Dynamic analysis of land subsidence in the Xibei-Chengnan area since the restriction and prohibition of groundwater pumping

By the end of October 2005,all of the 4831 extraction wells were completely closed,which reduced groundwater exploitation by 2.8 billion cubic meters.Since then,the groundwater level in this area has achieved varying degrees of restoration,and most of the ground settling velocity have slowed down significantly.A small amount of special signs of rebound appeared in some areas,which are response to the Restriction and Prohibition on the Groundwater Pumping.Xibei-Chengnan area,as one of the special...