Site soils in southern area of Jiangsu province belong to washland sediment or limnetic facies sediment.The components of sediment are very complex and process of sedimentation is in disorder.

苏南地区场地土主要漫滩相、湖沼相或冲湖相新近沉积软弱土,结构松散,沉积零乱,成分复杂,饱水可液化层及土层较发育,在地震或载的作用下有可能发生软土震陷或土液化。

We propose that As anomalism in groundwater possibly resulted from the combined effects of organic matter-enriched lacustrine sediments, geological setting and topographical characteristics.

通过研究，可以看出以还原环境主的富含有机质的湖沼相沉积环境、特定的地质、地形条件地下水砷异常的原因。

The Diatom Paleolimnology Data Cooperative (DPDC) is a database of diatom and associated ecological and paleolimnological data useful in studying global change.

硅藻古湖沼学数据库（DPDC）全球变化研究提供了有关硅藻植物数据、古湖沼学和其它生态学数据和记录等。