Use este identificador para citar ou linkar para este item: http://repositorio.inpa.gov.br/handle/123/4654
Título: Agroforestry and the improvement of soil fertility: a view from Amazonia
Autor(es): Rachel Camargo de Pinho
Robert Pichard Miller
Sonia Sena Alfaia
Assunto: agroforestry
Soil nutrients
Amazônia
ISSN: 1687-7667
Revista: Applied and Environmental Soil Science
Volume: 12
Resumo: This paper discusses the effects of trees on soil fertility, with a focus on agricultural systems in Amazonia. Relevant literature concerning the effects of trees on soil physical and chemical properties in tropical, subtropical, and temperate regions is reviewed, covering both natural ecosystems and agroecosystems. Soil carbon, in the form of organic matter, is considered as an indicator of biological activity as well as in relation to policy issues such as carbon sequestration and climate change. In the case of tropical soils and Amazonia, information on the effects of trees on soils is discussed in the context of traditional agriculture systems, as well as in regard to the development of more sustainable agricultural alternatives for the region. Lastly, attention is given to a case study in the savanna region of Roraima, northern Brazil, where a chronosequence of indigenous homegarden agroforestry systems showed clear effects of management practices involving trees on soil fertility. The use of diverse tree species and other practices employed in agroforestry systems can represent alternative forms of increasing soil fertility and maintaining agricultural production, with important practical applications for the sustainability of tropical agriculture.
URI: http://repositorio.inpa.gov.br/handle/123/4654
ISSN: 1687-7667
DOI: http://dx.doi.org/10.1155/2012/616383
Aparece nas coleções:Coordenação de Tecnologia e Inovação (COTI)

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