Functional Zoning Of Jiajinshan National Forest Park Based On Ecological Sensitivity Analysis

With the rapid development of national forestry ecological civilization construction,rational planning and utilization of forest resources,forest parks have become an important part of the development of modern forestry.The division of forest park functional zoning is an important link in the whole process of forest park planning.The rationality and scientificalness of the functional zoning is an key guarantee for the sustainable development of forest park.At the same time,forest parks have three main functions:i.e protecting ecosystem and biodiversity,disseminating natural education of forest culture and developing forest eco-tourism.The rationality of functional zoning is directly related to the effective play of the three functions of forest parks.At present,most of the research focuses on the integrated planning,management and resource evaluation of forest parks in China.The research on functional zoning of forest parks is lack from another point of view,and the scientific nature of functional zoning of forest parks needs to be improved urgently.Based on the comprehensive survey of Jiajin Mountain(Xiaojin)National Forest Park in Sichuan Province,the framework of ecological sensitivity assessment of Jiajin Mountain(Xiaojin)National Forest Park in Sichuan Province is established by field investigation,analytic hierarchy process and GIS spatial analysis.The evaluation index factors of ecological sensitivity were selected,and the spatial overlay analysis function of GIS technology was used to analyze Jiajin Mountain in Sichuan Province with single factor.The ecological sensitivity of Xiaojin National Forest Park was evaluated,and the functional zoning of Jiajin Mountain National Forest Park in Sichuan Province was planned according to the results of ecological sensitivity evaluation.The main results are as follows:(1)Through analytic hierarchy process,seven evaluation index factors of ecological sensitivity of Forest Park are slope,slope direction,elevation,vegetation type,vegetation coverage,water buffering and land use type.(2)A complete ecological sensitivity evaluation system of Jiajin Mountain(Xiaojin)National Forest Park in Sichuan Province was constructed.The single factor distribution diagram and single factor sensitivity grading diagram of seven indicators were obtained.The weights of each factor were obtained by analytic hierarchy process.After weighted superposition analysis of seven factors,the comprehensive evaluation results of ecological sensitivity of Jiajin Mountain(Xiaojin)National Forest Park in Sichuan Province were obtained and classified.It is divided into four grades:insensitive,low sensitive,sensitive and extremely sensitive.The four forest park areas are 1033.98 hm~2,11138.65 hm~2,7255.24 hm~2 and 3988.98 hm~2 at the same level.The four grades of Muerzhaigou landscape area are 433.93 hm~2 7019.88 hm~2,4713.33 hm~2and 2275.55 hm~2,accounting for3.00%,48.61%,32.63%and 15.76%of Muerzhaigou landscape area respectively.The four areas of Muchenggou are 600.05 hm~2,4118.77 hm~2,2541.91 hm~2 and 1713.43 hm~2respectively,accounting for 6.69%,45.90%,28.32%and 19.09%of Muchenggou area respectively.(3)The core landscape area of Jiajinshan(Xiaojin)National Forest Park in Sichuan Province is mainly planned in sensitive and low sensitive areas,with a total planning area of 2181.74 hm~2,accounting for 9.29%of the total forest park area.Among them,the planned area of Muerzhaigou core landscape area is 828.69 hm~2,and Muchenggou core landscape area is 1353.05 hm~2.General recreation areas are mainly distributed in low-sensitive areas,with a planned total area of 15338.43 hm~2,accounting for 65.29%of the total area of forest parks.The planned area of the general recreation area of Muerzhaigou is 10009.73 hm~2,and the planned area of the general recreation area of Muchenggou is 5328.70 hm~2.The management service area is mainly distributed in insensitive areas,with a planned total area of 1112.33 hm~2,accounting for 4.74%of the total area of forest parks.Among them,the area of Muerzhaigou management service area is 635.64 hm~2,and Muchenggou management service area is 476.69 hm~2.Eco-conservation areas mainly include highly sensitive areas,with a planned total area of4858.47 hm~2,accounting for 20.68%of the total area of forest parks.Among them,the planned area of Muerzhaigou ecological conservation area is 3005.74 hm~2,and the planned area of Muchenggou ecological conservation area is 1852.73 hm~2.