{"type": "FeatureCollection", "features": [{"id": "10.1016/j.jaridenv.2011.02.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:10Z", "type": "Journal Article", "created": "2011-03-07", "title": "Changes In Soil Nutrients, Vegetation Structure And Herbaceous Biomass In Response To Grazing In A Semi-Arid Savanna Of Ethiopia", "description": "The effect of grazing was studied on vegetation structure, herbaceous biomass, basal and bare ground covers, together with soil nutrient concentrations in two locations in an Ethiopian semi-arid savanna. The lightly grazed sites had significantly higher herbaceous diversity, total abundance, basal cover and aboveground biomass, and a lower percentage of bare ground compared with the heavy grazed sites. Grazing pressure had no effect on the density and number of woody species as well as on the proportion of encroaching woody species. The light grazing sites had higher organic carbon, phosphorus and exchangeable bases, and therefore a higher pH and higher electrical conductance, indicating an improved soil nutrient status compared with heavy grazing sites, mainly attributed to the higher basal cover and standing biomass at light grazed sites, and the export of nutrients through grazing and dung collection from the heavily grazed sites. There were significantly higher soil nutrients, species diversity, aboveground biomass and basal cover in the light grazing sites compared with heavy grazing sites. We concluded that changes in herbaceous vegetation, standing biomass and soil compositions are caused by interactions between grazing, soil and vegetation, and these interactions determine the transitions of semi-arid savannas.", "keywords": ["2. Zero hunger", "0106 biological sciences", "long-term", "middle awash valley", "south-africa", "grasslands", "african savanna", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "nitrogen", "rangelands", "redistribution", "0401 agriculture", " forestry", " and fisheries", "mineralization", "phosphorus"]}, "links": [{"href": "https://doi.org/10.1016/j.jaridenv.2011.02.004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Journal%20of%20Arid%20Environments", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.jaridenv.2011.02.004", "name": "item", "description": "10.1016/j.jaridenv.2011.02.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.jaridenv.2011.02.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-07-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2006.01.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:16:01Z", "type": "Journal Article", "created": "2006-03-16", "title": "The Effects Of Erosional And Management History On Soil Organic Carbon Stores In Ephemeral Wetlands Of Hummocky Agricultural Landscapes", "description": "Carbon sequestration by agricultural soils has been widely promoted as a means of mitigating greenhouse gas emissions. In many regions agricultural fields are just one component of a complex landscape matrix and understanding the interactions between agricultural fields and other landscape components such as wetlands is crucial for comprehensive, whole-landscape accounting of soil organic carbon (SOC) change. Our objective was to assess the effects of management and erosional history on SOC storage in wetlands of a typical hummocky agricultural landscape in southern Saskatchewan. Wetlands were classed into three land management groups: native wetlands (i.e., within a native landscape), and uncultivated and cultivated wetlands within an agricultural landscape. Detailed topographic surveys were used to develop a digital elevation model of the sites and landform segmentation algorithms were used to delineate the topographic data into landform elements. SOC density to 45 cm was assessed at seven uncultivated wetlands, seven cultivated wetlands, and twelve native wetlands. Mean SOC density decreased from 175.1 mg ha? 1 to 30 cm (equivalent mass depth) for the native wetlands to 168.6 mg ha? 1 for the uncultivated wetlands and 87.2 mg ha? 1 for the cultivated wetlands in the agricultural field. The SOC density of sediment depositional fans in the uncultivated wetlands is high but the total SOC stored in the fans is low due to their small area. The uncultivated wetlands occupy only 11% of the site but account for approximately 23% of SOC stores. Re-establishing permanent vegetation in the cultivated wetlands could provide maximum C sequestration with minimum energy inputs and a minimum loss of productive acreage but the overall consequences for the gas emissions would have to be carefully assessed.", "keywords": ["2. Zero hunger", "canada", "04 agricultural and veterinary sciences", "15. Life on land", "deposition", "6. Clean water", "redistribution", "storage", "cultivation", "vegetation", "13. Climate action", "landform segmentation procedures", "impact", "0401 agriculture", " forestry", " and fisheries", "saskatchewan", "morainal landscape"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2006.01.004"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Geoderma", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.geoderma.2006.01.004", "name": "item", "description": "10.1016/j.geoderma.2006.01.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2006.01.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2006-11-01T00:00:00Z"}}, {"id": "10.5061/dryad.t3k2t2j", "type": "Feature", "geometry": null, "properties": {"updated": "2026-09-22T16:19:48Z", "type": "Dataset", "created": "2023-08-17", "title": "Data from: Fate of atmospherically deposited NH4+ and NO3- in two temperate forests in China: temporal pattern and redistribution", "description": "The impacts of anthropogenic nitrogen (N) deposition on forest ecosystems  depend in large part on its fate. However, our understanding of the fates  of different forms of deposited N as well as the redistribution over time  within different ecosystems is limited. In this study, we used the  15N-tracer method to investigate both the short-term (1 week to 3 months)  and long-term (1 to 3 years) fates of deposited NH4+ or NO3- by following  the recovery of the 15N in different ecosystem compartments in a larch  plantation forest and a mixed forest located in northeastern China. The  results showed similar total ecosystem retention for deposited NH4+ and  NO3-, but their distribution within the ecosystems (plants vs soil)  differed distinctly particularly in the short-term, with higher 5NO3-  recoveries in plants (while lower recoveries in organic layer) than found  for 15NH4+. The different short-term fate was likely related to the higher  mobility of 15NO3- than 15NH4+ in soils instead of plant uptake  preferences for NO3- over NH4+. In the long-term, differences between N  forms became less prevalent but higher recoveries in trees (particularly  in the larch forest) of\u00a015NO3- than 15NH4+ tracer persisted,  suggesting that incoming NO3- may contribute more to plant biomass  increment and forest carbon sequestration than incoming NH4+. Differences  between the two forests in recoveries were largely driven by a higher 15N  recovery in the organic layer (both N forms) and in trees (for 5NO3-) in  the larch forest compared to the mixed forest. This was due to a more  abundant organic layer and possibly higher tree N demand in the larch  forest than in the mixed forest. Leachate 15N loss was minor (<1%  of the added 15N) for both N forms and in both forests. Total 15N recovery  averaged 78% in the short-term and decreased to 55% in the long-term but  with increasing amount of 15N label (re)-redistributed into slow turn-over  pools (e.g., trees and mineral soil). The different retention dynamics of  deposited NH4+ and NO3- may have implications in environmental policy  related to the anthropogenic emissions of the two N forms.", "keywords": ["15N tracer", "N retention and redistribution", "FOS: Earth and related environmental sciences", "15. 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