Modified DRASTIC model for groundwater vulnerability assessment based on entropy weight;

Study on groundwater vulnerability assessment in coal mining area;

Study on the groundwater vulnerability assessment in Tangshan plain area.;

The second-level indicator system involves the divisional risk evaluation indicators reflecting urban geoenvironmental background, geological hazard risk and geochemical frangibility, which main.

According to the PRED feature in the environmental vulnerable areas in China,the four restricting factors which improve sustainable development ability have been summarized,and four basic ways which construct sustainable development ability in the environmental vulnerable areas in China have been pointed out.

Water resources utilization and tourism development in fragile ecology areas——taking perennial flow river basin as example;