杭州西湖水体中叶绿素a含量与水质的关系

通过对西湖各湖区叶绿素α含量及水质理化因子分析，表明由于水体中N，P浓度较高，北里湖，岳湖，西里湖和外湖中灌类的生长主要受水温的影响，而不受N，P的限制，而小南湖埏于引水口，受钱塘江引水的影响较大其水质优于其余各湖区，通过生物治理试验的研究，表明在西湖中建立合理协调的水生生态系统，对于保持良好的水质，具有更为显著的效果。α

Quantity of chlorophyll a and water quality in the West Lake, Hangzhou

According to the analysis of quantity of chlorophyll a and physicochemical factors in the water of the West Lake, results show that the algae growth in Beili area, Yue area, Xili area and Wai area is mainly affected by the water temperature, but not limited by the concentration of N and P in the water. However, the water quality in Xiaonan area is better than other lake areas, because it lies in the diversion entrance and directly influenced by the drawing water from the Qiantang River. The studies on biological control experiments suggest that a reasonable and coordinated ecological system would play an important role in improving the water quality of the West Lake.