Economic viability of agroforestry systems in “terra firme” and “varzea” ecosystems in the state of amazonia: a case study. / Viabilidade econômica em sistemas agroflorestais nos ecossistemas de terra firme e várzea no estado do Amazonas: um estudo de casos.

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

The objective of this study was the estimation of the economic viability of Agroforestry Systems (SAFs) in two Amazon ecosystems (“terra firme” and “varzeas”) near Manaus/AM. The sample used had 21 observations of farmers adopting SAFs: 13 located in areas of “Terra Firme” in the Manacapuru/AM municipality; and, 8 located on the right margin of “Solimões” River, in “varzea” area. The data was collected using a properly developed questionnaire, to determine the profile of the sample and to do the economic evaluation. Selected agricultural prices, covering a period of 23 years (1980 – 2002) were collected from the Secretaria Municipal de abastecimento Mercados e Feiras (SEMAF) and Secretaria Municipal de Abastecimento e Produção Rural (SEPROR). The patterns of seasonal price variation were estimated using the centralized geometrical moving average method. The economic evaluation of SAFs was estimated using the following indicators: Net Present Value; Internal Rate of Return; Benefit-Cost Ratio; and, Expected Land Value. The results obtained indicate that the SAFs in the sample studied were economic viable on both ecosystems, and they are more profitable in “Terra Firme” than in the “Varzeas”.

ASSUNTO(S)

familiar agriculture agroforestry systems ecossistemas várzeas ecossystems viabilidade econômica economic viability sistemas agroflorestais agricultura familiar várzeas

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