Study On Plant Landscape Evaluation Of Pingtianhu Wetland Park In Chizhou City Based On SBE Method

Urban wetland park is a kind of wetland landscape which provides people with sightseeing,leisure,entertainment,science education and other activities,and has ecological benefits and aesthetic value.It is an important part of the national wetland protection system.However,plant landscape is an important link in the planning and design process of urban wetland park,so it is very necessary to study the plant configuration of urban wetland park[1].The west Wetland park of Chizhou Pingtian Lake is a typical urban wetland park in Chizhou.The whole project has been completed and opened,which is of great significance for plant landscape evaluation of Chizhou urban wetland park.Through the analysis of plant landscape functions in The Western Pingtianhu Wetland Park in Chizhou,this study summarized the data with statistical methods,selected the appropriate landscape factors,and built the relationship between landscape factors and scenic degree through calculation,so as to obtain the most important influencing factors on plant landscape scenic degree.Based on the analysis and evaluation results,the problems and deficiencies of plant landscape in Western Pingtianhu Wetland Park in Chizhou were summarized,and Suggestions for improvement were put forward to provide references for future construction and plant landscape design of wetland park in Chizhou city and surrounding cities.The details are as follows:?1?In September 2019,a field survey was conducted on the West Pingtianhu WetlandPark,36 groups of samples were selected for taking photos,and the plant configuration in the wetland was summarized and recorded.There were 64 species of plants in the sample plot,32 species of arbor plants,and a total of 10,352 plants,divided into 21 families and30 genera.There were 20 species of shrub plants,including 316,289 plants,which were divided into 17 families and 19 genera.Herbaceous plant species 4,plant distribution671,696 square meters,divided into 2 families 4 genera;There are 8 species of aquatic plants with a distribution of 69,638 square meters,divided into 6 families and 8 genera.The seasonal flower sea is 4,315 square meters.Among them,there were 10 species and 7genera of rosaceae,5 species and 5 genera of gramineae,4 species and 2 genera of Magnoliaceae,3 species and 3 genera of leguminous family,3 species and 3 genera of Luteaceae family,2 species and 1 genus of camellia family,2 species and 2 genera of Chlamydidae family,2 species and 2 genera of mallow family,2 species and 2 genera of Water lily family and 2 species and 2 genera of Chinese sequoia family.There are 18evergreen trees and 34 deciduous trees in woody plants.Among aquatic plants,there are 7emergent plants and 1 floating plant.?2?on the flat in west lake wetland park plant landscape of questionnaire survey,questionnaire raters beauty degree has 60 people,divided into professional 30 people,professional group of 30 people,a total of the 54 copy of valid questionnaire,through the statistical analysis can know,professionals and laypeople beauty of numerical linear wave is similar,the value of 0.943,significantly less than 0.05,it can be seen that professionals and laypeople judge relation,relative consistency between them,but because of professionals to understand plant growth habit,and non-professional personnel know about plant co.,LTD.,So there are differences in the score of the sample.?3?By analyzing THE SBE value,it can be concluded that the SBE value of sample 26is the largest,which is 1.264.Plant species include Magnolia officinalis+Camphor+Osmanthus fragrans+Saponin+Heather+Camellia+Bluegrass.The SBE value of sample 16 is the smallest,which is-2.414.The plant species include willows,camphor trees,bracken,bluegrass and asparagus fern,which is the plant configuration mode of Joe grass.?4?In the vertical structure,the SBE value of arbor,shrub and shrub type was 0.159,0.126,-0.442 and-0.0.075,respectively.Therefore,the SBE value of arbor,shrub and grass type was the highest.In the process of plant collocation,the structure of arbor,shrub and grass type was the most popular,followed by Joe,shrub and grass type,the least popular type,lacking intermediate transition layer and reducing the community beauty degree.?5?Through the back regression operation in SPSS,three landscape factors with less influence were eliminated successively,namely,the degree of harmony with other garden elements,the diversity of ornamental characteristics,and the color contrast,leaving five groups of effective landscape factors.After the establishment and detection of the equations for the five factors,it was concluded that the spatial occupancy of vegetation,the lamination structure and the co-regulation with the water body were positively correlated factors,and the significance values were 0.000,0.001 and 0.000 respectively,all of which were less than 0.05,which had a significant impact on the degree of beauty.The diversity of landscape timing sequence is a positive correlation factor,the significance value is 0.071,the significance value is greater than 0.05,the impact on the degree of beauty is not significant.The number of tree species is a negative correlation factor,the significance value is 0.007,the value is less than 0.05,the number of plant species has a significant impact on the degree of beauty.Combined with its own standard coefficient,the equation can be obtained asSBE_y=-3.412-0.108X₁+0.223X₂+0.107X₃+0.145X₄+0.196X₅?Composition of X1 tree species,occupancy of X2 vegetation space,diversity of X3landscape timing sequence,X4 layer structure,X5 and hydrophyte coordination??6?Among different communities,the model score of terrestrial communities is the highest,which is 0.108.The score of the aquatic community model is-0.010.The amphibious community was-0.988.Therefore,in the west of Pingtianhu Wetland Park,the terrestrial community is the most popular,followed by the aquatic community,and finally the aquatic community.