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Contribution to the study of soil loss dynamics through direct and indirect estimation techniques in rural properties of Getulina and Vera Cruz - SP

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Author(s):
Jéssica de Sousa Baldassarini
Total Authors: 1
Document type: Master's Dissertation
Press: Presidente Prudente. 2018-04-27.
Institution: Universidade Estadual Paulista (Unesp). Faculdade de Ciências e Tecnologia. Presidente Prudente
Defense date:
Advisor: João Osvaldo Rodrigues Nunes
Abstract

Looking to understanding the dynamics involving the soil loss, aiming at both its measurement as well as the actions aimed use at their conservation and recovery, is gaining space in the scientific world due to environmental and economic problems resulting from this degradation. These problems are not restricted to agricultural productivity, but also promote rural impoverishment, pollution and siltation water courses, social subjects financial and technological dependence, etc. The different methods of determination, a direct estimation, through the monitoring plots with erosion pins and an indirect, through the Universal Soil Loss Equation (USLE) was applied to understand the dynamics and relevant factors on soil loss and also to allow the results comparison obtained in the field where was applied the models. The study was conducted in two farms where we could find different use and occupation natural characteristics assigning them particular spatial complexities. One farm is located in Getulina and is intended for livestock (animals) and the other is located in Vera Cruz where they grow coffee, both in southeastern Brazil, São Paulo State. It was possible to identify the properties that make their natural features agricultural soils susceptible to loss through erosion, however, that the use and occupation forms of these spaces were fundamental for the understanding the loss totals recorded by determination methods. This complexity is motivated by the need to address the soil loss as geographical phenomenon, resulting from natural and social aspects that express demands, interests and socially constructed features that underlie your ownership. (AU)

FAPESP's process: 14/02230-6 - Direct and indirect method for determination of soil loss by erosive processes in agricultural properties located in the cities of Getulina and Vera Cruz – SP
Grantee:Jessica de Sousa Baldassarini
Support Opportunities: Scholarships in Brazil - Master