摘要
In light of the hydrochemical monitoring data of 22 groundwater discharge points, the differences of the hydrochemic features and the impact factors of the groundwater in and around the Jinfoshan natural reserve,Chongqing is compared in this paper. The results show that the pH values of the springs outside the reserve are lower than those inside, but the conductivity is higher. Over all, the water quality inside the reserve is significantly better than the outside. It can clearly be seen that the establishment of natural reserves has positive significance for karst water protection.