarbons. The 13C was incorporated to varying degrees in different monoterpene and sesquiterpene isomers. We found that de novo monoterpene biosynthesis contributed to 40%\uffe2\uff80\uff9344% (Salix) and 60%\uffe2\uff80\uff9368% (Betula) of total monoterpene emissions under the current climate, and that warming increased the contribution to 50%\uffe2\uff80\uff9358% (Salix) and 87%\uffe2\uff80\uff9395% (Betula). Analyses of above\uffe2\uff80\uff90 and belowground 12/13C showed shifts of C allocation in the plant\uffe2\uff80\uff93soil systems and negative effects of warming on C sequestration by lowering net ecosystem exchange of CO2 and increasing C loss as VOCs. This comprehensive analysis provides the scientific basis for mechanistically understanding the processes controlling terpenoid emissions, required for modeling VOC emissions from terrestrial ecosystems and predicting the future chemistry of the arctic atmosphere. By changing the chemical composition and loads of VOCs into the atmosphere, the current data indicate that global warming in the Arctic may have implications for regional and global climate and for the delicate tundra ecosystems.
", "keywords": ["0301 basic medicine", "volatile organic compound", "Volatile Organic Compounds", "0303 health sciences", "tundra", "net ecosystem exchange", "Arctic Regions", "15. Life on land", "global warming", "Primary Research Articles", "Global Warming", "13co2 ; Arctic ; Climate Change ; De Novo Biosynthesis ; Global Warming ; Net Ecosystem Exchange ; Subarctic Heath ; Terpene ; Tundra ; Volatile Organic Compound", "03 medical and health sciences", "Arctic", "climate change", "de novo biosynthesis", "subarctic heath", "13. Climate action", "(CO2)-C-13", "11. Sustainability", "terpene", "Tundra", "Ecosystem"]}, "links": [{"href": "https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.14935"}, {"href": "https://doi.org/10.1111/gcb.14935"}, {"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.14935", "name": "item", "description": "10.1111/gcb.14935", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/gcb.14935"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-20T00:00:00Z"}}, {"id": "10.1111/j.1365-2486.2004.00883.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:18:38Z", "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": "10.1111/j.1469-8137.2010.03613.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:18:48Z", "type": "Journal Article", "created": "2011-01-19", "title": "Drought Alters Carbon Fluxes In Alpine Snowbed Ecosystems Through Contrasting Impacts On Graminoids And Forbs", "description": "\u2022 Climate change is predicted to increase the frequency of drought events in alpine ecosystems with the potential to affect carbon turnover. \u2022 We removed intact turfs from a Nardus stricta alpine snowbed community and subjected half of them to two drought events of 8 d duration under controlled conditions. Leachate dissolved organic carbon (DOC) was measured throughout the 6 wk study period, and a (13)CO(2) pulse enabled quantification of fluxes of recent assimilate into shoots, roots and leachate and ecosystem CO(2) exchange. \u2022 The amount of DOC in leachate from droughted cores was 62% less than in controls. Drought reduced graminoid biomass, increased forb biomass, had no effect on bryophytes, and led to an overall decrease in total above-ground biomass compared with controls. Net CO(2) exchange, gross photosynthesis and the amount of (13)CO(2) fixed were all significantly less in droughted turfs. These turfs also retained proportionally more (13)C in shoots, allocated less (13)C to roots, and the amount of dissolved organic (13)C recovered in leachate was 57% less than in controls. \u2022 Our data show that drought events can have significant impacts on ecosystem carbon fluxes, and that the principal mechanism behind this is probably changes in the relative abundance of forbs and grasses.", "keywords": ["0106 biological sciences", "leachate", "Carbon Isotopes", "Nardus stricta", "04 agricultural and veterinary sciences", "Plants", "15. Life on land", "net CO2 exchange", "dissolved organic carbon", "01 natural sciences", "plant diversity", "Carbon", "6. Clean water", "Droughts", "climate change", "13. Climate action", "Snow", "13CO(2)", "0401 agriculture", " forestry", " and fisheries", "Biomass", "Organic Chemicals", "Ecosystem"]}, "links": [{"href": "https://doi.org/10.1111/j.1469-8137.2010.03613.x"}, {"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/j.1469-8137.2010.03613.x", "name": "item", "description": "10.1111/j.1469-8137.2010.03613.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1469-8137.2010.03613.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-01-19T00:00:00Z"}}, {"id": "10.1111/j.1475-2743.2004.tb00363.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:18:49Z", "type": "Journal Article", "created": "2010-08-05", "title": "Effect Of A Legume Cover Crop (Mucuna Pruriens Var. Utilis) On Soil Carbon In An Ultisol Under Maize Cultivation In Southern Benin", "description": "Abstract. Long term fallow is no longer possible in densely populated tropical areas, but legume cover crops can help maintain soil fertility. Our work aimed to study changes in soil carbon in a sandy loam Ultisol in Benin, which involved a 12\uffe2\uff80\uff90year experiment on three maize cropping systems under manual tillage: traditional no\uffe2\uff80\uff90input cultivation (T), mineral fertilized cultivation (NPK), and association with Mucuna pruriens (M). The origin of soil carbon was also determined through the natural abundance of soil and biomass 13C. In T, NPK and M changes in soil carbon at 0\uffe2\uff80\uff9340 cm were \uffe2\uff88\uff920.2, +0.2 and +1.3 t C ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921, with residue carbon amounting to 3.5, 6.4 and 10.0 t C ha\uffe2\uff88\uff921 yr\uffe2\uff88\uff921, respectively. After 12 years of experimentation, carbon originating from maize in litter\uffe2\uff80\uff90plus\uffe2\uff80\uff90soil (0\uffe2\uff80\uff9340 cm) represented less than 4% of both total carbon and overall maize residue carbon. In contrast, carbon originating from mucuna in litter\uffe2\uff80\uff90plus\uffe2\uff80\uff90soil represented more than 50% of both total carbon and overall mucuna residue carbon in M, possibly due to accelerated mineralization of native soil carbon (priming effect) and slow mulch decomposition. Carbon originating from weeds in litter\uffe2\uff80\uff90plus\uffe2\uff80\uff90soil represented c. 10% of both total carbon and overall weed residue carbon in T and NPK. Thus mucuna mulch was very effective in promoting carbon sequestration in the soil studied.
