Particulate organic carbon in agrosystems in the brazilian Semiarid.

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dc.contributorMÔNICA DA SILVA SANTANA, Universidade Federal do Ceará; EUNICE MAIA DE ANDRADE, Universidade Federal do Ceará; VANDERLISE GIONGO, CPATSA.
dc.creatorSANTANA, M. da S.
dc.creatorANDRADE, E. M. de
dc.creatorGIONGO, V.
dc.date2018-10-25T01:00:32Z
dc.date2018-10-25T01:00:32Z
dc.date2018-10-24
dc.date2018
dc.date2018-10-25T11:11:11Z
dc.date.accessioned2026-07-07T05:51:43Z
dc.descriptionDrylands cover about 40% of the planet, in which 44% are occupied with cultivated systems. Covering 45% of Brazilian Semiarid the grasslands are main land use this region. In order to increase biomass production and provide food for goats, sheep and bovines are implanted different agrosystems with differences species Cenchurs ciliairis L. (CC), Opuntia ficus indica Mill. (OF), Gliricidia sepium Jacq. (Walp.) (GS), Leucaena leucocephala Lam. De Wit. (LL). However, with removal of native vegetation (NV) there is a change in supply plant material and hence in soil organic matter (SOM), which is formed by substances in different stages of decomposition. Among the chemical components contained in SOM is carbon (C), the main structuring element of nature. In soils, the C can be in the form particulate organic carbon (POC), coming from the biotic residues being quite susceptible to change of land use, and mineral-associated carbon fraction formed by organomineral complexes that are not available to decomposition . POC is associated with the active compartment and can be lost more eas ly, depending on land use. In sense, to evaluate how the introduction of new species for animal feeding can modify the POC, soil samples were collected at following depths: 0-5, 5-10, 10-15, 15-20, 20-30, 30- 40 cm, with four replicates for uses with different ages: NV (always preserved), CC (30 yr), OF (21 yr), GS (17 yr) and LL (24 yr). The air dried soil was separated in a 53 ?m sieve, where the particles larger than >53 ?m corresponded to POC.
dc.identifierIn: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings. Rio de Janeiro: SBCS, 2018.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1098133
dc.identifier.urihttp://hdl.handle.net/123456789/501413
dc.languageeng
dc.rightsopenAccess
dc.subjectAgroecossistema
dc.subjectCarbono orgânico do solo
dc.subjectAgricultura de terras áridas
dc.subjectSemiárido
dc.subjectDióxido de Carbono
dc.subjectSolo
dc.subjectUso da Terra
dc.subjectMatéria Orgânica
dc.subjectSoil organic carbon
dc.subjectDryland farming
dc.subjectSoil organic matter
dc.titleParticulate organic carbon in agrosystems in the brazilian Semiarid.
dc.typeResumo em anais e proceedings

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Embrapa Semi-Árido (CPATSA)