Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China;
Hubei Key Laboratory of Economic Forest Germplasm Improvement and Resources Comprehensive Utilization, Huanggang Normal University, Huanggang 438000, P.R.China;
Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, P.R.China;
Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, P.R.China;
Huanggang Normal University, Huanggang 438000, P.R.China;