Caracterização de conflitos de uso do solo em apps na bacia hidrográfica do córrego barra seca (pederneiras/sp)

• Main Author: Garcia, Yara Manfrin [UNESP]
• Publication Date: 2015
• Other Authors: Campos, Sergio [UNESP], Spadotto, Anselmo José [UNESP], Campos, Mariana de [UNESP], Pupo, Gabriel Rondina da Silveria [UNESP]
• Format: Article
• Language: por
• Source: Repositório Institucional da UNESP
• Download full: http://dx.doi.org/10.17224/EnergAgric.2015v30n1p68-73; http://hdl.handle.net/11449/137715
• topic: Permanent Preservation Areas; Land Use Mapping; Environmental Legislation; Geographic Information Systems.; Áreas de Preservação Permanente; Mapeamento do Uso da Terra; Legislação Ambiental; Sistemas de Informação Geográfica.

The present study aimed to map the classes of land use and their respective conflicts in Areas of Permanent Preservation (APPs) in Barra Seca Basin Stream, located in Guaianás district, in Pederneiras / SP. The study area is geographically located between the coordinates 48 º 55 ' 17 "to 48 º 50' 43 " longitude W Gr and 22º 23' 40" to 22º 17' 06"S latitude, with an area of 3937.59ha. For cartographic support, the planialtimetric digital map was used, published by Brazilian Institute of Geography and Statistics – IBGE (1973) referring to Agudos (SF -22 - ZB - II - 3), scale 1:50.000. The satellite image, bands 3, 4 and 5 of Landsat - 5 TM sensor (Thematic Mapper), from July 24, 2011, orbit 221, paragraph 75, with spatial resolution of 30 x 30 meters, provided by the National Institute for Space Research INPE were used. The Geographic Information System (GIS) used was IDRISI Selva and the software was CartaLinx. This work had the environmental legislation as legal support, specifically, the Federal Law No. 12.651/12, with changes made by Federal Law No. 12.727/12. The land uses in Barra Seca Basin Stream are riparian vagetation, forest, pastures, reforestation, sugar cane, eucalyptus, dam, paved roads, urban areas, sheds and others, leisure, other cultures and cemetery, and the most significant uses refer to sugar cane (1960.29ha) representing 49.81% of total Basin Stream, followed by reforestation (1025.01ha) and pastures (405.63ha). As Areas of Permanent Preservation, it was found that they have not been fully preserved according to the legislation; only 93.57ha (53.90% of total APPs) are preserved. Thus, the study of a particular stream basin becomes an important tool in order to understanding its dynamics in relation to the land use, in addition to recognizing the existing inter-relationships between the various elements and processes that operate at their limit and characterize their environmental problems.