Northeast Inst. of Geography and Agricultural Ecology, CAS, Changchun 130012, China;
Northeast Inst. of Geography and Agricultural Ecology, CAS, Changchun 130012, China;
China Northeast Municipal Engineering Design Institute, Changchun 130021, China;
Northeast Inst. of Geography and Agricultural Ecology, CAS, Changchun 130012, China;
marsh; spatial and temporal dynamics; wetland management; landscape change; remotesensing;