{"type": "FeatureCollection", "features": [{"id": "10.1007/s10311-013-0420-8", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:14:56Z", "type": "Journal Article", "created": "2013-05-07", "title": "Soil Microbial Diversity And C Turnover Modified By Tillage And Cropping In Laos Tropical Grassland", "description": "Agricultural practices should modify the diversity of soil microbes. However, the precise relationships between soil properties and microbial diversity are poorly known. Here, we study the effect of agricultural management on soil microbial diversity and C turnover in tropical grassland of north-eastern Laos. Three years after native grassland conversion into agricultural land, we compared soils from five land use management systems: one till versus two no-till rotational cropping systems, one no-till improved pasture and the natural grassland. Soils were incubated in microcosms during 64 days at optimum temperature and humidity. Bacterial and fungal diversity were evaluated by metagenomic 454-pyrosequencing of 16S and 18SrRNA genes, respectively. Changes in soil respiration patterns were evaluated by monitoring 12C- and 13C-CO2 release after soil amendment with 13C-labelled wheat residues. Results show that residue mineralization increased with bacterial richness and diversity in the tilled treatment 7 days after soil amendment. Native soil organic C mineralization and priming effect increased with fungal richness and diversity in improved pasture and natural grassland. No-till cropping systems represented intermediate situations between tillage and pasture systems. Our findings evidence the potential of controlling soil microbial diversity by agricultural practices to improve soil biological properties. We suggest the promotion of no-till systems as a fair compromise between the need for agriculture intensification and soil ecological processes preservation.", "keywords": ["P33 - Chimie et physique du sol", "cycle du carbone", "Microbial diversity", "Conservation agriculture", "F08 - Syst\u00e8mes et modes de culture", "agro\u00e9cologie", "http://aims.fao.org/aos/agrovoc/c_7172", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "630", "Tillage", "biodiversit\u00e9", "labour", "Acid savannah", "http://aims.fao.org/aos/agrovoc/c_12076", "biologie du sol", "http://aims.fao.org/aos/agrovoc/c_33990", "http://aims.fao.org/aos/agrovoc/c_2018", "sol acide", "Priming effect", "savane", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "http://aims.fao.org/aos/agrovoc/c_6154", "pratique culturale", "http://aims.fao.org/aos/agrovoc/c_8511", "F07 - Fa\u00e7ons culturales", "2. Zero hunger", "flore du sol", "http://aims.fao.org/aos/agrovoc/c_33949", "P35 - Fertilit\u00e9 du sol", "prairie", "http://aims.fao.org/aos/agrovoc/c_7160", "P34 - Biologie du sol", "Carbon cycle", "non-travail du sol", "04 agricultural and veterinary sciences", "15. Life on land", "travail du sol", "rotation culturale", "http://aims.fao.org/aos/agrovoc/c_92381", "[SDE.BE] Environmental Sciences/Biodiversity and Ecology", "exp\u00e9rimentation au champ", "http://aims.fao.org/aos/agrovoc/c_6825", "0401 agriculture", " forestry", " and fisheries", "http://aims.fao.org/aos/agrovoc/c_17299", "[SDE.BE]Environmental Sciences/Biodiversity and Ecology", "http://aims.fao.org/aos/agrovoc/c_6021", "http://aims.fao.org/aos/agrovoc/c_89", "http://aims.fao.org/aos/agrovoc/c_7771", "http://aims.fao.org/aos/agrovoc/c_6662"]}, "links": [{"href": "https://doi.org/10.1007/s10311-013-0420-8"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Environmental%20Chemistry%20Letters", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1007/s10311-013-0420-8", "name": "item", "description": "10.1007/s10311-013-0420-8", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1007/s10311-013-0420-8"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-05-08T00:00:00Z"}}, {"id": "10.1016/j.apsoil.2007.12.012", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:15:48Z", "type": "Journal Article", "created": "2008-02-11", "title": "Effects