Plant Community Analysis And Vegetation Volune Of The Hunhe River Greenway In Shenyang

In this paper,88 plant communities in the Hunhe River Greenway in Shenyang were investiga ted.The combination of qualitative evaluation and quantitative analysis was used to study the plant community characteristics,community vegetation volune,ecological benefits and landscape beauty evaluation in the greenway.Provide reference and optimization suggestions for future greenway con struction and landscape upgrading work.The main findings of the paper are as follows:1.Study on the characteristics of greenway plant communities.There are 130 species of green way plants,belonging to 48 families and 91 genera,including 59 native tree species,accounting f or 45.38%.The proportion of arbor and shrub in the community is about 4:2:3,and the ratio of ev ergreen trees to deciduous trees is about 3:19.The quantitative characteristics of the arbor layer are higher in the important values of Salix babylonica,Picea wilsonii,Pinus tabuliformis and Malus spectabilis.The tree species with higher important values of Amygdalus triloba,Syringa oblata,Weigela florida,Ligustrum obtusifolium,Ulmus pumila 'Jinye' and Cornus alba.In terms of commu nity diversity analysis,the Simpson index of the arbor layer was 0.93,the Shannon-Weiner index was 2.88,the Pielou uniformity index was 0.86,the Simpson index of the shrub layer was 0.82,t he Shannon-Weiner index was 1.97,and the Pielou evenness index was 0.76.Overall comparison o f plant communities on both sides of the Hunhe River,from the plant species,plant types,season al structure,quantitative characteristics and diversity analysis,the North Shore is superior to the S outh Bank,the north bank of the plant species is more abundant,the community structure is more stable.2.Community vegetation volune research.Through statistical analysis of the community,the a verage value of vegetation volune is 1.77,and the distribution interval is 0.53?2.67.The distributio n of vegetation volune of the north bank is more uniform than that of the south bank,indicating t hat the community structure of the north bank is more stable.The average plant height and covera ge of the arbor layer were significantly correlated with the vegetation volune.The average DBH o f the arbor layer was significantly correlated with the vegetation volune.The arbor layer was the main factor affecting the vegetation volune of the community.The vegetation volune of the comm unity was significantly correlated with the cooling rate.The correlation between the vegetation vol une and the humidification rate of the community reached a significant level,and there was no si gnificant correlation between the vegetation volune and the blocking ultraviolet range.3.Plant landscape evaluation.88 plant communities were evaluated by SBE beauty evaluation method.The scores were between 1.2 and 2.6,the overall score was higher,and the overall plantcommunity was more ornamental.However,there are few plant species in the community,and th e middle and lower plants in the community structure have a single landscape.Based on the above research conclusions,this paper summarizes the advantages and disadvanta ges of the plant community of the Hunhe River Greenway,and proposes corresponding optimizatio n suggestions for the shortage,providing quantitative reference standards for plant community alloc ation in urban greenway construction,and making urban plant communities ecological and landscap e benefits.The aspect has been improved.