", "keywords": ["Soil nutrients", "Carbon sequestration", "13C natural abundance", "[SDE] Environmental Sciences", "Soil management", "http://aims.fao.org/aos/agrovoc/c_7170", "Npk", "SOL CULTIVE", "F08 - Syst\u00e8mes et modes de culture", "Soil fertility", "Zea mays", "http://aims.fao.org/aos/agrovoc/c_875", "630", "plante de couverture", "Legume cover crops", "Benin", "http://aims.fao.org/aos/agrovoc/c_1301", "legume cover crop", "Mucuna pruriens", "http://aims.fao.org/aos/agrovoc/c_4971", "ANALYSE STATISTIQUE", "580", "LEGUMINEUSE TROPICALE", "Acrisol", "2. Zero hunger", "Tropical zones", "mucuna", "BIOMASSE", "http://aims.fao.org/aos/agrovoc/c_1936", "P35 - Fertilit\u00e9 du sol", "Green manure crops", "RESIDU VEGETAL", "http://aims.fao.org/aos/agrovoc/c_101", "04 agricultural and veterinary sciences", "15. Life on land", "Mucuna", "Soil carbon", "CARBONE ORGANIQUE", "soil organic carbon", "STOCK ORGANIQUE", "fertilit\u00e9 du sol", "MAIS", "http://aims.fao.org/aos/agrovoc/c_8504", "Farm/Enterprise Scale", "[SDE]Environmental Sciences", "FERTILISATION DU SOL", "0401 agriculture", " forestry", " and fisheries", "carbone"]}, "links": [{"href": "https://doi.org/10.1111/j.1475-2743.2004.tb00363.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Use%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1475-2743.2004.tb00363.x", "name": "item", "description": "10.1111/j.1475-2743.2004.tb00363.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1475-2743.2004.tb00363.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-06-01T00:00:00Z"}}, {"id": "10.1111/j.1757-1707.2012.01160.x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:18:53Z", "type": "Journal Article", "created": "2012-02-27", "title": "Carbon Sequestration In Soil In A Semi-Natural Miscanthus Sinensis Grassland And Cryptomeria Japonica Forest Plantation In Aso, Kumamoto, Japan", "description": "AbstractAlthough Miscanthus sinensis grasslands (Misc\uffe2\uff80\uff90GL) and Cryptomeria japonica forest plantations (Cryp\uffe2\uff80\uff90FP) are proposed bioenergy feedstock systems, their relative capacity to sequester C may be an important factor in determining their potential for sustainable bioenergy production. Therefore, our objective was to quantify changes in soil C sequestration 47\uffc2\uffa0years after a Misc\uffe2\uff80\uff90GL was converted to a Cryp\uffe2\uff80\uff90FP. The study was conducted on adjacent Misc\uffe2\uff80\uff90GL and Cryp\uffe2\uff80\uff90FP located on Mt. Aso, Kumamoto, Japan. After Cryp\uffe2\uff80\uff90FP establishment, only the Misc\uffe2\uff80\uff90GL continued to be managed by annual burning every March. Mass C and N, \uffce\uffb413C, and \uffce\uffb415N at 0\uffe2\uff80\uff9330\uffc2\uffa0cm depth were measured in 5\uffc2\uffa0cm increments. Carbon and N concentrations, C:N ratio, \uffce\uffb413C, and \uffce\uffb415N were measured in litter and/or ash, and rhizomes or roots. Although C input in Misc\uffe2\uff80\uff90GL by M. sinensis was approximately 36% of that in Cryp\uffe2\uff80\uff90FP by C. japonica, mean annual soil C sequestration in Misc\uffe2\uff80\uff90GL (503\uffc2\uffa0kg\uffc2\uffa0C\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921) was higher than that in Cryp\uffe2\uff80\uff90FP (284\uffc2\uffa0kg\uffc2\uffa0C\uffc2\uffa0ha\uffe2\uff88\uff921\uffc2\uffa0yr\uffe2\uff88\uff921). This was likely the result of larger C input from aboveground litter to soil, C\uffe2\uff80\uff90quality (C:N ratio and lignin concentration in aboveground litter) and possibly more recalcitrant C (charcoal) inputs by annual burning. The difference in soil \uffce\uffb415N between sites indicated that organic C with N had greater cycling between heterotrophic microbes and soil and produces more recalcitrant humus in Misc\uffe2\uff80\uff90GL than in Cryp\uffe2\uff80\uff90FP. Our data indicate that in terms of soil C sequestration, maintenance of Misc\uffe2\uff80\uff90GL may be more advantageous than conversion to Cryp\uffe2\uff80\uff90FP in Aso, Japan.
", "keywords": ["470", "2. Zero hunger", "\u03b413C", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "carbon sequestration", "Cryptomeria japonica", "Miscanthus sinensis", "7. Clean energy", "\u03b415N", "soil"]}, "links": [{"href": "https://doi.org/10.1111/j.1757-1707.2012.01160.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/GCB%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1757-1707.2012.01160.x", "name": "item", "description": "10.1111/j.1757-1707.2012.01160.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1757-1707.2012.01160.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-02-27T00:00:00Z"}}, {"id": "10.1590/s0103-90162008000300009", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:19:34Z", "type": "Journal Article", "created": "2008-07-10", "title": "Changes In Soil Organic Matter Under Different Land Management In Misiones Province (Argentina)", "description": "Highly weathered tropical soils rapidly loose soil organic matter (SOM) and may be affected by water erosion and soil compaction after deforestation and intensive cultivation. With the main objective to estimate the SOM balances in a subtropical soil we determined the dynamics of SOM in a degraded yerba mate (Ilex paraguaiensis Saint Hil.) plantation introduced after deforestation and with elephant grass (Pennisetum purpureum L.) as a cover crop. The study site was in Misiones, Argentina, and we use the natural 13C abundance methodology and a descriptive model. The study was conducted on three contiguous 50 x 100 m plots of a typic Kandihumult soil with: (i) native forest, (ii) 50 years of continuous yerba mate monoculture with intensive tillage, and (iii) yerba mate associated with elephant grass as a cover crop and no tillage. We determined bulk density, carbon (C), nitrogen (N) and 13C content of the soil (0 - 0.05, 0.05 - 0.15 m layers) and the grass biomass. Yerba mate monoculture reduced soil C and N content as well as porosity at 0 - 0.15 m depth by 43 and 23%, respectively, as compared to the native forest. After ten years of yerba mate - elephant grass association soil C and N contents at the same depth increased by 19 and 12%, respectively, compared to the yerba mate monoculture, while soil porosity remained similar. Total C input,13C, and soil organic C were incorporated into a three compartment model to evaluate elephant grass C dynamics. Through the natural 13C abundance methodology we tracked the elephant grass C incorporation and the 'old' soil C loss, and determined the model parameters - humification (k1) and mineralization (k) coefficients and stable C (Cs)- unambiguously. The high k1 and k predicted by the model are probably explained by elephant grass root system incorporation under no tillage and humid subtropical climate, respectively. In soil under yerba mate monoculture, Cs was counted as 91% of the total soil organic C.
", "keywords": ["2. Zero hunger", "Ilex paraguaiensis;Pennisetum purpureum;natural C-13 abundance;soil carbon;modelling", "sol", "550", "carbono do solo", "[SDV]Life Sciences [q-bio]", "argentine", "culture intensive", "04 agricultural and veterinary sciences", "15. Life on land", "630", "[SDV] Life Sciences [q-bio]", "Pennisetum purpureum", "modelling", "Ilex paraguaiensis", "natural C-13 abundance", "mati\u00e8re organique", "modeliza\u00e7\u00e3o", "biomasse", "0401 agriculture", " forestry", " and fisheries", "soil carbon", "am\u00e9rique du sud", "abund\u00e2ncia natural em 13C", "natural 13C abundance"], "contacts": [{"organization": "Piccolo, Gabriel Agust\u00edn, Andriulo, Adri\u00e1n Enrique, Mary, Bruno,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1590/s0103-90162008000300009"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientia%20Agricola", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1590/s0103-90162008000300009", "name": "item", "description": "10.1590/s0103-90162008000300009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1590/s0103-90162008000300009"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-01-01T00:00:00Z"}}, {"id": "10.1594/pangaea.960025", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:19:35Z", "type": "Dataset", "title": "Analysis of the high density coarse fraction (HDC) from the nearshore zone of Herschel Island (Yukon, Canada)", "keywords": ["14C AMS", "MICADAS accelerator mass spectrometer AMS", "Elemental analyzer (EA)", " Thermo Scientific", " FlashEA 1112", "Fraction modern carbon", "Permafrost", "Quantachrome", "Age", " dated", "Surface area analyzer", " Quantachrome", " Nova 4200e; 6-point Brunauer\u2013Emmett\u2013Teller (BET) method according to Brunauer et al. (1938)", "Arctic", "Elemental analyzer EA", "Isotope ratio mass spectrometry-elemental analyzer (IRMS-EA)", " Thermo Finnigan", " Delta XP; Elemental analyzer (EA)", " Thermo Scientific", " FlashEA 1112", "Thermo Scientific", "Calculated", "Carbon Nitrogen ratio", "Carbon", " organic", " loading", "total", "Laboratory code label", "Minerals", "Multiple investigations", "Laboratory code/label", "Ionplus according to