摘要
The tradeoffs and optimizations of ecosystem services are the key research fields of ecology and geography.It is necessary to maximize the overall benefit of timber production and carbon storage for forest ecological development in China.We selected the Huitong National Research Station of Forest Ecosystem as our study area,and used In VEST model to evaluate timber production and carbon storage quantitatively.The results showed that:(1)While timber production increased with harvesting intensity over the planning horizon,carbon storage decreased.There were tradeoffs between timber production and carbon storage according to the significant negative relationship.(2)While the overall benefit of timber production and carbon storage increased with harvesting intensity,the value of tradeoffs decreased.T1 and T2 scenarios,with harvesting intensity of 10%–20% every 10 years,are the optimum management regimes for the two ecosystem services to gain more benefit and less tradeoffs.(3)The current harvesting intensity in Huitong County was slightly higher than the optimum harvesting intensity.On practical dimension,these findings suggested that obvious objectives are needed to formulate the corresponding countermeasures of tradeoffs,in order to realize the improvement of ecosystem services and the optimization of ecosystem structures.
The tradeoffs and optimizations of ecosystem services are the key research fields of ecology and geography. It is necessary to maximize the overall benefit of timber production and carbon storage for forest ecological development in China. We selected the Huitong National Research Station of Forest Ecosystem as our study area, and used INVEST model to evaluate timber production and carbon storage quantitatively. The results showed that： （1） While timber production increased with harvesting intensity over the planning horizon, carbon storage decreased. There were tradeoffs between timber production and carbon storage according to the significant negative relationship. （2） While the overall benefit of timber pro- duction and carbon storage increased with harvesting intensity, the value of tradeoffs de- creased. T1 and T2 scenarios, with harvesting intensity of 10%-20% every 10 years, are the optimum management regimes for the two ecosystem services to gain more benefit and less tradeoffs. （3） The current harvesting intensity in Huitong County was slightly higher than the optimum harvesting intensity. On practical dimension, these findings suggested that obvious objectives are needed to formulate the corresponding countermeasures of tradeoffs, in order to realize the improvement of ecosystem services and the optimization of ecosystem structures.
基金
The National Basic Research Program of China(973 Program),No.2015CB452702
National Natural Science Foundation of China,No.41571098,No.41530749
Key Programs of Chinese Academy of Sciences,ZDRW-ZS-2016-6-4-4
Major Consulting Project of Strategic Development Institute,Chinese Academy of Sciences,No.Y02015003
China Clean Development Mechanism Fund Grant Program(Climate Change Risk and Countermeasures in Xinjiang Region)
