ANALYSIS OF THE CONSERVATION STATE FROM THE PERMANENT PROTECTION AREAS AT THE SPRINGHEADS AND OF THE WATER FROM CABAÇAL RIVER DRAINAGE BASIN, MATO GROSSO STATE, BRAZIL

Resumo

The objective of this paper is to evaluate the conservation status of the Permanent Protection Areas (APPs) at the springheads and of the water from Cabaçal river drainage basin, in Mato Grosso state. The methodological procedures were digital image processing in a GIS and laboratory analysis of water, followed by quantification of Water Quality Indices and water conservation. The areas covered by vegetation within the drainage basin correspond to 22%, while agricultural/livestock activities use 76% of the area and less than 2% remain for reforestation. From the 6.034 springheads, 78% are in disagreement with the legislation. From the 5 sub-basins, 4 present Water Quality Indices classified as .High., and the sub-basin of Cabaçal river presented the worst Index, during both hydrologic seasons. The best Index was obtained by Branco river sub-basin. The sampling periods (dry and rainy season) did not show a seasonal influence on the results. One concludes that the losses of vegetation cover at the springheads of the drainage basin influenced negatively on the conservation indices of the water samples analyzed, although its physical-chemical and biological parameters were in accordance with the current legislation