Soil organic matter quality in Jatropha spp. plantations in different edaphoclimatic conditions.

Vista sencilla de ítem
dc.contributorRITA DE CÁSSIA ALVES DE FREITAS, DELTACO2 SUSTENTABILIDADE AMBIENTAL
dc.contributorGUSTAVO VICENTINI POPIN, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ
dc.contributorDEBORA MARCONDES BASTOS PEREIRA, CNPDIA
dc.contributorDIANA SIGNOR DEON, CPATSA
dc.contributorMARCOS ANTONIO DRUMOND, CPATSA
dc.contributorCARLOS EDUARDO PELLEGRINO CERRI, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ.
dc.creatorFREITAS, R. de C. A. de
dc.creatorPOPIN, G. V.
dc.creatorMILORI, D. M. B. P.
dc.creatorSIGNOR, D.
dc.creatorDRUMOND, M. A.
dc.creatorCERRI, C. E. P.
dc.date2017-04-11T16:04:12Z
dc.date2017-04-11T16:04:12Z
dc.date2017-04-10
dc.date2017
dc.date2018-03-21T11:11:11Z
dc.date.accessioned2026-07-07T05:47:19Z
dc.descriptionThe substitution of native vegetation by agricultural ecosystems can change the quantity and quality of soil organic matter (SOM), and the intensity of these changes depends on the soil type, climate, and land use. The objective of this study was to evaluate the quality of organic matter in chronosequences of Jatropha cultivation in contrasting soil and climatic conditions. Soil samples were evaluated at depths of 0.00-0.10, 0.20-0.30, and 0.80-1.00 m in chronosequences located in Planaltina, Distrito Federal (Cerrado-Pasture-Jatropha), Dourados, Mato Grosso do Sul (Atlantic Forest-Corn-Jatropha), and Araripina, Pernambuco (Caatinga-Jatropha). To assess SOM quality, we determined C contents in the SOM fractions, C stocks, the carbon management index (CMI), the SOM humification index (HLIF), and the C and N concentrations in the microbial biomass. The conversion of native vegetation to agropastoral systems changed the composition of SOM in the biomes evaluated, especially in the surface layers. The CMI and the C and N contents in the microbial biomass were the most responsive to land use changes in all the biomes studied. The pasture improved SOM quality by increasing the CMI (116) and the C content by 8, 21, and 6 % in the organic, mineral, and organomineral fractions, respectively, while maintaining the SOM humification index and the C and N contents in the microbial biomass in the 0-0.10 m layer. The lowest values of C in the SOM fractions, the CMI (52), and C microbial biomass (136 mg kg-1) were observed for annual crops. Jatropha cultivation increased C contents in the SOM fractions, C stocks, the CMI, and C and N in the microbial biomass with an increase in cultivation time, which demonstrates the potential of this long-term system for improving SOM quality.
dc.identifierRevista Brasileira de Ciência do Solo, v. 41, p. 1-18, 2017.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1068272
dc.identifier10.1590/18069657rbcs20160218
dc.identifier.urihttp://hdl.handle.net/123456789/499924
dc.languageeng
dc.rightsopenAccess
dc.subjectMassa microbiana
dc.subjectMudança de uso da terra
dc.subjectFracionamento de carbono do solo
dc.subjectEspectroscopia de fluorescência
dc.subjectPinhão manso
dc.subjectLaser nduced fluorescence spectroscopy
dc.subjectCarbon management index
dc.subjectSoil carbon fractionation
dc.subjectSolo
dc.subjectCarbono
dc.subjectVegetação nativa
dc.subjectPlanta oleaginosa
dc.subjectMatéria Orgânica
dc.subjectSoil
dc.subjectLand use change
dc.subjectMicrobial biomass
dc.titleSoil organic matter quality in Jatropha spp. plantations in different edaphoclimatic conditions.
dc.typeArtigo de periódico

Archivos

Colecciones

Embrapa Semi-Árido (CPATSA)