EXPLOITATION POTENTIAL OF GROUNDWATER SOURCE AREAS IN GANSU PROVINCE BASED ON ANALYTIC HIERARCHY PROCESS
Groundwater is an important source of water supply for domestic production and emergency drought water source in the arid-semi-arid region of Northwest China,and it is significance for guaranteeing drinking-water security,food security and ecological sustainability.Based on six indicators,including socio-economic profile,groundwater quality,groundwater resources,allowable groundwater exploitation,groundwater exploitation potential index,environmental geological problems caused by groundwater exploitation and government decision-making,the analytic hierarchy process(AHP)was used to evaluate the water supply potential and water resources guarantee capacity of groundwater sources in Gansu Province.The results show:There are 20 water sources with large exploitation potential,accounting for 32％,28 water sources with large exploitation potential,accounting for 44％,6 water sources with average exploitation potential,accounting for 10％,and 9 water sources with no exploitation potential,accounting for 14％.Accelerate the construction of alternate water sources,strengthen water quality supervision,monitoring,strengthen water protection can effectively enhance the water security capacity.The results of the study can be relevant counties and districts to solve the problem of urban water supply and sustainable development to provide a scientific basis.The results of the study can provide a scientific basis for solve urban water supply problems and sustainable development in the relevant counties.
groundwater sourcesanalytic hierarchy processexploitation potentialGansu Province
NETL
NSTL
万方数据
