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标题：Uso Atual e Quantificação de Áreas Degradadas na Margem Direita do Rio São Francisco no Município de Curaçá-BA (Current Use and Quantification of Degraded Areas at the Right Riverside of São Francisco River at Curaçá Municipality (Bahia, Brazil))
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作者：Tony Jarbas Cunha ; Iêdo Bezerra Sá ; Manoel Batista de Oliveira Neto 等
期刊名称：Revista Brasileira de Geografia Física
印刷版ISSN：1984-2295
电子版ISSN：1984-2295
出版年度：2011
卷号：4
期号：6
页码：1197-1212
出版社：Revista Brasileira de Geografia Física
摘要：Over the years the landscape of the of the lower half of São Francisco Valley has undergone constant change due to anthropogenic activities where the original hyperxerophilous Caatinga vegetation has been gradually eliminated by the extractivist process and partially given over to space for agricultural use. In this way several areas without suitability or of limited suitability for agricultural use have been cultivated, increasing the risk of degradation by the effect of erosion, which affects the vegetation, including the riparian vegetation. The recuperation of this vegetation has been a great challenge in face of the difficulties to conciliate the guarantee of the livelihood of riverside families and turning them into an integral part of this reconstitution process of the riparian forest. The general objective of this study was to evaluate the use and occupation of the soils and to integrate and strengthen environmental studies for the preservation of the riparian vegetation. It also intended to contribute to the recuperation of degraded areas, forestation, reforestation and agroforestry ecosystems directed towards the Revitalization Program of the São Francisco River Basin at the municipalities of Curaçá, in the State of Bahia, Brazil. Initially, basic studies indicated that the municipality of Curaçá presented the largest proportional percentage of degraded areas studied (13,21%). The areas with shrub Caatinga vegetation cover the major part of the municipality which was studied. In a general, it can be said that in the municipality, practically the whole riparian vegetation has been removed and the majority of the soils related to fluvial sediments are, either in process of salinity and degradation, or present an elevated degree of both.
关键词：Riparian zone; edapho-environmental studies; Recuperation of degraded areas