国家自然科学基金41671201,91525101;中国科学院重点部署项目KJZD-EW-TZ-G10;中国科学院地理科学与资源研究所特色研究所培育建设服务项目TSYJS04;可桢杰出青年学者计划2014RC101.National Natural Science Foundation of China,No.91525101 and 41671201;Key Program of the Chinese Academy of Sciences,No.KJZD-EW-TZ-G10;Grants from Institute of Geographical Sciences and Natural Resources Research,CAS,No.TSYJS04;Young Talents Program,by Institute of Geographical Sciences and Natural Resources Research,CAS,No.2014RC101.