{"type": "FeatureCollection", "features": [{"id": "10.1007/s00374-011-0539-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:27Z", "type": "Journal Article", "created": "2011-01-18", "title": "Effects Of Organic And Inorganic Fertilization On Soil Bacterial And Fungal Microbial Diversity In The Kabete Long-Term Trial, Kenya", "description": "The effects of crop manure and inorganic fertilizers on composition of microbial communities of central high land soils of Kenya are poorly known. For this reason, we have carried out a thirty-two-year-old long-term trial in Kabete, Kenya. These soils were treated with organic (maize stover (MS) at 10 t ha\u22121, farmyard manure (FYM) at 10 t ha\u22121) and inorganic fertilizers 120 kg N, 52.8 kg P (N2P2), N2P2 + MS, N2P2 + FYM, a control, and a fallow for over 30 years. We examined 16S rRNA gene and 28S rRNA gene fingerprints of bacterial and fungal diversity by PCR amplification and denaturing gradient gel electrophoresis separation, respectively. The PCR bacterial community structure and diversity were negatively affected by N2P2 and were more closely related to the bacterial structure in the soils without any addition (control) than that of soils with a combination of inorganic and organic or inorganic fertilizers alone. The effect on fungal diversity by N2P2 was different than the effect on bacterial diversity since the fungal diversity was similar to that of the N2P2 + FYM and N2P2 + MS-treated. However, soils treated with organic inputs clustered away from soils amended with inorganic inputs. Organic inputs had a positive effect on both bacterial and fungal diversity with or without chemical fertilizers. Results from this study suggested that total diversity of bacterial and fungal communities was closely related to agro-ecosystem management practices and may partially explain the yield differences observed between the different treatments.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "Microbial diversity", "soil microorganisms", "engrais organique", "http://aims.fao.org/aos/agrovoc/c_27870", "Organic and inorganic amendments", "F08 - Syst\u00e8mes et modes de culture", "rendement des cultures", "630", "fertilisation", "biodiversit\u00e9", "http://aims.fao.org/aos/agrovoc/c_4592", "http://aims.fao.org/aos/agrovoc/c_36669", "http://aims.fao.org/aos/agrovoc/c_2018", "inorganic fertilizers", "http://aims.fao.org/aos/agrovoc/c_10795", "http://aims.fao.org/aos/agrovoc/c_34326", "fertility", "2. Zero hunger", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "http://aims.fao.org/aos/agrovoc/c_33949", "g\u00e9n\u00e9tique des populations", "04 agricultural and veterinary sciences", "agro\u00e9cosyst\u00e8me", "6. Clean water", "fertilit\u00e9 du sol", "PCR", "http://aims.fao.org/aos/agrovoc/c_34079", "polymerization", "community structure", "abonos inorg\u00e1nicos", "management", "570", "http://aims.fao.org/aos/agrovoc/c_7170", "http://aims.fao.org/aos/agrovoc/c_7172", "flore microbienne", "soil", "http://aims.fao.org/aos/agrovoc/c_36167", "micro-organisme du sol", "http://aims.fao.org/aos/agrovoc/c_10176", "organic fertilizers", "abonos org\u00e1nicos", "pratique culturale", "microorganismos del suelo", "suelo", "flore du sol", "P35 - Fertilit\u00e9 du sol", "P34 - Biologie du sol", "polimerizaci\u00f3n", "15. Life on land", "engrais min\u00e9ral", "http://aims.fao.org/aos/agrovoc/c_16367", "http://aims.fao.org/aos/agrovoc/c_4086", "0401 agriculture", " forestry", " and fisheries", "F04 - Fertilisation"]}, "links": [{"href": "https://doi.org/10.1007/s00374-011-0539-3"}, {"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/s00374-011-0539-3", "name": "item", "description": "10.1007/s00374-011-0539-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s00374-011-0539-3"}, {"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": "10.1007/s10021-010-9341-6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:36Z", "type": "Journal Article", "created": "2010-05-27", "title": "Size Of Precipitation Pulses Controls Nitrogen Transformation And Losses In An Arid Patagonian Ecosystem", "description": "Arid ecosystems receive precipitation pulses of different sizes that may differentially affect nitrogen (N) losses and N turnover during the growing season. We designed a rainfall manipulation experiment in the Patagonian steppe, southern Argentina, where we simulated different precipitation patterns by adding the same amount of water in evenly spaced three-small rainfall events or in one-single large rainfall event, three times during a growing season. We measured the effect of the size of rainfall pulses on N mineralization and N losses by denitrification, ammonia volatilization, and nitrate and ammonia leaching. Irrigation pulses stimulated N mineralization (P < 0.05), with small and frequent pulses showing higher responses than large pulses (P < 0.10). Irrigation effects were transient and did not result in changes in seasonal net N mineralization suggesting a long-term substrate limitation. Water pulses stimulated gaseous N losses by denitrification, with large pulses showing higher responses than small pulses (P < 0.05), but did not stimulate ammonia volatilization. Nitrate leaching also was higher after large than after small precipitation events (P < 0.05). Small events produced higher N transformations and lower N losses by denitrification and nitrate leaching than large events, which would produce higher N availability for plant growth. Climate change is expected to increase the frequency of extreme precipitation events and the proportion of large to small rainfall events. Our results suggest that these changes would result in reduced N availability and a competitive advantage for deep-rooted species that prefer nitrate over ammonia. Similarly, the ammonium:nitrate ratio might decrease because large events foster nitrate losses but not ammonium losses.", "keywords": ["2. Zero hunger", "Ammonia Volatilization", "Precipitation Pulses", "Arid Ecosystems", "Patagonian Steppe", "Nitrate Leaching", "Soil Inorganic N", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "Net N Mineralization", "13. Climate action", "https://purl.org/becyt/ford/1.6", "Denitrification", "0401 agriculture", " forestry", " and fisheries", "https://purl.org/becyt/ford/1", "Nitrogen-Water Interactions", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1007/s10021-010-9341-6"}, {"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/s10021-010-9341-6", "name": "item", "description": "10.1007/s10021-010-9341-6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10021-010-9341-6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-05-28T00:00:00Z"}}, {"id": "10.1007/s10457-006-9027-4", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:40Z", "type": "Journal Article", "created": "2007-01-17", "title": "Effects Of Organic And Mineral Fertilizer Inputs On Maize Yield And Soil Chemical Properties In A Maize Cropping System In Meru South District, Kenya", "description": "Soil nutrient depletion as a result of continuous cultivation of soils without adequate addition of external inputs is a major challenge in the highlands of Kenya. An experiment was set up in Meru South District, Kenya in 2000 to investigate the effects of different soil-incorporated organic (manure, Tithonia diversifolia, Calliandra calothyrsus, Leucaena leucocephala) and mineral fertilizer inputs on maize yield, and soil chemical properties over seven seasons. On average, tithonia treatments (with or without half recommended rate of mineral fertilizer) gave the highest grain yield (5.5 and 5.4\u00a0Mg\u00a0ha\u22121 respectively) while the control treatment gave the lowest yield (1.5\u00a0Mg\u00a0ha\u22121). After 2\u00a0years of trial implementation, total soil carbon and nitrogen contents were improved with the application of organic residues, and manure in particular improved soil calcium content. Results of the economic analysis indicated that on average across the seven seasons, tithonia with half recommended rate of mineral fertilizer treatment recorded the highest net benefit (USD 787\u00a0ha\u22121) while the control recorded the lowest (USD 272\u00a0ha\u22121). However, returns to labor or benefit-cost ratios were in most cases not significantly improved when organic materials were used.", "keywords": ["2. Zero hunger", "soil fertility", "yields", "forestry", "cropping systems", "04 agricultural and veterinary sciences", "fertilidad del suelo", "15. Life on land", "maize", "6. Clean water", "ma\u00edz", "sistemas de cultivo", "0401 agriculture", " forestry", " and fisheries", "inorganic fertilizers", "organic fertilizers", "abonos org\u00e1nicos", "abonos inorg\u00e1nicos", "rendimiento"]}, "links": [{"href": "https://doi.org/10.1007/s10457-006-9027-4"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agroforestry%20Systems", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10457-006-9027-4", "name": "item", "description": "10.1007/s10457-006-9027-4", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10457-006-9027-4"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-01-18T00:00:00Z"}}, {"id": "10.1007/s10705-006-9049-3", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:48Z", "type": "Journal Article", "created": "2007-10-15", "title": "Appropriate Technologies To Replenish Soil Fertility In Southern Africa", "description": "In southern Africa, soil nutrient reserves are being depleted because of continued nutrient mining without adequate replenishment. The consequent downward spiral of soil fertility has led to a corresponding decline in crop yields, food insecurity, food aid and environmental degradation. The central issue for improving agricultural productivity in southern Africa is how to build up and maintain soil fertility despite the low incomes of smallholder farmers and the increasing land and labour constraints they face. Under this review five main options namely: inorganic fertilizers, grain legumes, animal manures, integrated nutrient management and agroforestry options appropriate to smallholder farmers are presented. Issues addressed in the use of inorganic fertilizers are reduction in fertilizer costs, timely availability and use efficiency. Legumes can be used to diversify farm system productivity but this requires P and lime application to support better legume growth and biological nitrogen fixation (BNF) as well as development of markets for various legume products. Manure availability and quality are central issues in increasing smallholder farm productivity and increasing its efficiency through proper handling and application methods. Integrated nutrient management of soil fertility by combined application of both inputs will increase use efficiency of inputs and reduce costs and increase profitability; but the challenge is often how to raise adequate amounts of either inorganic or organic inputs. Issues such as quality of inputs, nutrient balancing, labour to collect and transport organic inputs and their management need to be optimized. These are the challenges of adoption as are the scaling up of these options to millions of small-scale farmers.", "keywords": ["0106 biological sciences", "grain legumes", "fertilidad del suelo", "leguminosas de grano", "01 natural sciences", "agroforestry", "12. Responsible consumption", "africa meridional", "inorganic fertilizers", "organic fertilizers", "abonos org\u00e1nicos", "2. Zero hunger", "soil fertility", "1. No poverty", "tecnolog\u00eda apropiada", "04 agricultural and veterinary sciences", "15. Life on land", "feed crops", "6. Clean water", "appropriate technology", "13. Climate action", "manejo del suelo", "0401 agriculture", " forestry", " and fisheries", "soil management", "agroforesteria", "abonos inorg\u00e1nicos"], "contacts": [{"organization": "Mafongoya, P.L., Bationo, B. Andr\u00e9, Kihara, Job Maguta, Waswa, Boaz Shaban,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s10705-006-9049-3"}, {"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/s10705-006-9049-3", "name": "item", "description": "10.1007/s10705-006-9049-3", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10705-006-9049-3"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-11-18T00:00:00Z"}}, {"id": "10.1007/s11027-014-9560-9", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:14:52Z", "type": "Journal Article", "created": "2014-04-22", "title": "Combining Organic And Inorganic Nitrogen Fertilisation Reduces N2o Emissions From Cereal Crops: A Comparative Analysis Of China And Zimbabwe", "description": "Agriculture is one of the major sources of nitrous oxide (N2O), a potent greenhouse gas (GHG) whose atmospheric concentrations are estimated to increase with efforts to increase food production through increasing nitrogen (N) inputs. The objective of this study was to quantify N2O emissions from maize (Zea mays L.) and winter wheat (Triticum aestivum L.) fields amended with inorganic, organic N and a combination of both sources (integrated management), in tropical (Zimbabwe) and temperate (China) climatic conditions. In Zimbabwe N2O emissions were measured from maize plots, while in China emissions were measured from maize and winter wheat plots. In Zimbabwe the treatments were; (i) Control, (ii) 60\u00a0kg N ha\u22121 ammonium nitrate (NH4NO3), (iii) 120\u00a0kg N ha\u22121 NH4NO3, (iv) 60\u00a0kg ha\u22121 cattle (Bos primigenius) manure-N, plus 60\u00a0kg N ha\u22121 NH4NO3, (v) 60\u00a0kg N ha\u22121 cattle manure-N, and (vi) 120\u00a0kg N ha\u22121 cattle manure-N. In China, treatments were; (i) Control, (ii) 300\u00a0kg N ha\u22121 Urea, (iii) 92\u00a0kg N ha\u22121 Urea plus 65\u00a0kg ha\u22121 chicken (Gallus domesticus) manure-N, (iv) 100\u00a0kg N ha\u22121 Urea and (v) 100\u00a0kg N ha\u22121 control release Urea. Our results showed that under both temperate and tropical conditions, integrated nutrient management resulted in lower N2O emissions compared to inorganic fertilizers which had higher total and yield-scale N2O emissions. We conclude that by combining organic and inorganic N sources, smallholder farmers in both China and Zimbabwe, and other countries with similar climatic conditions, can mitigate agricultural emissions without compromising productivity.", "keywords": ["2. Zero hunger", "Smallholder farming systems", "Nitrous oxide", "Mitigation", "13. Climate action", "Organic and Inorganic N", "smallholder farming systems", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "12. Responsible consumption"]}, "links": [{"href": "https://doi.org/10.1007/s11027-014-9560-9"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Mitigation%20and%20Adaptation%20Strategies%20for%20Global%20Change", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s11027-014-9560-9", "name": "item", "description": "10.1007/s11027-014-9560-9", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11027-014-9560-9"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-04-23T00:00:00Z"}}, {"id": "10.1007/s11104-016-3052-5", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:02Z", "type": "Journal Article", "created": "2016-09-10", "title": "Effects Of Forest Thinning On Soil-Plant Carbon And Nitrogen Dynamics", "description": "Corymbia spp. (previously included in the genus Eucalyptus) are common species in sub/tropical Australia and produce high quality timber and round logs. Thinning of native forests helps to preserve native tree species and is more sustainable than replacing native forest stands with mono-species plantations to produce timber. This study aimed to explore the effects of native forest thinning on soil-plant carbon (C) and nitrogen (N) dynamics in two experimental sites, Esk (5\u00a0years post-thinning) and Herberton (7\u00a0years post-thinning), situated in Queensland, Australia. The two sites had different thinning regimes. The final stocking rates varied between 75 and 200 stems ha\u22121 at Esk and between 250 and 400 stems ha\u22121 at Herberton. The thinned plots were compared to un-thinned plots. Soil samples were collected to measure labile C and N. Leaf samples were collected from C. variegata and C. citriodora in Esk and Herberton respectively. Thinning did not change soil total C, total N, \u03b415N and inorganic N at either Esk or Herberton. However, at Esk, intensive thinning resulted in decreases in water soluble total N (WSTN). Foliar \u03b413C did not vary with respect to thinning whereas foliar \u03b415N values were more enriched in thinned areas than those of un-thinned plots. The stepwise linear regression indicated that both foliar total N and \u03b415N were explained mainly by soil TN and WSTN. Thinning did not change soil C and N most likely due to the retention of thinned materials on site and their incorporation into soil. Foliar \u03b413C was not thinning-dependent due to homeostatic maintenance of the ratio of intercellular to ambient CO2 concentrations during photosynthesis. In our study, soil N was not a limiting factor for foliar N, however, foliar N was mainly driven by WSTN which may foreshadow a possible N limitation in severely thinned plots in the long term. We conclude that forest thinning does not decrease soil C and N availability in native Corymbia forests for several years post-thinning if the thinned materials are retained on site.", "keywords": ["570", "Corymbia spp", "Inorganic nitrogen", "stable isotopes", "veterinary and food sciences", "eucalyptus spp", "Other environmental sciences not elsewhere classified", "FoR 06 (Biological Sciences)", "Stable isotopes", "Farm forestry", "580", "Agricultural", "farm forestry", "FoR 07 (Agricultural and Veterinary Sciences)", "inorganic nitrogen", "04 agricultural and veterinary sciences", "15. Life on land", "corymbia spp", "Environmental sciences", "Biological sciences", "Eucalyptus spp", "070501 Agroforestry", "Water soluble total N and C", "0401 agriculture", " forestry", " and fisheries", "water soluble total N and C", "FoR 05 (Environmental Sciences)"]}, "links": [{"href": "https://doi.org/10.1007/s11104-016-3052-5"}, {"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/s11104-016-3052-5", "name": "item", "description": "10.1007/s11104-016-3052-5", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s11104-016-3052-5"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-09-10T00:00:00Z"}}, {"id": "10.1016/j.agee.2006.09.