Study On Landscape Space Evaluation And Optimization Of Polder Village Along The Yangtze River In Jiangsu Province

Under the background of the policy of rural revitalization and the construction of beautiful and livable villages,rural landscape,as an important part of the rural environment,has become an important part of the national rural construction work and has broad development significance.Under the guidance of the rural revitalization strategy,Jiangsu began to explore its own rural landscape construction mode.As the characteristic unit type of rural landscape,the polder village landscape with the regional features of region of rivers and lakes has become one of the important subjects of rural landscape construction,which in recent years has been highly regarded.While the rapid process of urbanization,brings urban resources to the polder village,it also has an impact on the landscape of the polder village.In the process of development,the texture of the polder on which the village depends has been damaged,and the differences and characteristics of the landscape of the village have been gradually weakened,which is not conducive to its sustainable development.As an advantageous development area with superior natural conditions,rich natural resources and leading economic development,the riverside region of Jiangsu Province has formed characteristic water village and polder village based on good water network foundation.With the increasing demand of villagers for a better life,it is urgent to promote the construction of a better landscape style of polder village.In the face of the lack of sufficient theoretical guidance and unsatisfactory effect of landscape construction of polder village in Jiangsu along the river,how to establish a scientific and effective evaluation system and propose reasonable optimization strategies have become a pressing issue for researchers to settle.This essay takes Shiye Island polder village landscape as the research object and divides it into multiple landscape Spaces for research.The purpose of this study is to explore an evaluation system compatible with the landscape space style of the polder village,in order to provide some reference and help for the landscape space construction of the polder village in China in future time.The specific research methods include: firstly,through literature review and field investigation,representative villages are selected to summarize their landscape spatial characteristics;Secondly,through previous research and expert consultation,the Analytic Hierarchy Process(AHP)was used as the evaluation method,and the expert scoring method was used to determine the weight of each landscape space,and the final Shiye Island polder village landscape evaluation model was obtained.Then,the final score of landscape space was calculated by collecting the scores of different people on each landscape space by means of questionnaires and field interview.Finally,in the basis of the evaluation results,the optimization and improvement strategy of landscape space of Shiye Island polder village was proposed.The main conclusions and findings of the study are as follows:(1)On the basis of the present research,the categories and features of landscape space are defined,which are seven landscape space types,namely,building settlement space,waterfront space,road and alley space,square space,plant space,courtyard space and polder space.This makes up for the lack of landscape space content of Shiye Island polder village and lays a theoretical foundation for the establishment of landscape space evaluation model.(2)Based on theoretical basis and expert consultation,a complete AHP evaluation model with 1 target layer,7 criterion layers and 29 factor layers is established.(3)The scores of each landscape space were substituted into the evaluation model through the evaluation questionnaire data collection.According to the scoring criteria,the evaluation results indicated that: the comprehensive score of landscape space of Shiye Island polder village was 0.64,and the evaluation was mediocre.The score of waterfront space and plant space is lower than 0.6,which requires more attention in the optimization design.In the index layer,the architectural style characteristics,waterfront space hydrophilicity,the interaction between road and alley space and water system,and the cultural evaluation value of plant space are all lower than 0.4,which is obviously insufficient and has a high room for improvement.(4)Put forward the principles and approaches applicable to landscape space optimization of Shiye Island polder village,combined with the overall planning theme,put forward specific optimization and improvement strategies for each landscape space,and coordinate with the design,in order to improve the overall level of landscape space of Shiye Island polder village and supply some assistance to the future improvement of polder village.The innovation point of this paper is in theory.AHP method is used to build a characteristic evaluation model which is compatible with the overall landscape pattern of the polder village,systematically evaluate and optimize the landscape space of the polder village,explore a new research Angle suitable for this characteristic village,and make up for the current lack of landscape space content of the polder village.In practice,the appropriate spatial optimization method of polder village landscape was explored to guide the practice of polder village landscape in Jiangsu along the river and help its sustainable and benign development.