Of Living Mulches Or Residue Amendments On Soil Microbial Properties In Direct Seeded Cropping Systems Of Madagascar", "description": "Abstract   There is growing recognition for the need to study the impact of agricultural land uses on biological and biochemical properties of soils. In Madagascar, cropping systems based on direct seeding with permanent vegetation cover provide a new means for sustainable agriculture to protect the environment and make the most of natural resources. This study assessed the effects of different direct seeding mulch-based cropping systems on soil microbial biomass and activities. The soil was andic Dystrustept. Samples of the soil were taken from 0 to 5\u00a0cm soil layer of three direct seeding mulch-based cropping systems (DMC using crop residues and living mulches). The samples were compared with samples from conventionally tilled plots (CT) and natural fallows (NF). The field experiments were carried out over a 12-year-period and two types of amendment were applied once a year at sowing, farmyard manure (FYM) and farmyard manure combined with an NPK chemical fertilizer. The C and N content, microbial basal respiration and biomass and \u03b2-glucosidase, urease and acid phosphatase activities were determined. The results showed that there was no interaction between soil management strategies and the use of fertilizer. Furthermore, the fertilizer did not affect the soil C and N content or the acid phosphatase and urease activities. Farmyard manure with added NPK had a significantly greater effect than farmyard manure on its own, increasing the microbial biomass, soil respiration and \u03b2-glucosidase activity up to 26%, 52% and 20%, respectively but there was no significant difference between natural fallows and direct seeding mulch-based cropping systems. However, conventional tillage showed a significantly lower soil microbial biomass, C content, microbial respiration and urease activity than natural fallows. The results for direct seeding mulch-based systems varied according to the microbial activities measured. However, soil \u03b2-glucosidase and acid phosphatase activities were significantly higher for the direct seeding mulch-based systems using crop residues than for the direct seeding mulch-based systems using living mulches. Direct seeding mulch-based systems with Desmodium uncinatum living mulch had significantly lower microbial biomass and respiration than the other direct seeding mulch-based systems. There was less evidence of change in the soil between natural fallow and direct seeding mulch-based systems but a higher build-up of some microbial properties was obtained for direct seeding mulch-based systems soil than in conventionally tilled soils and natural fallow.", "keywords": ["crop residues", "Glycine max", "http://aims.fao.org/aos/agrovoc/c_7170", "living mulch", "microbial activity", "Zea mays", "630", "http://aims.fao.org/aos/agrovoc/c_36167", "micro-organisme du sol", "http://aims.fao.org/aos/agrovoc/c_33553", "http://aims.fao.org/aos/agrovoc/c_3301", "http://aims.fao.org/aos/agrovoc/c_4510", "http://aims.fao.org/aos/agrovoc/c_16118", "http://aims.fao.org/aos/agrovoc/c_35657", "F07 - Fa\u00e7ons culturales", "2. Zero hunger", "microbial biomass", "http://aims.fao.org/aos/agrovoc/c_2604", "r\u00e9sidu de r\u00e9colte", "activit\u00e9 enzymatique", "P35 - Fertilit\u00e9 du sol", "04 agricultural and veterinary sciences", "http://aims.fao.org/aos/agrovoc/c_25803", "15. Life on land", "andic Dystrustept", "semis direct", "6. Clean water", "fertilit\u00e9 du sol", "http://aims.fao.org/aos/agrovoc/c_8504", "[SDE]Environmental Sciences", "direct seeding", "respiration du sol", "0401 agriculture", " forestry", " and fisheries", "F04 - Fertilisation", "mati\u00e8re organique du