Study On Plant Species And Landscape Evaluation Of Park Green Space In Luoyang

In this study,taking china national garden,Luopu Park,Sui and Tang dynasties Botanical Garden,Wangcheng Park,and Xiyuan Park in Luo Yangas the research object for plant species survey,and select 100 typical plant community samples from 5parks to evaluate its landscape quality,the main results are as follows:?1?There are 108 families,271 genera and 389 species garden plants,136species of trees,109 species of shrubs,102 species of herbs,19 species of vines,11species of bamboo,and 12 species of aquatic species included,each occupying 35%28%,26%,5%,3%and 3%of the total number of plants.Among woody plants,there are 39 species of evergreen trees,28 species of evergreen shrubs,100 species of deciduous trees,and 78 species of deciduous shrubs.The dominant family are Rosaceae,Oleaceae,Leguminosae,Caprifoliaceae,Cypress,Pineaceae,Magnoliaceae,and Willow.Statistics on the source of the surveyed plants showed that there were 205native plants and 184 exotic plants.The analysis of the ornamental characteristics of the surveyed plants showed that there were 80 species of observing plants,182 species of observing plants,47 species of foliage plants,5 species of fruit trees,and 75 species of plants with composite ornamental characteristics,accounting for 20.6%,46.8%,12%,1.3%and 19.2%of the total;?2?The value of landscape beauty Y_SBEBE based on the SBE method is between-1.254 and 1.139,with 51 positive values and 49 negative values.The landscape quality values Y_AHPHP of the AHP method range from 3.001 to 8.469 mainly distributed in the range between 4 and 7.After sorting and comparing,the results of the two evaluation methods are not completely consistent,but there are 68 sample plots with less than 20sorting differences,accounting for 68%of all sample plots,which proves that the results of the two evaluation methods have high consistency.Comparing the two evaluation results,the results showed that the scores of tree shrub communities,trees and shrub communities,and water bank or wetland plant community scores were relatively high,ranking higher;the scores of community types of shrub grasses and shrub communities were lower,ranking behind.Based on the regression analysis of the two evaluation results,the landscape beauty of the plant community was mainly affected by the ornamental characteristics?C2?of the plant community,the coordination of the plant community and the overall environment?C4?,and the seasonal and hue changes?C3?of the plant community and the arbor layer traits?C6?,it effects of factors are as follows:Y_SBE?28?-1.704?10?0.106 C2?10?0.101C4?10?0.070 C3?10?0.041 C6??3?Through the research of this paper,the plant community of park greenland in Luoyang city is in the middle-upper level,but there are few high-quality plant communities.In the future,it is necessary to strengthen the maintenance and construction of park plant community landscapes,make full use of native plants with high ornamental value,increase the hierarchical structure of plant communities,further enrich the planting structure of peony,and rationally configure evergreen,deciduous,color leaf plants,and flower plants to create high quality plant community landscape.