文章基本信息

标题：CONFECÇÃO DO MAPA DE DENSIDADE DE DRENAGEM ATRAVÉS DE GEOTECNOLOGIAS VISANDO DEFINIR A VULNERABILIDADE AOS PROCESSOS EROSIVOS NA SUB-BACIA DO BAIXO PIRACICABA (SP)
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作者：Paulo Sérgio de Rezende Nascimento ; Reinaldo Antônio Petta ; Gilberto José Garcia 等
期刊名称：Estudos Geográficos: Revista Eletrônica de Geografia
印刷版ISSN：1678-698X
出版年度：2009
卷号：6
期号：1
页码：19-35
语种：English
出版社：UNESP - Campus de Rio Claro - IGCE
摘要：This work aims to accomplish a map of the density of drainage through techniques of remote sensing and kriging. Hence, vulnerable areas toward the erosive processes of the Sub-basin of the Low Piracicaba River (SP) have been defined. The present work employs the following procedures: the visual interpretation method of satellite images, the geostatistician method of kriging and digital processing of images to obtain the thematic map of interest. Such data indicated that four different areas of vulnerability, represented by classes of density of drainage, identified high, medium high, medium low and low density. The findings revealed that the area is heterogeneous, with regions of different intensities of erosive processes. Key-words: kriging, remote sensing, drainage density.