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:19Z", "type": "Journal Article", "created": "2006-11-14", "title": "Influence Of No-Tillage On The Distribution And Lability Of Phosphorus In Finnish Clay Soils", "description": "Abstract No-tillage (NT) is a method adopted to reduce erosion and particulate phosphorus (P) load from arable land to watercourses. However, it has been found to increase the loss of dissolved P with surface runoff, but the reasons for that have rarely been examined in detail. The objective of the present study was to determine the chemical factors explaining this response by investigating the impact of NT on the type and distribution of P reserves as well as on organic carbon (C) in the 0\u201335\u00a0cm topsoil layer of clay soil profiles (Vertic Cambisols). Soil samples were taken from two experimental fields (Jokioinen and Aurajoki) at 0\u20135, 5\u201320 and 20\u201335\u00a0cm depths in conventionally tilled (CT) and non-tilled (for 4\u20135 years) plots. The plots had been cultivated and fertilized according to the common field practices in Finland (15\u201318\u00a0kg\u00a0P and 100\u2013128\u00a0kg\u00a0N\u00a0ha \u22121 \u00a0year \u22121 ). Inorganic and organic P reserves characterized by a modified Chang and Jackson fractionation procedure were not significantly affected by the cultivation methods. However, in the uppermost soil layer (0\u20135\u00a0cm) in NT of the Jokioinen field, the labile P determined by water extraction (P w ) increased significantly, whereas the increase in P extracted with acid ammonium acetate (P AAC ) remained statistically insignificant. The increase in labile P coincided with a significant increase in organic carbon (C), which supports the theory that competition between organic anions and phosphate for the same sorption sites on oxide surfaces will enhance the lability of soil P. In the Aurajoki field with distinct soil cracking, P w and P AAC were not affected by NT in the uppermost soil layer, but they increased in the deepest soil layer (20\u201335\u00a0cm) concomitantly with an increase in Al-bound P and organic C. However, the increases were not statistically significant. In both fields, soil acidification due to the repeated application of N fertilizers at a shallow soil depth as well as the accumulation of organic C lowered pH of the uppermost soil layer in NT compared to the deeper soil layers. The results indicated that even short-term NT can increase the labile P in clay soil. However, further studies are needed to assess the long-term changes in lability of surface soil P and, consequently, the possible need for readjustment of the fertilization level in NT.", "keywords": ["suorakylv\u00f6", "2. Zero hunger", "330", "no-tillage", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "puskurikyky", "6. Clean water", "ploughing", "inorganic phosphorus", "kynt\u00f6", "Suomi", "clay soils", "0401 agriculture", " forestry", " and fisheries", "Ka", "savimaat", "water-soluble phosphorus", "phosphorus", "fosfori", "P buffering capacit", "vesiliukoinen fosfori", "Finland", "ep\u00e4orgaaninen fosfori", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2006.09.012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2006.09.012", "name": "item", "description": "10.1016/j.agee.2006.09.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2006.09.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-05-01T00:00:00Z"}}, {"id": "10.1016/j.agee.2010.10.001", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:15:22Z", "type": "Journal Article", "created": "2010-10-29", "title": "Soil Properties, Crop Production And Greenhouse Gas Emissions From Organic And Inorganic Fertilizer-Based Arable Cropping Systems", "description": "Organic and conventional farming practices differ in the use of several management strategies, including use of catch crops, green manure, and fertilization, which may influence soil properties, greenhouse gas emissions and productivity of agroecosystems. An 11-yr-old field experiment on a sandy loam soil in Denmark was used to compare several crop rotations with respect to a range of physical, chemical and biological characteristics related to carbon (C) and nitrogen (N) flows. Four organic rotations and an inorganic fertilizer-based system were selected to evaluate effects of fertilizer type, catch crops, of grass-clover used as green manure, and of animal manure application. Soil was sampled from winter wheat and spring barley plots on 19 September 2007, 14 April 2008 and 22 September 2008, i.e. before, during, and after the growth season. The soils were analyzed for multiple attributes: total soil organic carbon (SOC), total N, microbial biomass N (MBN), potentially mineralizable N (PMN), and levels of potential ammonium oxidation (PAO) and denitrifying enzyme activity (DEA). In situ measurements of soil heterotrophic carbon dioxide (CO2) respiration and nitrous oxide emissions were conducted in plots with winter wheat. In April 2008, prior to field operations, intact soil cores were collected at two depths (0\u20135 and 5\u201310 cm) in plots under winter wheat. Water retention characteristics of each core were determined and used to calculate relative gas diffusivity (DP/Do). Finally, crop growth was monitored and grain yields measured at harvest maturity. The different management strategies between 1997 and 2007 led to soil carbon inputs that were on average 18\u201368% and 32\u201391% higher in the organic than inorganic fertilizer-based rotations for the sampled winter wheat and spring barley crops, respectively. Nevertheless, SOC levels in 2008 were similar across systems. The cumulative soil respiration for the period February to August 2008 ranged between 2 and 3 t CO2\u2013C ha\u22121 and was correlated (r = 0.95) with average C inputs. In the organic cropping systems, pig slurry application and inclusion of catch crops generally increased soil respiration, PMN and PAO. At field capacity, relative gas diffusivity at 0\u20135 cm depth was >50% higher in the organic than the inorganic fertilizer-based system (P < 0.05). Crop yields in 2008 were generally lower in the low-input organic rotations than in the high-input inorganic fertilizer-based system; only spring barley in rotations with pig slurry application and incorporation of a catch crop prior to sowing obtained grain yields similar to levels achieved in the system where inorganic fertilizer was applied. These results suggest that within organic cropping systems, both microbial activity and crop yields could be enhanced through inclusion of catch crops. However, the timing of catch crop incorporation is critical.", "keywords": ["2. Zero hunger", "microbial biomass", "Nutrient turnover", "inorganic fertilizer", "15. Life on land", "potential ammonium oxidation", "Air and water emissions", "6. Clean water", "12. Responsible consumption", "denitrifier enzyme activity", "Soil biology", "/dk/atira/pure/core/keywords/Life", "13. Climate action", "potential mineralizable nitrogen", "catch drop", "gas diffusivity", "11. Sustainability", "Former LIFE faculty"]}, "links": [{"href": "https://doi.org/10.1016/j.agee.2010.10.001"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Agriculture%2C%20Ecosystems%20%26amp%3B%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.agee.2010.10.001", "name": "item", "description": "10.1016/j.agee.2010.10.001", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.agee.2010.10.001"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2010-12-01T00:00:00Z"}}, {"id": "10.1016/j.envres.2024.118880", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:06Z", "type": "Journal Article", "created": "2024-04-04", "title": "Unveiling the capacity of bioaugmentation application, in comparison with biochar and rhamnolipid for TPHs degradation in aged hydrocarbons polluted soil", "description": "Persistent, aged hydrocarbons in soil hinder remediation, posing a significant environmental threat. While bioremediation offers an environmentally friendly and cost-effective approach, its efficacy for complex contaminants relies on enhancing pollutant bioavailability. This study explores the potential of immobilized bacterial consortia combined with biochar and rhamnolipids to accelerate bioremediation of aged total petroleum hydrocarbon (TPH)-contaminated soil. Previous research indicates that biochar and biosurfactants can increase bioremediation rates, while mixed consortia offer sequential degradation and higher hydrocarbon mineralization. The present investigation aimed to assess whether combining these strategies could further enhance degradation in aged, complex soil matrices. The bioaugmentation (BA) with bacterial consortium increased the TPHs degradation in aged soil (over 20% compared to natural attenuation - NA). However, co-application of BA with biochar and rhamnolipid higher did not show a statistically prominent synergistic effect. While biochar application facilitated the maintenance of hydrocarbon degrading bacterial consortium in soil, the present study did not identify a direct influence in TPHs degradation. The biochar application in contaminated soil contributed to TPHs adsorption. Rhamnolipid alone slightly increased the TPHs biodegradation with NA, while the combined bioaugmentation treatment with rhamnolipid and biochar increased the degradation between 27.5 and 29.8%. These findings encourage further exploration of combining bioaugmentation with amendment, like biochar and rhamnolipid, for remediating diverse environmental matrices contaminated with complex and aged hydrocarbons.", "keywords": ["Qu\u00edmica agr\u00edcola", "Bioqu\u00edmica", "Biolog\u00eda molecular", "Rhamnolipids", "Molecular biology", "Chemistry", " Inorganic", "Biochemistry", "Qu\u00edmica inorg\u00e1nica", "Hydrocarbons", "Inorganic", "Chemistry", "Biochar", "Soil", "Bioaugmentation", "Agricultural chemistry", "Biodegradation", " Environmental", "Petroleum", "Recalcitrant hydrocarbons", "Charcoal", "Biodegradation", "Soil Pollutants", "TPHs polluted soils", "Glycolipids", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1016/j.envres.2024.118880"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.envres.2024.118880", "name": "item", "description": "10.1016/j.envres.2024.118880", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.envres.2024.118880"}, {"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": "10.1016/j.firesaf.2019.102940", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:10Z", "type": "Journal Article", "created": "2019-12-23", "title": "Haze emissions from smouldering peat: The roles of inorganic content and bulk density", "description": "Abstract Smouldering peat fires are reported across continents and their emissions result in regional haze crisis (large scale accumulation of smoke at low altitudes) and large carbon foot prints. Inorganic content (IC) and bulk density vary naturally in peatlands and are among the important parameters governing peat fires. However, their roles in fire emissions remain unknown. In this work, bench-scale burning of sphagnum peat conditioned to different values of IC and bulk densities were conducted in the laboratory environment. Mass loss rate, spread rate and transient emissions of 20 gas species and particles (PM10, PM2.5 and PM1) were simultaneously investigated. We found that peat with 50% moisture content can self-sustain smouldering propagation if IC is less than 40%, or its bulk density is lower than 287.5\u202fkg\u202fm\u22123. Increasing IC or bulk density decreases peat mass loss rate and spread rate. High IC peat releases lower gas fluxes (especially for CH4 and NH3) throughout the experiment. In the ignition stage, increasing IC leads to an increase in particles with diameter between 1 and 2.5\u202f\u03bcm; in the fire spread stage, IC has no influence on the particle fluxes. In contrast, increasing bulk density delays both gas and particle emission fluxes without altering the smoke composition significantly. The fundamental understanding of how soil properties affect peat wildfires facilitates the development of mitigation technologies against haze.", "keywords": ["SHALLOW", "Technology", "Engineering", " Civil", "550", "Inorganic content", "Materials Science", "0904 Chemical Engineering", "TRANSIENT GAS", "Materials Science", " Multidisciplinary", "02 engineering and technology", "Pollutant", "MOISTURE", "Civil Engineering", "01 natural sciences", "630", "COMBUSTION", "Engineering", "0204 chemical engineering", "FIRES", "0105 earth and related environmental sciences", "Multidisciplinary", "Science & Technology", "Civil", "Peat", "15. Life on land", "Bulk density", "IGNITION", "0911 Maritime Engineering", "13. Climate action", "PARTICLE EMISSIONS", "SPREAD", "Biomass combustion"]}, "links": [{"href": "https://doi.org/10.1016/j.firesaf.2019.102940"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Fire%20Safety%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.firesaf.2019.102940", "name": "item", "description": "10.1016/j.firesaf.2019.102940", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.firesaf.2019.102940"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-05-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2012.04.019", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:52Z", "type": "Journal Article", "created": "2012-05-03", "title": "Ammonia Volatilization Losses From Surface-Applied Urea With Urease And Nitrification Inhibitors", "description": "Abstract Urease inhibitor (UI) and nitrification inhibitor (NI) have the potential to improve N-use efficiency of applied urea and minimize N losses via gaseous emissions of ammonia (NH3) to the atmosphere and nitrate ( NO 3 \u2212 ) leaching into surface and ground water bodies. There is a growing interest in the formulations of coating chemical fertilizers with both UI and NI. However, limited information is available on the combined use of UI and NI applied with urea fertilizer. Therefore the aim of this study was to investigate the effects of treating urea with both UI and NI to minimize NH3 volatilization. Two experiments were set up in volatilization chambers under controlled conditions to examine this process. In the first experiment, UR was treated with the urease inhibitor NBPT [N-(n-butyl) thiophosphoric acid triamide] at a rate of 1060\u00a0mg\u00a0kg\u22121 urea and/or with the nitrification inhibitor DCD (dicyandiamide) at rates equivalent to 5 or 10% of the urea N. A randomized experimental design with five treatments and five replicates was used: 1) UR, 2) UR\u00a0+\u00a0NBPT, 3) UR\u00a0+\u00a0DCD 10%, 4) UR\u00a0+\u00a0NBPT\u00a0+\u00a0DCD 5%, and 5) UR\u00a0+\u00a0NBPT\u00a0+\u00a0DCD 10%. The fertilizer treatments were applied to the surface of an acidic Red Latosol soil moistened to 60% of the maximum water retention and placed inside volatilization chambers. Controls chambers were added to allow for NH3 volatilized from unfertilized soil or contained in the air that swept over the soil surface. The second experiment had an additional treatment with surface-applied DCD. The chambers were glass vessels (1.5\u00a0L) fit with air inlet and outlet tubings to allow air to pass over the soil. Ammonia volatilized was swept and carried to a flask containing a boric acid solution to trap the gas and then measured daily by titration with a standardized H2SO4 solution. Continuous measurements were recorded for 19 and 23 days for the first and second experiment, respectively. The soil samples were then analyzed for UR\u2013, NH 4 + \u2013 , and NO 3 \u2212 \u2013 N . Losses of NH3 by volatilization with unamended UR ranged from 28 to 37% of the applied N, with peak of losses observed the third day after fertilization. NBPT delayed the peak of NH3 losses due to urease inhibition and reduced NH3 volatilization between 54 and 78% when compared with untreated UR. Up to 10 days after the fertilizer application, NH3 losses had not been affected by DCD in the UR or the UR\u00a0+\u00a0NBPT treatments; thereafter, NH3 volatilization tended to decrease, but not when DCD was present. As a consequence, the addition of DCD caused a 5\u201316% increase in NH3 volatilization losses of the fertilizer N applied as UR from both the UR and the UR\u00a0+\u00a0NBPT treatments. Because the effectiveness of NBPT to inhibit soil urease activity was strong only in the first week, it could be concluded that DCD did not affect the action of NBPT but rather, enhanced volatilization losses by maintaining higher soil NH 4 + concentration and pH for a longer time. Depending on the combination of factors influencing NH3 volatilization, DCD could even offset the beneficial effect of NBPT in reducing NH3 volatilization losses.", "keywords": ["soil chemistry", "Urease inhibitors", "Surface treatment", "nutrient use efficiency", "Ammonia volatilization", "01 natural sciences", "630", "Ammonia", "Oxidation", "DCD", "Urea", "Urea fertilizers", "Fertilizers", "volatilization", "Groundwater", "0105 earth and related environmental sciences", "soil surface", "coating", "fertilizer application", "Urease inhibitor", "04 agricultural and veterinary sciences", "Nitrification inhibitor", "Nitrification", "Inorganic acids", "6. Clean water", "enzyme activity", "inhibitor", "pH effects", "Metabolism", "NBPT", "Denitrification", "Leaching", "Soils", "0401 agriculture", " forestry", " and fisheries", "Experiments", "Stabilized fertilizer"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2012.04.019"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2012.04.019", "name": "item", "description": "10.1016/j.soilbio.2012.04.019", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2012.04.019"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-09-01T00:00:00Z"}}, {"id": "10.1016/j.scitotenv.2014.02.103", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:40Z", "type": "Journal Article", "created": "2014-03-19", "title": "Carbon Dioxide Emissions From Semi-Arid Soils Amended With Biochar Alone Or Combined With Mineral And Organic Fertilizers", "description": "Semi-arid soils cover a significant area of Earth's land surface and typically contain large amounts of inorganic C. Determining the effects of biochar additions on CO2 emissions from semi-arid soils is therefore essential for evaluating the potential of biochar as a climate change mitigation strategy. Here, we measured the CO2 that evolved from semi-arid calcareous soils amended with biochar at rates of 0 and 20tha(-1) in a full factorial combination with three different fertilizers (mineral fertilizer, municipal solid waste compost, and sewage sludge) applied at four rates (equivalent to 0, 75, 150, and 225kg potentially available Nha(-1)) during 182 days of aerobic incubation. A double exponential model, which describes cumulative CO2 emissions from two active soil C compartments with different turnover rates (one relatively stable and the other more labile), was found to fit very well all the experimental datasets. In general, the organic fertilizers increased the size and decomposition rate of the stable and labile soil C pools. In contrast, biochar addition had no effects on any of the double exponential model parameters and did not interact with the effects ascribed to the type and rate of fertilizer. After 182 days of incubation, soil organic and microbial biomass C contents tended to increase with