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标题：PANORAMA AMBIENTAL DA MICRO BACIA DO IGARAPÉ GRANDE (The environmental panorama of the micro watershed of igarapé Grande)
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作者：João Theófilo Rocha PEREIRA ; Alysson Rogers Soares MACEDO ; Antônio Tolrino de Rezende VERAS 等
期刊名称：Revista ACTA Geográfica
印刷版ISSN：1980-5772
电子版ISSN：2177-4307
出版年度：2010
卷号：4
期号：7
页码：185-206
DOI：10.5654/actageo2010.0407.0013
出版社：Editora da Universidade Federal de Roraima (EdUFRR)
摘要：The city of Boa Vista, the state capital of Roraima, is located on the right bank of the River Branco, in mid-east part of the state. Its hydrographic network has the River Branco as its main fountainhead, consisting of sub-watersheds and several first-class channels. Among these sub-watersheds, those of the Grande, Pricumã and Mirandinha Igarapés stand out. The micro-watershed of the Grande Igarapé is entirely located within the Boa Vista urban area. Until the middle of the 1980s, its riparian vegetation had not been greatly impacted and its banks were occupied by subsistence agricultural activities on family-owned plots, which supplied staples to a small part of the population in the surrounding region. However, with the process of increased immigration that took place from the 1980s onwards, the situation changed completely with regards to the socio-environmental impacts on the area. Thus, the purpose of this study is to outline a socio-environmental diagnosis of the Grande Igarapé micro-watershed. In order to reach the intended objectives, we have used remote sensing techniques, field inspections, consultation with government entities that deal with the issue, as well as research of texts, articles and books that cover the subject with the purpose of identifying and proposing recommendations for the solution of existing socio-economic problems.
关键词：environment; city; urban center; hydro-resources