sol"]}, "links": [{"href": "https://doi.org/10.1016/j.apsoil.2007.12.012"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Applied%20Soil%20Ecology", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.apsoil.2007.12.012", "name": "item", "description": "10.1016/j.apsoil.2007.12.012", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.apsoil.2007.12.012"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2008-06-01T00:00:00Z"}}, {"id": "10.1016/j.still.2006.07.009", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:13Z", "type": "Journal Article", "created": "2006-09-08", "title": "Storage And Forms Of Organic Carbon In A No-Tillage Under Cover Crops System On Clayey Oxisol In Dryland Rice Production (Cerrados, Brazil)", "description": "The management and enhancement of soil organic carbon (SOC) is very important for agriculture (fertility) as well as for the environment (carbon (C) sequestration). Consequently, changes in soil management may alter SOC content. No-tillage (NT) practices are potential ways to increase SOC. We studied the SOC from agricultural soils in the Cerrados in Central Brazil. We compared two different tillage systems: conservation agriculture with no-tillage under cover crops (NT) and disc tillage (DT) for 5 years in a context of rainfed rice production. The soil is a dark red oxisol with high clay content (about 40%). The objectives of the study were: (i) to evaluate the short-term (5 years) impact of tillage systems on SOC stocks in an oxisol and (ii) to better understand the dynamics of SOC in different fractions of this soil. We first studied the initial situation in 1998, and compared it to the 2003 situation. NT with cover crop (Crotalaria) was found to increase the storage of C in the topsoil layer (0-10 cm) compared to DT. The difference observed for the 0-10 cm layer under NT in comparison with DT represented C enrichment under no-tillage amounting to 0.35 Mg C ha-1 year-1 and corresponding to less than 10% of cover crops residues returned to the soil. A particle-size fractionation of soil organic matter (SOM) showed that differences in total SOC between NT and DT mainly affected the 0-2 \u00b5m fraction and, to a smaller extent the 2-20 \u00b5m fraction. This specific enrichment of SOC in the silt and clay fraction was attributed to (i) the storage of a water soluble C in the field and (ii) the effect of soil biota and especially fauna activity. The mean residence time of carbon associated with the fine fractions being rather long, it might be assumed that the preferential storage in fine fractions resulted in a long-term carbon storage. This study suggests a positive short-term effect of a no-tillage system on C sequestration in an oxisol. \u00a9 2006 Elsevier B.V. All rights reserved", "keywords": ["P33 - Chimie et physique du sol", "http://aims.fao.org/aos/agrovoc/c_2858", "Oryza sativa", "fractionnement", "[SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study", "SOIL ORGANIC CARBON", "01 natural sciences", "630", "CERRADOS", "PARTICLE-SIZE FRACTIONATION OF SOM", "CARBON SEQUESTRATION", "culture sous couvert v\u00e9g\u00e9tal", "no tillage", "OXISOL", "ferralsol", "http://aims.fao.org/aos/agrovoc/c_1301", "[SDV.SA.SDS] Life Sciences [q-bio]/Agricultural sciences/Soil study", "http://aims.fao.org/aos/agrovoc/c_8511", "http://aims.fao.org/aos/agrovoc/c_35657", "0105 earth and related environmental sciences", "F07 - Fa\u00e7ons culturales", "2. Zero hunger", "Cerrados", "http://aims.fao.org/aos/agrovoc/c_1977", "non-travail du sol", "04 agricultural and veterinary sciences", "15. Life on land", "carbon sequestration", "http://aims.fao.org/aos/agrovoc/c_331583", "particle size fractionation of SOM", "s\u00e9questration du carbone", "http://aims.fao.org/aos/agrovoc/c_3074", "oxisol", "http://aims.fao.org/aos/agrovoc/c_1070", "13. Climate action", "http://aims.fao.org/aos/agrovoc/c_25706", "http://aims.fao.org/aos/agrovoc/c_5438", "0401 agriculture", " forestry", " and fisheries", "NO-TILLAGE", "Crotalaria", "carbone", "Brazil", "RIZ", "mati\u00e8re organique du sol"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2006.07.009"}, {"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.2006.07.009", "name": "item", "description": "10.1016/j.still.2006.07.009", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2006.07.009"}, {"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.fcr.2012.09.