increasing the application rates of organic fertilizer, especially of compost, whereas increasing the rate of mineral fertilizer tended to suppress microbial biomass. Biochar was found to increase both organic and inorganic C contents in soil and not to interact with the effects of type and rate of fertilizer on C fractions. As a whole, our results suggest that the use of biochar as enhancer of semi-arid soils, either alone or combined with mineral and organic fertilizers, is unlikely to increase abiotic and biotic soil CO2 emissions.", "keywords": ["Bioqu\u00edmica", "Mineral fertilizer", "Carbonates", "Waste Disposal", " Fluid", "01 natural sciences", "7. Clean energy", "12. Responsible consumption", "Soil", "Inorganic C", "11. Sustainability", "Fertilizers", "Environmental Restoration and Remediation", "0105 earth and related environmental sciences", "2. Zero hunger", "Soil organic matter", "Air Pollutants", "Minerals", "Agriculture", "04 agricultural and veterinary sciences", "Carbon Dioxide", "15. Life on land", "6. Clean water", "Biochar", "13. Climate action", "Charcoal", "0401 agriculture", " forestry", " and fisheries", "Organic amendment"]}, "links": [{"href": "https://doi.org/10.1016/j.scitotenv.2014.02.103"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Science%20of%20The%20Total%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.scitotenv.2014.02.103", "name": "item", "description": "10.1016/j.scitotenv.2014.02.103", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.scitotenv.2014.02.103"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2007.08.021", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:48Z", "type": "Journal Article", "created": "2007-11-09", "title": "Observed And Modelled Soil Carbon And Nitrogen Changes After Planting A Pinus Radiata Stand Onto Former Pasture", "description": "Abstract After reforesting pasture land, it is often observed that soil carbon stocks decrease. The present work reports findings from a site near Canberra, Australia, where a pine forest (Pinus radiata) was planted onto a former unimproved pasture site. We report a number of detailed observations seeking to understand the basis of the decline in soil C stocks. This is supported by simulations using the whole-ecosystem carbon and nitrogen cycling model CenW 3.1. The model indicated that over the first 18 years after forest establishment, the site lost about 5.5\u00a0t\u00a0C\u00a0ha\u22121 and 588\u00a0kgN\u00a0ha\u22121 from the soil. The C:N ratio of soil organic matter did not change in a systematic manner over the observational period. Carbon and nitrogen stocks contained in the biomass of the 18-year old pine stand exceeded that of the pasture by 88\u00a0t\u00a0C\u00a0ha\u22121 and 393\u00a0kgN\u00a0ha\u22121. An additional 6.1\u00a0t\u00a0C\u00a0ha\u22121 and 110\u00a0kgN\u00a0ha\u22121 accumulated in above-ground litter. These changes, together with the vertical distribution of carbon and nitrogen in the soil, agreed well with the observation at the site. It was assumed that over 18 years, there was also a loss of 86\u00a0kgN\u00a0ha\u22121 from the ecosystem because of normal gaseous losses during nitrogen turn-over and a small amount of nitrogen leaching. Those losses could not be replenished in the pine system without symbiotic biological nitrogen fixation, and there were no fertiliser additions. A simple mass balance approach indicated that the amount of nitrogen accumulating in plant biomass and the litter layer plus the assumed nitrogen loss from the site matched the amount of nitrogen lost from the soil organic nitrogen pool. This reduction in soil nitrogen, together with an unchanged C:N ratio, provided a simple and internally consistent explanation for the observed reduction of soil carbon after reforestation. It supports the general notion that trends in soil carbon upon land-use change can often be controlled by the possible fates of available soil nitrogen.", "keywords": ["550", "Nitrogen", "CenW", "Reforesting pasture lands", "910", "Carbon inorganic compounds", "01 natural sciences", "Ecosystems", "Nitrogen compounds", "C:N ratio", "Nitrogen fixation", "Pasture", "Biomass", "Reforestation", "0105 earth and related environmental sciences", "Keywords: Biological materials", "Pinus radiata", "Nitrogen cycling models", "modeling", "04 agricultural and veterinary sciences", "15. Life on land", "carbon sequestration", "Soil carbon", "Pine", "coniferous tree", "Pine forest", "Soils", "0401 agriculture", " forestry", " and fisheries", "Model"], "contacts": [{"organization": "Roger M. Gifford, LanBin Guo, Miko U. F. Kirschbaum, Miko U. F. Kirschbaum,", "roles": ["creator"]}]}, "links": [{"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/61078/5/Kirschbaum_Observed_and_modelled_soil_carbon.pdf.jpg"}, {"href": "https://openresearch-repository.anu.edu.au/bitstream/1885/61078/7/01_Kirschbaum_Observed_and_modelled_soil_2008.pdf.jpg"}, {"href": "https://doi.org/10.1016/j.soilbio.2007.08.021"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2007.08.021", "name": "item", "description": "10.1016/j.soilbio.2007.08.021", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2007.08.021"}, {"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": "10.1016/j.soilbio.2012.02.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:51Z", "type": "Journal Article", "created": "2012-03-06", "title": "Addition Of Organic And Inorganic P Sources To Soil - Effects On P Pools And Microorganisms", "description": "Abstract Phosphorus deficiency is wide-spread due to the poor solubility of soil P and the rapid formation of poorly available P after P addition. Microbes play a key role in soil P dynamics by P uptake, solubilisation and mineralisation. Therefore a better understanding of the relationship between type of P amendment, microbial activity and changes in soil P pools is important for a better management of soil P. A P deficient soil was amended with two composts (low P or high P), two crop residues (low P or high P), and inorganic P (KH2PO4) at low and high P, and incubated for 56 days. Composts were added at 20\u00a0g\u00a0kg\u22121 resulting in a total P addition of 4.1\u00a0mg\u00a0kg\u22121 soil with the low P compost and 33.2\u00a0mg\u00a0kg\u22121 soil with the high P compost. The same amount of P was added with the other amendments (residues and inorganic P). All amendments increased cumulative respiration, but microbial biomass and the abundance of bacteria and fungi (assessed by phospholipid fatty acid analysis) increased significantly only in soils with organic amendments, with greater increases with residues. The concentration of the inorganic P pools NaHCO3-Pi, NaOH-Pi and HCl-P increased significantly within 5\u00a0h after amendment, particularly with high P amendments. Over the following 56 days, labile inorganic P was converted mainly into non-labile inorganic P with inorganic P addition whereas labile and non-labile organic P was formed with organic amendments. It is concluded that organic P sources, particularly those with high P concentration can stimulate the formation of organic P forms in soils which may provide a long-term slow release P source for plants and soil organisms.", "keywords": ["P pools", "2. Zero hunger", "Microbial biomass", "Compost", "Residues", "04 agricultural and veterinary sciences", "15. Life on land", "Organic P", "01 natural sciences", "630", "6. Clean water", "Inorganic P", "0401 agriculture", " forestry", " and fisheries", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2012.02.013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2012.02.013", "name": "item", "description": "10.1016/j.soilbio.2012.02.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2012.02.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-06-01T00:00:00Z"}}, {"id": "10.1016/j.soilbio.2012.10.013", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:16:52Z", "type": "Journal Article", "created": "2012-11-02", "title": "Inorganic And Organic Carbon Dynamics In A Limed Acid Soil Are Mediated By Plants", "description": "Abstract Lime is commonly used to overcome soil acidification in agricultural production systems; however, its impact on inorganic and organic soil carbon dynamics remains largely unknown. In a column experiment, we monitored rhizosphere effects on lime dissolution, CO2 effluxes, and the concentrations of dissolved inorganic carbon (DIC) and dissolved organic carbon (DOC) in leachate from an acidic Kandosol. The experiment consisted of four treatments viz: soil only (control), soil\u00a0+\u00a0lime, soil\u00a0+\u00a0wheat, and soil\u00a0+\u00a0lime\u00a0+\u00a0wheat. We measured CO2-C effluxes at 7, 43 and 98 days after planting (DAP) and leachate was collected at 56 and 101 DAP. The soil CO2-C efflux rate increased significantly with lime addition at 7 and 43 DAP compared to control. At 43 DAP, the largest increase in CO2-C effluxes was observed in the lime\u00a0+\u00a0wheat treatment. However, at 98 DAP similar CO2-C effluxes were observed from wheat and lime\u00a0+\u00a0wheat treatments, suggesting that most of the lime was dissolved in the lime\u00a0+\u00a0wheat treatment. Both DOC and DIC concentrations in the leachate increased significantly with lime and wheat only treatments (cf. control). In contrast to DOC, there was an increase in the DIC concentration in the soil leachate from lime\u00a0+\u00a0wheat treatment columns at 101 DAP (significant wheat\u00a0\u00d7\u00a0lime interaction), thus, accentuating the pronounced role of wheat roots. We conclude that plant mediated dissolution of lime increased the concentration of DIC in the soil leachate, while both liming and presence of plants enhanced DOC leaching.", "keywords": ["2. Zero hunger", "Dissolved inorganic carbon", "Carbon effluxes", "Rhizosphere", "2404 Microbiology", "0401 agriculture", " forestry", " and fisheries", "Liming", "04 agricultural and veterinary sciences", "15. Life on land", "1111 Soil Science", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.soilbio.2012.10.013"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Biology%20and%20Biochemistry", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soilbio.2012.10.013", "name": "item", "description": "10.1016/j.soilbio.2012.10.013", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soilbio.2012.10.013"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-02-01T00:00:00Z"}}, {"id": "10.1023/b:fres.0000019043.33580.a6", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:23Z", "type": "Journal Article", "created": "2004-03-10", "title": "Nitrogen Fertilizer Equivalencies Of Organics Of Differing Quality And Optimum Combination With Inorganic Nitrogen Source In Central Kenya", "description": "Decline in crop yields is a major problem facing smallholder farmers in Kenya and the entire Sub-Saharan region. This is attributed mainly to the mining of major nutrients due to continuous cropping without addition of adequate external nutrients. In most cases inorganic fertilizers are expensive, hence unaffordable to most smallholder farmers. Although organic nutrient sources are available, information about their potential use is scanty. A field experiment was set up in the sub-humid highlands of Kenya to establish the chemical fertilizer equivalency values of different organic materials based on their quality. The experiment consisted of maize plots to which freshly collected leaves of Tithonia diversifolia (tithonia), Senna spectabilis (senna) and Calliandra calothyrsus (calliandra) (all with %N>3) obtained from hedgerows grown ex situ (biomass transfer) and urea (inorganic nitrogen source) were applied. Results obtained for the cumulative above ground biomass yield for three seasons indicated that a combination of both organic and inorganic nutrient source gave higher maize biomass yield than when each was applied separately. Above ground biomass yield production in maize (t ha\u22121) from organic and inorganic fertilization was in the order of senna+urea (31.2), tithonia+urea (29.4), calliandra+urea (29.3), tithonia (28.6), senna (27.9), urea (27.4), calliandra (25.9), and control (22.5) for three cumulative seasons. On average, the three organic materials (calliandra, senna and tithonia) gave fertilizer equivalency values for the nitrogen contained in them of 50, 87 and 118%, respectively. It is therefore recommended that tithonia biomass be used in place of mineral fertilizer as a source of nitrogen. The high equivalency values can be attributed to the synergetic effects of nutrient supply, and improved moisture and soil physical conditions of the mulch. However, for sustainable agricultural production, combination with mineral fertilizer would be the best option.", "keywords": ["2. Zero hunger", "Organic", "biomass", "N fertilizer equivalency", "yields", "abonos nitrogenados", "04 agricultural and veterinary sciences", "910", "15. Life on land", "maize", "N-sources", "6. Clean water", "ma\u00edz", "12. Responsible consumption", "Inorganic", "zea mays", "nitrogen fertilizers", "biomasa", "0401 agriculture", " forestry", " and fisheries", "organic fertilizers", "inorganic fertilizers", "abonos org\u00e1nicos", "abonos inorg\u00e1nicos", "rendimiento"]}, "links": [{"href": "https://doi.org/10.1023/b:fres.0000019043.33580.a6"}, {"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": "10.1023/b:fres.0000019043.33580.a6", "name": "item", "description": "10.1023/b:fres.0000019043.33580.a6", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/b:fres.0000019043.33580.a6"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2004-02-01T00:00:00Z"}}, {"id": "10.1023/b:biog.0000005340.47365.61", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-05-24T16:17:23Z", "type": "Journal Article", "created": "2003-11-26", "title": "Inorganic N Turnover And Availability In Annual- And Perennial-Dominated Soils In A Northern Utah Shrub-Steppe Ecosystem", "description": "The exotic annual grass Bromus tectorum has replaced thousands of hectares of native peren- nial vegetation in semi-arid ecosystems of the western United States. Inorganic N availability and pro- duction were compared in soil from monodominant patches of Bromus tectorum, the perennial bunch- grass Elymus elymoides, and the shrub Artemisia tridentata, in Curlew Valley, a salt-desert shrub site in Northern Utah. Bromus-dominated soil had greater %N in the top 10 cm than Artemisia or Elymus- dominated soils. As determined by spring isotope-dilution assays, gross mineralization and nitrification rates were higher in Bromus-dominated than Artemisia-dominated soils, but gross rates of NH4 and NO3 consumption were also higher. Litterbags had greater mass loss and N mineralization when buried in Bromus stands than in Artemisia stands, indicating the soil environment under the annual grass pro- motes decomposition. As determined by nitrification potential assays, nitrifier populations were higher under Bromus than under Artemisia and Elymus. Soil inorganic N concentrations were similar among vegetation types in the spring, but NO3 accumulated under Bromus once it had senesced. An in situ net mineralization assay conducted in autumn indicated that germinating Bromus seedlings are a strong sink for soil NO3 , and that net nitrification is inherently low in soils under Artemisia and Elymus. Results of the study suggest that differences in plant uptake and the soil environment promote greater inorganic N availability under Bromus than under perennial species at the site.", "keywords": ["ecosystem", "580", "0106 biological sciences", "Utah", "inorganic", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "Biology", "01 natural sciences", "nitrogen"], "contacts": [{"organization": "Booth, M. S., Stark, John M., Caldwell, M. M.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1023/b:biog.0000005340.47365.61"}, {"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": "10.1023/b:biog.0000005340.47365.61", "name": "item", "description": "10.1023/b:biog.0000005340.47365.61", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/b:biog.0000005340.47365.61"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2003-12-01T00:00:00Z"}}, {"id": "10.1088/1757-899X/364/1/012092", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:06Z", "type": "Journal Article", "created": "2018-06-18", "title": "New insights on protective treatments for marble by FIB-SEM", "description": "In this study, we investigated by FIB-SEM the microstructure of protective coatings formed by two inorganic treatments (namely, ammonium oxalate and ammonium phosphate solutions), with the aim of identifying the factors limiting the protective efficacy of the coatings and outlining possible improvement strategies. In the case of the oxalate treatment, the resulting layer of whewellite was found to contain vertical channels, which can allow water to reach the marble surface and trigger dissolution. Possible prevention of the formation of these channels by addition of a calcium source to the oxalate solution was attempted, but even micromolar additions led to rapid precipitation in the solution. In the case of the phosphate treatment, the resulting hydroxyapatite and octacalcium phosphate coating was found to be cracked and porous. To prevent cracks and pores, diminishing the ammonium phosphate concentration and adding ethanol to the solution were found to be effective strategies, as cracks were prevented and pores were reduced almost to zero. The resulting protective efficacy of the coating was found to be significantly improved, although still not perfect.", "keywords": ["Hydroxyapatite; Inorganic coatings; Marble; Calcium oxalate; Protective coatings", "FIB; XRD; Inorganic protectives; Hydroxyapatite; Calcium phosphates; Calcium oxalate; Porosity; Marble; Acid attack", "02 engineering and technology", "ING-IND/22 Scienza e tecnologia dei materiali", "IOP Conference Series: Materials Science and Engineering", "0210 nano-technology", "6. Clean water"]}, "links": [{"href": "https://cris.unibo.it/bitstream/11585/643033/3/Sassoni%20et%20al%20%282018%29%20New%20Insights%20by%20FIB-SEM%20on%20Protective%20Treatments.pdf"}, {"href": "https://doi.org/10.1088/1757-899X/364/1/012092"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/IOP%20Conference%20Series%3A%20Materials%20Science%20and%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1088/1757-899X/364/1/012092", "name": "item", "description": "10.1088/1757-899X/364/1/012092", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1088/1757-899X/364/1/012092"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2018-06-01T00:00:00Z"}}, {"id": "10.1038/srep08280", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:38Z", "type": "Journal Article", "created": "2015-02-06", "title": "Convergence Of Soil Nitrogen Isotopes Across Global Climate Gradients", "description": "Abstract

Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15N:14N ratio of soil organic matter across climate gradients provide key insights into understanding global patterns of N cycling. In synthesizing data from over 6000 soil samples, we show strong global relationships among soil N isotopes, mean annual temperature (MAT), mean annual precipitation (MAP) and the concentrations of organic carbon and clay in soil. In both hot ecosystems and dry ecosystems, soil organic matter was more enriched in 15N than in corresponding cold ecosystems or wet ecosystems. Below a MAT of 9.8\uffc2\uffb0C, soil \uffce\uffb415N was invariant with MAT. At the global scale, soil organic C concentrations also declined with increasing MAT and decreasing MAP. After standardizing for variation among mineral soils in soil C and clay concentrations, soil \uffce\uffb415N showed no consistent trends across global climate and latitudinal gradients. Our analyses could place new constraints on interpretations of patterns of ecosystem N cycling and global budgets of gaseous N loss.

", "keywords": ["N-15 Natural-Abundance", "550", "Ecosystem ecology", "TROPICAL FORESTS", "Organic chemistry", "Suelo", "Nitrogen cycle", "01 natural sciences", "Nutrient cycle", "cycle de l'azote", "CARBON", "Agricultural and Biological Sciences", "Soil", "Terrestrial ecosystem", "Isotopes", "https://purl.org/becyt/ford/1.6", "Soil water", "SDG 13 - Climate Action", "N-15 NATURAL-ABUNDANCE", "Climate change", "croisement de donn\u00e9es", "Milieux et Changements globaux", "SDG 15 \u2013 Leben an Land", "Global change", "SDG 15 - Life on Land", "2. Zero hunger", "106022 Mikrobiologie", "Climatic Factors", "Tropical Forests", "Ecology", "Geography", "Nitr\u00f3geno", "Nutrient Cycling", "FRACTIONATION", "Litter Decomposition", "ECOSYSTEM ECOLOGY", "Life Sciences", "ecosystem ecology", "Cycling", "Forestry", "Is\u00f3topos", "Carbon cycle", "04 agricultural and veterinary sciences", "Nitrogen Cycle", "Soil carbon", "6. Clean water", "Organic-Matter", "Earth and Planetary Sciences", "ORGANIC-MATTER", "Chemistry", "PRECIPITATION", "SDG 13 \u2013 Ma\u00dfnahmen zum Klimaschutz", "Physical Sciences", "106022 Microbiology", "carbone du sol", "Stable Isotope Analysis of Groundwater and Precipitation", "Ecosystem Functioning", "570", "STABLE ISOTOPE", "Biogeochemical Cycling of Nutrients in Aquatic Ecosystems", "Stable isotope analysis", "Nitrogen", "[SDE.MCG]Environmental Sciences/Global Changes", "Soil Science", "stable isotope analysis;ecosystem ecology", "Article", "Environmental science", "LITTER DECOMPOSITION", "sol min\u00e9ral", "INORGANIC NITROGEN", "Geochemistry and Petrology", "stable isotope analysis", "Carbono", "Environmental Chemistry", "Factores Clim\u00e1ticos", "https://purl.org/becyt/ford/1", "Biology", "Ecosystem", "0105 earth and related environmental sciences", "Soil science", "Soil organic matter", "Soil Fertility", "climat", "AVAILABILITY", "Nitrogen Dynamics", "15. Life on land", "Carbon", "Inorganic", "NITROGEN", "MODEL", "[SDE.MCG] Environmental Sciences/Global Changes", "13. Climate action", "FOS: Biological sciences", "Environmental Science", "PATTERNS", "0401 agriculture", " forestry", " and fisheries", "Soil Carbon Dynamics and Nutrient Cycling in Ecosystems"]}, "links": [{"href": "https://scholars.unh.edu/context/faculty_pubs/article/1042/viewcontent/srep08280.pdf"}, {"href": "https://edoc.unibas.ch/37215/1/srep08280.pdf"}, {"href": "https://doi.org/10.1038/srep08280"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/srep08280", "name": "item", "description": "10.1038/srep08280", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/srep08280"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-02-06T00:00:00Z"}}, {"id": "10.1038/srep10892", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:17:38Z", "type": "Journal Article", "created": "2015-07-03", "title": "Improved Grazing Management May Increase Soil Carbon Sequestration In Temperate Steppe", "description": "Abstract

