{"type": "FeatureCollection", "features": [{"id": "10.1007/s003740050443", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:14:20Z", "type": "Journal Article", "created": "2002-08-25", "title": "Land Use Effects On Labile N Extracted With Permanganate And The Nitrogen Management Index In The Cerrado Region Of Brazil", "description": "The effect of land use on the availability of nitrogen (N) was studied by separating total N into a labile and a stable fraction by oxidation and extraction of labile N with KMnO4. The nitrogen management index (NMI) was calculated following the method of Blair et al. (1995) for the carbon management index. In all systems, labile N released by KMnO4 was a better indicator of N availability than total and stable N. The NMI was a good indicator of N availability but gave no information about the total amount of N. In land use system analysis, total N and labile N can be used together as a simple and rapid way to evaluate the N status of the soil. Legume-based pastures specifically increased the amount of labile N. Although soybeans had a dominant role in the continuous cropping systems studied, the total N contents of these systems were lower than those of the natural Cerrado. The availability of N under legume-based pastures and legume-based pasture-crop rotations was higher than under the natural Cerrado and the continuous cropping systems.", "keywords": ["2. Zero hunger", "utilizaci\u00f3n de la tierra", "mineralizaci\u00f3n", "nitrogen management index", "land use", "nitrogen availability", "disponibilidad de nutrientes", "04 agricultural and veterinary sciences", "15. Life on land", "feed crops", "01 natural sciences", "oxisols", "nitr\u00f3geno", "ferralsoles", "0401 agriculture", " forestry", " and fisheries", "mineralization", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Westerhof, R, Vilela, L, Ayarza, Miguel Angel, Zech, W.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1007/s003740050443"}, {"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/s003740050443", "name": "item", "description": "10.1007/s003740050443", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s003740050443"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1998-09-18T00:00:00Z"}}, {"id": "10.1016/j.ecolind.2012.11.020", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:15:46Z", "type": "Journal Article", "created": "2012-12-28", "title": "Soil Macrofauna As Indicators Of Soil Quality And Land Use Impacts In Smallholder Agroecosystems Of Western Nicaragua", "description": "Abstract   The tropical dry forest region along the western slope of Central America represents a biodiverse and fragile area that is under increasing pressure from agricultural production, thus threatening the provision of ecosystem services, the integrity of these landscapes, and the rural communities who depend on them. To address this issue, we evaluated the influence of common agricultural management practices (cropping and livestock systems) vs. the Quesungual slash-and-mulch agroforestry system (QSMAS) on diverse parameters of soil quality and function. We then used this information to identify soil invertebrate bioindicators that represent key aspects of soil quality (chemical fertility, physical properties, aggregate morphology, and biological functioning). In February of 2011 soil sampling was conducted on six hillside farms near the town of Somotillo in western Nicaragua to assess soil properties and the abundance and diversity of soil macrofauna within four management systems: (1) QSMAS, based on maize production, (2) traditional maize cropping system with few trees (TC), (3) silvopastoral system with low tree density (SP), and (4) secondary forest (SF), used as a reference. The conversion of forest to agriculture demonstrated the greatest impact of management in this study. For example, SF presented significantly higher diversity of soil invertebrate taxonomic groups than either TC or SP ( P  P", "keywords": ["2. Zero hunger", "570", "utilizaci\u00f3n de la tierra", "Forest conversion", "Soil invertebrates", "soil fertility", "land use", "04 agricultural and veterinary sciences", "fertilidad del suelo", "15. Life on land", "shifting cultivation", "Quesungual slash-and-mulch agroforestry system", "Indicator Value Index", "630", "cultivo migratorio", "agroforestry", "Soil ecosystem services", "Bioindicators", "0401 agriculture", " forestry", " and fisheries", "fauna del suelo", "agroforesteria", "soil fauna"]}, "links": [{"href": "https://doi.org/10.1016/j.ecolind.2012.11.020"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Ecological%20Indicators", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.ecolind.2012.11.020", "name": "item", "description": "10.1016/j.ecolind.2012.11.020", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.ecolind.2012.11.020"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-04-01T00:00:00Z"}}, {"id": "10.1080/10549811.2016.1175950", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-25T16:18:10Z", "type": "Journal Article", "created": "2016-04-14", "title": "Dynamics Of Soil Carbon Stock, Total Nitrogen, And Associated Soil Properties Since The Conversion Ofacaciawoodland To Managed Pastureland, Parkland Agroforestry, And Treeless Cropland In The Jido Komolcha District, Southern Ethiopia", "description": "ABSTRACTIn the arid, low biomass producing areas of Ethiopia, Acacia woodlands suffered a severe degradation due to exploitation for various uses, and conversion to grazing and cultivated lands. However, little is known on the impact of agricultural land uses on soil organic carbon (SOC), total nitrogen (TN) stocks, and other soil quality indicators. This study was planned to evaluate SOC and TN stock changes under parkland agroforestry (PAF), managed pastureland (MPL), and treeless cropland (TLCL) regimes by considering the remnant protected woodland (PWL) as a reference. We found that SOC and TN stocks were significantly higher in PWL and MPL areas. Conversion of Acacia woodlands to MPL, PAF, and TLCL resulted in the loss of SOC stock by 23, 50, and 56%, respectively. Higher SOC and TN stocks were found under PWL (144.3 Mg\u00a0ha\u22121) and MPL (108.2 Mg\u00a0ha\u22121). Significant changes in available phosphorous (P), exchangeable cations, and cation exchangeable capacity were observed following the woodland conversion...", "keywords": ["2. Zero hunger", "crop residues", "utilizaci\u00f3n de la tierra", "residuos de cosechas", "suelo", "land use", "trees", "04 agricultural and veterinary sciences", "15. 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