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:17Z", "type": "Journal Article", "created": "2012-10-23", "title": "Upland Rice Production Under Conservation Agriculture Cropping Systems In Cold Conditions Of Tropical Highlands", "description": "In response to the extensive development of upland rice on the hillsides of the Malagasy highlands, alternative cropping systems based on conservation agriculture have been recommended to halt loss of soil fertility. To assess the yield performances of these cropping systems, an experiment was set up in 2003 at Andranomanelatra (1640 m asl) in the Malagasy highlands. Grain yield, yield components, biomass accumulation and nitrogen uptake of upland rice were analyzed in the 2004-2005, 2006-2006, and 2006-2007 seasons, and root length density was measured in the 2007-2008 season. The rice crop was planted every second year following two different crops: maize intercropped with soybean (M + S, with both conventional tillage and no tillage) and maize intercropped with Brachiaria ruziziensis (M + B only with no tillage). For each cropping system, two levels of fertilization were used: no fertilizer or application of organic inputs and mineral fertilizer. The season, cropping system, and fertilization treatment had significant effects on rice grain yields. Higher yields were associated with a greater number of plants per m2, which decreased significantly over the three seasons, probably due to the highly variable beginning of the rains, and in the final season, with attacks by soil insects. The rice yield with conventional tillage was the highest and differed significantly from rice yield when maize was intercropped with Brachiaria under the no-till system, but not when the maize was intercropped with soybean with no tillage. In all three seasons, grain yields were closely linked to crop N at harvest. Differences in N uptake between treatments appeared very early in the crop cycle. Under conventional tillage, root length density at 68 days after sowing was higher between 0 and 30 cm depth than with no tillage. In these cold highlands conditions, plant establishment appeared to be more difficult with no tillage and resulted in reduced plant development and plant N uptake, particularly when rice was planted after maize intercropped with Brachiaria.", "keywords": ["[SDE] Environmental Sciences", "0106 biological sciences", "Glycine max", "F08 - Syst\u00e8mes et modes de culture", "rendement des cultures", "F50 - Anatomie et morphologie des plantes", "Zea mays", "01 natural sciences", "630", "fertilisation", "http://aims.fao.org/aos/agrovoc/c_10176", "http://aims.fao.org/aos/agrovoc/c_16034", "http://aims.fao.org/aos/agrovoc/c_8076", "syst\u00e8me de culture", "http://aims.fao.org/aos/agrovoc/c_3301", "http://aims.fao.org/aos/agrovoc/c_4510", "http://aims.fao.org/aos/agrovoc/c_8511", "http://aims.fao.org/aos/agrovoc/c_10795", "F07 - Fa\u00e7ons culturales", "2. Zero hunger", "syst\u00e8me racinaire", "engrais azot\u00e9", "http://aims.fao.org/aos/agrovoc/c_26419", "Oryza", "non-travail du sol", "04 agricultural and veterinary sciences", "15. Life on land", "riz pluvial", "rotation culturale", "6. Clean water", "Brachiaria ruziziensis", "densit\u00e9", "http://aims.fao.org/aos/agrovoc/c_2186", "http://aims.fao.org/aos/agrovoc/c_8504", "http://aims.fao.org/aos/agrovoc/c_5435", "[SDE]Environmental Sciences", "0401 agriculture", " forestry", " and fisheries", "http://aims.fao.org/aos/agrovoc/c_1971", "http://aims.fao.org/aos/agrovoc/c_5195", "http://aims.fao.org/aos/agrovoc/c_6662", "F04 - Fertilisation"]}, "links": [{"href": "https://doi.org/10.1016/j.fcr.2012.09.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Field%20Crops%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.fcr.2012.09.011", "name": "item", "description": "10.1016/j.fcr.2012.09.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.fcr.2012.09.