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Exploratory analysis of quality parameters of the biosystems at the sub basin from Posses in Extrema – MG This research was developed in 2015 at 109 water springs of the sub basin from Posses, Extrema, MG, that are inserted at Jaguari’s River basin. The result is that the water spring’s biosystem is composed by a group of biological, ecological and geological functions, and they interact with each one and they are completed with antropic action and the hydrological cycle. The objective of this research was to present a practical tool of management, and that must be objective and efficient to analyze the quality of water spring's biosystem, based on studies and analysis of the indicators that involves it's dynamic, doing the interaction between ecological, social and anthropical dimensions very important, organizing the aspects in a quantitative and qualitative form and the objective must be identify in each level of conservation is the water spring's biosystem analized, after that the analyzis tool named by "Protocolo de Campo" will be used by water quality managers. To get this, the “Protocolo de Campo” was composed by 11 indicators and a research of the quality parameters of the water spring’s biosystems from Posses in Extrema MG was made too, for this were collected water samples at the water springs, flow measurement and analysis of the most probable number of coliforms. The data obtained in the field by the “Protocolo de Campo” revealed that of the 109 water spring’s biosystems analized, 64 are in the “disturbed group”, 41 are in the “conserved group” and only 4 are in the “preserved group”. None of them is in the “degraded group”, but the research has noticed that the surroundings of the water springs is ocuppied in the most by pasture, being 92,66%, eucalyptus, being 7,34%, they represent 43,12% of herbaceous physiognomy, 43,12% represent shrub physiognomy between 1 and 5 meters and 13,76% represent shrub physiognomy above 5 meters, even more than 90% of the water spring’s biosystem analized presented absence of rubbish, absence of fire and absence of silting.

Análise exploratória de parâmetros de qualidade dos biossistemas das nascentes da Sub Bacia de Posses em Extrema - MG