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Master's Dissertation
DOI
https://doi.org/10.11606/D.8.2019.tde-29012021-180437
Document
Author
Full name
Celio Eduardo Pagliaroni Menezes
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2019
Supervisor
Committee
Colangelo, Antonio Carlos (President)
Machado, Henrique Amorim
Morato, Rubia Gomes
Oliveira, Fábio Soares de
Title in Portuguese
Análise de fragilidade ambiental da bacia do ribeirão Bom Jesus utilizando técnicas de sistemas de informações geográficas: subsídios para o planejamento de paisagem - Pedregulhos, São Paulo
Keywords in Portuguese
Análise ambiental
Geografia física
Geomorfologia
Abstract in Portuguese
Esta dissertação tem como objetivo analisar as fragilidades ambientais diante das intervenções humanas na microbacia do ribeirão do Bom Jesus em Pedregulho - SP, uma área bastante representativa do processo de ocupação desordenada do Planalto Residual de Franca/Batatais por lavouras de café e cana. Como fundamento teórico-metodológico, adotou-se a proposta de Jurandyr Ross, de Análise empírica da fragilidade dos ambientes naturais e antropizados, baseada nos conceitos de Unidades Ecodinâmicas de Jean Tricart. O diagnóstico das fragilidades ambientais, sintetizado no Mapa de Fragilidade Potencial do Ambiente, baseou-se na correlação de três fatores de análise: o relevo, o solo e a cobertura vegetal/uso da terra. De forma geral, após a aplicação do modelo de Fragilidade Potencial dos Ambientes Naturais, a área foi classificada predominante com o grau "4 - Alto" de fragilidade, com 49% da área, principalmente na área Centro-Sudoeste e nos topos das colinas, onde há áreas mais íngremes e ao mesmo tempo com a cobertura vegetal removida e substituída por pastos ou plantações de café e cana, que expõe o solo à ação da erosão, além de intoxicarem o solo e os corpos d´água devido ao uso excessivo de fertilizantes químicos e agrotóxicos. Por fim, foram sugeridas práticas de conservação que podem minimizar ou controlar a degradação do ambiente.
Title in English
Analysis of the environmental fragility of the Bom Jesus stream basin using techniques of geographic information systems: subsidies for landscape planning - Pedregulho, São Paulo
Keywords in English
Environmental analysis
Geomorphology
Physical geography
Abstract in English
This work aims to analyze the environmental fragility in the face of human interventions in the Bom Jesus stream watershed in Pedregulho - SP, an area that is quite representative of the disordered occupation process of the Franca / Batatais Residual Plateau for coffee and sugarcane crops. As a theoretical and methodological foundation, we adopted Jurandyr Ross's proposal of Empirical Analysis of the fragility of natural and anthropized environments, based on the concepts of Jean Tricart's Ecodynamic Units. The diagnosis of environmental weaknesses, summarized in the Environment Potential Fragility Map, was based on the correlation of three analysis factors: relief, soil and vegetation cover / land use. In general, after applying the Potential Fragility of Natural Environments model, the area was classified predominantly with the "4 - High" degree of fragility, with 49% of the area, mainly in the Center-Southwest area and on the tops of the hills, where there are steeper areas and at the same time with the vegetation cover removed and replaced by pastures or coffee and sugarcane plantations, which exposes the soil to the action of erosion, in addition to intoxicating the soil and water bodies due to overuse of chemical and pesticide fertilizers. Finally, conservation practices that can minimize or control environmental degradation have been sugested.
 
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Publishing Date
2021-01-29
 
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