Dissertação
Diagnóstico ambiental do meio físico do campo de instrução de Santa Maria (CISM)
Date
2012-03-20Registration in:
ANA, Kariza Dias Andrade Sant. ENVIRONMENTAL DIAGNOSIS OF THE PHYSICAL ENVIROMENT AT CAMPO DE INSTRUÇÃO DE SANTA MARIA (CISM). 2012. 127 f. Dissertação (Mestrado em Geociências) - Universidade Federal de Santa Maria, Santa Maria, 2012.
Author
Sant Ana, Kariza Dias Andrade
Institutions
Abstract
The Campo de Instrução de Santa Maria (CISM) is a military training area for armored
troops. Such practices have caused environmental impacts related to the destruction of
vegetation, erosion, and siltation of waterways. Since there is no environmental data for the
area, the following research aimed to develop an environmental diagnosis of the physical
environment of the studied area at CISM, where the military exercises take place, aiming to
assist in environmental planning in the area. The specific objectives aimed to understand the
relationship between geology, soils, geomorphology, vegetation cover, way of use and
occupation with the erosion processes that occur in the area, assess indirectly the behavior of
the erodibility of some soils and rocks happening at CISM, suggesting preventive,
environmental restoration and compensation actions. The upcoming research was conducted
in three stages: office, field, and laboratory studies. The procedures to conduct the research
included: field work to identify geology, soils and vegetation; geotechnical characterization
tests and erodibility, and preparation of the geomorphological map. The results showed that
the area of CISM has a fragile natural environment in relation to erosion; such characteristic is
related to the type of soil and rock that were evaluated as erodible in laboratory trials. This
weakness is increased by the way land is used. The most affected areas are located in the
geomorphological unit called the gently rolling hills and are related to roads and routes of
armor. The presence of ridges and ravines on such roads is mainly due to the lack of surface
drainage, the type of material exposed in the bed, soil compaction and lack of maintenance of
such roads and routes.