Time-space analysis of groundwater in China plain area and its water quantity balance analysis

摘要

Taking the typical plain city of Shangqiu as an example, groundwater balance is analyzed by monitoring precipitation and groundwater level. A correlation analysis shows that there is a significant correlation between groundwater level change and precipitation. By formulating the groundwater balance evaluation criteria, it was found that the evaluation grade was grade III in 1997, and most of the years were at grade II. It is suggested that measures should be taken to adjust the industrial layout, optimize the planting structure, and strengthen the utilization of reclaimed water to realize the scientific utilization of groundwater resources.