Study On The Arrangement Of Garden Plants In Guiyang Wetland Park

This paper is guided by the community ecology and landscape aesthetics theories or methods,based on the two aspects of ecological value and aesthetic value,then studies the site of 40 plant communities in Guiyang,like Huaxi National Urban Wetland Park,A Ha Hu Wetland Park,Flower Orchard Wetland Park and Lake Viewing Wetland Park.The species composition and characteristics of plant communities were analyzed and summarized.At the same time,the beauty evaluation method was used to evaluate 40 samples' plant landscape in four seasons,and generalize the overall characteristics of plant configuration of Guiyang Wetland Park,then extract the model of plant communities suitable for different functional requirements and different habitats,and guide the construction of urban gardens.Main findings are as follows:(1)The important values of different tree species show that there are more than 20 species of trees with high important values and more applications in Guiyang Wetland Park,among these the arbor layers are: Platanus,Cinnamomum camphora,Ginkgo biloba,Osmanthus fragrans,Metasequoia glyptostroboides Pterocarya stenoptera,Koelreuteria paniculata,Salix babylonica,Broussonetia papyrifera,Cerasus yedoensisAcer palmatum etc;Shrub layer are: Photinia Fraser,Loropetalum chinense,Ilex crenata var.Convexa,Buxus sinica,Fatsia japonica,Ligustrum quihoui,Rhododendron simsii etc;Herbs: Cortaderia selloana,Thalia dealbata,Canna indica,Hosta plantaginea,Clinopodium urticifolium,Iris tectorum,,Pontederia cordata,Hydrilla verticillata,,Vallisneria natansetc.(2)The results of plant community structure show that the plant community configuration model of Guiyang Wetland Park is dominated by the relatively stable and complex layer community structure,the main configuration model and the applied plant species are different in diversity habitats.The terrestrial plantcommunity was mainly composed of arbor-shrub-grass,arbor-(SOD)as a supplement;the model of shore plant configuration mainly with arbor-irrigation-grass,arbor-Grass and arbor-(SOD)as a supplement;aquatic plant configuration model mainly for the water-floating-submerged water,water-floating,water-immersion or a single layer as a supplement.(3)The results of plant community diversity studies show that plant diversity differs in different spatial community levels,herbaceous plants occupy absolute dominance in quantity and species,and the richness and distribution uniformity of arbor layer is higher than shrub layer.There are differences in plant diversity in different wetland parks,the species diversity and richness index of the Aha National Wetland Park is the first,and the evenness index is third;the species diversity index of Huaxi National Urban Wetland Park is third,the richness and evenness index rank second;the species diversity,richness and evenness index is the lowest;the species diversity index of the lake viewing Wetland Park is second,the richness index is the first,and the evenness index ranks third.(4)The results of the comprehensive beauty evaluation show that: the quality of plant landscape in four wetland parks is ranked as the plant landscape of AHa Lake Wetland Park,lake viewing Wetland Park,Huaxi National Urban Wetland Park and flower Orchard Wetland Park.Different wetland parks in different seasons show the different landscape quality,the quality of plant landscape in spring and autumn is better in Huaxi National Urban Wetland Park,Flower Orchard Wetland Park and Lake View Wetland Park.The quality of plant landscape of Aha National Wetland Park is better in the spring and summer.(5)There is consistency between the community's internal structure and the landscape appearance,the species richness index and the diversity index is high,also the complex hierarchy of communities and the value of beauty evaluation.There are also differences between the inner structure of community and landscape appearance,species richness index and diversity index are low,but if the community occupies the important position of tree species,if its diameter is large,the crown is plump,andposture is graceful,the seasonal phase change is rich,its beauty degree value also will be higher,the landscape evaluation value increases with the average diameter of breast.(6)Considering the ecological benefit and aesthetic value,the methods and techniques of plant disposition in Guiyang Wetland Park are analyzed in details,and the basic patterns of plant configuration in terrestrial,onshore and aquatic areas are summarized,then specific applied to the Gateway Wetland Park,creating a plant landscape with rich seasonal changes,along with ecological and aesthetic values.