Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Sugarcane expansion in Brazilian tropical soils-Effects of land use change on soil chemical attributes

Texto completo
Autor(es):
Cherubin, Mauricio Roberto [1] ; Custodio Franco, Andre Luiz [1] ; Pellegrino Cerri, Carlos Eduardo [1] ; da Silva Oliveira, Dener Marcio [1] ; Davies, Christian Andrew [2] ; Cerri, Carlos Clemente [3]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Dept Soil Sci, Luiz de Queiroz Coll Agr, BR-13418900 Piracicaba, SP - Brazil
[2] Shell Technol Ctr Houston, Houston, TX 77082 - USA
[3] Univ Sao Paulo, Ctr Nucl Energy Agr, BR-13400970 Piracicaba, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: AGRICULTURE ECOSYSTEMS & ENVIRONMENT; v. 211, p. 173-184, DEC 15 2015.
Citações Web of Science: 23
Resumo

Land use change (LUC) in Brazil for sugarcane ethanol production has raised concerns about its potential environmental impacts. Soil quality is a key indicator to infer about the environmental sustainability of Brazilian ethanol production. Our objective was to quantify the effects of the most common LUC sequence associated with sugarcane expansion (i.e., native vegetation to pasture to sugarcane) on chemical attributes in tropical soils. Soil sampling was carried out in three study sites located in central-southern Brazil, primary sugarcane region of production and expansion of the world. Overall, long-term conversions from natural ecosystems to extensive pasturelands decreases available P, S, Ca, Mg and B contents. In addition, the LUC leads to soil acidification and decreases of CECpH7, indicating that pasturelands have poor soil chemical quality. The LUC from pasture to sugarcane increases soil nutrient levels and reduces the soil acidity due to inputs of lime and fertilizers. Despite that, increments of available P and base saturation are necessary to achieve ideal soil chemical conditions to sugarcane growth. Overall, our findings suggest that sugarcane expansion in Brazil replacing pasturelands will promotes improvements on soil chemical quality. Nevertheless, sugarcane expansion can be associated with management strategies to increase soil organic matter and improve the soil fertility, reducing the environmental and economic costs associated with ethanol production in Brazil. (C) 2015 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 13/17581-6 - QUALIDADE DO SOLO EM ÁREAS DE MUDANÇA DE USO DA TERRA PARA CULTIVO DA CANA-DE-AÇÚCAR NO CENTRO-SUL DO BRASIL - bases para avaliação da sustentabilidade ambiental do etanol
Beneficiário:Maurício Roberto Cherubin
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 12/22510-8 - Macroinvertebrados e os processos de engenharia do solo: controles sobre a estocagem de matéria orgânica do solo em áreas com mudanças no uso da terra
Beneficiário:Andre Luiz Custodio Franco
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 14/16612-8 - Resposta de indicadores de qualidade do solo a mudança de uso da terra
Beneficiário:Maurício Roberto Cherubin
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Doutorado