The Chao-bai river alluvial groundwater sustainable utilization evaluation
Chao-bai River alluvial fan area in Beijing city is the most important sources of groundwater supply area, annual production reached 600 million or so.Excessive mining of groundwater has evoked a serious decline in water level, water quality deterioration and ground subsidence and other geological environmental problems.Based on the analysis of hydro geological conditions on the basis of selecting the evaluation index of sustainable utilization of groundwater analysis, evaluation of sustainable utilization of groundwater resources in alluvial fan of Baihe area rushed by AHP.The evaluation results show that the sustainable utilization of groundwater in the study area better region accounted for 24.82%, mainly due to the recharge conditions better, and has a plentiful supply of water resources;sustainable utilization of medium area accounted for 70.06%, the water level dropped serious or poor supply condition cause;sustainable utilization of poor region accounted for 4.11%, the main reason is the groundwater renew ability, deep in the water quality is poor, and it is the main development area of land subsidence.
Groundwatersustainable utilizationevaluationindexanalytic hierarchy process
NETL
NSTL
万方数据
维普
