The Investigation Of Plant Landscape Of Hefei Country Parks And Promotion Research

As an important part of urban green space,country parks have the main functions of recreation,ecological conservation,science popularization and education.As the organic elements of country parks,the quality of plant landscape is an important index to evaluate country parks.At present,the botanical landscape of country parks tends to be homogenized,and the design and evaluation indexes are relatively single,lacking of systematic and scientific nature.Therefore,the application analysis and quality evaluation of landscape plants in a country park has important application value and theoretical significance.In this thesis,based on the theoretical research of related disciplines,four typical country parks in the suburbs of Hefei City were selected as research sites through field investigation.Forty typical plant communities were selected as sample sites by general survey and detailed survey of sample sites.The current situation of plant landscape was investigated and analyzed,and the quality of plant landscape in sample sites was comprehensively evaluated by AHP.Based on the evaluation results,specific countermeasures for plant landscape optimization were proposed.The main research work and conclusions are as follows:（1）Study on sample site survey methodsⅰ)To clarify the characteristics of the sample site and propose that the sample site should have obvious ornamental plant communities,rather than plant communities in ecological research.ⅱ)The sample site selection method is typical sampling and random sampling is not suitable.ⅲ)Considering the integrity of the plant community landscape,the natural boundary of the plant community was taken as the size of the sample plot,rather than the fixed area sample plot in the sample method.（2）Investigation on plant landscape in Country Parks of Hefei Cityⅰ)The life types of landscape plants was mainly herbs and trees.ⅱ)Most plant habitats was xerophytic.ⅲ)The space types was mainly semi-open type and covered type.ⅳ)The ornamental parts was mainly flowers,leaves and fruits.The ornamental period was relatively long on the whole,mainly concentrated in spring,summer and autumn,and there was a lack of seasonal landscape in winter.ⅴ)Native plants had a high proportion of application,and invasive plants was occasionally seen.（3）Study on comprehensive evaluation system of plant landscape qualityⅰ)Three indexes are selected in the criterion layer.Focus on the weight,plant landscape characteristics>tourist psychological experience>landscape sustainability.ⅱ)There are thirteen factors were selected at the factor level,and the ranking of the weight were in order as follows:seasonal color of plant community>plant ornamental parts>pleasure>spatial hierarchy>plant community species diversity>excitement>green vision>proportion of native plants applied>novelty>harmony between plant and habitat in landscape construction>wild interest>quiet feeling>potential human disturbance degree.ⅲ)The model of the plant landscape quality evaluation based on AHP was constructed, which was as follows:E=0.186×S₁+0.344×S₂+0.076×S₃+0.028×S₄+0.047×S₅+0.072×S₆+0.022×S₇+0.009×S₈+0.108×S₉+0.011×S₁₀+0.055×S₁₁+0.026×S₁₂+0.016×S₁₃.Where,E is the comprehensive evaluation index of plant landscape quality in a certain place,and S_nis the score of the index named n in a certain place.（4）Evaluation and analysis of plant landscape quality in Country Parks of Hefei Cityⅰ)The ranking of average quality of plant landscape was as follows:Guanting National Ecological Park>Anhui Feixi Sanhe National Wetland Park>Hefei Binhu National Forest Park>Xiaolingnan Rural Revitalization Demonstration Zone.ⅱ)The overall plant landscape quality of the sample plots was in the middle,and the quality grade of the sample plots were gradeⅡand GradeⅢmostly.（5）Put forward the strategy to improve the plant landscape and give some suggestions to some sample landⅰ)To enrich plant species of community and construct plant communities with relatively different utilization modes of environmental resources.ⅱ)Take the Plant configuration as much as possible to mimic the natural distribution of the field.ⅲ)To increase the species of ornamental plants in winter.ⅳ)To establish institutionalized and normalized conservation management measures.ⅴ)Suggestions were given for some sample plots,and corresponding plant allocation patterns were recommended.