Study On Evaluation And Optimization Of Traditional Village Plant Landscape In Southern Jiangsu Region

On the centenary of the founding of the party,the Sixth Plenary Session of the 19 th CPC Central Committee once again proposed to take rural revitalization as the mission and requirement of the new era,and traditional villages with long history and culture have become an important subject in Rural Revitalization.As an important part of traditional village landscape,plant landscape plays an important role in improving living environment and promoting the development of tourism.However,due to the lack of theoretical guidance,the effect of traditional village plant landscape at this stage is not satisfactory.How to establish a scientific and effective evaluation system and put forward a reasonable plant arrangement model has become an urgent problem for researchers.The research is based on the sub topic "Research on rural plant landscape construction and application technology"(Project No.: 2019YFD1100404)of the national key research and development program "Research on Key Technologies of rural ecological landscape construction".The purpose of this paper is to explore a scientific and reasonable plant arrangement method to better protect the style of traditional villages in Southern Jiangsu,in order to provide reference and help for the protection of traditional villages and the construction of rural plant landscape in the future.The specific research methods include: firstly,through questionnaire collection and statistics,select the three most representative traditional villages,carefully investigate and record the plant landscape of the village,understand the plant species,community structure and ornamental characteristics of the village,and select 13 representative plots for evaluation according to the principles;Secondly,through literature review and expert consultation,the evaluation model and evaluation process of AHP method and SBE method are determined,professionals and non professionals are invited to score respectively,and the evaluation results are analyzed in detail in combination with sample plots;Finally,the consistency of the evaluation results of the two methods is tested,and the standard deviation method is used to calculate the summary standard score and sort.Combined with the final results,the ways and suggestions of plant landscape optimization are put forward.The main conclusions of the study are as follows:(1)the tree species in the three investigated villages are the most abundant,followed by herbs and shrubs,and bamboo and vine species are relatively few;The proportion of native plants is high and the local flavor is strong;The proportion of evergreen and deciduous plants is moderate,which is in line with the local climate characteristics;There are too many morphological and floral plants,and too few plants with beautiful branches,so the number needs to be increased.(2)The AHP evaluation model is divided into 4 criteria layers and 15 factor layers.After establishing the weight,the top five factors are the characteristics of ancient and famous trees C5(0.138)> the characteristics of water Township C7(0.122)> plant color and seasonal change C2(0.105)> the rationality of plant arrangement C4(0.095)> the coordination degree between plants and water Township environment C14(0.088).The evaluation results show that the overall landscape quality is worrying,and some sample plots need to be optimized.(3)The consistency test of the evaluation results obtained by AHP method and SBE method passed.The difference is that AHP method is more inclined to make a more comprehensive and comprehensive evaluation of plant landscape,while SBE method pays more attention to the aesthetic evaluation of plants,and the score results of SBE method verify the scientificity and rationality of landscape aesthetic dimension score in AHP method.Through analytic hierarchy process(AHP)and scenic beauty evaluation(SBE),this paper obtains the influencing factors of traditional village plant landscape,and then puts forward universal and targeted suggestions for plant landscape optimization according to the evaluation results and ranking.At the same time,it can also provide strategic basis for the construction of traditional village plant landscape in other areas.