{"type": "FeatureCollection", "facets": {"type": {"type": "terms", "property": "type", "buckets": [{"value": "Journal Article", "count": 3}, {"value": "Service", "count": 1}]}, "soil_chemical_properties": {"type": "terms", "property": "soil_chemical_properties", "buckets": [{"value": "iron", "count": 1}, {"value": "potassium", "count": 1}, {"value": "calcium", "count": 1}, {"value": "soil organic carbon", "count": 1}]}, "soil_biological_properties": {"type": "terms", "property": "soil_biological_properties", "buckets": []}, "soil_physical_properties": {"type": "terms", "property": "soil_physical_properties", "buckets": []}, "soil_classification": {"type": "terms", "property": "soil_classification", "buckets": [{"value": "alfisols", "count": 4}]}, "soil_functions": {"type": "terms", "property": "soil_functions", "buckets": [{"value": "soil fertility", "count": 1}]}, "soil_threats": {"type": "terms", "property": "soil_threats", "buckets": [{"value": "soil erosion", "count": 1}, {"value": "tillage erosion", "count": 1}]}, "soil_processes": {"type": "terms", "property": "soil_processes", "buckets": []}, "soil_management": {"type": "terms", "property": "soil_management", "buckets": []}, "ecosystem_services": {"type": "terms", "property": "ecosystem_services", "buckets": []}}, "features": [{"id": "10.1016/j.still.2006.08.005", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-04T16:17:19Z", "type": "Journal Article", "created": "2006-09-19", "title": "No-Till Effects On Organic Matter, Ph, Cation Exchange Capacity And Nutrient Distribution In A Luvisol In The Semi-Arid Subtropics", "description": "No-till (NT) system for grain cropping is increasingly being practised in Australia. While benefits of NT, accompanied by stubble retention, are almost universal for soil erosion control, effects on soil organic matter and other soil properties are inconsistent, especially in a semi-arid, subtropical environment. We examined the effects of tillage, stubble and fertilizer management on the distribution of organic matter and nutrients in the topsoil (0\u201030 cm) of a Luvisol in a semi-arid, subtropical environment in southern Queensland, Australia. Measurements were made at the end of 9 years of NT, reduced till (RT) and conventional till (CT) practices, in combination with stubble retention and fertilizer N (as urea) application strategies for wheat (Triticum aestivum L.) cropping. In the top 30 cm depth, the mean amount of organic C increased slightly after 9 years, although it was similar under all tillage practices, while the amount of total N declined under CTand RT practices, but not under NT. In the 0\u201010 cm depth, the amounts of organicC and total N were significantly greater under NT than under RTor CT. No-till had 1.94 Mg ha 1 (18%) more organicC and 0.20 Mg ha 1 (21%) more total N than CT. In the 0\u201030 cm depth, soil under NT practice had 290 kg N ha 1 more than that under the CT practice, most of it in the top 10 cm depth. Microbial biomass N was similar for all treatments. Under NT, there was a concentration gradient in organic C, total N and microbial biomass N, with concentrations decreasing from 0\u20102.5 to 5\u201010 cm depths. SoilpHwasnotaffectedbytillageorstubbletreatmentsinthe0\u201010 cmdepth,butdecreasedsignificantlyfrom7.5to7.2withN fertilizer application. Exchangeable Mg and Na concentration, cation exchange capacity and exchangeable Na percentage in the 0\u201010 cmdepthweregreaterunderCTthanunderRTandNT,whileexchangeableKandbicarbonate-extractablePconcentrations were greater under NT than under CT. Therefore, NTand RT practices resulted in significant changes in soil organic C and N and exchangeable cations in the topsoil of a Luvisol, when compared with CT. The greater organic matter accumulation close to the soil surface and solute movement in these soils under NT practice would be beneficial to soil chemical and physical status and crop production in the long-term, whereas the concentration of nutrients such as P and K in surface layers may reduce their availability to crops. # 2006 Elsevier B.V. All rights reserved.", "keywords": ["2. Zero hunger", "550", "pH", "1904 Earth-Surface Processes", "Luvisol", "No-till", "04 agricultural and veterinary sciences", "Total nitrogen", "15. Life on land", "01 natural sciences", "630", "6. Clean water", "Cations", "0401 agriculture", " forestry", " and fisheries", "1102 Agronomy and Crop Science", "Organic carbon", "1111 Soil Science", "0105 earth and related environmental sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2006.08.005"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2006.08.005", "name": "item", "description": "10.1016/j.still.2006.08.005", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2006.08.005"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-06-01T00:00:00Z"}}, {"id": "10.1023/a:1009757830508", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-04T16:17:42Z", "type": "Journal