Different grazing strategies impact grassland plant production and may also regulate the soil carbon formation. For a site in semiarid temperate steppe, we studied the effect of combinations of rest, high and moderate grazing pressure over three stages of the growing season, on the process involved in soil carbon sequestration. Results show that constant moderate grazing (MMM) exhibited the highest root production and turnover accumulating the most soil carbon. While deferred grazing (RHM and RMH) sequestered less soil carbon compared to MMM, they showed higher standing root mass, maintained a more desirable pasture composition and had better ability to retain soil N. Constant high grazing pressure (HHH) caused diminished above- and belowground plant production, more soil N losses and an unfavorable microbial environment and had reduced carbon input. Reducing grazing pressure in the last grazing stage (HHM) still had a negative impact on soil carbon. Regression analyses show that adjusting stocking rate to ~5SE/ha with ~40% vegetation utilization rate can get the most carbon accrual. Overall, the soil carbon sequestration in the temperate grassland is affected by the grazing regime that is applied and grazing can be altered to improve soil carbon sequestration in the temperate steppe.

", "keywords": ["2. Zero hunger", "China", "Conservation of Natural Resources", "Carbon Compounds", " Inorganic", "Agriculture", "04 agricultural and veterinary sciences", "15. Life on land", "16. Peace & justice", "Article", "Soil", "Animals", "0401 agriculture", " forestry", " and fisheries", "Herbivory", "Nitrogen Compounds", "Sheep", " Domestic", "Soil Microbiology"]}, "links": [{"href": "https://doi.org/10.1038/srep10892"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Scientific%20Reports", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1038/srep10892", "name": "item", "description": "10.1038/srep10892", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1038/srep10892"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-07-03T00:00:00Z"}}, {"id": "10.1080/09064710.2022.2136583", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:01Z", "type": "Journal Article", "created": "2022-10-26", "title": "Exploring structural sediment connectivity via surface runoff in agricultural lands of Finland", "description": "Spatial information on the distribution of erosion areas and sediment transport pathways within agricultural landscapes is limited. Thus, we assess structural sediment connectivity via surface runoff by using a digital elevation model (2 \u00d7 2 m2) and RUSLE-based erosion estimates to compute index of connectivity (IC) and sediment delivery estimates. The variables were analyzed within and between two topographically contrasting subcatchments. We found greater spatial variability of IC within a subcatchment than between the subcatchments. The majority of field parcel areas (65%\u201397%) were structurally connected to adjacent open ditches and streams. Areas with high erosion estimates also tended to be structurally well-connected, both at the pixel (Pearson r = 0.58\u20130.63) and parcel scale (r = 0.49\u20130.67). The IC model was not highly sensitive to parameter variations. In contrast, the magnitude of sediment delivery estimates was highly sensitive to parameter variations. However, based on the high rank correlation (Spearman rs > 0.95) between computed sediment delivery estimates, the tool provided consistent information on potentially high sediment delivery areas. More empirical data and dynamic model applications could be applied to improve the accuracy of the estimates. The method provides a feasible tool to generate open data on connectivity.", "keywords": ["550", "ta1172", "rusle", "SB1-1110", "Inorganic Chemistry", "Sociology", "FOS: Chemical sciences", "FOS: Mathematics", "RUSLE", "ta218", "Connectivity", "Ecology", "connectivity index", "Plant culture", "lowlands", "FOS: Earth and related environmental sciences", "04 agricultural and veterinary sciences", "ta4111", "15. Life on land", "erosion", "59999 Environmental Sciences not elsewhere classified", "FOS: Sociology", "FOS: Biological sciences", "connectivity", "Medicine", "19999 Mathematical Sciences not elsewhere classified", "0401 agriculture", " forestry", " and fisheries", "69999 Biological Sciences not elsewhere classified", "Biotechnology"]}, "links": [{"href": "https://www.tandfonline.com/doi/pdf/10.1080/09064710.2022.2136583"}, {"href": "https://doi.org/10.1080/09064710.2022.2136583"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Acta%20Agriculturae%20Scandinavica%2C%20Section%20B%20%E2%80%94%20Soil%20%26amp%3B%20Plant%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/09064710.2022.2136583", "name": "item", "description": "10.1080/09064710.2022.2136583", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/09064710.2022.2136583"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-10-26T00:00:00Z"}}, {"id": "10.1093/nsr/nwab120", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:18:09Z", "type": "Journal Article", "created": "2021-06-29", "title": "Significant loss of soil inorganic carbon at the continental scale", "description": "Abstract

Widespread soil acidification due to atmospheric acid deposition and agricultural fertilization may greatly accelerate soil carbonate dissolution and CO2 release. However, to date, few studies have addressed these processes. Here, we use meta-analysis and nationwide-survey datasets to investigate changes in soil inorganic carbon (SIC) stocks in China. We observe an overall decrease in SIC stocks in topsoil (0\uffe2\uff80\uff9330\uffc2\uffa0cm) (11.33\uffc2\uffa0g C m\uffe2\uff80\uff932 yr\uffe2\uff80\uff931) from the 1980s to the 2010s. Total SIC stocks have decreased by \uffe2\uff88\uffbc8.99\uffc2\uffa0\uffc2\uffb1\uffc2\uffa02.24% (1.37\uffc2\uffa0\uffc2\uffb1\uffc2\uffa00.37\uffc2\uffa0Pg C). The average SIC losses across China (0.046 Pg C yr\uffe2\uff80\uff931) and in cropland (0.016 Pg C yr\uffe2\uff80\uff931) account for \uffe2\uff88\uffbc17.6%\uffe2\uff80\uff9324.0% of the terrestrial C sink and 57.1% of the soil organic carbon sink in cropland, respectively. Nitrogen deposition and climate change have profound influences on SIC cycling. We estimate that \uffe2\uff88\uffbc19.12%\uffe2\uff80\uff9319.47% of SIC stocks will be further lost by 2100. The consumption of SIC may offset a large portion of global efforts aimed at ecosystem carbon sequestration, which emphasizes the importance of achieving a better understanding of the indirect coupling mechanisms of nitrogen and carbon cycling and of effective countermeasures to minimize SIC loss.Although alpine meadows of Tibet are expected to be strongly affected by climatic warming, it remains unclear how soil organic C (SOC), total N (TN), ammonium N(NH4+-N), nitrate N(NO3+-N), and dissolved organic C (DOC) and N (DON) respond to warming. This study aims to investigate the responses of these C and N pools to short-term experimental warming in an alpine meadow of Tibet. A warming experiment using open top chambers was conducted in an alpine meadow at three elevations (i.e., a low (4313\uffe2\uff80\uff89m), mid-(4513\uffe2\uff80\uff89m), and high (4693\uffe2\uff80\uff89m) elevation) in May 2010. Topsoil (0\uffe2\uff80\uff9320\uffe2\uff80\uff89cm depth) samples were collected in July\uffe2\uff80\uff93September 2011. Experimental warming increased soil temperature by ~1\uffe2\uff80\uff931.4\uffc2\uffb0C but decreased soil moisture by ~0.04\uffe2\uff80\uff89m3m\uffe2\uff88\uff923. Experimental warming had little effects on SOC, TN, DOC, and DON, which may be related to lower warming magnitude, the short period of warming treatment, and experimental warming-induced soil drying by decreasing soil microbial activity. Experimental warming decreased significantly inorganic N at the two lower elevations,but had negligible effect at the high elevation. Our findings suggested that the effects of short-term experimental warming on SOC, TN and dissolved organic matter were insignificant, only affecting inorganic forms.

", "keywords": ["2. Zero hunger", "Technology", "T", "Science", "Altitude", "Q", "R", "04 agricultural and veterinary sciences", "15. Life on land", "Tibet", "Global Warming", "Carbon", "Soil", "Inorganic Chemicals", "13. Climate action", "Medicine", "0401 agriculture", " forestry", " and fisheries", "Organic Chemicals", "Nitrogen Compounds", "Research Article", "Environmental Monitoring"], "contacts": [{"organization": "Chengqun Yu, Gang Fu, Zhenxi Shen, Wei Sun, Xianzhou Zhang,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1155/2014/152576"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/The%20Scientific%20World%20Journal", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1155/2014/152576", "name": "item", "description": "10.1155/2014/152576", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1155/2014/152576"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-01-01T00:00:00Z"}}, {"id": "10.1594/pangaea.963212", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:24Z", "type": "Dataset", "title": "Stream water chemistry and landscape characteristics in Zackenberg Valley, NE Greenland summer 2021", "description": "The data contains water chemistry and spectral catchment NDVI for 14 streams in Zackenberg Valley in Northeast Greenland, sampled summer 2021 from 10th July to 15th September. We collected water samples for measuring water chemistry, and we determined landscape parameters using GIS based tools. The data was collected at three sampling periods in summer 2021 in the Zackenberg Research Station (74\u00b028'N, 20\u00b034'W). The area has a polar tundra climate with mean annual air temperature of -9.1 \u00b0C. Water chemistry (i.e. dissolved and particulate nitrogen, phosphorus, carbon; dissolved iron and silicate) and catchment characteristics (i.e. catchment area, altitude, slope, aspect, NDVI, snow cover) was measured for each of the 14 stream sites. Water chemistry samples were collected and analyzed using standard methods, and landscape characteristics were determined using GIS resources. The data was collected in order to study relationships between landscape characteristics and stream water chemistry. The water samples were collected by a team of two people, and the detailed methods are given below.", "keywords": ["inorganic", "median", "Nitrate Nitrogen", "Nitrogen", " inorganic", " dissolved/Nitrogen", " total dissolved ratio", "Nitrate", "Normalized Difference Vegetation Index", "Latitude of event", "Inductively Coupled Plasma Mass Spectrometry ICP MS", "Arctic", "Temperature", " water", "WTW", "Total organic carbon analyzer TOC VCPH TNM 1", "Total organic carbon analyzer (TOC-VCPH/TNM-1)", " Shimadzu", "Calculated", "dissolved ratio", "Nitrate/Nitrogen", " inorganic", " dissolved ratio", "total dissolved ratio", "Multiple investigations", "Temperature", "Nitrogen", " total dissolved", "Month", "dissolved", "specific", "streams", "6. Clean water", "Nitrogen", " inorganic", " dissolved", "Chemistry", "Inductively Coupled Plasma - Mass Spectrometry (ICP-MS)", " PerkinElmer Instruments", " Optima 2000 DV", "Sum cations", "Natural Sciences", "Ammonium", "Potassium Silicon ratio", "Calcium Magnesium ratio", "Conductivity Meter", " WTW", " ProfiLine Cond 3110", "Longitude of event", "Silicon", "Lachat QuickChem 8500 flow injection autoanalyser", "Nitrogen", "organic", "water chemistry", "Iron", "Calcium/Magnesium ratio", "water", "Site", "Nitrate/Ammonium ratio", "Aspect", "Normalized Differenced Vegetation Index", " median", "Ammonium Nitrogen", "Normalized Differenced Vegetation Index", "Catchment area", "Slope", "PerkinElmer Instruments", "ProfiLine Cond 3110", "Shimadzu", "Date/Time of event", "Conductivity Meter", "Nitrate Ammonium ratio", "total dissolved", "Conductivity", "Event label", "Date Time of event", "Nitrogen", " inorganic", " dissolved/Nitrogen", " organic", " dissolved ratio", "15. Life on land", "Carbon", " organic", " dissolved", "dissolved Nitrogen", "Elevation of event", "Carbon", "rivers", "Snow coverage", "Greening", "Potassium/Silicon ratio", "Optima 2000 DV", "Nitrogen", " organic", " dissolved", "13. Climate action", "Discharge", "Conductivity", " specific", "Ammonium/Nitrogen", " inorganic", " dissolved ratio"], "contacts": [{"organization": "Riis, Tenna, Tank, Jennifer, Holmboe, Cecilie Marie Hartvig, Gim\u00e9nez-Grau, Pau, Mastepanov, Mikhail, Catalan, Nuria, Stott, David, Hansen, Birgitte, Kristiansen, S\u00f8ren M, Pastor, Ada,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1594/pangaea.963212"}, {"rel": "self", "type": "application/geo+json", "title": "10.1594/pangaea.963212", "name": "item", "description": "10.1594/pangaea.963212", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1594/pangaea.963212"}, {"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": "10.17221/445/2015-pse", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:27Z", "type": "Journal Article", "created": "2016-05-26", "description": "Soil nitrogen (N) cycling is an important factor in terrestrial ecosystems, including grasslands. Understanding the effects of grazing on nitrogen cycling in grassland ecosystems is critical for better management and for improving knowledge of the mechanisms underlying grassland degradation and can provide basic information for sustainable development in grassland ecosystems. In this study, in situ incubation in intact soil cores was used to measure seasonal changes in soil nitrogen mineralization and nitrification in the meadow steppe of the Hulunber grasslands of northeastern China. Soil plots were subjected to varying intensities of cattle grazing, and soil characteristics including several aspects of the nitrogen cycle were analysed. The findings demonstrate that soil inorganic N pools and nitrogen mineralization peaked in August and that moderate grazing intensity produced higher seasonal mean net N mineralization (Amin); net nitrogen mineralization rate (Rmin); net ammonification rate (Ramm) and net nitrification rate (Rnit). Seasonal mean net mineralization rate was increased by 6-15% in the lightly and moderately grazed plots (0.34-0.46 AU cow/ha) and by 4-5% in the heavily grazed plots (0.69-0.92 AU cow/ha). Also it was found that soil moisture was significantly positively correlated with inorganic N, Amin, Ramm and Rmin and significantly negatively correlated with Rnit, while soil temperature exhibited the opposite effect. The obtained results demonstrated net nitrogen mineralization and ammonium rates, which were strongly linked to grazing intensity, soil temperature and soil moisture.", "keywords": ["Plant culture", "nutrient cycling", "inorganic nitrogen", "04 agricultural and veterinary sciences", "nitrogen", "SB1-1110", "grazing intensity", "climate change", "nutrient cycling in ecosystems", "environmental factors", "terrestrial ecosystem", "0401 agriculture", " forestry", " and fisheries", "ecosystems", "climate"]}, "links": [{"href": "http://www.agriculturejournals.cz/publicFiles/184724.pdf"}, {"href": "https://doi.org/10.17221/445/2015-pse"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Plant%2C%20Soil%20and%20Environment", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.17221/445/2015-pse", "name": "item", "description": "10.17221/445/2015-pse", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.17221/445/2015-pse"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-05-31T00:00:00Z"}}, {"id": "10.2136/sssaj2005.0413", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:19:53Z", "type": "Journal Article", "created": "2010-07-27", "description": "

Growing interest in the potential for agricultural soils to provide a sink for atmospheric C has prompted studies of effects of management on soil organic carbon (SOC) sequestration. We analyzed the impact on SOC of four N fertilization rates (0\uffe2\uff80\uff93270 kg N ha\uffe2\uff88\uff921) and four cropping systems: continuous corn (CC) (Zea mays L.); corn\uffe2\uff80\uff93soybean [Glycine max (L.) Merr.] (CS); corn\uffe2\uff80\uff93corn\uffe2\uff80\uff93oat\uffe2\uff80\uff93alfalfa (oat, Avena sativa L.; alfalfa, Medicago sativa L.) (CCOA), and corn\uffe2\uff80\uff93oat\uffe2\uff80\uff93alfalfa\uffe2\uff80\uff93alfalfa (COAA). Soils were sampled in 2002, Years 23 and 48 of the experiments located in northeast and north\uffe2\uff80\uff90central Iowa, respectively. The experiments were conducted using a replicated split\uffe2\uff80\uff90plot design under conventional tillage. A native prairie was sampled to provide a reference (for one site only). Cropping systems that contained alfalfa had the highest SOC stocks, whereas the CS system generally had the lowest SOC stocks. Concentrations of SOC increased significantly between 1990 and 2002 in only two of the nine systems for which historical data were available, the fertilized CC and COAA systems at one site. Soil quality indices such as particulate organic carbon (POC) were influenced by cropping system, with CS < CC < CCOA. In the native prairie, SOC, POC, and resistant C concentrations were 2.8, 2.6, and 3.9 times, respectively, the highest values in cropped soil, indicating that cultivated soils had not recovered to precultivation conditions. Although corn yields increased with N additions, N fertilization increased SOC stocks only in the CC system at one site. Considering the C cost for N fertilizer production, N fertilization generally had a net negative effect on C sequestration.

