The influence of ground depth to the shear wave velocity is discussed and the trend of shear wave velocity with.

The results show that the buried depth of groundwater levels varied between 6.

The results showed that the characteristics of the groundwater chemistry have changed remarkably in some place where the farmland had been irrigated by sewage for more then 40 years, and the buried depth of groundwater increased year after year due to the over-exploitation.

To confirm how the depth of soft soil layer affects the earthquake responses of subway stations, the finite-element method is used to model the dynamic interaction system of soil-subway station when five soft sites and one general site are used as the foundation of subway station respectively.

Hutuohe valley is a part of Huabei plain,where the plot groundwater is drawed severity.

Based on the ecological fitting theory,the thesis systematically analyzed the quantitative relationship between plant ecotype and groundwater depth as well as soil water content,according to the test data in sample area and the plant ecotypes in Horqin sandy land.

Based on the remote sensing data,surface soil salt and groundwater table data,this paper studied the relationships between the soil salinization and the vegetation,groundwater depth in Yinchuan plain.