Survey Of Plant Diversity And Landscape Appraisal Of Qian National Wetland Park

Wetlands are the most productive ecosystems and biodiversity,and they are particularly important natural resources for developing countries because they provide local people with diverse ecological services and social and economic benefits.The plant diversity of wetland landscapes can directly affect the quality of wetlands.At the same time,the status of wetland habitats for wildlife is affected.The investigation of plant diversity is an important part of biodiversity research,and there is a stable maintenance of ecological systems and ecological functions of wetland ecosystems.Important role.The richness of plant cultivation has a positive impact on wetland plant cover and restoration of wetland ecological functions.As wetland construction projects become more common,meaningful follow-up studies are needed to assess the changes in wetland ecosystems over time.The Urban Wetland Park makes it possible for people who work and study in the city to get close to and get to know the wetlands.It is also a good place for the public to spend leisure time on weekends and vacations.Therefore,research on the quality of plant community landscapes in the Wetland Park has been conducted on urban wetlands.The long-term development has an important role.The construction of Baoji Wetland Park is now in the early stage of development.The core area of the National Wetland Park of the Millennium Conference has already been basically completed,providing a good foundation for the construction of the entire wetland park.The Qian Wetland National Wetland Park,as an important part of Baoji City's future city construction,played an important role in the improvement of Baoji's ecological environment.At the same time,as a wetland park,the National Qian Wetland Park in Baoji City would be an area with wetland features such as aquaculture ponds,ponds,agricultural flooding wetlands,and irrigation sites that were inefficient for the original production and management.Constructed wetland for the purpose of protecting wetland resources,analyzing the composition and diversity of the plants,analyzing and studying the landscape quality of the plant community,and then providing the basis for the protection of wetland resources and plant design of the wetland park.This article surveyed the plants on the site of the National Wetland Park of the Qian Summit of Baoji City and conducts a comprehensive investigation.It conducted statistical analysis on the families and genera of the plants under investigation,analysis of life types,analysis of flora,and analysis and evaluation of plant diversity;The landscape plant communities in the park were surveyed and the composition analysis was performed.The beauty degree evaluation method was used,and the statistical methods for reducing the dimension and stratification to establish the correlation system were used to analyze the relationship between landscape plant constituents and landscape beauty factors.The results of the study were as follows:(1)There were 225 species of plants in the study area,belonging to 64 families and 186 genera.The dominant families included Gramineae,Compositae,Rosaceae,and leguminosae.A total of 124 wild species were reserved and used in the park construction,belonging to 31 families and 112 genera,101 cultivated species,and belonging to 45 families and 80 genera.(2)The Shannon-Wiener(H)diversity ranged from 0.881 to 2.277,the Simpson(DS)diversity ranged from 0.459 to 0.869,and the Pielous(JP)ranged from 0.2 to 0.522.Both the alpha diversity and richness indices showed similar trends.The scope of the plant diversity index was affected by the dual influence and interference of environmental pollution and dominant species caused by artificial planting.(3)There were more deciduous tree species in the arbor layer,and the number of species used for the coloring leaved and flowering plants of the arbor and shrub layer was basically up to the standard.Most of them were concentrated in the spring and the summer and autumn seasons are not enough.The proportion of the evergreen tree species used in the tree layer accounted for only 20%,and the plant landscape in winter was slightly depressed.The pruning of the shrub layer was somewhat polarized.Some of the landscapes that created natural styles were messy and lack sense of order and hierarchy.The protection and utilization of the wild species in the herb layer are relatively in place,and to some extent,the wild interest that the wetland park should have is retained.The landscape diversity of reeds and earthworms in large areas in the aquatic layer was relatively low,and appeared to be relatively single,and artificially planted reeds became dominant species in the aquatic layer,which largely limited the growth of wild species in the aquatic layer.(4)The landscape composition factors affecting beauty were mainly seven,which were in descending order of their contribution values: vertical layer,percentage of wild species,average viability,canopy closure,color leaf stage(flowering period)length The proportion of canopy and color of the forest canopy line(colored leaves,flowers)accounted for the largest proportion,among which canopy closure and wildness accounted for a significant negative correlation with the beauty level.The other factors had no significant effect on the landscape beauty of the plant community landscape.The contribution values of the four middle-level sub-items to the overall beauty were ranked as morphological evaluation,hierarchical perception evaluation,plant growth potential evaluation,and color evaluation.Therefore,in addition to pursuing a natural style of wild interest,wetland plant landscape construction should be created some exquisite and richly-diversified community structures.Trees should be used a combination of crowns and trunks,and they should not be obstructed the views of tourists to water sights.