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O trabalho, com base nos estudos integrados, discute elementos que proporcionam subsidios para o diagnostico ambiental integrado, caracteriza os sistemas ambientais, a vulnerabilidade ambiental e uso e ocupacao da sub-bacia hidrografica do riacho Santa Rosa. As bases conceituais estao elencadas na concepcao holistica, orientada para uma visao integrativa dos elementos da paisagem. Do ponto de vista metodologico o trabalho foi executado em tres etapas: 1 - analise de material bibliografico, cartografico e imagens de satelite; 2 - producao de mapas para auxilio no campo e 3 - trabalhos de campo para a comprovacao dos dados e correcao e adequacao do material cartografico produzido. Os sistemas ambientais caracterizados pelos sertoes ainda sao os sistemas ambientais mais vulneraveis a desertificacao do ponto de vista geoambiental, com o agravante dessas areas historicamente serem utilizadas para a subsistencia local, fruto de diversos vetores de degradacao. A B S T R A C T The work, based on integrated studies, discusses elements that provide grants for environmental assessment integrated, featuring environmental systems, environmental vulnerability, use, and occupation of the area. The conceptual bases are listed in the holistic approach, geared to an integrative view of landscape elements. From a methodological point of view, the work was carried out in five stages: bibliographic material analysis, mapping and satellite imagery; production of maps to aid in the field; fieldwork for the verification of the data and accuracy and adequacy of the produced cartographic material. Environmental systems characterized by hinterlands are still the most vulnerable areas to the desertification of geo-environmental point of view, with the aggravation of the areas traditionally used for local livelihoods because of various vectors of degradation. Keywords: Semiarid landscape. Environmental Systems. Environmental vulnerability. Use and occupation of land.

revista brasileira de geografia física

Sistemas ambientais, vulnerabilidade ambiental e uso e ocupação da sub-bacia hidrográfica do riacho Santa Rosa – Nordeste do Brasil (Environmental systems, vulnerability environmental and use and occupation of Santa Rosa river basin- Northeast Brazil)