McIntyre et al 2017 and Haghipour et al 2018", "Minerals", " surface area", "error", "loading", "Nitrogen", " total", "Earth System Research", "\u03b413C", "FlashEA 1112", "Isotope ratio mass spectrometry elemental analyzer IRMS EA", "Nitrogen", "organic", "\u039414C", "MICADAS accelerator mass spectrometer (AMS)", " Ionplus; according to McIntyre et al. (2017) and Haghipour et al. (2018)", "Surface area analyzer", "dated", "Age", "Delta XP Elemental analyzer EA", "Organic carbon", "Comment", "surface area", "Carbon", "Carbon/Nitrogen ratio", "relative", "Thermo Finnigan", "sediment", "Sample ID", "Age", " 14C AMS", "Biomarkers", "Nova 4200e 6 point Brunauer Emmett Teller BET method according to Brunauer et al 1938", "Carbon", " organic", " total", "Fraction modern carbon", " error", " relative"]}, "links": [{"href": "https://doi.org/10.1594/pangaea.960025"}, {"rel": "self", "type": "application/geo+json", "title": "10.1594/pangaea.960025", "name": "item", "description": "10.1594/pangaea.960025", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1594/pangaea.960025"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-01T00:00:00Z"}}, {"id": "10.1594/pangaea.972409", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:19:36Z", "type": "Dataset", "title": "Organic carbon content, stable carbon isotope ratios, and lignin phenol fingerprint of terrestrial material deposited at the paleo-delta of the Lena River at the transition to the Preboreal", "description": "The dataset was used to reconstruct the release of permafrost organic carbon from the watershed of the Lena River (Russia) between 11.1 and 11.7 calibrated thousand years Before Present (cal. kyr BP, Present = 1950 AD) and to model potential methane emissions from this carbon source. Data were obtained analyzing plant debris isolated from the low density fraction (<1.8 g/cm3) of muddy sediments from the Piston Core 23 (PC23). The sediment core was retrieved in July 2014 in the mid/outer-shelf of the Laptev Sea shelf (76\u00b0 10' 15.6''N; 129\u00b0 20' 13.2''E, water depth of 56 m) during Leg 1 of the SWERUS-C3 expedition (Swedish-Russian-U.S. Arctic Ocean \u2013 Investigation of Climate-Cryosphere-Carbon interactions). Measurement of total organic carbon (TOC) and stable (d\u00b9\u00b3C) carbon isotopes were performed on 0.3 to 0.7 mg of samples on February 2022 using a Thermo DeltaQ isotope-ratio mass spectrometer (IRMS) coupled to a Thermo Flash 2000 Elemental Analyzer via a ConFlo IV interface at the at the Institute of Polar Sciences from the National Research Council of Italy (Bologna Section, Italy). The methodology for sample preparation followed Nieuwenhuize et al. (1994). Data on biomarkers (lignin phenols) were obtained extracting 2 to 3 mg of samples using a Microwave Accelerated Reaction System (MARS) 5 from CEM and following the methodology from Go\u00f1i & Montgomery (2000). The extracts were analysed using a Agilent 7890A gas chromatograph (GC) coupled to an Agilent 5975C mass spectrometer to identify and quantify the compounds of interest. Biomarkers extraction and analyses were carried out on March 2022 in the organic chemistry laboratories of the Ente Nazionale Idrocarburi (ENI)-National Research Council (CNR) of Italy Joint Research Center 'Aldo Pontremoli' (Lecce, Italy). Stable isotope ratios and biomarkers were used to gain insights on the main vegetation source of the plant debris and (biomarkers only) to investigate the degradation state of the terrestrial material.", "keywords": ["5 dihydroxybenzoic acid per unit mass organic carbon", "p Coumaric acid per unit mass organic carbon", "SWERUS C3", "p-Hydroxybenzaldehyde per unit mass organic carbon", "Permafrost", "p Hydroxybenzaldehyde per unit mass organic carbon", "Latitude of event", "Arctic", "Gas chromatography (GC", " Agilent 7890A) equipped with a mass selective detector (MSD", " Agilent 5975C) and a flame ionization detector (FID", " Agilent 7683B)", "p-Hydroxybenzoic acid per unit mass organic carbon", "p-Hydroxyacetophenone/p-hydroxyl phenols ratio", "bottom maximum", "top min", "total", "Sample code/label", "p-Coumaric acid per unit mass organic carbon", "Vanillic acid vanillin ratio", "Deglaciation", "p-Hydroxyl phenols/vanillyl phenols ratio", "Depth", " sediment/rock", " bottom/maximum", "Syringic acid per unit mass organic carbon", "p-Hydroxyl phenols per unit mass organic carbon", "Sample code label", "p Hydroxyl phenols per unit mass organic carbon", "Depth", " top/min", "Acetovanillone per unit mass organic carbon", "Vanillic acid per unit mass organic carbon", "p Hydroxybenzoic acid per unit mass organic carbon", "p Hydroxyacetophenone per unit mass organic carbon", "Vanillic acid/vanillin ratio", "sediment rock", "p Hydroxyl phenols vanillyl phenols ratio", "Syringyl phenols vanillyl phenols ratio", "Earth System Research", "\u03b413C", "Ferulic acid per unit mass organic carbon", "Syringaldehyde per unit mass organic carbon", "Vanillin per unit mass organic carbon", "Methane", "Piston corer", "Isotope ratio mass spectrometer", " Thermo", " DeltaQ; coupled to an Elemental Analyzer; Thermo Flash 2000 via a ConFlo IV", "Longitude of event", "Syringyl phenols per unit mass organic carbon", "organic", "Syringic acid/syringaldehyde ratio", "Cinnamyl phenols/vanillyl phenols ratio", "DEPTH", " sediment/rock", "5 dihydroxybenzoic acid vanillyl phenols ratio", "Oden", "Cinnamyl phenols vanillyl phenols ratio", "Agilent 7683B", "p-Hydroxyacetophenone per unit mass organic carbon", "Date/Time of event", "Acetosyringone per unit mass organic carbon", "3", "5-dihydroxybenzoic acid per unit mass organic carbon", "Depth", "Event label", "Date Time of event", "p Hydroxyacetophenone p hydroxyl phenols ratio", "Vanillyl phenols per unit mass organic carbon", "Elevation of event", "Syringyl phenols/vanillyl phenols ratio", "Agilent 5975C and a flame ionization detector FID", "Carbon", "Cinnamyl phenols per unit mass organic carbon", "Agilent 7890A equipped with a mass selective detector MSD", "DEPTH", "Syringic acid syringaldehyde ratio", "3", "5-dihydroxybenzoic acid/vanillyl phenols ratio", "Gas chromatography GC", "Thermo", "SWERUS-C3", "Isotope ratio mass spectrometer", "DeltaQ coupled to an Elemental Analyzer Thermo Flash 2000 via a ConFlo IV", "Carbon", " organic", " total"], "contacts": [{"organization": "Sabino, Mathia, Gustafsson, \u00d6rjan, Wild, Birgit, Semiletov, Igor P, Dudarev, Oleg V, Ingrosso, Gianmarco, Tesi, Tommaso,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1594/pangaea.972409"}, {"rel": "self", "type": "application/geo+json", "title": "10.1594/pangaea.972409", "name": "item", "description": "10.1594/pangaea.972409", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1594/pangaea.972409"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-01-01T00:00:00Z"}}, {"id": "10.5061/dryad.5x69p8dbf", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:21:10Z", "type": "Dataset", "created": "2024-01-24", "title": "Data from: Warming reduces priming effect of soil organic carbon decomposition along a subtropical elevation gradient", "description": "unspecified# Data from: Warming reduces priming effect of soil organic carbon decomposition along a subtropical elevation gradient [https://doi.org/10.5061/dryad.5x69p8dbf](https://doi.org/10.5061/dryad.5x69p8dbf) The dataset includes glucose-, lignin- and SOC-derived CO2-C production, priming effects, soil properties, and microbial communities measured across all treatments. ## Description of the data and file structure Methodological Information * Methods of data collection/generation: see article for details * Geographic locations of data collection: Wuyishan Mountain, Fujian, China Description of the data and file structure * This dataset has one EXCEL. xlsx file with 22 sheets supporting the figures in the article. * Description of the treatment There are six treatments in this dataset: Control, glucose addition, lignin addition, warming, glucose addition + warming, and lignin addition + warming treatment *For abbreviations of variables in the sheet named Figure 1a | Abbreviation | Description | Units | | :-------------- | :----------------------------------- | :----------- | | MAT | Mean annual temperature | \u2103 | | Glucose | Glucose addition treatment | mg g-1 soil | | Glucose+Warming | Glucose addition + warming treatment | mg g-1 soil | | Lignin | Lginin addition treatment | mg g-1 soil | | Lignin +Warming | Lignin addition +warming treatment | mg g-1 soil | *For abbreviations of variables in the sheet named Figure 1b | Abbreviation | Description | units | | :-------------- | :----------------------------------- | :------- | | MAT | Mean annual temperature | \u2103 | | Glucose | Glucose addition treatment | unitless | | Glucose+Warming | Glucose addition + warming treatment | unitless | | Lignin | Lignin addition treatment | unitless | | Lignin +Warming | Lignin addition +warming treatment | unitless | *For abbreviations of variables in the sheet named Figure 1c, data for substrate-derived CO2 | Abbreviation | Description | units | | :-------------- | :----------------------------------- | :----------- | | MAT | Mean annual temperature | \u2103 | | Glucose | Glucose addition treatment | mg g-1 soil | | Glucose+Warming | Glucose addition + warming treatment | mg g-1 soil | | Lignin | Lignin addition treatment | mg g-1 soil | | Lignin +Warming | Lignin addition +warming treatment | mg g-1 soil | *For abbreviations of variables in the sheet named Figure 1d, data for substrate-derived PLFAs | Abbreviation | Description | units | | :-------------- | :----------------------------------- | :----------- | | MAT | Mean annual temperature | \u2103 | | Glucose | Glucose addition treatment | ug g-1 soil | | Glucose+Warming | Glucose addition + warming treatment | ug g-1 soil | | Lignin | Glucose addition treatment | ug g-1 soil | | Lignin+Warming | Lignin addition + warming treatment | ug g-1 soil | *For abbreviations of variables in the sheet named Figure 2a and Figure 2b | Abbreviation | Description | units | | :--------------- | :----------------------------------- | :------- | | MAT | Mean annual temperature | \u2103 | | No addition | Without substrate addition treatment | unitless | | Glucose addition | With glucose addition treatment | unitless | | Lignin addition | With lignin addition treatment | unitless | Note:\u00a0Q10 is the temperature sensitivity of SOC or substrates mineralization unitless *For abbreviations of variables in the sheet named Figure 3a, Figure 3b, Figure 3c, Figure 3d, Figure 3e, and Figure 3f | Abbreviation | Description | units | | :--------------- | :----------------------------------- | :---- | | MAT | Mean annual temperature | \u2103 | | No addition | Without substrate addition treatment | % | | Glucose addition | With glucose addition treatment | % | | Lignin addition | With lginin addition treatment | % | Note: Warming effect size means the effect of warming on microbial biomass *For abbreviations of variables in the sheet named Figure 4a, Figure 4b, Figure 4c, Figure 4d and Figure 4e | Abbreviation | Description | units | | :-------------- | :----------------------------------- | :------- | | Glucose | Glucose addition treatment | unitless | | Glucose+Warming | Glucose addition + warming treatment | unitless | | Lignin | Glucose addition treatment | unitless | | Lignin+Warming | Lignin addition + warming treatment | unitless | Note: Response ratio means the ratio of a variable in glucose or lignin addition without or with warming to that in the corresponding unamended control at ambient temperature or warming temperature *For abbreviations of variables in the sheet named Figure 5a and Figure 5b | Abbreviation | Description | units | | :----------- | :------------------------------------------------------------------------------------------- | :--------------- | | MAT | Mean annual temperature | \u2103 | | RR | The ratio of a variable in glucose or lignin addition treatment to that in unamended control | unitless | | \u0394RR | The RR ratio under warming treatment minus that under ambient treatment | unitless | | PE(Glucose) | Priming effect induced by glucose addition treatment | unitless | | PE(Lignin) | Priming effect induced by lignin addition treatment | unitless | | PE(total) | Priming effect induced by glucose or lignin addition treatment | unitless | | \u0394PE(Glucose) | The effect of warming on priming effect induced by glucose addition | unitless | | \u0394PE(Lignin) | The effect of warming on priming effect induced by lignin addition | unitless | | \u0394PE(total) | The effect of warming on priming effect induced by glucose or lignin addition | unitless | | SOC | Soil organic carbon | g kg-1 | | Labile C | Labile pool carbon | g kg-1 | | Stable C | Stable pool carbon | g kg-1 | | TN | Soil total nitrogen | g kg-1 | | C:N ratio | The ratio of soil organic carbon to soil total nitrogen | unitless | | qCO2 | Microbial metabolic quotient | mg C g-1 MBC h-1 | | Total PLFAs | Phospholipid fatty acids | nmol g-1 soil | | F:B ratio | The ratio of fungi to bacteria | unitless | | DOC | Dissolved organic carbon | mg kg-1 | *For abbreviations of variables in the sheet named Figure 6a, Figure 6b and Figure 6c | Abbreviation | Description | units | | :---------------- | :--------------------------------------------------------------------------- | :---- | | PE _Glucase | Warming effect on Glucose-induced priming effect | % | | PE _Lignin | Warming effect on Lignin induced priming effect | % | | Bacteria 13C-PLFA | Warming effect on Substrate-derived bacteria phospholipid fatty acids | % | | Fungi 13C-PLFA | Warming effect on Substrate-derived fungi phospholipid fatty acids | % | | Total 13C-PLFAs | Warming effect on Substrate-derived total microbial phospholipid fatty acids | % | ## Code/Software All statistical analyses were performed using the SPSS software version 21.0 for Windows and R (v4.1.0).", "keywords": ["13C-PLFA", "FOS: Earth and related environmental sciences", "Microbial carbon use efficiency", "priming effects", "substrate quality", "temperature gradient"], "contacts": [{"organization": "Li, Xiaojie, Lyu, Maokui, Zhang, Qiufang, Feng, Jiguang, Liu, Xiaofei, Zhu, Biao, Wang, Xiaohong, Yang, Yusheng, Xie, Jinsheng,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.5x69p8dbf"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.5x69p8dbf", "name": "item", "description": "10.5061/dryad.5x69p8dbf", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.5x69p8dbf"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-05-21T00:00:00Z"}}, {"id": "10.5061/dryad.b4s71jj", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:21:12Z", "type": "Dataset", "title": "Data from: Litter carbon and nutrient chemistry control the magnitude of soil priming effect", "description": "unspecifiedLitter Chem_characteristicsThis Excel document includes the raw data for analysed in the manuscript including leaf litter C leachates, lignin, cellulose, hemicellulose, tannin, C, N, P, Ca, K, Mg, Mn concentrations and Lignin:N, and litter decomposition rates and soil priming effect.Litter Chem\uff0cDeco & PE.xls", "keywords": ["13C natural abundance", "soil organic carbon", "carbon mineralization", "soil priming effect", "litter chemistry", "15. Life on land", "C4 soil"], "contacts": [{"organization": "Chao, Lin, Liu, Yanyan, Freschet, Gr\u00e9goire, Zhang, Weidong, Yu, Xin, Zheng, Wenhui, Guan, Xin, Yang, Qingpeng, Chen, Longchi, Dijkstra, Feike, wang, Silong, Dijkstra, Feike A.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.b4s71jj"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.b4s71jj", "name": "item", "description": "10.5061/dryad.b4s71jj", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.b4s71jj"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-09T00:00:00Z"}}, {"id": "10.2136/sssaj1997.03615995006100040012x", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:20:02Z", "type": "Journal Article", "created": "2010-07-27", "title": "Carbon Isotope Ratios Of Great Plains Soils And In Wheat-Fallow Systems", "description": "AbstractThe purposes of this study were to improve knowledge of regional vegetation patterns of C3 and C4 plants in the North American Great Plains and to use \uffce\uffb413C methodology and long\uffe2\uff80\uff90term research sites to determine contributions of small\uffe2\uff80\uff90grain crops to total soil organic carbon (SOC) now present. Archived and recent soil samples were used. Detailed soil sampling was in 1993 at long\uffe2\uff80\uff90term sites near Akron, CO, and Sidney, NE. After soil sieving, drying, and deliming, SOC and \uffce\uffb413C were determined using an automated C/N analyzer interfaced to an isotope\uffe2\uff80\uff90ratio mass spectrometer. Yield records from long\uffe2\uff80\uff90term experimental sites were used to estimate the amount of C3 plant residue C returned to the soil. Results from \uffce\uffb413C analyses of soils from near Waldheim, Saskatchewan, to Big Springs, TX, showed a strong north to south decrease in SOC derived from C3 plants and a corresponding increase from C4 plants. The \uffce\uffb413C analyses gave evidence that C3 plant residue C (possibly from shrubs) is increasing at the Big Springs, TX, and Lawton, OK, sites. Also, \uffce\uffb413C analyses of subsoil and topsoil layers shows evidence of a regional shift to more C3 species, possibly because of a cooler climate during the past few hundreds to thousands of years. Data from long\uffe2\uff80\uff90term research sites indicate that the efficiency of incorporation of small\uffe2\uff80\uff90grain crop residue C was about 5.4% during 84 yr at Akron, CO, and about 10.5% during 20 yr at Sidney, NE. The 14C age of the SOC at 0\uffe2\uff80\uff90 to 10\uffe2\uff80\uff90cm depth was 193 yr and at 30 to 45 cm was 4000 yr; 14C age of nonhydrolyzable C was 2000 and 7000 yr for these same two respective depths. Natural partitioning of the 13C isotope by the photosynthetic pathways of C3 and C4 plants provides a potentially powerful tool to study SOC dynamics at both regional and local scales.
