Funding for this research was provided by:
Nature Science Foundation of China (31500261)
Science and Technology Innovation Fund Project on Forestry of Guangdong Province (2017KJCX006)
Youth Foundation of College of Forestry and Landscape Architecture of South China Agricultural University (201603)
Article History
Received: 26 March 2018
Accepted: 14 July 2018
First Online: 26 July 2018