Morphometric analysis of the watershed of Veloso and Café streams

Autores

  • Danila Morena Fideles UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO"
  • Gabriela Trindade Pires
  • Felipe José Cerignone
  • César Vincensi Gabbi Tavares
  • Valdemir Antônio Rodrigues

DOI:

https://doi.org/10.15361/1984-5529.2016v44n2p255-262

Resumo

The study aimed to perform the morphometric characterization of the watershed of Veloso and Café streams, located in the city of Lençóis Paulista-SP, aiming to demonstrate the possibilities of use of morphometric parameters as supporting elements to definition and development of indicators for environmental management. The methodology was based on the use of satellite images, topographic maps and specialized software (ArcGIS 10.1) by sizing the watershed and calculating the morphometric indices. The watershed is of 4th order and has an area of 25.55 km² and oval to round shape, indicating a high to medium tendency to floods by torrential rains. On the other hand, drainage density (0.92 km km-2), average slope (4.74%), maximum altimetric amplitude (60 m), relief ratio (0.013) and roughness coefficient (4.34) are low indices and point to a slow outflow and good ratio infiltration-runoff, reducing erosion risks.

 

Additional keywords: Geoprocessing, Environmental Management, Watershed Management.

Publicado

30/03/2016

Edição

Seção

Solos e Nutrição de Plantas - Soils and Plant Nutrition