This study investigates the groundwater dynamics due to two rainwater collection measures including permeable pavement and sunken green space.A primary school in Huaibei Plain is chosen as the study area.A numerical flow model is developed for quantitatively analyzing the responses of the groundwater level and exploitable amount to the two rainwater collection measures under different precipitation frequencies.Results suggest the exploitable amount of groundwater can be increased by 2.78％,2.79％and 2.81％for the precipitation frequencies of 25％,50％and 75％,respectively.The rainwater collection measures raise the groundwater level by 0-0.24 m under the average annual rainfall in 2017-2018.The ratio of such an increase to the aquifer thickness falls in the range of 0-0.96％.This study may be of importance in managing the groundwater resources in the study area.
关键词
数值模型/允许降深/地下水可开采量/透水铺装/下凹式绿地
Key words
numerical model/allowable drawdown/exploitable amount of groundwater/permeable pavement/sunken green space
维普
万方数据