Funding for this research was provided by:
Second Tibetan Plateau Scientific Expedition and Research (2019QZKK0405)
National Natural Science Fundation of China (41877155)
National Basic Research Program of China (973 Program) (2018YFC0507004)
Article History
Received: 27 January 2020
Accepted: 29 July 2020
First Online: 6 August 2020