Vulnerability of the watersheds by universal equation of soil loss and thematic integration of morphometric, topographical, hydrological an land use/land cover parameters in Rio de Janeiro State, Brazil

Abstract

Watersheds delimited in the Rio de Janeiro State were parameterized by means of two methods indicate that a measure of environmental vulnerability, the universal equation of soil loss, which estimates the loss of soil in tones per hectare per year, and thematic integration of morphometric, topographical, hydrological an land use/land cover parameters, that result at vulnerability index. The parameters involved and the results were compared to verify the degree of association between methodologies, concluding that these methods are complementary to indicate the vulnerability of watersheds.

Keywords

• soil loss
• environment vulnerability
• watershed