", "keywords": ["580", "2. Zero hunger", "grasses", "13C isotope", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "SOM", "isotopic shift"]}, "links": [{"href": "https://doi.org/10.2136/sssaj1997.03615995006100040012x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Science%20Society%20of%20America%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.2136/sssaj1997.03615995006100040012x", "name": "item", "description": "10.2136/sssaj1997.03615995006100040012x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj1997.03615995006100040012x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1997-07-01T00:00:00Z"}}, {"id": "10.5061/dryad.zpc866t6r", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:21:19Z", "type": "Dataset", "title": "Soil organic carbon accumulation modes between pioneer and old-growth forest ecosystems", "description": "1. Increasing evidence suggests that high biomass and litterfall do not necessarily bring about soil organic carbon (SOC) sinks, contrary to the assumption that higher litterfall implies higher SOC when designing carbon models. The underlying mechanism is related to the quality of litter. 2. We conducted 15 years (2000\u20132015) of consecutive field measurements of \u03b413C values in SOC and plants in a pioneer forest (Pinus massoniana forest, PF) and an old-growth forest (monsoon evergreen broadleaved forest, BF), using an isotope mixing model based on mass balance to quantify the effects of vegetation on SOC stock and soil characteristics. 3. The carbon to nitrogen (C/N) ratio of litter in BF was lower than that in PF. The proportion of organic carbon yield input to the soil (Cinput) to the total litter carbon loss during decomposition was 38.7 \u00b1 3.3% and 28.0 \u00b1 2.1% in BF and PF, respectively. New carbon input was higher in BF (148.7 \u00b1 8.8 g C m\u22122 yr\u22121) than PF (99.7 \u00b1 4.5 g C m\u22122 yr\u22121), though there was a non-significant difference in annual litterfall between the two forests. Moreover, the Cinput was concentrated in the topsoil layer in PF but distributed in a more dispersed state across the whole soil profile in BF. Consequently, only the \u03b413C values of SOC decreased in the topsoil layer of PF, whereas these decreased at both soil depths in BF from 2000 to 2015. 4. Compared with PF, BF exhibited higher carbon input and a more favourable soil environment for carbon storage. It was the amount of intermediate product (i.e., Cinput) of litter decomposition, not the amount of litterfall itself, that drove the contrasting differences in SOC status. 5. Synthesis and applications. Litter quality controls SOC accumulation by regulating the fate of decomposing litter, which may explain why old-growth forests can sustainably accumulate carbon in soil. This finding questions the carbon models that predict the dependence of SOC accumulation on biomass and litter yield and suggests that litter quality should be valued in future carbon cycling models.30-Jul-2020", "keywords": ["intermediate product", "soil organic carbon", "13. Climate action", "\u03b413C", "litter quality", "15. Life on land", "C/N ratio"], "contacts": [{"organization": "Xiong, Xin, Zhou, Guoyi, Zhang, Deqiang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.zpc866t6r"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.zpc866t6r", "name": "item", "description": "10.5061/dryad.zpc866t6r", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.zpc866t6r"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-08-25T00:00:00Z"}}, {"id": "10.5061/dryad.8931zcrwj", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:21:11Z", "type": "Dataset", "created": "2023-07-04", "title": "Data from: Litter quality controls tradeoffs in soil carbon decomposition and replenishment in a subtropical forest", "description": "Species-rich forests can produce litter of varying carbon (C) and nitrogen (N) composition (i.e., quality), which can affect decomposition and play a central role in long-term soil organic carbon (SOC) accumulation. However, how differences in litter quality affect SOC decomposition and formation remains unclear over the full litter decomposition trajectory.\u00a0 We followed the in-situ complete decomposition of added 13C-labelled high- (low C:N) and low-quality (high C:N) leaf-litter and its effect on particulate (POM) and mineral-associated (MAOM) organic matter fractions over two years in a natural subtropical forest. We found that during early stages of decomposition, low-quality litter inputs decreased SOC via a positive priming effect (i.e., new C inputs favored decomposition of native SOC), but these SOC losses were offset by SOC gains observed via a negative priming effect during decomposition of high-quality litter. In contrast, this pattern reversed during late stages of decomposition\u2014SOC losses via a positive priming effect induced by high-quality litter were offset by SOC gains via a negative priming effect induced by low-quality litter. Over the full decomposition of litter, both high- and low-quality litter stimulated microbial breakdown of SOC tied to POM, but also replenished more persistent SOC that associated with soil minerals (MAOM). Altogether, we observed that low-quality litter formed twice as much new SOC as high-quality litter (24% vs. 12% of added litter-C). We extend the notion of the priming effect\u00a0from primarily a negative role promoting losses of native SOC, to a functional role that can replenish persistent SOC. Synthesis. Our measurements raise the possibility that, in species-rich forests, high- and low-quality litter decomposition play opposite but dynamically complementary roles in renewing POM\u2014both by inducing its decomposition and formation\u2014while exclusively favoring MAOM formation, which can help explain how differences in litter quality favor SOC accumulation and persistence. Global change factors that shift plant community composition may ultimately affect the fate of soil C, as changes in litter quality may force soil transitions from sinks to sources or sources to sinks of atmospheric CO2.", "keywords": ["complementary effect", "species-rich forests", "13C-labelled tree litter", "isotope tracer field experiment", "15. Life on land", "Priming effect", "litter-quality", "FOS: Natural sciences"], "contacts": [{"organization": "Lyu, Maokui, Homyak, Peter, Xie, Jinsheng, Pe\u00f1uelas, Josep, Ryan, Michael, Xiong, Xiaoling, Sardans, Jordi, Lin, Weisheng, Wang, Minhuang, Chen, Guangshui, Yang, Yusheng,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.8931zcrwj"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.8931zcrwj", "name": "item", "description": "10.5061/dryad.8931zcrwj", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.8931zcrwj"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-07-10T00:00:00Z"}}, {"id": "10.5061/dryad.ns92q", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:21:16Z", "type": "Dataset", "title": "Data from: Soil carbon response to woody plant encroachment: Importance of spatial heterogeneity and deep soil storage", "description": "unspecified1. Recent global trends of increasing woody plant abundance in grass-dominated ecosystems may substantially enhance soil organic carbon (SOC) storage and could represent a strong carbon (C) sink in the terrestrial environment. However, few studies have quantitatively addressed the influence of spatial heterogeneity of vegetation and soil properties on SOC storage at the landscape scale. In addition, most studies assessing SOC response to woody encroachment consider only surface soils, and have not explicitly assessed the extent to which deeper portions of the soil profile may be sequestering C. 2. We quantified the direction, magnitude, and pattern of spatial heterogeneity of SOC in the upper 1.2 m of the profile following woody encroachment via spatially-specific intensive soil sampling across a landscape in a subtropical savanna in the Rio Grande Plains, USA, that has undergone woody proliferation during the past century. 3. Increased SOC accumulation following woody encroachment was observed to considerable depth, albeit at reduced magnitudes in deeper portions of the profile. Overall, woody clusters and groves accumulated 12.87 and 18.67 Mg C ha-1 more SOC compared to grasslands to a depth of 1.2 m. 4. Woody encroachment significantly altered the pattern of spatial heterogeneity of SOC to a depth of 5 cm, with marginal effect at 5-15 cm, and no significant impact on soils below 15 cm. Fine root density explained greater variability of SOC in the upper 15 cm, while a combination of fine root density and soil clay content accounted for more of the variation in SOC in soils below 15 cm across this landscape. 