Study On Monitoring Network Distribution Of Forest Ecological Benefit In The Three Gorges Reservoir Area

With the improvement of the quality of living environment,the deterioration of the natural ecological environment,the protection of the ecological environment has attracted wide attention of governments and the public in various countries,It is very important to carry out the monitoring of the ecological benefits of forest ecosystems for protecting,managing and evaluating the ecological environment.At the same time,with social economy growing rapidly,China’s forestry has shifted from the wood industry to ecological construction,also pursues the long-term sustainable development of forest ecological benefits.The inventory of continuous inventory of forest resources which as an important government act included forest area,accumulation,coverage,and forest health quality.Through forest resources inventory results,we can clearly understand the status quo of the national forest resources and change dynamics and forecast the development trend of forest resources.Therefore,in order to satisfy the inventory and continuous observation of the ecological elements of the forest ecosystem,fully understand the other ecological benefits provided by the forest ecosystem in the Three Gorges reservoir area,and provide data support for the evaluation of the ecological benefits of the forest ecosystem in the Three Gorges Reservoir Area,Long-term monitoring of ecological benefits is an indispensable part for forest ecosystems.The research content of this article mainly includes: Construction of Monitoring Indicator System for Ecological Benefits of Forest Ecosystem,The layout of forest ecosystem eco-efficiency monitoring network system,A total of 2 first-level indicators 9 secondary indicators,19 tertiary indicators,integrated natural zoning,Spatial Analysis,Cluster analysis three methods are chosen to complete the monitoring site layout.The main results are as follows:(1)Construction of Monitoring Indicators for Ecological Benefits of Forest Ecosystem in the Three Gorges Reservoir AreaThis article focuses on the selection of monitoring indicators for five major service functions,such as water conservation function,conservation of soil function,water purification function,carbon fixation and oxygen release function,and biodiversity function.A total of six major categories of forest ecosystem components have been selected,includes 45 monitoring indicator factors which are divided into: 16 vegetation index factors of forest vegetation,hydrological climate 13 monitoring indicators,11 monitoring indicators of soil,human disturbance and terrain 5 monitoring index factors,according to the constituent elements of the forest ecosystem.These indicator factors form a monitoring indicator system for ecological benefits.(2)According to the establishment of the 18 indicators of comprehensive natural division of the forest ecosystem in the Three Gorges Reservoir Area.Cluster analysis was used to divide into 10 ecological areas in the Three Gorges reservoir area.Combined ecological area construction needs,a total of 5 central stations and 5 auxiliary stations were set up.Five of the central monitoring stations include two established forest ecological monitoring stations and three proposed forest ecological monitoring stations.The two established forest ecological monitoring stations are:Zigui Forest Ecological Monitoring Center Station,Wanzhou Forest Ecological Monitoring Center Station;The three proposed plans are: Jiangjin Forest Ecological Monitoring Center Station,Wulong Forest Ecological Monitoring Center Station,Wuxi Forest Ecological Monitoring Center Station;Five forest eco-efficiency monitoring auxiliary stations are planned for this layout plan: the ecological monitoring stations in northern Fujian,Fengdu,Fengjie,Xingshan and Badong are respectively.The monitoring center station and the auxiliary station together form the forest ecological benefit monitoring network in the Three Gorges reservoir area.Seen from the layout density,the head of the Three Gorges reservoir area is larger than the middle and the end of the reservoir,because of the forest coverage rate is the highest in the Three Gorges reservoir area,and there are more human activities in the middle and the end of the reservoir,especially in the urban area of the Universe.relative to the head of the reservoir,The primary vegetation damage in there is more serious than where in the head of the Three Gorges reservoir.The ecological functional areas of the Three Gorges Reservoir area are mainly concentrated in the reservoir.