Investigation and evaluation of water quality of blue lion tam reservoir in Guilin city

Eight water quality parameters which including pH, conductivity, total nitrogen, total phosphorus, potassium permanganate, dissolved oxygen, five days biochemical oxygen demand and mercury of the blue lion tam reservoir in Guilin city were monitored. Systematically analyzed the water quality situation of East and West lake and the different water quality parameters in the spatial variation characteristics of the blue lion tam reservoir. Discussed the correlation between the different water quality parameters, and evaluated the five water quality parameters of the blue lion tam reservoir. The results showed that under the influence of the human activities, the water eutrophication, the life pollution, the aquaculture pollution and the agricultural pollution were the main reasons of the reservoir water pollution. Based on the assessment, we put forward some suggestions on the reservoir protection and management.