Estudo sazonal limnológico da microbacia hidrográfica do Lajeado Xaxim.

Abstract

The objective of this project was to study the limnological lakes of the Lajeado Xaxim River Watershed, through microbiological and physicit-chemistries variables, that were monitored monitored during the year 2004 by the Monitoring program of tributaries from the left bank of Itaipu Reservoir. The project was based in the seasonal variation of the parameters, it was tryed to identify tendencies in the behavior of these elements, with the quality of water in the micro basin. One in accordance with observed that the water of the watershed kept compatible quality to its classification, specifications of Resolution CONAMA n° 357, during all the monitored period, with exception in the month of August for the variable DBO. With regard to analysis of the sazonalidade, carried through on the basis of Test T, was not possible to identify to trends in the behavior of the parameters analyzed with relation the stations summer and winter. The gotten results had been compared with the use and the occupation of the ground and with the precipitation in the watershed.