Study On The Landscape Security Pattern Of Mountainous Towns Based On MCR Model Wufu Town As An Example

With the development of social economy,the expansion of the scale of construction land in the human settlement environment has changed the stability of the original land landscape pattern,and the contradiction between ecological protection and land development has become more acute.The landscape security pattern is to define and protect key ecological sources,combine with the analysis of different landscape processes to determine different levels of resistance,and build a different security pattern based on this,and finally superimpose different security patterns to form a comprehensive security The pattern is used to ensure the integrity of the ecosystem structure of the study area.At present,mountains and other ecologically sensitive areas have become a hotspot in the study of landscape security patterns.However,most of the domestic and foreign researches focus on large-scale macro-eco-environmental problems,and there are few reports on small and medium-scale mountain landscape security patterns.Wufu Town,Wuyishan City,as the only national-level pastoral complex demonstration site in Fujian Province,is a"provincial eco-town",which is also an important area for Wuyishan-Daiyun Mountain biodiversity protection.As a multi-policy overlay area,Wufu Town has a sustainable landscape ecological environment Sexual development is very important.This study is based on landscape ecology and landscape safety pattern theory,taking Wufu Town,Wuyishan City,Nanping City,Fujian Province as the research area,using the analytic hierarchy process,Delphi method,rain-flood runoff model,and minimum resistance Model to study the spatial security pattern of mountain natural and biological elements.The evaluation model is established through the analysis of relevant literature,data,and expert questionnaires to determine the ecological source,and determine the classification of related factors and resistance levels.Then,the resistance surface is constructed using the minimum resistance model,and the expert scoring method and AHP Law for empowerment.The results show that:in the comprehensive security pattern of Wufu Town,Wufu Town of Wuyishan City has a total area of 177.46km~2,of which the low safety level area is 23.42km~2,accounting for 13.13%of the total area;the medium safety level area is 50.49km~2,accounting for28.45%of the total area;high The safety level area is 103.55km~2,accounting for 58.42%of the total area.Comparing the security patterns of the three security levels with the existing master plan,it is proposed that the scale of construction land under the pattern of low security levels should be controlled to avoid larger-scale development and construction,restore natural features,and maintain patch ecology as much as possible.Benefits;the scale and location of some residential land under the medium safety level pattern should be adjusted and the green area should be increased;the development intensity of construction land under the high safety level pattern is proportional to the distance from the low and medium safety level areas.Repair and adjust the artificially built areas of strategic significance to reduce the interference of artificial construction on the ecological environment.Compare the landscape security pattern at three scales with the existing master plan,and put forward scientific and reasonable optimization suggestions.With a view to providing reference and reference for related research.