Article", "created": "2002-12-22", "description": "A longterm alley cropping trial was undertaken on an eroded Oxic paleustalf in the forest-savanna transition zone of southwestern Nigeria from 1981\u20131993. Two nitrogen fixing hedgerow species (Gliricidia sepium and Leucaena leucocephala) and two non legume hedgerow species (Alchornea cordifolia and Dactyladenia barteri) were used in the trial compared to a control (with no hedgerow) treatment. Plots were sequentially cropped with maize (main season) followed by cowpea (minor season). With 4 m interhedgerow spacing and pruning at 0.75 m height, the mean annual pruning biomass yields were observed in the following order: Leucaena (7.1 t ha-1 ) > Gliricidia (4.9 t ha-1 ) > Alchornea (3.7 t ha-1) > Dactyladenia (3.0 t ha-1 ). Alley cropping with the four woody species greatly enhanced the total plot (woody species + crop) biomass yield/ha as follows; Leucaena (21.8 t ha-1) > Gliricidia (17.7 t ha-1) > Alchornea (11.7 t ha-1) > Dactyladenia (9.5 t ha-1). Total biomass yield of crops in control plot was 5.3 t ha-1. Higher biomass yields with alley cropping also increased nutrient yield and cycling. Gliricidia and Leucaena showed higher nutrient yields than Alchornea and Dactyladenia. Alley cropping with Gliricidia and Leucaena could sustain maize yield at moderate level (>2 t ha-1), which would require a N-rate of 45 kg N ha-1 with sole cropping. Application of N in Gliricidia and Leucaena alley cropping still improved maize yield. Higher nitrogen rates are required for alley cropping with Alchornea and Dactyladenia hedgerows. A low rate of phosphorus application is needed for sustaining crop yields with all treatments. Occasional tillage is recommended to increase maize yield. Alley cropping and tillage showed little effect on cowpea seed yield. Surface soil properties declined with time with continuous cultivation. Alley cropping with woody species maintained higher soil organic carbon, phosphorus and potassium levels. Plots alley cropped with Gliricidia and Leucaena showed lower pH and extractable calcium level. Leucaena alley cropped plot also showed lower magnesium level. The decline in soil pH and extractable cations may be due to increased cation leaching with application of high rates of Gliricidia and Leucaena prunings. Alley cropping with the four woody species showed no effect on population of parasitic nematodes.", "keywords": ["0106 biological sciences", "2. Zero hunger", "biomass", "soil properties", "nematodes", "0401 agriculture", " forestry", " and fisheries", "alfisols", "04 agricultural and veterinary sciences", "15. Life on land", "01 natural sciences", "12. Responsible consumption"], "contacts": [{"organization": "Kang, B.T., Caveness, F.E., Tian, G., Kolawole, G.O.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1023/a:1009757830508"}, {"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/a:1009757830508", "name": "item", "description": "10.1023/a:1009757830508", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1023/a:1009757830508"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "1999-06-01T00:00:00Z"}}, {"id": "10.1111/j.1475-2743.2001.tb00006.x", "type": "Feature", "geometry": null, "properties": {"license": "Open Access", "updated": "2026-04-04T16:19:17Z", "type": "Journal Article", "created": "2010-08-06", "title": "Improvement Of The Physical Fertility Of A Degraded Alfisol With Planted And Natural Fallows Under Humid Tropical Conditions", "description": "<p>Abstract.  Topsoil (0\uffe2\uff80\uff9315 cm) bulk density, aggregate stability, soil dispersibility, water retention and infiltration were measured between 1989 and 1996 on an Alfisol under rehabilitation in southwestern Nigeria. The planted leguminous species were Pueraria phaseoloides, Senna siamea, Leucaena leucocephala, Acacia leptocarpa and A. auriculiformis. Also, plots with natural fallow and maize/cassava intercropping were included. Level (minimum) and mound tillage with hoes was adopted for the cultivated areas under study after 4 and 6 year fallow periods. Under fallow, the soil bulk density decreased from1.56 to 1.11 t m73.The continuously cropped treatment (level tillage) had significantly higher bulk density than the fallowed subplots after 6 years. Mean soil penetrometer resistance ranged from 75 to 157 kPa for fallowed plots and from 192 to 295 kPa for the continuously cropped (level tillage) subplot. Surface soilwater contentswere similar for all the treatments during the soil strength measurements. Although soil aggregates were generally of low stability and not well formed, they were improved by fallowing.