Search

With the help of a three dimensional mathematical model of groundwater of Modflow, the high-efficiency agriculture park in Yuyao City was chosen as study area to research the groundwater dynamic regulation under various rainfall recharges, on the basis of collecting fundamental information of the park and conducting hydro-geological investigation. According to the hydrodynamic processes of groundwater level under different designed rainfall events and water-level control boundaries in rivers as well as different pipe drainage schemes, the relationship between groundwater level regulation and depth and spacing of drainage pipes was analyzed, and then groundwater dynamic drainage system was determined. The result shows that the optimized drainage scheme is the pipe drainage system with space width 15 m and 2.5 m for depth. The drainage rule for the shallow groundwater at complex hydrogeological region was explored, which will provide scientific decision-making reference for groundwater level control of precision agriculture and prevention and cure of soil salinization. [ABSTRACT FROM AUTHOR]