滇池及流域环境水中磷与悬浮物的相关性分析

Correlation of Phosphorus and Suspended Solids in Environmental Water of Dianchi Lake Watershed

以滇池湖体20条河道及8处饮用水源的水样为研究对象,测定水体中的总磷、可溶性总磷、正磷酸盐、颗粒态磷和悬浮物的含量,并对磷的主要存在形式及其与悬浮物的相关性进行分析。结果表明:滇池及流域环境水体中悬浮物对磷存在很大影响,清洁水体中磷含量很低,主要以正磷酸盐的形式分布在水环境中;滇池湖水中磷主要存在形式为颗粒态磷,总磷、颗粒态磷、下降率与悬浮物具有显著正相关性;河道水体中颗粒态磷、下降率与悬浮物呈极显著正相关性,总磷与悬浮物呈显著正相关性。

In order to investigate the distribution of phosphorus and analyze the correlation of suspended solids, some samples in Dianchi Lake as well as the basin fiver and drinking water source were obtained to measure total phosphorus, soluble total phosphorus, phosphate, particulate phosphorus and suspended solids. Results showed that the suspended solid has a great influence on total phosphorus content in environmental water. The content of total phosphorus was very low in drinking water source, mainly in the form of phosphate distributed in water environment. Total phosphorus, particle phosphorus, decline rate and suspended solids have positive correlation in the Dianchi Lake, and mainly in the form of particulate phosphorus distributed. In the fiver water, particulate phosphorus and suspended solids showed a significant positive correlation, their decline rates were a significant positive correlation with suspended matter, and total phosphorus has a positive correlation with suspended matter.