Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1068272
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dc.contributor.authorFREITAS, R. de C. A. dept_BR
dc.contributor.authorPOPIN, G. V.pt_BR
dc.contributor.authorMILORI, D. M. B. P.pt_BR
dc.contributor.authorSIGNOR, D.pt_BR
dc.contributor.authorDRUMOND, M. A.pt_BR
dc.contributor.authorCERRI, C. E. P.pt_BR
dc.date.accessioned2017-04-11T16:04:12Z-
dc.date.available2017-04-11T16:04:12Z-
dc.date.created2017-04-10pt_BR
dc.date.issued2017pt_BR
dc.identifier.citationRevista Brasileira de Ciência do Solo, v. 41, p. 1-18, 2017.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1068272pt_BR
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.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectMassa microbianapt_BR
dc.subjectMudança de uso da terrapt_BR
dc.subjectFracionamento de carbono do solopt_BR
dc.subjectEspectroscopia de fluorescênciapt_BR
dc.subjectPinhão mansopt_BR
dc.subjectCarbon management indexpt_BR
dc.subjectLaser nduced fluorescence spectroscopypt_BR
dc.subjectSoil carbon fractionationpt_BR
dc.titleSoil organic matter quality in Jatropha spp. plantations in different edaphoclimatic conditions.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2018-03-21T11:11:11Zpt_BR
dc.subject.thesagroSolopt_BR
dc.subject.thesagroCarbonopt_BR
dc.subject.thesagroVegetação nativapt_BR
dc.subject.thesagroPlanta oleaginosapt_BR
dc.subject.thesagroMatéria Orgânicapt_BR
dc.subject.nalthesaurusSoilpt_BR
dc.subject.nalthesaurusLand use changept_BR
dc.subject.nalthesaurusMicrobial biomasspt_BR
riaa.ainfo.id1068272pt_BR
riaa.ainfo.lastupdate2018-03-21 -03:00:00pt_BR
dc.identifier.doi10.1590/18069657rbcs20160218pt_BR
dc.contributor.institutionRITA DE CÁSSIA ALVES DE FREITAS, DELTACO2 SUSTENTABILIDADE AMBIENTALpt_BR
dc.contributor.institutionGUSTAVO VICENTINI POPIN, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZeng
dc.contributor.institutionDEBORA MARCONDES BASTOS PEREIRA, CNPDIAeng
dc.contributor.institutionDIANA SIGNOR DEON, CPATSAeng
dc.contributor.institutionMARCOS ANTONIO DRUMOND, CPATSAeng
dc.contributor.institutionCARLOS EDUARDO PELLEGRINO CERRI, ESCOLA SUPERIOR DE AGRICULTURA LUIZ DE QUEIROZ.eng
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