Numerical Solution of Flood Routing in Hangjiahu Region;

Temporal-spatial variation of elements in soils in the Hangjiahu area;

Study on the Groundwater Environmental Isotopes in the Hangjiahu Region;

Estimation of N loss loading by runoff from paddy field during submersed period in Hangjiahu area.;

Hangjiahu area suffered from high temperature and drought from June to September,2003.

With mining of groundwater, the land subsidence is constantly developed and brings about a series of harms, such as aggravating of damage and navigation inland river, in Hangjiahu plain, since the 1960s.

Hangjiahu Area(Hangjiahu Plain and Mogan Mountain) not only is one of the most important part in the delta of Yangtse River,but also is a important traffic hinge among Suzhou,Shanghai,Wuxi and Hangzhou cities.

Investigation on economic status,urbanization,industry structure,farming system,population and resource contradiction,disaster occurrence in Hangjiahu Region during the periodfrom late Ming Dynasty to late Qing Dynasty were conducted based on Web database.

By taking one drinking water plant in Hangjiahu region as a case,the division of drinking water source conservation area based on EFDC model is conducted,which provide references for protection and construction of drinking water source conservation area.

According to the specific hydro-geological conditions and characteristics in Hangzhou-Jiaxing-Huzhou area and DRASTIC index method,a modified assessment methods was proposed in this paper by choosing five parameters and determining the ratings and the weights of parameters.

High-resolution stratigraphic correlation method of the Quaternary in the Hangzhou-Jiaxing-Huzhou plain;