Funding for this research was provided by:
Joint Fund of the National Natural Science Foundation of China and the Karst Science Research Center of Guizhou Province (U1812401)
Guizhou Provincial Department of Science and Technology-Guizhou Normal University Joint Fund Project (LH [2017] 7369)
Doctoral Foundation of Guizhou Normal University (2016)
Sichuan Science and Technology Program (2019YFS0460)
Article History
First Online: 10 April 2020