The Comparison Between Typical Natural Plant Community And Artificial Plant Community In Shenyang

Under the premise and background of establishing forest city in Shenyang, the studyon ecological arrangement of near natural plant communities which have rationalcomposition, abundant species, good landscapes, outstanding ecological function haveimportant practical significance. By comparison of the plots between natural plantcommunity and artificial plant community, the difference of soil physical and chemicalproperties, species and their quantitative characteristics, biodiversity indices, canopyindices were analyzed. The interspecific correlation of species which importance valueswere upfront was also analyzed. According to the analysis of the interspecific correlationbetween the same layers and the different layers, the difference between natural plantcommunity and artificial plant community was understood, and the interal formationmechanism was explored, so to simulate natural plant community to arrange community onurban greenland can offer feasible approaches and useful methods. The results showed thatsample plots of natural plant community included62species belong to30families,50genera. The species diversity was relatively stable, the species distribution was uniform,canopy density was bigger. Most of interspecies were positively related. Sample plots ofartificial plant community included60species belong to24families,44genera. Thespecies evenness index and richness index had some wave, the canopy density was smaller.Most of interspecies were also positively related. Overall, by comparison of natural plantcommunity and artificial plant community, it was found that they had the same soilphysical and chemical properties, and this provided prerequisite for stimulating naturalplant community to construct artificial plant community. At the same time, there wereobviously differenced in species diversity and capony indice between them. So, inproceeding the plant ecological arrangement in urban greenland, we should pay attention to:(1) Increase to use the indigenous species, such as Quercus mongolica, Pinustabulaeformis, etc;(2) Improve the eveness and richment of species distribution;(3)Improve canopy structure through the collection of species, pay attention to collectdifferent tall trees with different tree height and different DBH;(4) Interspecific correlation should be mainly considered when selecting plant species, and species pairs are ofsignificantly positive association should be selected. Their requirement to habitat iscomplementary, the species pairs are mutualism. It plays a very important role instabilization of plant community. For instance, Pinus tabulaeformis+Quercus mongolica+Crataegus pinnatifida, etc; Pinus tabulaeformis+Euonymus verrucosus, Lonicera maackii,Corylus heterophylla, Lespedeza bicolor, Cerasus tomentosa and so on; Pinustabulaeformis+Phryma leptostachya, Polygonatum odoratum, Viola acuminate, Violaprionantha, Viola collina, etc; Euonymus verrucosus+Phryma leptostachya, Polygonatumodoratum, Viola acuminate, Convallaria majalis, Viola prionantha, Chelidonium majus,etc. Then based on it, some rational and feasible suggestions were put forward toconstitute artificial plant community close to natural community in Shenyang. It can makecontribution for building forest city for Shenyang.