Funding for this research was provided by:
the National Key Research and Development Program of the Ministry of Science and Technology of China (2016YFD0600205)
the Fundamental Research Funds for the Central Universities (2015ZCQ-LX-03)
the Normal Research Funds for Taiyueshan Long Term Forest Ecosystem Research Station (2017-, 2018-LYPT-DW-153)
Article History
Received: 9 April 2019
Accepted: 29 July 2019
First Online: 5 August 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.