中国科学院地理资源所“一三五”战略科技计划项目2012QY004;中国科学院重点部署项目KZZD-EW-06-02;国家自然科学基金项目41171108Exploratory Forefront Project for the Strategic Science Plan in IGSNRR,CAS,No.2012QY004; Key Research Program of the Chinese Academy of Sciences,No.KZZD-EW-06-02; National Natural Science Foundation of China,No.41171108