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对东太湖一个横断面上8个样点、1个网围养鱼区样点、1个鱼塘样点的表层10cm沉积物含磷量进行了分层采样分析．并以表层沉积物和湖水组成系统．通过磷添加研究了沉积物的磷饱和度．结果表明，东太湘表层沉积物总磷含量已经达到了0．0465％－0．0993％，略低于鱼塘沉积物的含磷量．表层沉积物的磷蓄积量已经基本达到饱和，当湖水中PO3-4－P含量达到了200－300μg／L（是现在湖水实际含量的25－48倍），表层沉积物的总磷含量也只能增加0．037－0．077mg／g（是现在沉积物实际含量的0．06－0．14倍）．网围养殖区沉积物磷含量和磷饱和度均高于非养殖区．
The phosphorus content of 10 cm sediments in the surface of a fish pond sample was stratified and sampled for a sample of 8 samples in a cross-section of Dongtai Lake, 1 net fish-farming area. And surface sediments and lake water system. Phosphorus saturation of sediments was studied by phosphorus addition. The results showed that the TP content of the surface sediments of Dongtai Xiang had reached 0.0465% -0.0993%, slightly lower than that of the sediments of fish ponds. When the PO3-4-P content in the lake reaches 200-300μg / L (which is 25-48 times of the current actual lake water content), the total phosphorus content in the surface sediments is only Can increase 0.037-0.077mg / g (now 0.06-0.14 times the actual content of sediment). The net phosphorus content and phosphorus saturation in the net culture area were higher than those in the non-culture area.