The Urbane Erosion in the Communities IIpor: rosemar Author: Rosemar Peixoto / Fernanda Peixoto
The ground is of
the natural resources more duramente punished by the disordered deforestation provoked by the human being, in the environment in which it lives. The forest fires when practiced in wide scale they withdraw all the nutritious existent ones in the ground, leaving unprotected and also reducing his fertility, providing the erosions. These, for his time, cause silting-up of rivers, of the lakes and also of the dams, causing the floods and also the girls micro basins. Since it will resolve or cure all the problems that afflict the urbane and rural communities, avoiding with that, the degradation of the ground /
erosion. This force (or agents) act in the simultaneous form: While you intern them they try to act in the direction of accenting the modelled, the day-pupils act in the direction of reducing it. So, to the same time in which the first ones provoke, for example, the elevation of determined areas and the reduction of others, every Monday ede accumulations go fazerv a work of stress or erosions in the elevated areas in the lowered areas.
In the areas of inclined ground, principally, the erosion process is pushed. The vegetable covering in this case has an important paper: It of obstructing or easing the erosive action caused by the water of rain and other times for the man himself. If these areas are deprived of vegetation, the water of the rain, what drips in the form of torrent is loading the land being able to provoke the appearance of great craters - the calls voçorocas - besides causing sliding of land and ravines, which form the throats blocked in the ravines, forming openings of several widths and lengths.
In the small cities, in period of intense rains, several land sliding was registered, houses collapsed or were buried, when deaths and great material damages are causing with everything that.
The falling of trees of the vegetation and the occupation of the slopes in order that they were used is eaten by me a bit of continuing constructions and dwellings in the small and great cities, they take place owing to several factors: The extremely low sálarios of the population of less income; the high rents cost; the lack of application of the urbane and rural projection, of investments in dwelling and of total inspection of the competent organs to obstruct the construction and with that, to avoid the erosion.
Brazil is endowed of a vast and dense hydrographic net, being that they detach a great deal of his rivers for the extension, for the width and also for the depth. As a result of the nature of the ground, there predominate the rivers of tablelands, which they present, in his bed rupturasde slope, fitted valleys, between other characteristics, which gives him a high potential for the generation of electric energy. As for the negabilidade, when his not regularized sad profile was given, it is somewhat damaged these rivers.
For this reason, if we examine when with the ground took care, we will be able to observe the existence only of a fine layer