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Stocks of carbon and nitrogen in Cerrado soils aimed at agricultural sustainability

Grant number: 04/15538-7
Support type:Regular Research Grants
Duration: October 01, 2005 - February 29, 2008
Field of knowledge:Biological Sciences - Ecology
Principal Investigator:Marisa de Cassia Piccolo
Grantee:Marisa de Cassia Piccolo
Home Institution: Centro de Energia Nuclear na Agricultura (CENA). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

The Cerrado represents one of the most promising agricultural frontiers in the world, although the conversion of natural areas into productive systems has provoked an intense debate in relation to the changes that have occurred in the dynamic of the soil organic matter (SOM) and alterations in the fluxes of trace gases responsible for the greenhouse effect (CO2, N2O and CH4). The clearing and burning of the natural vegetation, followed by cultivation of the soil lead to a decrease in the stock of soil organic matter (SOM) and an increase in the emission of greenhouse effect gases. Conservationist practices, such as the no-tillage system, are efficient strategies for mitigating these effects. The general objective of the research is to evaluate the alterations in the stocks of C and N in the soil and the emissions of significant gases for the greenhouse effect (CO2, N2O and CH4) in the process of the conversion of the Cerrado in Rio Verde (GO) to systems of conventional and no-tillage cultivation. The areas for study selected are: native vegetation (1CN, 2CN and 3CN); conventional planting system established 15 years ago (PC); and no-tillage system: chronosequence with 12 years of planting (PD0, PD1, PD4, PD5, PD7, PD8, PD10 and PD12). Other variables such as the granulometry of the soil, microbial C and N, mineralization of hydrosoluble N and C in the soil (DOC) will be studied in order to understand the dynamic of C and N in the systems. Mathematical simulations of the SOM will be undertaken with the aid of the Century mathematical model. (AU)

Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
COSTA JUNIOR, C.; CORBEELS, M.; BERNOUX, M.; PICCOLO, M. C.; SIQUEIRA NETO, M.; FEIGL, B. J.; CERRI, C. E. P.; CERRI, C. C.; SCOPEL, E.; LAL, R. Assessing soil carbon storage rates under no-tillage: Comparing the synchronic and diachronic approaches. SOIL & TILLAGE RESEARCH, v. 134, p. 207-212, NOV 2013. Web of Science Citations: 22.
CINIRO COSTA JUNIOR; MARISA DE CÁSSIA PÍCCOLO; MARCOS SIQUEIRA NETO; PLÍNIO BARBOSA DE CAMARGO; CARLOS CLEMENTE CERRI; MARTIAL BERNOUX. Carbono em agregados do solo sob vegetação nativa, pastagem e sistemas agrícolas no bioma Cerrado. Revista Brasileira de Ciência do Solo, v. 36, n. 4, p. 1311-1322, Ago. 2012.
MARCOS SIQUEIRA NETO; MARISA DE CÁSSIA PICCOLO; CINIRO COSTA JUNIOR; CARLOS CLEMENTE CERRI; MARTIAL BERNOUX. Emissão de gases do efeito estufa em diferentes usos da terra no bioma Cerrado. Revista Brasileira de Ciência do Solo, v. 35, n. 1, p. 63-76, Fev. 2011.
NETO, MARCOS SIQUEIRA; SCOPEL, ERIC; CORBEELS, MARC; CARDOSO, ALEXANDRE NUNES; DOUZET, JEAN-MARIE; FELLER, CHRISTIAN; PICCOLO, MARISA DE CASSIA; CERRI, CARLOS C.; BERNOUX, MARTIAL. Soil carbon stocks under no-tillage mulch-based cropping systems in the Brazilian Cerrado: An on-farm synchronic assessment. SOIL & TILLAGE RESEARCH, v. 110, n. 1, p. 187-195, SEP 2010. Web of Science Citations: 61.
MARCOS SIQUEIRA NETO; MARISA DE CÁSSIA PICCOLO; ERIC SCOPEL; CINIRO DA COSTA JUNIOR; CARLOS CLEMENTE CERRI; MARTIAL BERNOUX. Carbono total e atributos químicos com diferentes usos do solo no Cerrado. Acta Scientiarum. Agronomy, v. 31, n. 4, p. -, Dez. 2009.

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