With the litterbag method,the decompositions of two submerged macrophytes(Potamogeton pectinatus and Potamogeton crispus)growing in WuLiang SuHai Lake were in investigated in 58 days consecutively.

• 利用分解网袋法,对乌梁素海两种优势沉水植物进行了连续58天的室内腐烂分解试验,分析研究了不同水体营养盐浓度下这两种植物的干重损失及其氮、磷的消减过程。