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-10-01T00:00:00Z"}}, {"id": "10.1016/j.fcr.2015.12.015", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:18Z", "type": "Journal Article", "created": "2016-01-06", "title": "Unravelling The Causes Of Variability In Crop Yields And Treatment Responses For Better Tailoring Of Options For Sustainable Intensification In Southern Mali", "description": "Options that contribute to sustainable intensification offer an avenue to improve crop yields and farmers\u2019 livelihoods. However, insufficient knowledge on the performance of various options in the context of smallholder farm systems impedes local adaptation and adoption. Therefore, together with farmers in southern Mali we tested a range of options for sustainable intensification including intensification of cereal (maize and sorghum) and legume (groundnut, soyabean and cowpea) sole crops and cereal-legume intercropping during three years on on-farm trials. There was huge variability among fields in crop yields of unamended control plots: maize yielded from 0.20 to 5.24 t ha\u22121, sorghum from 0 to 3.53 t ha\u22121, groundnut from 0.10 to 1.16 t ha\u22121, soyabean from 0 to 2.48 t ha\u22121 and cowpea from 0 to 1.02 t ha\u22121. This variability was partly explained by (i) soil type and water holding capacity, (ii) previous crop, its management and the nutrient carry-over and (iii) inter-annual weather variability. Farmers recognized three soil types: gravelly soils, sandy soils and black soils. Yields were very poor on gravelly soils and two to three times greater (depending on the crop) on black soils. Yields were also poor at the end of the typical crop rotation, i.e., after sorghum and millet, and 1.3\u20131.7 times greater (depending on the crop) after the fertilized crops maize and cotton. We diagnosed a number of cases of technology failure where no improvement in yield was observed with hybrid varieties of maize and sorghum and rhizobial inoculation of soyabean. Regardless of soil type and previous crop, mineral fertilizer improved yields by 34\u2013126% depending on the crop. Targeting options to a given soil type and/or place in the rotation enhanced their agronomic performance: (i) the biomass production of the cowpea fodder variety was doubled on black soils compared with gravelly soils, (ii) the additive maize/cowpea intercropping option after cotton or maize resulted in an average overall LER of 1.47, no maize grain penalty, and 1.38 t ha\u22121 more cowpea fodder production compared with sole maize. Soil type and position in the rotation, two indicators easy to assess by farmers and extension workers, allowed the identification of specific niches for enhanced agronomic performance of legume sole cropping and/or intercropping.", "keywords": ["F07 - Fa\u00e7ons culturales", "0106 biological sciences", "2. Zero hunger", "Rotation", "Cereals", "04 agricultural and veterinary sciences", "Soil type", "15. Life on land", "Legumes", "01 natural sciences", "630", "12. Responsible consumption", "http://aims.fao.org/aos/agrovoc/c_4540", "Intercropping", "F01 - Culture des plantes", "0401 agriculture", " forestry", " and fisheries", "Crop Yield"]}, "links": [{"href": "https://doi.org/10.1016/j.fcr.2015.12.015"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Field%20Crops%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.fcr.2015.12.015", "name": "item", "description": "10.1016/j.fcr.2015.12.015", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.fcr.2015.12.015"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2016-02-01T00:00:00Z"}}, {"id": "10.1016/j.geoderma.2013.06.