Abstract
The Pantanal Park Roads, composed of the state roads MS-184 and MS-228, are located northwest of Mato Grosso do Sul, in the Paraguay River Basin, crossing the Pantanal, whose plains are susceptible to the natural inundation pulse. Despite their cultural, ecological, landscape and tourist importance, there are lack studies that would guide the proper planning and management of the land use and occupation of the region. Thus, the objective of this work was to apply the geoprocessing technique of map algebra, based on the concept of Ecodynamics, and with the inclusion of a new thematic chart: the flood area, which represents this dynamic characteristic of the region, for obtaining of natural and environmental vulnerability charts, the latter is distinguished by considering anthropic interventions on landscape units. To do this, among other procedures, the photointerpretation of satellite images was applied to update the vectors of the RADAMBRASIL charts from the scale of 1:1,000,000 to 1:250,000, bringing minimal representativeness of the relevant regional characteristics, as well as the application of the proposed technique. The results obtained are the maps of natural and environmental vulnerability to erosive processes, and the EPP are both natural and environmentally predominant with moderately stable/vulnerable areas with a tendency to be moderately vulnerable, and, any changes that occur in the landscape unit, can elevate its status to vulnerable to erosive processes, increasing the risk of soil loss.
Highlights
The necessity to maintain natural environments in protected areas, such as Conservation Units, is unquestionable, once any modification can compromise natural habitats, as well as the availability and quality of water resources
The conservation unit is fundamental to warrant the survival of living creatures in general in terrestrial and aquatic ecosystems
The preliminary survey of cartographic material showed that the location, true highway axes, influence area and soil cover had been obtained by Cavazzana et al (2005), and that in the RADAMBRASIL Project (1982) part of the cartographic material was available in the following charts: geology, geomorphology, soil and vegetation
Summary
The necessity to maintain natural environments in protected areas, such as Conservation Units, is unquestionable, once any modification can compromise natural habitats, as well as the availability and quality of water resources. National System of Conservation Units – SNUC, was created and consists of a legal instrument for the conservation of these natural environments (Brasil, 2000). The basic objective of the Brazilian Conservation Units – UC, of integral protection – Park category – is the preservation of natural ecosystems of large ecologic relevance and scenic beauty, being allowed the indirect use of natural resources only, that is, scientific research, development of activities and environmental interpretation, recreation in contact with nature and ecologic tourism (Brasil, 2000). The critical areas that need intervention must be thoroughly studied, in order to provide the elements for more effective actions for protection and control (Carrijo, 2005)
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