", "keywords": ["corn\u2013soybean MAP", "2. Zero hunger", "particulate organic carbon SIC", "soil organic carbon SOM", "soil organic matter TN", "corn\u2013corn\u2013oat\u2013alfalfa CE", "corn\u2013oat\u2013alfalfa\u2013alfalfa CS", "Natural Resources Management and Policy", "Carlo-Erba COAA", "Soil Science", "Walkley-Black", "soil inorganic carbon SOC", "04 agricultural and veterinary sciences", "15. Life on land", "CC", "630", "6. Clean water", "\u03c1b", "mean annual precipitation PMC", "total nitrogen WB", "Agronomy and Crop Sciences", "continuous corn CCOA", "0401 agriculture", " forestry", " and fisheries", "potential mineralization of carbon POC"]}, "links": [{"href": "https://doi.org/10.2136/sssaj2005.0413"}, {"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/sssaj2005.0413", "name": "item", "description": "10.2136/sssaj2005.0413", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.2136/sssaj2005.0413"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2005-03-01T00:00:00Z"}}, {"id": "10.3390/coatings9100687", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:23Z", "type": "Journal Article", "created": "2019-10-23", "title": "Scale Formation and Degradation of Diffusion Coatings Deposited on 9% Cr Steel in Molten Solar Salt", "description": "

The employment of ferritic-martensitic steels e.g., P91, as structural materials in concentrated solar power (CSP) plants can significantly increase cost-efficiency. However, their application is strongly restricted by their lower corrosion resistance in molten nitrates, compared to austenitic steels or Ni-based alloys. In this study, Cr-, Al-, and Cr/Al-diffusion coatings were deposited on P91 via pack cementation in order to improve its scaling behavior in molten solar salt (MSS). The corrosion behavior of coated specimens was investigated with respect to uncoated P91 in MSS at 600 \uffc2\uffb0C for up to 1000 h. The exposure in MSS resulted in a thick, highly porous, and multi-layered oxide scale on uncoated P91 consisting of hematite, magnetite, and sodium ferrite. On the other hand, the scale grown on the chromized P91 comprised of a thin Cr-rich inner layer, which shifted breakaway to prolonged exposure durations. The aluminized specimens both formed very thin, highly protective alumina scales with localized protrusions.

", "keywords": ["[CHIM.INOR] Chemical Sciences/Inorganic chemistry", "[CHIM.MATE] Chemical Sciences/Material chemistry", "Cr-diffusion coating", "[CHIM.MATE]Chemical Sciences/Material chemistry", "02 engineering and technology", "[CHIM.INOR]Chemical Sciences/Inorganic chemistry", "[SPI.MAT] Engineering Sciences [physics]/Materials", "7. Clean energy", "pack cementation", "[SPI.MAT]Engineering Sciences [physics]/Materials", "concentrated solar power", "X-ray diffraction", "molten nitrate corrosion", "13. Climate action", "concentrated solar power; grade 91 steel; Cr-diffusion coating; Al-diffusion coating; pack cementation; molten nitrate corrosion; X-ray diffraction; Raman spectroscopy; third element effect", "Raman spectroscopy", "third element effect", "0202 electrical engineering", " electronic engineering", " information engineering", "grade 91 steel", "Al-diffusion coating", "0210 nano-technology"]}, "links": [{"href": "http://www.mdpi.com/2079-6412/9/10/687/pdf"}, {"href": "https://www.mdpi.com/2079-6412/9/10/687/pdf"}, {"href": "https://doi.org/10.3390/coatings9100687"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Coatings", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/coatings9100687", "name": "item", "description": "10.3390/coatings9100687", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/coatings9100687"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-10-22T00:00:00Z"}}, {"id": "10.3390/f6072307", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:25Z", "type": "Journal Article", "created": "2015-07-01", "description": "

Soil carbon (C) in three Ginkgo (Ginkgo biloba L.) agroforestry systems, afforestation (Ginkgo alone; G), and an agricultural cropping system were compared over a five-year period. The agroforestry systems were Ginkgo + Wheat (Triticum aestivum L.) + Peanut (Arachis hypogaea L.; GWP); Ginkgo + Mulberry (Morus alba L.; GM); and Ginkgo + Rapa (Brassica napus L.) + Peanut (GRP). The agricultural system consisted of wheat and peanut (WP). Total soil carbon (TSC), soil organic (SOC) and inorganic carbon (SIC), and the pools of five SOC chemical fractions were measured. TSC and SOC were always lower under WP than the G-based planting systems, and TSC in the latter increased significantly across years in the top 20 cm. Stocks of SIC under WP were significantly greater than the G-based systems, whereas SOC fractions tended to be lower. Most fractions increased across years but not in WP.

", "keywords": ["2. Zero hunger", "Inorganic carbon", "Agroecosystem", "agroecosystem", "organic carbon", "Ginkgo biloba", "04 agricultural and veterinary sciences", "15. Life on land", "Soil carbon", "carbon fraction", "agroforestry", "Ginkgo biloba", "Afforestation", "afforestation", "Carbon fraction", "0401 agriculture", " forestry", " and fisheries", "Agroforestry", "soil carbon", "Organic carbon", "inorganic carbon"]}, "links": [{"href": "http://www.mdpi.com/1999-4907/6/7/2307/pdf"}, {"href": "https://doi.org/10.3390/f6072307"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Forests", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/f6072307", "name": "item", "description": "10.3390/f6072307", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/f6072307"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2015-07-01T00:00:00Z"}}, {"id": "10.3390/ijerph8051491", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:26Z", "type": "Journal Article", "created": "2011-05-11", "description": "

Application of poultry litter (PL) to soil may lead to nitrogen (N) losses through ammonia (NH3) volatilization and to potential contamination of surface runoff with PL-derived phosphorus (P). Amending litter with acidified biochar may minimize these problems by decreasing litter pH and by retaining litter-derived P, respectively. This study evaluated the effect of acidified biochars from pine chips (PC) and peanut hulls (PH) on NH3 losses and inorganic N and P released from surface-applied or incorporated PL. Poultry litter with or without acidified biochars was surface-applied or incorporated into the soil and incubated for 21 d. Volatilized NH3 was determined by trapping it in acid. Inorganic N and P were determined by leaching the soil with 0.01 M of CaCl2 during the study and by extracting it with 1 M KCl after incubation. Acidified biochars reduced NH3 losses by 58 to 63% with surface-applied PL, and by 56 to 60% with incorporated PL. Except for PH biochar, which caused a small increase in leached NH4+-N with incorporated PL, acidified biochars had no effect on leached or KCl-extractable inorganic N and P from surface-applied or incorporated PL. These results suggest that acidified biochars may decrease NH3 losses from PL but may not reduce the potential for P loss in surface runoff from soils receiving PL.

", "keywords": ["2. Zero hunger", "Water Pollution", "04 agricultural and veterinary sciences", "Phosphorus Compounds", "15. Life on land", "Article", "Poultry", "6. Clean water", "Manure", "acidified biochar; poultry litter; inorganic nitrogen; inorganic phosphorus; ammonia volatilization", "Ammonia", "13. Climate action", "Charcoal", "Animals", "0401 agriculture", " forestry", " and fisheries", "Volatilization", "Nitrogen Compounds"], "contacts": [{"organization": "William P. Miller, Sarah A. Doydora, Keshav C. Das, Julia W. Gaskin, Leticia Sonon, Miguel L. Cabrera,", "roles": ["creator"]}]}, "links": [{"href": "http://www.mdpi.com/1660-4601/8/5/1491/pdf"}, {"href": "https://doi.org/10.3390/ijerph8051491"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/International%20Journal%20of%20Environmental%20Research%20and%20Public%20Health", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/ijerph8051491", "name": "item", "description": "10.3390/ijerph8051491", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/ijerph8051491"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-05-11T00:00:00Z"}}, {"id": "10.3390/w11020215", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:38Z", "type": "Journal Article", "created": "2019-01-29", "title": "A Water Quality Appraisal of Some Existing and Potential Riverbank Filtration Sites in India", "description": "

There is a nationwide need among policy and decision makers and drinking water supply engineers in India to obtain an initial assessment of water quality parameters for the selection and subsequent development of new riverbank filtration (RBF) sites. Consequently, a snapshot screening of organic and inorganic water quality parameters, including major ions, inorganic trace elements, dissolved organic carbon (DOC), and 49 mainly polar organic micropollutants (OMPs) was conducted at 21 different locations across India during the monsoon in June\uffe2\uff80\uff93July 2013 and the dry non-monsoon period in May\uffe2\uff80\uff93June 2014. At most existing RBF sites in Uttarakhand, Jammu, Jharkhand, Andhra Pradesh, and Bihar, surface and RBF water quality was generally good with respect to most inorganic parameters and organic parameters when compared to Indian and World Health Organization drinking water standards. Although the surface water quality of the Yamuna River in and downstream of Delhi was poor, removals of DOC and OMPs of 50% and 13%\uffe2\uff80\uff9399%, respectively, were observed by RBF, thereby rendering it a vital pre-treatment step for drinking water production. The data provided a forecast of the water quality for subsequent investigations, expected environmental and human health risks, and the planning of new RBF systems in India.