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:16:32Z", "type": "Journal Article", "created": "2013-07-16", "title": "Soil Organic Carbon Fraction Losses Upon Continuous Plow-Based Tillage And Its Restoration By Diverse Biomass-C Inputs Under No-Till In Sub-Tropical And Tropical Regions Of Brazil", "description": "Abstract   The conversion of native vegetation (NV) into agricultural land by clearing and tillage disrupts the soil structure, and depletes soil organic carbon (SOC) pool. The data on changes in SOC pools are needed to enhance scientific knowledge regarding the effects of land use and no-till (NT) systems on soil fertility, agronomic productivity, and soil C sink capacity. Thus, the objective of this study was to quantify changes in SOC fractions due to conversion of NV to agricultural land, and to assess the rate of recovery of SOC fractions and the resilience index of NT cropping systems under sub-tropical (Ponta Grossa/PR \u2014 PG) and tropical (Lucas do Rio Verde/MT \u2014 LRV) regions of Brazil. The conversion from CT to NT was 29 and 8\u00a0years at the PG and LRV sites, respectively. Five different fractions of SOC pools were extracted by chemical methods (i.e., C in the polysaccharides \u2014 CTPS, hot-water extractable C \u2014 HWEOC, chemically-stabilized organic C \u2014 CSOC), and physical fractionation (i.e., particulate organic C \u2014 POC, and mineral-associated organic C \u2014 MAOC). Land use change primarily altered the labile (HWEOC, TPS, and POC) and also some of the stable (MAOC) pools at both sites. The CSOC pool was almost constant throughout the soil profile and represented, across land uses, 7.2\u00a0g\u00a0C\u00a0kg \u2212\u00a01  at the PG and 3.1\u00a0g\u00a0C\u00a0kg \u2212\u00a01  at the LRV sites. At the PG site, the HWEOC and CTPS concentrations in the 0\u20135\u00a0cm depth decreased by 56% (1.21\u00a0g\u00a0kg \u2212\u00a01 ) and 45% (7.21\u00a0g\u00a0kg \u2212\u00a01 ) in CT soil, respectively. At the LRV site, concentrations of HWEOC and CTPS in the 0\u20135\u00a0cm depth decreased by 50% (0.4\u00a0g\u00a0kg \u2212\u00a01 ) and 42% (4.8\u00a0g\u00a0kg \u2212\u00a01 ), respectively. In contrast, concentrations of HWEOC and CTPS fractions in soil under NT in the 0\u201320\u00a0cm depth were closer than those under NV, and exhibited a distinct gradient from surface to sub-soil layers. The adoption of CT reduced POC by 46% (4.7\u00a0Mg\u00a0ha \u2212\u00a01 ), and MAOC by 21% (15.1\u00a0Mg\u00a0C\u00a0ha \u2212\u00a01 ) in the 0\u201320\u00a0cm depth at the PG site. Using CT for 23\u00a0years at the LRV site, decreased SOC fractions in the 0\u201320\u00a0cm depth at the rate of 0.25 and 0.34\u00a0Mg\u00a0C\u00a0ha \u2212\u00a01 \u00a0yr \u2212\u00a01  for POC and MAOC, respectively. In contrast, adoption of intensive NT systems in tropical agro-ecoregions increased POC at the rate of 0.23 to 0.36\u00a0Mg\u00a0C\u00a0ha \u2212\u00a01 \u00a0yr \u2212\u00a01 , and MAOC by 0.52 and 0.70\u00a0Mg\u00a0C\u00a0ha \u2212\u00a01 \u00a0yr \u2212\u00a01 . An important effect to be emphasized is the possibility of recovering, at least partially, the SOC fractions by adopting high biomass-C inputs under NT management, and despite the fact that the experimental duration at the LRV site was only eight years. With a high and diversified input of biomass-C in intensive NT systems, higher resilience index was observed for CTPS, HWEOC, and MAOC. The variation in SOC among CT and NT systems was mainly attributed to the MAOC fraction, indicating that a significant proportion of that fraction is relatively labile, and that spatial inaccessibility of SOC plays a significant role in the restoration of SOC.", "keywords": ["P33 - Chimie et physique du sol", "F07 - Fa\u00e7ons culturales", "P36 - \u00c9rosion", " conservation et r\u00e9cup\u00e9ration des sols", "2. Zero hunger", "http://aims.fao.org/aos/agrovoc/c_1070", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water"]}, "links": [{"href": "https://doi.org/10.1016/j.geoderma.2013.06.008"}, {"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.2013.06.008", "name": "item", "description": "10.1016/j.geoderma.2013.06.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.geoderma.2013.06.