1. a Changjiang River Scientific Research Institute (CRSRI), Changjiang Water Resources Commission of the Ministry of Water Resources (CWRC) , Wuhan , 430010 , China
2. b Center for Natural Resources Development and Protection (NRDP), Department of Civil and Environmental Engineering, Temple University , Pennsylvania , 19122 , USA
3. c State Key Laboratory of Biogeology and Environmental Geology, School of Water Resources and Environmental Science, China University of Geosciences , Beijing , 100083 , China
4. d Hunan Survey and Design Institute & Team 402, Hunan Geology and Mineral Surveying and Exploring Bureau , Changsha , 410014 , China