Research On The Performance Evaluation Of Ecological Water Control Space In Traditional Villages In Cold Regions From The Perspective Of NBS

With the further practical application of Nature based Solutions(NBS)in China’s ecological civilization construction strategy,its significance for water disaster management has become increasingly prominent.Quantitative evaluation research based on its multidimensional perspective urgently needs practical demonstration.And cold villages have become the key to solving the problem due to their complex disaster types and numerous base numbers.From the perspective of planning,selecting typical traditional villages,constructing a suitable water control space evaluation system,quantitatively evaluating their fresh and long-lasting ecological wisdom construction experience and facility efficiency,is of great significance for proposing planning suggestions and quantitative support for ecological disaster prevention and urban-rural construction.This article takes Sanjiazi Village,Heilongjiang Province,one of the first traditional villages in China.Limitations of existing single factor evaluation research.In response to the limitations of existing research on single factor evaluation,based on the multidimensional value perspective of NBS,a multi criteria decision-making evaluation system suitable for cold regions is constructed.Based on the results of the comprehensive ecosystem service value evaluation,its value enhancement strategies are explored.Firstly,the cold climate and geographical location have become the main reasons for selecting villages.Based on the limited conditions of cold climate and village scale,international mature evaluation models and weighting methods were compared,and a theoretical method suitable for this article was selected to construct a set of technical routes suitable for complex systems;Secondly,based on the selected research model,an evaluation factor set for cold regions was established to quantitatively evaluate the performance of water control space from multiple dimensions such as ecology and society.The significance of each evaluation result was analyzed based on each section,and corresponding construction strategies were obtained;Once again,based on the summary conclusions of relevant weighting methods and the quantitative evaluation results of each value sector,the OWA operator of the coordinated complex factor system was introduced.The weight ranking of various cold area evaluation factors was re evaluated,and a multi criteria decisionmaking evaluation system was constructed.The trade-off and development protection efficiency evaluation results under various planning and decision-making scenarios were compared,and the differential evaluation of water control space performance under different planning and development orientations was conducted;Finally,the evaluation system was applied to other typical traditional villages in different types of cold regions,and the optimal scenario evaluation results were compared to verify its scientificity and scalability.Finally,a value enhancement strategy suitable for cold region riverside plain villages was proposed.Starting from NBS,this article establishes a factor set and weight level suitable for cold climate,and constructs an evaluation system suitable for water management space in cold villages.Not only has it innovated the subjective and objective coupling evaluation method for cold rural areas,but it has practical significance to provide scientific and quantitative support for rural planning,construction and transformation;At the same time,it enriches the methodological research on the evaluation of water management space in cold villages,providing innovative perspectives and thinking for related research.