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对阳澄湖两个短柱状样进行了地层年代以及各种环境指标分析．结果表明，湖底沉积物由校长期沉积间断所分割的3个岩性层组成：下部层C属再沉积的更新世晚期硬土层；中部层B为全新世沉积；上部层A为近100年以来的表层沉积．对层A的详细分析显示，本世纪以来，特别是70－80年代以来，金属元素、营养元素和色素的沉积通量明显提高，说明湖泊重金属污染和富营养化程度的不断加重．
Two short columns of Yangcheng Lake were stratigraphically analyzed and various environmental indicators were analyzed. The results show that the lacustrine sediments consist of three lithologic layers separated by intermittent sedimentation: the lower layer C belongs to the redeposited late Pleistocene hard layer; the middle layer B is Holocene; the upper layer A is nearly 100 years Since the deposition of the surface. A detailed analysis of layer A shows that since the 1970s and 1980s, the deposition fluxes of metal elements, nutrients and pigments have been significantly increased, which indicates that the heavy metal pollution and eutrophication of lakes continue to worsen.