Phosphorus release from sediments in Dianchi Lake with algal growing was simulated under lab conditions. The results showed that the algae from Dianchi Lake grew normally in the culture solution with the sediment as the only phosphorus source. The sediment had a high potential to release phosphorus under the influence of algal growth, with a max releasing rate of 19.2 mg/(m2·d). When algae was growing, it absorbed a large amount of phosphorus, mainly in two ways. One is to replace phosphate ion existing in a form of Fe-bounded phosphorus in the sediment with OH-, and the other is to increase desorption of Fe-bounded phosphorus by organic complex chelating metal Fe ion. The form of phosphorus absorbed by algae from sediment was mainly Fe-bounded phosphorus.
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余天应,杨浩.藻类生长对滇池沉积物磷释放影响的研究[J].土壤,2005,37(3):321-325. YU Tian-ying, YANG Hao. EFFECT OF ALGAL GROWTH ON PHOSPHORUS RELEASE FROM SEDIMENT IN DIANCHI LAKE[J]. Soils,2005,37(3):321-325