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-11-01T00:00:00Z"}}, {"id": "10.1016/j.still.2012.09.004", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:18Z", "type": "Journal Article", "created": "2012-10-26", "title": "Aggregate C Depletion By Plowing And Its Restoration By Diverse Biomass-C Inputs Under No-Till In Sub-Tropical And Tropical Regions Of Brazil", "description": "Abstract   Encapsulation of soil organic carbon (SOC) within aggregates is one of the principal mechanisms for long-term C sequestration, macroaggregate formation and stabilization. Our objectives were to quantify the changes in aggregate size distribution, aggregate-C concentrations and stocks upon conversion of native vegetation (NV) to conventional plow-based tillage (CT), and to assess the rate of aggregation and SOC recovery with no-till (NT) under diverse biomass-C inputs. The study was conducted at both sub-tropical (Ponta Grossa \u2013 PG, State of Parana) and tropical (Lucas do Rio Verde \u2013 LRV, State of Mato Grosso) sites in Brazil. The SOC content under NV was used as a baseline to evaluate the depletion rate under CT and the restoration rate under NT. A specific emphasis was given to the largest macroaggregate size class (8\u201319\u00a0mm) because of its importance to protecting the recently deposited labile SOC. A discriminant analysis of principal components (DAPC) indicated that NV soil is modified by conversion to an arable land use and that, mechanical tillage, biomass input, and their interactions drastically influence the distribution of aggregate-size classes, aggregation indices, and SOC distribution within aggregates. At both sites, soil aggregation indices were positively impacted by NT and associated with SOC concentration in the labile fractions (e.g., total polysaccharides (TPS), hot water extractable organic C (HWEOC), particulate organic C (POC)). At the PG site, the 8\u201319\u00a0mm aggregate size fraction was significantly affected by land use and tillage treatments and represented 54%, 43%, and 72%, under NV, CT, and NT in 0\u201320\u00a0cm depth, respectively. Furthermore, the 8\u201319\u00a0mm size fraction stored 55%, 45%, and 71% of the total SOC stock under NV (53.8\u00a0Mg\u00a0C\u00a0ha \u22121 ), CT (28.5\u00a0Mg\u00a0C\u00a0ha \u22121 ) and NT (51.2\u00a0Mg\u00a0C\u00a0ha \u22121 ), respectively. At the LRV site, the 8\u201319\u00a0mm aggregate size fraction decreased from 50% under Cerrado NV to 35% under CT, and ranged from 33% to 51% under diverse biomass-C input under NT in 0\u201320\u00a0cm depth. The 8\u201319\u00a0mm size fraction stored 52%, 37%, and 41% of the total SOC stock across all aggregate sizes under NV (25.4\u00a0Mg\u00a0C\u00a0ha \u22121 ), CT (11.7\u00a0Mg\u00a0C\u00a0ha \u22121 ), and NT (9.9\u201318.1\u00a0Mg\u00a0C\u00a0ha \u22121 ), respectively. The difference in SOC stock among land uses is largely attributed to storage in the 8\u201319\u00a0mm aggregate size class, indicating that NT cropping systems rebuilt the largest macroaggregates, which are crucial for stabilization of SOC.", "keywords": ["P33 - Chimie et physique du sol", "stockage", "01 natural sciences", "labour", "http://aims.fao.org/aos/agrovoc/c_4650", "zone tropicale", "http://aims.fao.org/aos/agrovoc/c_5568", "http://aims.fao.org/aos/agrovoc/c_7427", "biomasse", "sol tropical", "http://aims.fao.org/aos/agrovoc/c_1301", "http://aims.fao.org/aos/agrovoc/c_14658", "http://aims.fao.org/aos/agrovoc/c_8511", "http://aims.fao.org/aos/agrovoc/c_35657", "0105 earth and related environmental sciences", "P36 - \u00c9rosion", " conservation et r\u00e9cup\u00e9ration des sols", "F07 - Fa\u00e7ons culturales", "zone subtropicale", "2. Zero hunger", "non-travail du sol", "04 agricultural and veterinary sciences", "15. Life on land", "http://aims.fao.org/aos/agrovoc/c_331583", "s\u00e9questration du carbone", "http://aims.fao.org/aos/agrovoc/c_926", "http://aims.fao.org/aos/agrovoc/c_7978", "13. Climate action", "unit\u00e9 structurale du sol", "http://aims.fao.org/aos/agrovoc/c_7979", "0401 agriculture", " forestry", " and fisheries", "http://aims.fao.org/aos/agrovoc/c_7195", "carbone", "http://aims.fao.org/aos/agrovoc/c_6021", "mati\u00e8re organique du