5. Synthesis: Substantial SOC sequestration can occur in deeper portions of the soil profile following woody encroachment. Furthermore, vegetation patterns and soil properties influenced the spatial heterogeneity and uncertainty of SOC in this landscape, highlighting the need for spatially specific sampling that can characterize this variability and enable scaling and modeling. Given the geographic extent of woody encroachment on a global scale, this undocumented deep soil C sequestration suggests this vegetation change may play a more significant role in regional and global C sequestration than previously thought.", "keywords": ["2. Zero hunger", "deep soil carbon", "13. Climate action", "\u03b413C value", "landscape scale", "woody plant encroachment", "15. Life on land", "pattern of spatial heterogeneity", "SOC storage", "subtropical savanna"], "contacts": [{"organization": "Zhou, Yong, Boutton, Thomas W., Wu, X. Ben,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.ns92q"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.ns92q", "name": "item", "description": "10.5061/dryad.ns92q", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.ns92q"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-03-10T00:00:00Z"}}, {"id": "10.5061/dryad.sbcc2frbh", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:21:18Z", "type": "Dataset", "title": "Root functional traits determine the magnitude of the rhizosphere priming effect among eight tree species", "description": "Rhizosphere priming effect\u00a0can accelerate or decelerate the decomposition of soil organic matter.\u00a0Using a natural abundance 13C tracer method allowing partitioning of native soil organic carbon (SOC) decomposition and plant rhizosphere respiration, we studied the effects of eight tree species on the strength of the rhizosphere priming. All tree species enhanced the rate of SOC decomposition, by 82% on average.\u00a0Mean diameter of first-order roots and root exudate-derived respiration were positively correlated with the RPE, together explaining a large part of the observed variation in the RPE (R2 = 0.72), whereas root branching density was negatively associated with the RPE. Path analyses further suggested that mean diameter of first-order roots was the main driver of the RPE owing to its positive direct effect on the RPE and its indirect effects via root exudate-derived respiration and root branching density. These results demonstrate that the magnitude of the RPE is regulated by complementary aspects of root morphology, architecture and physiology, implying that comprehensive approaches are needed to reveal the multiple mechanisms driving plant effects on the RPE.", "keywords": ["13C natural abundance", "Plant functional traits", "rhizosphere priming effect", "Fine roots", "15. Life on land", "FOS: Natural sciences"], "contacts": [{"organization": "Chao, Lin, Liu, Yanyan, Zhang, Weidong, Wang, Qingkui, Guan, Xin, Yang, Qingpeng, Chen, Longchi, Zhang, Jianbing, Hu, Baoqing, Liu, Zhanfeng, Wang, Silong, Freschet, Gr\u00e9goire T.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.sbcc2frbh"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.sbcc2frbh", "name": "item", "description": "10.5061/dryad.sbcc2frbh", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.sbcc2frbh"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-02-20T00:00:00Z"}}, {"id": "10.5281/zenodo.4281012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:23:02Z", "type": "Dataset", "title": "Roots Carbon Dynamics in Temperate forest roots, Thuringia, Germany", "description": "Open AccessThese files contain radiocarbon, d13C, NSC concentrations, and CO2 efflux rates measured for aspen (Populus tremula hybrids) roots collected during 2018 growing season in the Gro\u00dfer Hermannsberg Mountain, Germany (50\u00b042\u201950\u2019\u2019 N, 10\u00b036\u201913\u2019\u2019 E, 616 m a.s.l). Coarse (> 2 mm) and fine (2 \u2264 mm) roots collected from three 'treatments': before stem girdling (Pre-girdling), ~3 months after girdling (Girdling) and ~3 months after girdling but in un-girdled trees (Control). The files with the relevant results: '13C', '14C', 'CO2_efflux', 'NSC'. Few roots from the 'Pre-girdling' treatment were incubated for respiration measurements 7 d after harvest. The files with the relevant results: 'Repeated_incubations_isotopes', 'Repeated_incubations_fluxes'. Results of incubations used for Q10 calculations presented in the file 'CO2_efflux_Q10'. Temperature and rainfall in the site during 2018 growing season are presented in the file 'Field_temperature_rainfall'. Results used to reconstruct local atmospheric D14C-CO2 record are presented in the file 'Local_atmospheric_CO2_D14C'. The file 'Metadata' contains information about the headers in the other files.", "keywords": ["tree roots", "d13C", "15. Life on land", "storage dynamics", "nonstructural carbohydrates", "radiocarbon (14C)", "respiration"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.4281012"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.4281012", "name": "item", "description": "10.5281/zenodo.4281012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.4281012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-24T00:00:00Z"}}, {"id": "10.5281/zenodo.4281013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:23:02Z", "type": "Dataset", "title": "Roots Carbon Dynamics in Temperate forest roots, Thuringia, Germany", "description": "Open AccessThese files contain radiocarbon, d13C, NSC concentrations, and CO2 efflux rates measured for aspen (Populus tremula hybrids) roots collected during 2018 growing season in the Gro\u00dfer Hermannsberg Mountain, Germany (50\u00b042\u201950\u2019\u2019 N, 10\u00b036\u201913\u2019\u2019 E, 616 m a.s.l). Coarse (> 2 mm) and fine (2 \u2264 mm) roots collected from three 'treatments': before stem girdling (Pre-girdling), ~3 months after girdling (Girdling) and ~3 months after girdling but in un-girdled trees (Control). The files with the relevant results: '13C', '14C', 'CO2_efflux', 'NSC'. Few roots from the 'Pre-girdling' treatment were incubated for respiration measurements 7 d after harvest. The files with the relevant results: 'Repeated_incubations_isotopes', 'Repeated_incubations_fluxes'. Results of incubations used for Q10 calculations presented in the file 'CO2_efflux_Q10'. Temperature and rainfall in the site during 2018 growing season are presented in the file 'Field_temperature_rainfall'. Results used to reconstruct local atmospheric D14C-CO2 record are presented in the file 'Local_atmospheric_CO2_D14C'. The file 'Metadata' contains information about the headers in the other files.", "keywords": ["tree roots", "d13C", "15. Life on land", "storage dynamics", "nonstructural carbohydrates", "radiocarbon (14C)", "respiration"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.4281013"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.4281013", "name": "item", "description": "10.5281/zenodo.4281013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.4281013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-24T00:00:00Z"}}, {"id": "10.5281/zenodo.10814159", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:21:45Z", "type": "Dataset", "title": "Chemical composition, soil water content and 16S rRNA and ITS gene copy numbers of soil aggregates and bulk soil samples", "description": "This repository contains all data to reproduce the analyses presented in 'Distinct microbial communities are linked to organic matter properties in millimetre-sized soil aggregates', Simon et al 2024, The ISME Journal\u00a0(DOI: 10.1093/ismejo/wrae156).", "keywords": ["archaea", "bulk soil sample", "delta 15N", "soil water content", "fungi", "soil aggregate", "ITS gene copy numbers", "carbon content", "delta 13C", "nitrogen content", "16S rRNA gene copy numbers"], "contacts": [{"organization": "Simon, Eva, Kaiser, Christina,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.10814159"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.10814159", "name": "item", "description": "10.5281/zenodo.10814159", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.10814159"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-08-05T00:00:00Z"}}, {"id": "10.5281/zenodo.13338423", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:44Z", "type": "Dataset", "title": "Data on respiration, substrate incorporation, and soil compound concentration in response to simulated root exudation", "description": "Open AccessIn this study we used reverse microdialysis to release a mixture of 13C-labeled substrates into intact meadow and forest soil cores (6-hour long) to simulate root exudation. We utilized three different artificial root exudates: sugars (glucose, fructose), organic acids (acetate, succinate), and a combination of sugars and organic acids (glucose, fructose, acetate, succinate); alongside a water-only control for comparison. We collected compounds from soil solutions and measured respiration. Due to 13C-labeled substrate we could differentiate between substrate-derived respiration and SOM-derived respiration. Additionally, we extracted lipid fatty acids from soil and measured their 13C incorporation.", "keywords": ["microdialysis", "respiration rates", "NLFA", "PLFA", "13C isotopic labeling", "soil compounds"], "contacts": [{"organization": "Wiesenbauer, Julia, Kaiser, Christina,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.13338423"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.13338423", "name": "item", "description": "10.5281/zenodo.13338423", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.13338423"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2024-08-18T00:00:00Z"}}, {"id": "10.5281/zenodo.14917866", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:22:26Z", "type": "Dataset", "title": "Data for the manuscript 'Smart mixture design can steer the fate of root derived carbon into mineral-associated and particulate organic matter in intensively managed grasslands'", "description": "To determine the fate of root-derived carbon (C) input from grassland mixtures into distinct soil organic carbon pools \u2014 particulate organic matter (POC) and mineral-associated organic carbon (MAOC) \u2014 a field trial was established, comparing pure stands of perennial ryegrass under high and low nitrogen (N) fertilizer application rates with grassland mixtures containing legumes and forbs at increasing levels of species richness. The mixtures received the low N application rate. Through multiple-pulse \u00b9\u00b3C-CO\u2082 labeling during the first growing season (2022), we captured the net formation of MAOC and POC. At the end of the growing season, soil cores with a diameter of 30 cm were excavated to a depth of 25 cm (topsoil) and transferred to the lab. We removed roots from the soil and performed particle-size fractionation to trace fresh organic carbon (net rhizodeposited C) into particulate organic matter (POM) and mineral-associated organic matter (MAOM).