Optimization Allocation of Water Resources in the Mu Us Sandy Land Based on the WEAP-MODFLOW Coupled Model
Protecting water resources and the ecological environment is crucial for Yellow River governance and basin economic development.The Mu Us Sandy Land,a prime example of sand control in China,plays a pivotal role.Against the backdrop of economic reform and ecological civilization,optimizing water resource development and usage to meet rising living standards while preserving ecological gains is vital for high-quality development.Research on water resource optimization and carrying capacity in the Mu Us Sandy Land reveals that current policies fall short of balancing supply and demand,but tapping into water supply potential significantly improves outcomes.The optimal allocation plan is T14,with a carrying capacity of 3.80,approaching the"high-quality carrying"level.This plan includes achieving an advanced irrigation water use coefficient of 0.8 by 2030,ensuring that industrial water demand does not exceed 120.65 million cubic meters,moderately increasing the ecological water demand by 3%annually,and fully tapping the potential of underground water and drainage water utilization in the research area.This results in groundwater and drainage water availability reaching 432.79 million cubic meters and 247.44 million cubic meters respectively,while surface water availability remains unchanged at 31.38 million cubic meters annually.
optimization allocation of water resourcesWEAPMODFLOWMu Us Sandy Landwater resources carrying capacity