1. State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
2. College of Life Science, Baicheng Normal University, Baicheng 137000, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. Jilin Da’an Agro-Ecosystem National Observation Research Station, Changchun Jingyuetan Remote Sensing Experiment Station, Da’an 131317, China
5. College of Life Sciences, Resources and Environment, Yichun University, Yichun 336000, China