Abstract: Reservoir pollutions have become common phenomena in the water-body utilization processes embodying the reservoirs functions and their changes,thus study on relations of the reservoir water qualities with its functions will make sure the scientific utilization.In Henan Province,Xinyang is one of the areas holding the most reservoirs in which Nanwan Reservoir is the greatest and has developed the most functions that has played a key role in facilitating the regionally social progresses at present.Using Nanw...