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FOREST RESOURCES WANAGEMENT ›› 2023›› Issue (3): 21-28.doi: 10.13466/j.cnki.lyzygl.2023.03.004

• Ecological Forum • Previous Articles     Next Articles

Analysis of the Forest Ecosystem Services and Driving Forces in Natural Forest Protection Project Area in Yunnan Province

WANG Yihui1,2,3(), NIU Xiang1,2,3(), WANG Bing1,2,3, SONG Qingfeng1,2,3   

  1. 1. Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing 100091,China
    2. Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Beijing 100091,China
    3. Dagangshan National Key Field Observation and Research Station for Forest Ecosystem,Xinyu,Jiangxi 336606,China
  • Received:2023-03-28 Revised:2023-05-30 Online:2023-06-28 Published:2023-08-09

Abstract:

Based on the second-class survey data and ecological connection data of forest resources about Natural Forest Protection Project area in Yunnan Province in 1998 and 2020,and according to the China national standard of "Specification for Evaluation of Forest Ecosystem Service Functions",this study applies the distributed calculation method to evaluate the service functions of forest ecosystem,including soil conservation,nutrient accumulationn,water conservation,carbon sequestration and oxygen release,purification of atmospheric environment and biodiversity conservation in the Natural Forest Protection Project area in Yunnan Province,and explores the formation and growth mechanism of its ecological benefits.The study aims to clearly demonstrate the remarkable results of the Natural Forest Protection Project in Yunnan Province,to provide scientific basis and technical support for different regions to carry out forestry ecological construction projects scientifically,to adjust the direction of forestry development in time,to promote subsequent protection and development of natural forest resources,and to promote further protection and development of natural forest resources.The results show that:(1) From the perspective of time scale,the quality and value of forest ecosystem service functions in Natural Forest Protection Project area in Yunnan Province have shown an upward trend in the past 20 years.(2) In 2020,the total value of forest ecosystem services in Natural Forest Protection Project area in Yunnan Province was 917.189 billion yuan/a,of which the functional value of biodiversity conservation was 343.216 billion yuan/a,the functional value of water conservation was 231.108 billion yuan/a,and the functional value of purifying the atmospheric environment was 114.494 billion yuan/a,indicating that the forest ecosystem of Natural Forest Protection Project area in Yunnan Province plays an important role as the "green gene pool","green water reservoir" and "environmental purification oxygen bar bank".(3) From 1998 to 2020,the forest ecosystem service work of Natural Forest Protection Project in Yunnan Province was inseparable from the forest resource endowment and policy guidance,and under the combined influence of both mentioned above,the physical quantity and value of various forest ecosystem service functions showed an increase trend of different degrees.

Key words: Yunnan Province, natural forest protection project, forest ecosystem, evaluation, driving force

CLC Number: