Funding for this research was provided by:
National Natural Science Foundation of China (51605228)
Natural Science Foundation of Jiangsu Province (BK20160742)
Project of Talent Peak Covering Six Industries in Jiangsu Province (JXQC-025)
Humanity and Social Science Youth Foundation of Ministry of Education of China (17YJC630048)
Fundamental Research Fund of Nanjing Agricultural University (KYZ201663)
Youth Science & Technology Innovation Project of Nanjing Forestry University (CX2016028)
Article History
Received: 1 May 2018
Accepted: 27 August 2018
First Online: 3 September 2018