Research On The Construction And Protection Of Ecological Security Pattern In Lingqiu County Based On The Evaluation Of Ecological Protection Importance

Under the strategic background of ecological civilization construction,human beings should obey the natural environment and protect the environment,coordinate the stable coexistence between human beings and the natural environment,adhere to resource conservation,and construct an ecological security pattern,which has become one of the important contents of maintaining ecological system security.The ecological environment carrying capacity of the stable and safe area of the ecosystem,the harmonious and healthy living environment,the vigorous development of social economy and the long-term stability of the country less subject to natural disasters all play an important role and have important value significance.Lingqiu County is located in the Loess Plateau,the soil is loose,Lingqiu County soil erosion very sensitive and sensitive area accounts for 73% of the county land area,the overall sensitive and fragile ecological environment,water resources shortage phenomenon is serious,the quality of cultivated land is low,resource development and utilization restrictions,bearing ecological function pressure.Importance evaluation based on ecological protection to protect xuankongshi ecological security pattern and optimization research,through the relevant theoretical research at home and abroad,including ecological space theory,the theory of landscape ecology,ecological network theory,environment science,such as basic theory,and analyzes the concept of ecological security pattern,for this article lays the foundation of scientific research.This paper studied the practice and exploration of ecological security pattern at home and abroad,referred to some practical cases,and provided ideas for the construction and selection of ecological security pattern in Lingqiu County.This paper analyzes the current situation of Lingqiu County,including its regional overview,climate conditions,ecological and natural environment and social and economic conditions,and analyzes the spatial pattern basis of Lingqiu County,including the main matrix space,patch space and corridor space.The importance of ecological protection in Lingqiu County was evaluated and divided into three levels: extremely important ecological protection area,important ecological protection area and general important ecological protection area.The ecological source area was identified based on the ecological protection importance evaluation,and the ecological resistance surface of Lingqiu County was constructed by using the least cost path model.The ecological security pattern of Lingqiu County was obtained by simulating the corridor superimposed and identifying the small ecological space.The ecological spatial pattern of Lingqiu County was optimized.Under the guidance of relevant principles and objectives,ecological nodes and ecological corridors were optimized.Optimized xuankongshi ecological spatial pattern of ecological source point at 37,the core of ecological node has 15,general ecological node has 22,node 17 new ecology,ecological corridors article 58,newly added four ecological corridors,33 key ecological corridors,and general ecological corridor article 25,ecological security pattern of network connection degree is higher,more stable.The ecological space structure of Lingqiu County was optimized to construct the ecological protection structure of "one screen,one axis,one multi-point,four corridors and multiple lines".The overall zoning of Lingqiu County was divided into ecological function control area,ecological function restoration area,ecological function improvement area,agricultural space improvement area and urban space improvement area.Finally,the ecological patch was optimized,and the strategies of strengthening the construction of ecological woodland,constructing ecological barrier,improving grassland and wetland environment,promoting the interweaving of blue net,strengthening the protection of important river and lake systems,and ensuring drinking water safety protection and control were put forward.divided into soil and water loss and land desertification index.The results of ecosystem service importance assessment and ecological vulnerability assessment are superimposed and integrated to obtain the results of ecological protection importance.The ecological source area was identified based on the ecological protection importance evaluation,and the ecological resistance surface of Lingqiu County was constructed by using the least cost path model.The ecological security pattern of Lingqiu County was obtained by simulating the corridor superimposed and identifying the small ecological space.Finally,he ecological spatial pattern of Lingqiu County was optimized.Firstly,nder the guidance of relevant principles and objectives,the ecological point source is optimized,,and suggestions are put forward to strengthen the construction of ecological woodland,construct ecological barrier,mprove grassland and wetland environment,promote the interweaving of blue nets,strengthen the protection of important river and lake systems,nd ensure water security.Secondly,he ecological corridor was optimized,and the optimization strategy of corridor construction classification,targeted protection,strengthening corridor circulation and maintaining the stability of ecological network was put forward.The ecological spatial structure of Lingqiu County was optimized and ecological restoration zoning was carried out.