1Faculty of Science, Nanjing Forestry University, Nanjing, China.
2Key Laboratory of Ecology, Faculty of Forest Resources and Environmental Science, Nanjing Forestry University, Nanjing, China.
Address for correspondence: Dr. Xiaoli Bu, Faculty of Science, Key Laboratory of ecology, Faculty of Forest Resources and Environmental Science, Nanjing Forestry University, Nanjing 210037, China. E-mail: [email protected]
This study was supported by the National Natural Science Foundation of China (no. 31300531 and no. 30670313), by the Chinese Forestry Public-Benefit Program (no. 201104002), by the Postdoctoral Science Foundation in China (no. 2013 M541681), by the Postdoctoral Science Foundation in Jiangsu Province (no. 1302150C), and by the Jiangsu University Advantage Discipline Construction Project.
Financial Disclosures/Conflicts of Interest: None reported.
Received December 16, 2013.
Accepted for publication May 14, 2014.