Investigation Of Plant Diversity In Puhe National Wetland Park And Beauty Evaluation

Wetland park in the city provides urban people with a place for recreation and close contact and understanding of wetlands.Wetland plant landscape is an important part of wetland park,and the richness of wetland plants will play a positive role in the restoration of wetland ecological functions.Therefore,the study of plant community landscape in wetland park is of great help to the better development of urban wetland park.Puhe Wetland Park is one of the most important wetland ecosystems in Shenyang urban area,which plays an important role in the maintenance of regional species diversity and provides a good foundation for the construction of the whole wetland park.This study plays an important role in improving the ecological development of Shenyang.Based on PuHe Wetland Park plant to carry on the comprehensive field investigation,and the plant families,genera and species,and the life analysis,after further investigating plant diversity,landscape plant community and component analysis,the SBE method is adopted to evaluate the degree of plant landscape beauty,plant landscape optimization scheme was put forward,research results are as follows:(1)There were 59 species of vascular plants in the study area,belonging to 52 genera of 29 families of angiosperms.The dominant families were Gramineae,?Compositae,?Rosaceae.(2)For species diversity,shannon-wiener diversity index(H '),Pielou evenness index(JP)and Simpson diversity index(DS)were selected,all of which were tree layer >ground layer > shrub layer.The range of plant diversity index is affected by artificial planting and environmental pollution.(3)Deciduous tree species are mostly used in the tree layer,and the species and quantity of evergreen tree species are less applied,which will affect the quality of plant landscape in winter.Flowering plants do better in spring.The pruning condition of shrub layer is poorer,have the wild interest of natural type,but administrative levels feels,order feels weak a lot of.The herb layer retains the natural wild interest of wetland park.Artificial planting species,lotus and water lily,were used in the aquatic layer,and the growth condition was good,which restricted the growth of wild species,and the landscape diversity was low.(4)The plant communities in the park are rich in types.After investigation,19 typical plant landscapes were selected to evaluate the beauty degree,and it was found that among the plant landscapes of different community types,the plant communities with the highest average beauty degree were the sparse forest plant communities.Beauty value will increase with the increase of plant species;The beauty degree value will decrease with the growth trend.The results of the study on plants in Puhe National Wetland Park show that the diversity of plant communities has a certain impact on the plant landscape.This study can clarify the plant resources of Puhe Wetland Park,optimize the landscape of plant community,enhance the stability of plant community,and try to provide a theoretical basis for the construction of plant landscape in the park.This study has theoretical and practical significance and is worth further exploration.