Funding for this research was provided by:
the special fund project for the scientific research of the forestry public welfare industry (201304208)
the National Natural Science Foundation of China (31400494, 31270587)
Jiangsu Provincial Natural Science Foundation (BK20140977)
Priority Academic Program Development program of Jiangsu Higher Education Institutions (PAPD)
Article History
Received: 30 January 2015
Revised: 11 September 2015
Accepted: 25 March 2017
First Online: 20 April 2017