sol"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2012.09.004"}, {"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.2012.09.004", "name": "item", "description": "10.1016/j.still.2012.09.004", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2012.09.004"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-01-01T00:00:00Z"}}, {"id": "10.1016/j.still.2013.09.010", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-25T16:17:19Z", "type": "Journal Article", "created": "2013-10-26", "title": "Long-Term Tillage Systems Impacts On Soil C Dynamics, Soil Resilience And Agronomic Productivity Of A Brazilian Oxisol", "description": "No-till (NT) cropping systems have been widely promoted in many regions as an important tool to enhance soil quality and improve agronomic productivity. However, knowledge of their long-term effects on soil organic carbon (SOC) stocks and functional SOC fractions linking soil resilience capacity and crop yield is still limited. The aims of this study were to: (i) assess the long-term (16 years) effects of tillage systems (i.e., conventional - CT, minimum - MT, no-till with chisel - NTch, and continuous no-till cropping systems - CNT) on SOC in bulk soil and functional C fractions isolated by chemical (hot water extractable organic C - HWEOC, permanganate oxidizable C - POXC) and physical methods (light organic C - LOC, particulate organic C - POC, mineral-associated organic C - MAOC) of a subtropical Oxisol to 40 cm depth; (ii) evaluate the soil resilience restoration effectiveness of tillage systems, and (iii) assess the relationship between the SOC stock enhancement and crop yield. The crop rotation comprised a 3-year cropping sequence involving two crops per year with soybean (Glycine max, L. Merril) and maize (Zea mays L.) in the summer alternating with winter crops. In 2005, the soil under CNT contained 25.8, 20.9, and 5.3 Mg ha?1 more SOC (P < 0.006) than those under CT, MT, and NTch in 0-40 cm layer, representing recovery rates of 1.61, 1.31, and 0.33 Mg C ha?1 yr?1, respectively. The relative C conversion ratio of 0.398 at CNT was more efficient in converting biomass-C input into sequestered soil C than NTch (0.349), MT (0.136), and CT (0.069). The soil under CNT in 0-10 cm depth contained ?1.9 times more HWEOC and POXC than those under CT (P < 0.05), and concentrations of LOC and POC physical fractions of SOC were significantly higher throughout the year under CNT. Considering CT as the disturbance baseline, the resilience index (RI) increased in the order of MT (0.10) < NTch (0.43) < CNT (0.54). Grain yield was positively affected by increase in SOC stock, and an increase of 1 Mg C ha?1 in 0-20 cm depth resulted in an increase in yield equal to ?11 and 26 kg grain ha?1 of soybean (R2 = 0.97, P = 0.03) and wheat (R2 = 0.96, P = 0.03), respectively. The data presented emphasizes the role of labile fractions in the overall SOC accumulation processes in soils managed under CNT and their positive impacts on the soil resilience restoration and on agronomic productivity. (Resume d'auteur)", "keywords": ["F07 - Fa\u00e7ons culturales", "P33 - Chimie et physique du sol", "2. Zero hunger", "http://aims.fao.org/aos/agrovoc/c_1070", "0401 agriculture", " forestry", " and fisheries", "04 agricultural and veterinary sciences", "15. Life on land"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2013.09.010"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2013.09.010", "name": "item", "description": "10.1016/j.still.2013.09.010", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2013.09.010"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2014-03-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=F07+-+Fa%C3%A7ons+culturales&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=F07+-+Fa%C3%A7ons+culturales&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=F07+-+Fa%C3%A7ons+culturales&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=F07+-+Fa%C3%A7ons+culturales&offset=8", "hreflang": "en-US"}], "numberMatched": 8, "numberReturned": 8, "distributedFeatures": [], "timeStamp": "2026-07-26T13:15:10.234640Z"}