Comparative study on community structure and leaf type of four plant communities in Daqinggou

In order to get more evidence about relations of Fraxinus mandshurica community, Quercus mongolica community, Ulmus macrocarpa community and Artemisia halodendron community distributed from bottom to top in Daqinggou, we investigated and analyzed their community characteristics from family, genus,species and from arbor, shrub, grass, and from leaf type of plants. The results show that family, genus and species of Fraxinus mandshurica community are abundant, and that of Artemisia halodendron community is the least. Arbor in Fraxinus mandshurica community has the largest proportion. Shrub and grass in Ulmus macrocarpa community have the largest proportion. Small leaf plants account for the largest proportion in Daqinggou, then the medium leaf plants, the slender leaf plants the third. The micro leaf and large leaf plants are the least.