\u00a0Using a cut-off of 50 \u03bcm, particles larger than 50 \u03bcm were classified as POM, while those smaller than 50 \u03bcm were classified as MAOM. We related these soil C fractions to five morphological root traits, as well as to the lignocellulose index and the C:N ratio in root biomass.", "keywords": ["13C isotopic labelling", "Soil carbon fractionation", "Soil carbon storage", "Root traits", "Plant Functional groups", "Legumes", "Forbs"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.14917866"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.14917866", "name": "item", "description": "10.5281/zenodo.14917866", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.14917866"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-02-24T00:00:00Z"}}, {"id": "10.5281/zenodo.4268490", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:22:38Z", "type": "Dataset", "title": "Dataset to Manuscript: Vertical mobility of pyrogenic organic matter in soils: A column experiment, Marcus Schiedung et al. (Biogeosciences)", "description": "Dataset to manuscript: Schiedung, M., Bell\ufffd\ufffd, S.-L., Sigmund, G., Kalbitz, K., and Abiven, S.: Vertical mobility of pyrogenic organic matter in soils: A column experiment, Biogeosciences, https://doi.org/10.5194/bg-17-6457-2020, 2020. All parameters and variables are described in 'Var_names' files.", "keywords": ["13C labelling", "13. Climate action", "soil column experiment", "pyrogenic carbon", "soil"], "contacts": [{"organization": "Schiedung, Marcus, Abiven, Samuel,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.4268490"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.4268490", "name": "item", "description": "10.5281/zenodo.4268490", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.4268490"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-11-11T00:00:00Z"}}, {"id": "10.5281/zenodo.6630479", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:23:09Z", "type": "Dataset", "title": "Organic matter properties of the Rincon del Bonete and Palmar sediment cores (Uruguay)", "description": "This database presents the results of organic matter measurements performed on cores collected in\u00a0 the Rincon del Bonete and Palmar reservoirs (Uruguay) IRMS analyses were conducted on dry sediment for determining organic matter properties, including elemental concentrations (Total Organic Carbon \u2013 TOC, Total Nitrogen \u2013TN, both expressed in %) and stable isotope measurements (\u03b413C and \u03b415N, expressed in \u2030). These measurements were performed with a continuous flow Elementar\u00ae VarioPyro cube analyzer coupled to a Micromass\u00ae Isoprime IRMS available at the Alys\u00e9s platform of the Institut de Recherche pour le D\u00e9veloppement (Bondy, France) Sediment cores were collected on 2019/09/01 in the Palmar (PA-02) and Rincon del Bonete (RDB-01) reservoirs (Uruguay). Corresponding authors: anthony.foucher@lsce.ipsl.fr", "keywords": ["Total Nitrogen", "13. Climate action", "\u03b413C", "Total Organic Carbon", "N and C isotopes", "\u03b415N"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.6630479"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.6630479", "name": "item", "description": "10.5281/zenodo.6630479", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.6630479"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-06-09T00:00:00Z"}}, {"id": "10.5281/zenodo.6992753", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:23:12Z", "type": "Dataset", "title": "Dataset to Manuscript: Schiedung et al. (2023; SBB) Enhanced loss but limited mobility of pyrogenic and organic matter in continuous permafrost-affected forest soils.", "description": "Dataset to Schiedung et al. (2023; SBB) Enhanced loss but limited mobility of pyrogenic and organic matter in continuous permafrost-affected forest soils. All published data is provided in the files 'dd_'. This includes: dd_cores: All data of soil cores and with depth dd_fractions: All data obtained from fractionation of the 0-3cm core layers dd_teabag: All data and mass losses of incubated teabags dd_temperature: All data and recorded soil temperatures All parameters and names are described in the corresponding file starting with 'Var_names_'. Details on methods and calculations are given in the manuscript and supporting information. NanoSIMS data is provided in the folder 'dd_NanoSIMS.zip'. This contains a file with descriptions of the provided tif-files 'dd_NanoSIMS'. Descriptions of the variables and parameters as well as further instructions are given in the file 'Var_names_description_dd_NanoSIMS'. Images and additional data can be requested by the corresponding author (marcusschiedung@gmail.com).", "keywords": ["Pyrogenic carbon", "Isotopes", "Soil organic carbon", "Permafrost", "in-situ incubation", "Teabag", "15. Life on land", "13C lebelling"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.6992753"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.6992753", "name": "item", "description": "10.5281/zenodo.6992753", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.6992753"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-08-15T00:00:00Z"}}, {"id": "10.5281/zenodo.8092653", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:23:24Z", "type": "Journal Article", "created": "2021-11-26", "title": "Drought priming alleviated salinity stress and improved water use efficiency of wheat plants", "description": "Global warming and salinization are inducing adverse efects on crop yield. Drought priming has been proved to improve drought tolerance of plants at later growth stages, however, whether and how drought priming at early growth stage alleviating salinity stress at later growth stage and improving water use efciency (WUE) of plants remains unknown. Therefore, two wheat cultivars were subjected to drought priming at the 4th and 6th leaf stage and subsequent moderate salinity stress at 100 mmol NaCl applied at the later jointing growth stage. The growth, physiological responses, ABA signaling and WUE were investigated to unravel the regulating mechanisms of drought priming on subsequent salinity stress. The results showed that drought priming imposed at the early growth stage improved the leaf and root water potential while attenuated the ABA concentration in the leaves ([ABA]leaf) for the primed plants, which increased the stomatal conductance (gs) and photosynthesis (Pn). Consequently, the biomass under the salinity stress was signifcantly increased due to earlier drought priming. Moreover, drought priming improved the specifc leaf N content due to the facilitated root growth and morphology, and this could beneft high leaf photosynthetic capacity during the salinity stress period, improving the Pn and water uptake for the primed plants. Drought priming signifcantly improved plant level WUE (WUEp) due to considerably enhanced dry biomass compared with non-primed plants under subsequent salinity stress. The signifcantly increased leaf \u03b413C under drought priming further demonstrated that the improved leaf \u03b413C and WUEp was mainly ascribed to the improvement of Pn. Drought primed plants signifcantly improved K+ concentration and maintained the K+/Na+ ratio compared with non-primed plants under subsequent salinity stress, which could mitigate the adverse efects of excess Na+ and minimize salt-induced ionic toxicity by improving salt tolerance for primed plants. Therefore, drought priming at early growth stage could be considered as a promising strategy for salt-prone areas to optimize agricultural sustainability and food security under changing climatic conditions.", "keywords": ["Triticum aestivum L", "2. Zero hunger", "0106 biological sciences", "0301 basic medicine", "Water stress", "15. Life on land", "01 natural sciences", "Salinity tolerance", "Hormones", "6. Clean water", "03 medical and health sciences", "ABA", "13. Climate action", "\u03b413C"]}, "links": [{"href": "https://doi.org/10.5281/zenodo.8092653"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%20Growth%20Regulation", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.8092653", "name": "item", "description": "10.5281/zenodo.8092653", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.8092653"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-11-26T00:00:00Z"}}, {"id": "10.5281/zenodo.8109601", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:22:58Z", "type": "Dataset", "title": "Data on soil compounds, respiration and incorporation of 13C-labeled substrate", "description": "Open AccessSee Readme.pdf", "keywords": ["2. Zero hunger", "microdialysis", "respiration rates", "compound concentration in soil solution", "PLFA and NLFA", "13C isotopic labeling", "15. Life on land", "6. Clean