Fragilidade Ambiental da Bacia Hidrográfica do Rio São João de Tiba, Extremo Sul da Bahia

The objective of this research was to produce a synthesis map of the environmental fragility of the São João de Tiba Hydrographic Basin located in the South End of Bahia. The basin was incorporated into the process of economic and private megaprojects of extensive territorial occupation such as cellulose, resulting in marked exploitation of natural resources and intense transformations in the landscape. The mapping was done in ArcGis 10 and used the SEI and CPRM geocartographic database. The integrated analysis of the basin allowed the production of products synthesizing the environmental dynamics that present different degrees of fragility of the natural and anthropized environments, which was constituted in a qualitative evaluation, produced from the environmental information. The basin has areas with environmental restrictions that present land uses incompatible with their natural characteristics, generating conditions of degradation of the landscape in the environmental systems in which they are found, what has contributed to the increase of environmental fragility.