", "keywords": ["Ganga", "organic micropollutants", "13. Climate action", "inorganic chemicals", "14. Life underwater", "Yamuna", "drinking water treatment", "bank filtration", "Damodar", "6. Clean water", "3. Good health"]}, "links": [{"href": "http://www.mdpi.com/2073-4441/11/2/215/pdf"}, {"href": "https://doi.org/10.3390/w11020215"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Water", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3390/w11020215", "name": "item", "description": "10.3390/w11020215", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3390/w11020215"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-01-28T00:00:00Z"}}, {"id": "10.3929/ethz-b-000663192", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:45Z", "type": "Journal Article", "title": "Vivianite formation and transformation processes in intertidal sediments and the influence of isomorphic substitution", "description": "unspecifiedPhosphor (P) ist ein wesentlicher N\u00e4hrstoff f\u00fcr die Prim\u00e4rproduktion in aqautischen \u00d6kosystemen, aber \u00fcberm\u00e4\u00dfiger P Eintrag kann zur Eutrophierung dieser \u00d6kosysteme f\u00fchren. Wie P in Sedimenten gebunden ist, wirkt sich auf dessen Bioverf\u00fcgbarkeit aus. Unter reduzierenden, sulfid-freien Bedingungen kann das eisenhaltige Phosphatmineral Vivianit eine wesentliche Rolle bei der P-Bindung in K\u00fcstensedimenten spielen und somit die Wasserqualit\u00e4t positiv beeinflussen. Trotz der Bedeutung von Vivianit f\u00fcr die Regulierung der P-Verf\u00fcgbarkeit in K\u00fcstensedimenten sind die in-situ Bildung, Zusammensetzung und Stabilit\u00e4t von Vivianit nur unzureichend untersucht. In dieser Doktorarbeit wurden Feldexperimente mit einer Laborstudie kombiniert, um die Bildungs- und Umwandlungsprozesse von Vivianit in gezeitenbeeinflussten Sedimenten und den Einfluss der isomorphen Substitution auf diese Prozesse aufzudecken. Diese Erkenntnisse bieten wertvolle Einblicke in die Prozesse des P-Kreislaufs in K\u00fcstensedimenten und sind bedeutend f\u00fcr die Entwicklung industrieller Anwendungen, die darauf abzielen, den anthropogenen P-Kreislauf zu schlie\u00dfen. Im ersten Teil der Arbeit wurde eine Methode entwickelt, bei der isotopisch 57Fe-markiertes Ferrihydrit mit dem Sediment vermischt wurde, um die Vivianitbildung in-situ in gezeitenbeeinflussten Sedimenten zu verfolgen. Mit dieser Methode konnte gezeigt werden, dass sich Vivianit innerhalb von sieben Wochen in gezeitenbeeinflussten Sedimenten mit g\u00fcnstigen geochemischen Bedingungen bilden kann. Die Adsorption von Phosphat an Ferrihydrit war ein wesentlicher Vorl\u00e4ufer f\u00fcr die Bildung von Vivianit. Die reduktive Aufl\u00f6sung des Ferrihydrits bildete wahrscheinlich lokale Bedingen, welche n\u00f6tig waren, um die Vivianitbildung auszul\u00f6sen. W\u00e4hrend das gebildete Vivianit nur ein kleiner Teil des Eisen (Fe)-Pools war (bis zu 15%), machte es bis zu 72% des P-Pools aus basierend auf st\u00f6chiometrischen Berechnungen. Diese Ergebnisse zeigen, dass Vivianit eine entscheidende Rolle bei der Regulierung der P-Retention in K\u00fcstensedimenten spielen kann. In der Umwelt enth\u00e4lt Vivianit h\u00e4ufig andere zweiwertige Kationen, wie Mangan (Mn) und Magnesium (Mg), die in der Kristallstruktur Fe ersetzen. Im zweiten Experiment wurde untersucht, ob Mn oder Mg bei unterschiedlichen Salzgehalten bevorzugt eingebaut wird und wie die isomorphe Substitution die Kristallstruktur und Morphologie ver\u00e4ndert. Die Synthese von neunzehn Vivianiten mit unterschiedlichen Mn- und/oder Mg-Konzentrationen bei verschiedenen Salzgehalten ergab, dass bei niedriger Ionenst\u00e4rke sowohl Mn als auch Mg Fe in der Kristallstruktur gleichwertig ersetzen k\u00f6nnen, wobei Mn bei h\u00f6herer Ionenst\u00e4rke bevorzugt wurde. Vivianit weist zwei unterschiedliche Fe-Atompositionen auf. Die Substitution von Fe durch Mn und/oder Mg fand vorzugsweise an der Atomposition statt, welche Elektronentransfer ausf\u00fchren kann, wodurch Vivianit gegen Oxidation stabilisiert wird. Somit kann sich die isomorphe Substitution wahrscheinlich direkt auf das Oxidationsverhalten von Vivianit auswirken. Au\u00dferdem f\u00fchrte die isomorphe Substitution zu kleineren, raueren Kristallen mit geringerer Kristallinit\u00e4t. Diese beobachteten Ver\u00e4nderungen k\u00f6nnten sich auf die Reaktivit\u00e4t von Vivianit in der Umwelt auswirken, weshalb die isomorphe Substitution bei der Untersuchung der Reaktivit\u00e4t von Vivianit ber\u00fccksichtigt werden sollte. Umweltver\u00e4nderungen, einschlie\u00dflich des Anstiegs des Meeresspiegels, k\u00f6nnten die Bildung von Sulfid in derzeit nicht sulfidischen Sedimenten, die Vivianit enthalten, verst\u00e4rken und zu thermodynamisch instabilen Bedingungen f\u00fcr Vivianit f\u00fchren. Das letzte Experiment untersuchte die in-situ Stabilit\u00e4t von unsubstituiertem und Mn-Mg-substituiertem Vivianit, gemischt mit Meeressand und mit oder ohne die Zugabe von Kalziumkarbonat. Die Mischungen wurden 56 Tage lang in zwei Gezeitenzonen inkubiert, von denen ein Standort eine niedrige und der andere eine hohe Sulfidkonzentration aufwies. Die Inkubation von unsubstituiertem und Mn-Mg-substituiertem Vivianit bei unterschiedlichen Sulfidkonzentrationen ergab eine teilweise Aufl\u00f6sung von Vivianit, die durch die isomorphe Substitution deutlich verst\u00e4rkt wurde. Der gr\u00f6\u00dfte Teil der verbleibenden Mineralphase wurde weiterhin als Vivianit charakterisiert, was darauf hindeutet, dass ein Teil des Vivianits \u00fcber die Versuchsdauer erhalten blieb. Bei niedrigen Sulfidkonzentrationen war Gr\u00fcner Rost das Hauptumwandlungsprodukt, das wahrscheinlich einen Teil des freigesetzten Phosphats adsorbierte. Bei hohem Sulfidgehalt dominierte die Bildung von Fe-Sulfidmineralen, welche aufgrund der geringen Sorptionskapazit\u00e4t f\u00fcr Phosphat zu einem erh\u00f6hten P-Verlust f\u00fchrte. Ein erh\u00f6htes Sorptionspotenzial f\u00fcr Phosphat durch die Zugabe von Kalziumkarbonat k\u00f6nnte den Phosphatverlust geringf\u00fcgig verringern. Diese Ergebnisse zeigen, dass vivianithaltige Sedimente als Quelle f\u00fcr bioverf\u00fcgbares Phosphat dienen k\u00f6nnen, wenn sich die geochemischen Bedingungen \u00e4ndern. Diese Arbeit liefert neue experimentelle Ans\u00e4tze zur Untersuchung und Quantifizierung von Umwandlungs- und Bildungsprozessen von Vivianit. Die Ergebnisse zeigen eine schnelle in-situ Bildungskinetik, w\u00e4hrend die Aufl\u00f6sung von Vivianit unter den untersuchten Bedingungen langsam verl\u00e4uft. Die schnelle in-situ Bildungskinetik deutet darauf hin, dass die Vivianitbildung die P-Retention in Umgebungen mit sowohl schwankenden als auch stabilen geochemischen Bedingungen regulieren kann. Die Ver\u00e4nderungen der Kristallstruktur und -morphologie durch isomorphe Substitution erh\u00f6hten das Ausma\u00df der Aufl\u00f6sung und Umwandlung des Vivianits. Aufgrund der langsamen in-situ Aufl\u00f6sung k\u00f6nnte Vivianit bei kurzfristigen Umweltst\u00f6rungen eine stabile P-Retentionsphase darstellen. Langfristig destabilisierende Bedingungen k\u00f6nnten jedoch zu einer vollst\u00e4ndigen Aufl\u00f6sung f\u00fchren und die P-Retentionskapazit\u00e4t des Sediments schw\u00e4chen. Die Ergebnisse unterstreichen die Bedeutung von Vivianit als P-Retentionsphase in salzarmen K\u00fcstensedimenten, k\u00f6nnten aber auch f\u00fcr das Verst\u00e4ndnis von Bildungs- und Umwandlungsprozessen von Vivianit in anderen Umweltsystemen, wie limnischen Sedimenten und B\u00f6den in Feuchtgebieten, von Bedeutung sein. Dar\u00fcber hinaus haben diese Ergebnisse Auswirkungen auf andere Forschungsbereiche, wie die Gew\u00e4ssersanierung und die industrielle P-R\u00fcckgewinnung.", "keywords": ["iron biogeochemistry", "info:eu-repo/classification/ddc/550", "Phosphorus cycling", "Coastal biogeochemistry", "X-ray absorption spectroscopy", "Laboratory experiments", "VIVIANITE (MINERALOGY)", "Field experiments", "6. Clean water", "M\u00f6ssbauer Spectroscopy", "Earth sciences", "X-Ray Diffraction", "13. Climate action", "IRON PHOSPHATES (INORGANIC CHEMISTRY)", "14. Life underwater", "iron minerals", "mineral transformation", "Redox geochemistry"], "contacts": [{"organization": "Kubeneck, Luisa Jo\u00eblle", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.3929/ethz-b-000663192"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Thesis/Dissertation", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.3929/ethz-b-000663192", "name": "item", "description": "10.3929/ethz-b-000663192", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.3929/ethz-b-000663192"}, {"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": "10.4067/s0718-95162017005000039", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:46Z", "type": "Journal Article", "created": "2017-08-04", "description": "Land use change is one of the most important drivers of excessive carbon dioxide (CO2) emission and is partly responsible for global warming. Certain land use systems promote the sequestering of excessive carbon from the atmosphere to the soil, while other systems accelerate C loss through emissions. Herein, a study was conducted to evaluate the soil C forms and carbon stocks in the soils of three land use systems (a pasture, field crop and cocoa plantation) that were developed following the conversion of grasslands in the humid lowland landscape of Papua New Guinea. A remarkable decline (P<0.001) in the total C concentration of the grassland soils was observed due to land conversion into either field crops (44%) or a cocoa plantation (28%). Among the land use systems, organic C was the dominant pool (78.1-86.9%) compared to inorganic C, which only contributed 13.1%-21.9% to the total C stock. The soil organic C stocks were present in the following order: grassland (217.9 Mg ha-1) > pasture (207.6 Mg ha-1) > cocoa plantation (139.4 Mg ha-1) > field crops (131.6 Mg ha-1). The results of this study indicated that the conversion of grasslands to other land use systems (such as a cocoa plantation and field crops) could lead to the depletion of soil C stocks.", "keywords": ["2. Zero hunger", "13. Climate action", "soil fertility", "Climate change", "0401 agriculture", " forestry", " and fisheries", "organic C", "sequestration", "04 agricultural and veterinary sciences", "inorganic C", "loss-on-ignition method", "15. Life on land", "01 natural sciences", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.4067/s0718-95162017005000039"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20soil%20science%20and%20plant%20nutrition", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.4067/s0718-95162017005000039", "name": "item", "description": "10.4067/s0718-95162017005000039", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.4067/s0718-95162017005000039"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-01-01T00:00:00Z"}}, {"id": "10.5061/dryad.djh9w0w67", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:20:57Z", "type": "Dataset", "created": "2023-11-08", "title": "Data for: Stabilisation of soil organic matter with rock dust partially counteracted by plants", "description": "unspecifiedIn this study, the effect of rock dust addition on both soil inorganic and organic carbon contents was investigated. Soil chemical changes were measured, including soil organic carbon (totals and fractions), soil inorganic carbon, pH, electric conductivity, and water-extractable and ammonium acetate-extractable ion levels (Ca, Mg, Al, Fe, Mn, Fe, Zn, Si). In addition, the effect of plants on soil chemistry and rocks on plant growth (biomass) and plant ion uptake was studied. The results demonstrated rock weathering during the 6 months incubation period and a stabilisation of organic carbon. Plants partially counteracted the stabilisation of soil organic carbon. This was attributed to interactions between soil chemical changes induced by rock dust, plant exudation, and subsequent soil organic carbon stabilisation mechanisms.", "keywords": ["2. Zero hunger", "soil organic carbon", "soil carbon sequestration", "13. Climate action", "Particulate organic matter", "aggregate carbon", "FOS: Earth and related environmental sciences", "15. Life on land", "enhanced rock weathering", "Basalt", "mineral associated organic matter", "6. Clean water", "inorganic carbon"], "contacts": [{"organization": "Buss, Wolfram, Hasemer, Heath, Ferguson, Scott, Borevitz, Justin,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.djh9w0w67"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.djh9w0w67", "name": "item", "description": "10.5061/dryad.djh9w0w67", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.djh9w0w67"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2023-11-27T00:00:00Z"}}, {"id": "10.5061/dryad.ns1rn8png", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:00Z", "type": "Dataset", "title": "Shrub encroachment decreases soil inorganic carbon stocks in Mongolian grasslands", "description": "1. Widespread shrub encroachment in global drylands may increase plant biomass and change soil organic carbon stocks of grassland ecosystems. However, the response of soil inorganic carbon (SIC), which is a major component of dryland carbon pools, to this vegetation shift remains unknown. 2. We conducted a systematic field survey in 75 pairs of shrub-encroached grassland and control plots at 25 sites in the grasslands of the Inner Mongolia Plateau to evaluate how shrub encroachment affects SIC density (SICD) in these ecosystems. 3. We found that shrub encroachment significantly reduced SICD in the upper 100 cm (3.85 vs. 4.74 kg C m-2, P < 0.05), especially in the subsurface soil (20-50 cm layer). The magnitude of SICD changes was related to the change in soil pH, shrub patch size, and initial SICD, reflecting that the reduction in SICD might be attributed to the shrub encroachment-related soil acidification. Our results also revealed that the lost SIC was mainly released into the atmosphere rather than redistributed into deeper soil layers. 4. Synthesis. We provide the first evidence for the soil acidification-induced SIC loss caused by shrub encroachment. Our findings highlight the non-negligible role of SIC dynamics in the C budget of shrub-encroached grassland ecosystems and the need to consider these dynamics in terrestrial C cycle research.", "keywords": ["2. Zero hunger", "carbon budget", "13. Climate action", "Soil inorganic carbon", "Temperate grassland", "carbon source", "soil acidification", "15. Life on land", "shrub encroachment", "Invasion ecology"], "contacts": [{"organization": "Liu, Shangshi, Zhou, Luhong, Li, He, Zhao, Xia, Yang, Yuanhe, Zhu, Yankun, Hu, Huifeng, Chen, Leiyi, Zhang, Pujin, Shen, Haihua, Fang, Jingyun,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.ns1rn8png"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.ns1rn8png", "name": "item", "description": "10.5061/dryad.ns1rn8png", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.ns1rn8png"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-10-03T00:00:00Z"}}, {"id": "10.5061/dryad.v6wwpzgrx", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:21:02Z", "type": "Dataset", "title": "Lower soil carbon stocks in exotic vs. native grasslands are driven by carbonate losses", "description": "Global change includes invasion by exotic (non-native) plant species and altered precipitation patterns, and these factors may affect terrestrial carbon (C) storage. We measured soil C changes in experimental mixtures of all exotic or all native grassland plant species under two levels of summer drought stress (0 and +128 mm). After eight years, soils were sampled in 10 cm increments to 100 cm depth to determine if soil C differed among treatments in deeper soils. Total soil C (organic + inorganic) content was significantly higher under native than exotic plantings, and differences increased with depth. Surprisingly, differences after eight years in C were due to carbonate and not organic C fractions, where carbonate was ~ 250 g C m-2 lower to 1 m soil depth under exotic than native plantings. Our results indicate that soil carbonate is an active pool and can respond to differences in plant species traits over timescales of years. Significant losses of inorganic C might be avoided by conserving native grasslands in sub-humid ecosystems.", "keywords": ["2. Zero hunger", "novel ecosystems", "13. Climate action", "organic carbon", "prairie", "C4 grasses", "15. Life on land", "6. Clean water", "inorganic carbon"], "contacts": [{"organization": "Wilsey, Brian J., Xu, Xia, Polley, H. Wayne, Hofmockel, Kirsten, Hall, Steven J.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.v6wwpzgrx"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.v6wwpzgrx", "name": "item", "description": "10.5061/dryad.v6wwpzgrx", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.v6wwpzgrx"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2021-02-24T00:00:00Z"}}, {"id": "10.5281/zenodo.15396375", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:22:18Z", "type": "Dataset", "title": "Lateral Carbon and Water Chemistry Data from a Small Arctic Coastal Catchment near Churchill, Manitoba, Late Summer 2022", "description": "This dataset accompanies the study 'Lateral carbon flow in an Arctic coastal catchment in late summer.' It includes water chemistry and hydrological data collected in a small coastal catchment near Churchill, Manitoba, Canada (~10 km inland from Hudson Bay). The study focused on surface water and soil pore water sampling between August 12 and September 5, 2022. Parameters measured include pH, dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), particulate organic carbon (POC), SUVA254, spectral slope ratio (SR), stable carbon isotopes (\u03b4\u00b9\u00b3C-DIC, \u03b4\u00b9\u00b3C-DOC), specific conductivity, temperature, dissolved CO\u2082, and CH\u2084. The dataset also includes site coordinates and discharge measurements. The study aimed to assess the influence of a late summer rainfall event on lateral carbon fluxes across different landscape types (headwater peatland and coastal sandy heathland).", "keywords": ["Fresh Water/chemistry", "lateral carbon export", "Arctic catchment", "Precipitation event", "Churchill", "arctic carbon cycling", "arctic hydrology", "Hudson Bay Lowlands", "dissolved inorganic carbon", "dissolved organic carbon"], "contacts": [{"organization": "Martyn Rosco, Melanie, Hensgens, Geert, Weedon, James, Dean, Joshua,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5281/zenodo.15396375"}, {"rel": "self", "type": "application/geo+json", "title": "10.5281/zenodo.15396375", "name": "item", "description": "10.5281/zenodo.15396375", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5281/zenodo.15396375"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2025-12-15T00:00:00Z"}}, {"id": "10.6084/m9.figshare.11925060", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:28Z", "type": "Other", "created": "2020-03-03", "title": "Additional file 6 of Impact of process temperature and organic loading rate on cellulolytic / hydrolytic biofilm microbiomes during biomethanation of ryegrass silage revealed by genome-centered metagenomics and metatranscriptomics", "description": "Additional file 6. Hierarchical clustering of abundance values for 78 selected metagenome-assembled genomes (MAGs) detected in HR biofilms at mesophilic and thermophilic process temperature at organic loading rate (OLR) of 500 g resp. 1500 g ryegrass silage as deduced from transcriptome data.", "keywords": ["Inorganic Chemistry", "Ecology", "FOS: Chemical sciences", "FOS: Biological sciences", "110309 Infectious Diseases", "FOS: Health sciences", "Microbiology", "Molecular Biology", "69999 Biological Sciences not elsewhere classified"], "contacts": [{"organization": "Maus, Irena, Klocke, Michael, Derenk\u00f3, Jaqueline, Stolze, Yvonne, Beckstette, Michael, Jost, Carsten, Wibberg, Daniel, Blom, Jochen, Henke, Christian, Willenb\u00fccher, Katharina, Rumming, Madis, Rademacher, Antje, P\u00fchler, Alfred, Sczyrba, Alexander, Schl\u00fcter, Andreas,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.6084/m9.figshare.11925060"}, {"rel": "self", "type": "application/geo+json", "title": "10.6084/m9.figshare.11925060", "name": "item", "description": "10.6084/m9.figshare.11925060", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.6084/m9.figshare.11925060"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-01T00:00:00Z"}}, {"id": "10.6084/m9.figshare.11925060.v1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:28Z", "type": "Other", "created": "2020-03-03", "title": "Additional file 6 of Impact of process temperature and organic loading rate on cellulolytic / hydrolytic biofilm microbiomes during biomethanation of ryegrass silage revealed by genome-centered metagenomics and metatranscriptomics", "description": "Additional file 6. Hierarchical clustering of abundance values for 78 selected metagenome-assembled genomes (MAGs) detected in HR biofilms at mesophilic and thermophilic process temperature at organic loading rate (OLR) of 500 g resp. 1500 g ryegrass silage as deduced from transcriptome data.", "keywords": ["Inorganic Chemistry", "Ecology", "FOS: Chemical sciences", "FOS: Biological sciences", "110309 Infectious Diseases", "FOS: Health sciences", "Microbiology", "Molecular Biology", "69999 Biological Sciences not elsewhere classified"], "contacts": [{"organization": "Maus, Irena, Klocke, Michael, Derenk\u00f3, Jaqueline, Stolze, Yvonne, Beckstette, Michael, Jost, Carsten, Wibberg, Daniel, Blom, Jochen, Henke, Christian, Willenb\u00fccher, Katharina, Rumming, Madis, Rademacher, Antje, P\u00fchler, Alfred, Sczyrba, Alexander, Schl\u00fcter, Andreas,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.6084/m9.figshare.11925060.v1"}, {"rel": "self", "type": "application/geo+json", "title": "10.6084/m9.figshare.11925060.v1", "name": "item", "description": "10.6084/m9.figshare.11925060.v1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.6084/m9.figshare.11925060.v1"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-01T00:00:00Z"}}, {"id": "10.6084/m9.figshare.24091888.v1", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:30Z", "type": "Dataset", "created": "2023-09-06", "title": "What is the ecotoxicity of a given chemical for a given aquatic species? Predicting interactions between species and chemicals using recommender system techniques", "description": "Ecotoxicological safety assessment of chemicals requires toxicity data on multiple species, despite the general desire of minimizing animal testing. Predictive models, specifically machine learning (ML) methods, are one of the tools capable of solving this apparent contradiction as they allow to generalize toxicity patterns across chemicals and species. However, despite the availability of large public toxicity datasets, the data is highly sparse, complicating model development. The aim of this study is to provide insights into how ML can predict toxicity using a large but sparse dataset. We developed models to predict LC50-values, based on experimental LC50-data covering 2431 organic chemicals and 1506 aquatic species from the ECOTOX-database. Several well-known ML techniques were evaluated and a new ML model was developed, inspired by recommender systems. This new model involves a simple linear model that learns low-rank interactions between species and chemicals using factorization machines. We evaluated the predictive performances of the developed models based on two validation settings: 1) predicting unseen chemical-species pairs, and 2) predicting unseen chemicals. The results of this study show that ML models can accurately predict LC50-values in both validation settings. Moreover, we show that the novel factorization machine approach can match well-tuned, complex, ML approaches.", "keywords": ["Inorganic Chemistry", "Chemical Sciences not elsewhere classified", "Ecology", "FOS: Chemical sciences", "FOS: Biological sciences", "Information Systems not elsewhere classified", "Plant Biology", "Biochemistry", "Microbiology", "Biological Sciences not elsewhere classified", "Mathematical Sciences not elsewhere classified"], "contacts": [{"organization": "Viljanen, M., Minnema, J., Wassenaar, P.N.H., Rorije, E., Peijnenburg, W.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.6084/m9.figshare.24091888.v1"}, {"rel": "self", "type": "application/geo+json", "title": "10.6084/m9.figshare.24091888.v1", "name": "item", "description": "10.6084/m9.figshare.24091888.v1", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.6084/m9.figshare.24091888.v1"}, {"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": "10.6084/m9.figshare.21401999", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:23:30Z", "type": "Journal Article", "created": "2022-10-26", "title": "Exploring structural sediment connectivity via surface runoff in agricultural lands of Finland", "description": "Spatial information on the distribution of erosion areas and sediment transport pathways within agricultural landscapes is limited. Thus, we assess structural sediment connectivity via surface runoff by using a digital elevation model (2 \u00d7 2 m2) and RUSLE-based erosion estimates to compute index of connectivity (IC) and sediment delivery estimates. The variables were analyzed within and between two topographically contrasting subcatchments. We found greater spatial variability of IC within a subcatchment than between the subcatchments. The majority of field parcel areas (65%\u201397%) were structurally connected to adjacent open ditches and streams. Areas with high erosion estimates also tended to be structurally well-connected, both at the pixel (Pearson r = 0.58\u20130.63) and parcel scale (r = 0.49\u20130.67). The IC model was not highly sensitive to parameter variations. In contrast, the magnitude of sediment delivery estimates was highly sensitive to parameter variations. However, based on the high rank correlation (Spearman rs > 0.95) between computed sediment delivery estimates, the tool provided consistent information on potentially high sediment delivery areas. More empirical data and dynamic model applications could be applied to improve the accuracy of the estimates. The method provides a feasible tool to generate open data on connectivity.", "keywords": ["550", "ta1172", "rusle", "SB1-1110", "Inorganic Chemistry", "Sociology", "FOS: Chemical sciences", "FOS: Mathematics", "RUSLE", "ta218", "Connectivity", "Ecology", "connectivity index", "Plant culture", "lowlands", "FOS: Earth and related environmental sciences", "04 agricultural and veterinary sciences", "ta4111", "15. Life on land", "erosion", "59999 Environmental Sciences not elsewhere classified", "FOS: Sociology", "FOS: Biological sciences", "connectivity", "Medicine", "19999 Mathematical Sciences not elsewhere classified", "0401 agriculture", " forestry", " and fisheries", "69999 Biological Sciences not elsewhere classified", "Biotechnology"]}, "links": [{"href": "https://www.tandfonline.com/doi/pdf/10.1080/09064710.2022.2136583"}, {"href": "https://doi.org/10.6084/m9.figshare.21401999"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Acta%20Agriculturae%20Scandinavica%2C%20Section%20B%20%E2%80%94%20Soil%20%26amp%3B%20Plant%20Science", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.6084/m9.figshare.21401999", "name": "item", "description": "10.6084/m9.figshare.21401999", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.6084/m9.figshare.21401999"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2022-10-26T00:00:00Z"}}, {"id": "3178537690", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-24T16:25:16Z", "type": "Journal Article", "created": "2021-06-29", "title": "Significant loss of soil inorganic carbon at the continental scale", "description": "Abstract