water"], "contacts": [{"organization": "Wiesenbauer, Julia, Kaiser, Christina,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.8109601"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.8109601", "name": "item", "description": "10.5281/zenodo.8109601", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.8109601"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-07-18T00:00:00Z"}}, {"id": "10.5683/SP3/PAXLVH", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:23:31Z", "type": "Dataset", "title": "Plant and soil variables in plots outside and beneath Salix richardsonii patches along active and abandoned channels in a High Arctic tundra", "description": "We explored how erect shrub abundance leads to SOC variation within 20 cm soil cores in a High Arctic tundra (Bylot Island, Nunavut, Canada), where the only erect shrub, Salix richardsonii, has settled along currently active and abandoned channel zones of alluvial fans.", "keywords": ["High Arctic tundra", "Salix arctica", "soil 15N", "15. Life on land", "Salix richardsonii", "soil organic carbon stocks", "soil 14C", "soil 13C", "Salix reticulata", "Particulate organic matter", "Earth and Environmental Sciences", "Shrubification", "Plant-enhanced mineralization;", "Plant functional traits", "Alluvian fan"], "contacts": [{"organization": "Maire, Vincent, Lamarque, Laurent, L\u00e9vesque, Esther,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5683/SP3/PAXLVH"}, {"rel": "self", "type": "application/geo+json", "title": "10.5683/SP3/PAXLVH", "name": "item", "description": "10.5683/SP3/PAXLVH", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5683/SP3/PAXLVH"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-01-01T00:00:00Z"}}, {"id": "10261/393727", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:24:23Z", "type": "Journal Article", "created": "2024-10-10", "title": "Seasonal Evolution of Soil Respiration and Sources of Respirable Carbon in Three Forest Stands on the Loess Plateau of China", "description": "ABSTRACTThe litter and root systems of forest stands can influence soil organic matter content and are subject to the effects of soil temperature and moisture. Through the decomposition activity of soil microorganisms, a portion of the carbon stored in aboveground vegetation is transferred to the underground carbon pool, thereby impacting soil respiration. When we investigated the effects of various components and environmental factors on soil respiration, 13C served as an effective tool for analyzing their contributions. In this study, conducted in a region of the Loess Plateau, three forest stands' soil respiration (Quercus acutissima forest\uffe2\uff80\uff94QAF, Pinus tabuliformis forest\uffe2\uff80\uff94PTF, and mixed forests\uffe2\uff80\uff94MF) was examined. Both soil respiration rate (Rs) and 13C exhibited seasonal fluctuations linked to changes in surface soil temperature and moisture. The soil respiration rate of all forest stands decreased to below 1\uffe2\uff80\uff89\uffce\uffbcmol\uffe2\uff80\uff89m\uffe2\uff88\uff922\uffe2\uff80\uff89s\uffe2\uff88\uff921 during winter. The average range of \uffce\uffb413C fell between \uffe2\uff88\uff9222\uffe2\uff80\uffb0 and \uffe2\uff88\uff9217\uffe2\uff80\uffb0. Over the course of four seasons, we monitored soil respiration and identified hydrothermal factors. The correlation between hydrothermal factors and CO2 releases from soil respiration varied significantly across seasons among different forest structures (p\uffe2\uff80\uff89<\uffe2\uff80\uff890.001). Additionally, the contribution of litter to soil respiration was the main source and it was higher in autumn and winter, with a maximum of over 75%. This study holds significant importance for understanding the processes underlying the carbon sources of soil respiration.
Grasslands face more frequent and extreme droughts; yet, their responses to increasing drought intensity are poorly understood. Increasing drought intensity likely triggers abrupt shifts (thresholds) in grassland ecosystem functioning which can implicate recovery trajectories.
Here, we determined how drought intensity affects plant productivity, and plant\uffe2\uff80\uff93soil carbon (C) and nitrogen (N) cycling. We exposed model grassland plant communities with contrasting resource acquisition strategies (a fast\uffe2\uff80\uff90 vs a slow\uffe2\uff80\uff90strategy plant community), to a gradient of drought intensity. The drought gradient ranged from well\uffe2\uff80\uff90watered to severely water\uffe2\uff80\uff90limited conditions. We identified thresholds of plant community productivity (above\uffe2\uff80\uff90ground biomass) at peak drought and 2\uffe2\uff80\uff89months after re\uffe2\uff80\uff90wetting, and measured net ecosystem exchange and ecosystem respiration of C\uffc2\uffa0throughout the drought and recovery phases. At peak drought and 1\uffe2\uff80\uff89week after re\uffe2\uff80\uff90wetting, we traced recently acquired C from plants to the soil and into microbial biomass and fatty acids using 13C pulse labelling, and measured plant and soil N.
At peak drought, slow\uffe2\uff80\uff90strategy plant communities were more drought resistant than fast\uffe2\uff80\uff90strategy communities, as the threshold in plant productivity occurred at a higher drought intensity for the slow\uffe2\uff80\uff90 than the fast\uffe2\uff80\uff90strategy community. Shortly after re\uffe2\uff80\uff90wetting, microbial uptake of recent plant\uffe2\uff80\uff90assimilated C increased with increasing past drought intensity, coinciding with an increase in soil N availability and leaf N. Threshold responses to drought intensity at peak drought translated into non\uffe2\uff80\uff90linear recovery responses, with greater compensatory growth in the fast\uffe2\uff80\uff90strategy community. At peak drought, increasing drought intensity reduced C uptake and increased relative C partitioning to leaves and microbial biomass. Upon re\uffe2\uff80\uff90wetting, plant community strategy mediated drought intensity effects on plant and soil C and N dynamics and plant recovery trajectories. The fast\uffe2\uff80\uff90strategy community recovered quickly, with higher leaf N than the slow community, while the slow community increased C allocation to microbial biomass.
Synthesis. Our findings highlight that C and N dynamics in the plant\uffe2\uff80\uff93soil system display non\uffe2\uff80\uff90linear responses to increasing drought intensity both during and after drought, which has implications for plant community recovery trajectories.
Carbon (C) assimilation can be severely impaired during periods of environmental stress, like drought or defoliation, making trees heavily dependent on the use of C reserve pools for survival; yet, the dynamics of reserve use during periods of reduced C supply are still poorly understood. We used stem girdling in mature poplar trees (Populus tremula L. hybrids), a lipid-storing species, to permanently interrupt the phloem C transport and induced C shortage in the isolated stem section below the girdle and monitored metabolic activity during three campaigns in the growing seasons of 2018, 2019 and 2021. We measured respiratory fluxes (CO2 and O2), non-structural carbon concentration, the respiratory substrate (based on isotopic analysis and CO2/O2 ratio) and the age of the respiratory substrate (based on radiocarbon analysis). Our study shows that poplar trees can survive long periods of reduced C supply from the canopy by switching in metabolism from recent carbohydrates to older storage pools with a potential mixture of respiratory substrates, including lipids. This mechanism of stress resilience can explain why tree decline may take many years before death occurs.The soil microbiome determines the fate of plant-fixed carbon. The shifts in soil properties caused by land use change leads to modifications in microbiome function, resulting in either loss or gain of soil organic carbon (SOC). Soil pH is the primary factor regulating microbiome characteristics leading to distinct pathways of microbial carbon cycling, but the underlying mechanisms remain understudied. Here, the taxa-trait relationships behind the variable fate of SOC were investigated using metaproteomics, metabarcoding, and a 13C-labeled litter decomposition experiment across two temperate sites with differing soil pH each with a paired land use intensity contrast. 13C incorporation into microbial biomass increased with land use intensification in low-pH soil but decreased in high-pH soil, with potential impact on carbon use efficiency in opposing directions. Reduction in biosynthesis traits was due to increased abundance of proteins linked to resource acquisition and stress tolerance. These trait trade-offs were underpinned by land use intensification-induced changes in dominant taxa with distinct traits. We observed divergent pH-controlled pathways of SOC cycling. In low-pH soil, land use intensification alleviates microbial abiotic stress resulting in increased biomass production but promotes decomposition and SOC loss. In contrast, in high-pH soil, land use intensification increases microbial physiological constraints and decreases biomass production, leading to reduced necromass build-up and SOC stabilization. We demonstrate how microbial biomass production and respiration dynamics and therefore carbon use efficiency can be decoupled from SOC highlighting the need for its careful consideration in managing SOC storage for soil health and climate change mitigation.