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The gully formation processes of the basins and their implications on the slopes stability, a relief evolution model on the brazilian savanna domain

2005; EDUFU; Volume: 1; Issue: 1 Linguagem: Inglês

10.14393/sn-v1-2005-9701

1982-4513

Claudete Aparecida Dallevedove Baccaro, Ângêla Maria Soares,

Soil Management and Crop Yield

This article brings on the results of specific studies over erosion carried out for twenty years by a crew of researchers of Universidade Federal de Uberlândia. The researches at all took place in Uberlândia, Monte Carmelo, Irai de Minas counties and others, prior focusing the basins of Douradinho at Uberlândia, Pantaninho and Divisa at Irai de Minas and Boa Vista at Prata. This Triângulo Mineiro specific area has been through several geographical changes over the twentieth century implying alteration on its landscape structure. According to this, the need of knowing the processes dynamic as well as the diagnoses methods and also how to elaborate bating corrections and means to recover degraded areas has become extremely necessary. The main goal was the identification of either the mechanisms or the conditions stablishers responsible for erosion processes. “The tropical environment is characterized by a damaged landscape composed by potentially affected areas and others recently occupied which present initial effects. Both the areas need planning research. Whenever those environments get altered by human action, their fragilities show up” (Baccaro, 1994:19). The gully formation processes at the basins have been developed and/or dynamized by uncontrolled human action and its improperly usage of soil and occupation of the area not considering its dynamic balance limit. This limit represents how far the environment naturally stands for antropic alterations not destabilizing the slopes and generating irreversible catastrophic consequences. It is required a large knowledge of the superficial structure and its dynamic in order to identify the dynamic balance limit and also to elaborate the environmental diagnoses which details either the potentialities and fragilities considering the area, also giving information on how to better occupate it.