Widespread soil acidification due to atmospheric acid deposition and agricultural fertilization may greatly accelerate soil carbonate dissolution and CO2 release. However, to date, few studies have addressed these processes. Here, we use meta-analysis and nationwide-survey datasets to investigate changes in soil inorganic carbon (SIC) stocks in China. We observe an overall decrease in SIC stocks in topsoil (0\uffe2\uff80\uff9330\uffc2\uffa0cm) (11.33\uffc2\uffa0g C m\uffe2\uff80\uff932 yr\uffe2\uff80\uff931) from the 1980s to the 2010s. Total SIC stocks have decreased by \uffe2\uff88\uffbc8.99\uffc2\uffa0\uffc2\uffb1\uffc2\uffa02.24% (1.37\uffc2\uffa0\uffc2\uffb1\uffc2\uffa00.37\uffc2\uffa0Pg C). The average SIC losses across China (0.046 Pg C yr\uffe2\uff80\uff931) and in cropland (0.016 Pg C yr\uffe2\uff80\uff931) account for \uffe2\uff88\uffbc17.6%\uffe2\uff80\uff9324.0% of the terrestrial C sink and 57.1% of the soil organic carbon sink in cropland, respectively. Nitrogen deposition and climate change have profound influences on SIC cycling. We estimate that \uffe2\uff88\uffbc19.12%\uffe2\uff80\uff9319.47% of SIC stocks will be further lost by 2100. The consumption of SIC may offset a large portion of global efforts aimed at ecosystem carbon sequestration, which emphasizes the importance of achieving a better understanding of the indirect coupling mechanisms of nitrogen and carbon cycling and of effective countermeasures to minimize SIC loss.Widespread soil acidification due to atmospheric acid deposition and agricultural fertilization may greatly accelerate soil carbonate dissolution and CO2 release. However, to date, few studies have addressed these processes. Here, we use meta-analysis and nationwide-survey datasets to investigate changes in soil inorganic carbon (SIC) stocks in China. We observe an overall decrease in SIC stocks in topsoil (0\uffe2\uff80\uff9330\uffc2\uffa0cm) (11.33\uffc2\uffa0g C m\uffe2\uff80\uff932 yr\uffe2\uff80\uff931) from the 1980s to the 2010s. Total SIC stocks have decreased by \uffe2\uff88\uffbc8.99\uffc2\uffa0\uffc2\uffb1\uffc2\uffa02.24% (1.37\uffc2\uffa0\uffc2\uffb1\uffc2\uffa00.37\uffc2\uffa0Pg C). The average SIC losses across China (0.046 Pg C yr\uffe2\uff80\uff931) and in cropland (0.016 Pg C yr\uffe2\uff80\uff931) account for \uffe2\uff88\uffbc17.6%\uffe2\uff80\uff9324.0% of the terrestrial C sink and 57.1% of the soil organic carbon sink in cropland, respectively. Nitrogen deposition and climate change have profound influences on SIC cycling. We estimate that \uffe2\uff88\uffbc19.12%\uffe2\uff80\uff9319.47% of SIC stocks will be further lost by 2100. The consumption of SIC may offset a large portion of global efforts aimed at ecosystem carbon sequestration, which emphasizes the importance of achieving a better understanding of the indirect coupling mechanisms of nitrogen and carbon cycling and of effective countermeasures to minimize SIC loss.