Based on GMS management of shallow groundwater resource in Ningjin, China

Ningjin County is located the far end of Yellow River irrigation area which belongs to one of the serious lack of the water resources in Shandong province of China, in which water supplies mainly rely on groundwater, Yellow River division being as supplementary water supply. Now Ningjin is facing over exploitation of shallow groundwater in rural area and deep groundwater in the urban area. GMS software was used to simulate the groundwater dynamics of the whole county in the proposed four scenarios of reducing irrigation area by 20%, 30%, 40% and new water quantity of South-north Water Transfer as well as new Zhangweixinhe River water division under the current groundwater exploitation and allocated average annual amount of 52 million m3 of Yellow River water. The results showed that appropriate reduction of irrigation area and increase of passenger water introduction can effectively alleviate the overdraft of groundwater in Ningjin county.