1. School of Economics and Management, Southwest University of Science and Technology, Mianyang 621010, China
2. School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China
3. State Key Laboratory of Hydraulic Engineering Simulation and Safety, School of Civil Engineering, Tianjin University, Tianjin 300072, China
4. State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100044, China
5. College of Economics, Sichuan Agricultural University, Chengdu 611130, China