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

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

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

过研究，可以看出以还环境为主富含有机沼相沉积环境、特定地、地形条件为地下水砷异常因。

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为漫滩相、沼相或冲相新近沉积软弱土,结构松散,沉积零乱,成分复杂,饱水可液化粉细砂层及粉土层较为发育,在地震或动力荷载作用下有可能发生软土震陷或砂土液化。