Study On Plant Community Characteristics And Landscape Evaluation Of Ma'anshan City Park Green Space

With the rapid development of China's urbanization process of the city,the city has become the core areas of people's life and work,city residents has reached the well-off level,the quality of the living environment have higher requirements.The city green space is within the scope of the city,the only carrier to connect people with the natural environment,it is not only beautify the city.But also have indispensable ecological benefits.Park green space is the most representative of the landscape in the city green space system,have The greatest effects.The plant community landscape is the basic unit of the park green space,is the organic component of the city's most dynamic.Plant community landscape construction for the sustainable development of the city The exhibition,have great significance in building a conservation minded society and ecological garden city.The comprehensive use of plant ecology,landscape trees,landscape plants,landscape aesthetics and other disciplines of knowledge,to establish a stable,multi-level,sustainable development of the city economical plant community landscape,creating both landscape and ecological functions of city green space plant community landscape is an important topic in the development of modern city landscape construction.In this study,the park in Ma'anshan city as the research object,including Yushan Lake Park,South Lake Park,children's Park,Jiashan park,Yushan Park,plant ecology,landscape trees,landscape plants,landscape aesthetics and other multidisciplinary knowledge as the foundation,uses the sample survey method to analyze the characteristics of plant communities in Ma'anshan city park green;use beauty evaluation method,construction of plant community landscape evaluation system,the plant community landscape is divided into four categories,and the classification of typical case analysis.Based on the above research results,put forward constructive comments and suggestions for the optimization of landscape plant community on city park green space.The main research contents are as follows:(1)The characteristics of plant community30 plots of the 90 species,belonging to 45 families and 75 genera;43 species of trees;62 shrubs and herbs;by 16 species;4 species of bamboo grass and shrub species.Ratio of types of Trees,shrubs,herbs is 1:0.60:0.39.Cinnamomum camphora(L.)Presl,Osmanthus fragrans(Thunb.)Lour,Rhododendron simsii Planch Ophiopogon,Ophiopogon japonicus(Linn.f.)Ker-Gawl occupy absolute advantage,plant community species composition is rich in local;the low proportion of plants,plant community characteristics zone is not obvious.Tree high concentration from 3 to 15 meters range from 10 30cm DBH range;community health status of whole plant is good,good mountain park there are some plant diseases and insect pests.The level of structure,the evergreen and deciduous broad-leaved forest,deciduous broad-leaved forest,has a good prospect in the development of native woody plants.The vertical structure,the arbor shrub herb type,arbor shrub type,trees,shrubs,herbs are used,use less.The tree layer species important value of the top five are:Celtis sinensis Pers campho,Cinnamomum camphora(L.)Presl,Osmanthus sp,Lagerstroemia indica L,Eucommia ulmoides Oliver.Shrub species important value of the top five are:Aucuba japonica Tunb.var.variegata Dombr,Rhododendron simsii Planch,Photiniax fraseri,Loropetalum chinense var.rubrum,Ligustrum sinense 'Variegatum';the important value of native plants is low.The number of plant species in the park ranked as follows:Yushan Lake Park(45)>children's Park(42)>Jiashan park(30)>Yushan Park(29)>South Lake Park(23),shrub species ratio range of 1:0.39-1:0.9,the lowest Yushan Lake Park,South Lake Park is the highest,there is a certain proportion the gap between 1:3-1:6 and the ideal of shrubs.The tree layer diversity index and evenness index is higher than that of shrub layer tree layer diversity index,Children's Park>Yushan Lake Park>Yushan Park>South Lake Park>Jiashan Park.And the evenness index,Yushan Lake Park,children's Park are high,Jiashan park is lowest.In shrub layer diversity index,Children's Park is the highest,followed by Yushan Park>Jiashan park>Yushan Lake Park>South Lake,And the evenness index,Children's Park and Jiashan park are high,South Lake Park is the lowest(2)evaluation of scenic beauty of plant communityThe landscape beauty assessment method was used to measure the public landscape value,and the regression equation of scenic beauty was established based on the measured data:SBE=4.688+0.376(life type hierarchy)-0.450(tree species composition),+0,432(color)-0.233(density)-0.562(canopy density)+0.730(tree form)+0.274(texture)+0.406(significant non plant landscape influence factors)(R2=0.769)The life level,color,shape,texture and beauty value was positively correlated with species composition,density,canopy density and plant landscape value was negatively correlated;tree impact,0.730,followed by color and significant non plant landscape factors,select a typical case of four kinds of plant community landscape analysis,more intuitive analysis of plant landscape beauty elements influence on plant community landscape.According to the above conclusion,the construction and plant community landscape from two aspects of plant community,Ma'anshan city park green space plant community landscape optimization put forward measures and suggestions,starting from the Ma'anshan site conditions,puts forward the principles of landscape plant community parks,and the recommendation for the regional application of tree species.