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滇池表层沉积物中总磷量平均为0.523％(P_2O_2),有效磷平均43.14ppm(P_2O_2),均在高含量范围内。总磷的水平分布有两个富集区。湖心富集区与粘土矿物向湖心富集有关,而海口富集区在一定程度上受工业污染的影响。磷的垂直分布,表层明显较高。 滇池沉积物中磷含量高与其邻近昆阳磷矿有关。浅水和磷源充足是富营养化的主要原因。据参1井500m岩芯分析,新生代以来滇池早已有过多次富营养化阶段,如今滇池又处于湖缩浅水阶段,富营养化是难以避免的自然规律。
The average total phosphorus in surface sediments of Dianchi Lake was 0.523% (P 2 O 2) and the effective phosphorus was 43.14ppm (P 2 O 2), all in the high content range. The total phosphorus distribution has two enrichment zones. Huxin enrichment area and clay minerals to the lake center enrichment related, and Haikou enrichment area to a certain extent, the impact of industrial pollution. The vertical distribution of phosphorus, the surface was significantly higher. The phosphorus content in sediments of Dianchi Lake is related to its adjacent Kunyang phosphate rock. Shallow water and adequate phosphorus source is the main reason for eutrophication. According to the reference to a well 500m core analysis, since the Cenozoic Dianchi Lake has had many stages of eutrophication, Dianchi Lake is now in the shallow water stage, eutrophication is an inevitable natural law.