Funding for this research was provided by:
Guangxi Science and Technology Program (GuiKeAD18281086)
Guangxi Forestry Science and Technology Project (2016, 2014)
National Natural Science Foundation of China (31400522)
Department of Human Resources and Social Security of Guangxi Zhuang Autonomous Region (GuiCaiSheHan2018112)
Received: 27 July 2020
Accepted: 8 November 2020
First Online: 18 November 2020
Ethics approval and consent to participate
: No specific permits were required for the described field studies. The location is not privately-owned or protected in any way, and the field studies did not involve endangered or protected species.
: Not applicable.
: The authors declare that there is no conflict of interest.