</p><p>Soil structural improvement by planted fallows was similar to that by natural fallow, but the trees were more promising for long\uffe2\uff80\uff90term fallow (&gt;6 years) than the herbaceous P. phaseoloides. However, the improvement in soil structure after 4 or 6 year fallow could not be maintained in subsequent cropping. Furthermore, the significant improvement in soil bulk density caused by A. auriculiformis and natural fallow was more rapidly lost on the cultivated subplots compared with other fallow treatments. Thus, soil structure recovery under a fallow does not imply a sustained improvement when stress is applied to this soil. Post\uffe2\uff80\uff90fallow soil management options such as residue incorporation and tillage to ameliorate compaction or soil strength will be necessary to enhance the improvements by fallow species.</p>", "keywords": ["2. Zero hunger", "fallow", "soil fertility", "legumes", "soil physical properties", "pollution", "0401 agriculture", " forestry", " and fisheries", "alfisols", "trees", "humid tropics", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"], "contacts": [{"organization": "Salako, F., Hauser, S., Babalola, O., Tian, G.,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1111/j.1475-2743.2001.tb00006.x"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Use%20and%20Management", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1111/j.1475-2743.2001.tb00006.x", "name": "item", "description": "10.1111/j.1475-2743.2001.tb00006.x", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1111/j.1475-2743.2001.tb00006.x"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2001-03-01T00:00:00Z"}}, {"id": "8d0d98f1-05cd-458f-b4c2-07f234f96c6b", "type": "Feature", "geometry": {"type": "Polygon", "coordinates": [[[12.7, 53.0], [12.7, 54.15], [14.25, 54.15], [14.25, 53.0], [12.7, 53.0]]]}, "properties": {"license": "CC BY", "rights": "Restrictions applied to assure the protection of privacy or intellectual property, and any special restrictions or limitations or warnings on using the resource or metadata. Reports, articles, papers, scientific and non - scientific works of any form, including tables, maps, or any other kind of output, in printed or electronic form, based in whole or in part on the data supplied, must contain an acknowledgement of the form: \"Data reused from the BonaRes Data Centre www.bonares.de. This data were created as part of the Other's research activities.\" Although every care has been taken in preparing and testing the data, the Other and the BonaRes Data Centre cannot guarantee that the data are correct; neither does the Other and the BonaRes Data Centre accept any liability whatsoever for any error, missing data or omission in the data, or for any loss or damage arising from its use. The Other and BonaRes Data Centre will not be responsible for any direct or indirect use which might be made of the data.", "updated": "2021-06-10", "type": "Service", "created": "2021-05-25", "language": "eng", "title": "WMS Service of the dataset 'Terrestrial and Aquatic Kraatz and Rittgarten Kettle Hole Experiments (ID)'", "description": "This WMS Service includes spatial information used by datasets 'WMS Service of the dataset 'Terrestrial and Aquatic Kraatz and Rittgarten Kettle Hole Experiments (ID)''", "keywords": ["infoMapAccessService", "Soil", "tillage erosion", "erosion", "agricultural landscape", "agricultural research", "inland waters", "sediment", "colluvium", "metals", "phosphorus", "total phosphorus", "calcium", "iron", "potassium", "biogeochemistry", "Luvisols", "Regosols", "Phragmites australis"], "contacts": [{"name": "Kai Nils Nitzsche", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Assistant", "roles": ["author"], "phones": [{"value": null}], "emails": [{"value": "kai.nitzsche@jamstec.go.jp"}], "addresses": [{"deliveryPoint": ["Eberswalder Str. 84"], "city": "Muencheberg", "administrativeArea": null, "postalCode": "15374", "country": "Deutschland"}], "links": [{"href": null}]}, {"name": "Katrin Premke", "organization": "Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Chemical Analytic and Biogeochemistry", "position": "Research Assistant", "roles": ["projectLeader"], "phones": [{"value": null}], "emails": [{"value": "katrin.premke@charite.de"}], "addresses": [{"deliveryPoint": ["Mueggelseedamm 310"], "city": "Berlin", "administrativeArea": null, "postalCode": "12587", "country": "Germany"}], "links": [{"href": null}]}, {"name": "BonaRes Data Centre", "organization": "Leibniz Centre for Agricultural Landscape Research (ZALF)", "position": "Research Platform 'Data Analysis & Simulation' - 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