Research Center of Wetland Ecology and Environment;
Northeast Institute of Geography and Agroecology;
Chinese Academy of Sciences;
Changchun 130102;
China;
Heilongjiang Agricultural Reclamation Survey Design and Research Institute;
Harbin 150090;
China;
Jilin Provincial Joint Key Laboratory of Changbai Mountain Wetland and Ecology;
Changchun 130102;
China;
Department of Environmental Science and Engineering;
Southwest Forestry College;
Kunming 650224 China;
Institute of Tibetan Forestry Survey and Planning;
Forestry Department of Tibet;
Lhasa 850000;
China;