Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049,China;
Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049,China;