Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China;
Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China;
Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China;
Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China;
Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China;
Key Laboratory of Vegetation Ecology, Ministry of Education, Changchun 130024, China;
Natural Resources Instute of Heilongjiang Academy of Sciences, Harbin 150040, China;
marsh in Sanjiang Plain; plant diversity; community patch; habitat fragmentation; small scale; edge effect;