1. . College of Public Administration, Guizhou University of Finance and Economics, Guiyang 550025, China
2. . School of Economics and Management, Tongren University, Tongren, Guizhou 554300, China
3. . Guizhou Provincial Key Laboratory of Geographic State Monitoring of Watershed, Guizhou Education University, Guiyang 550018, China
4. . Guizhou Institute of Water Conservancy Science, Guiyang 550025, China