社会最优视角下南方集体林区营林增汇的生态补偿水平研究OACHSSCD

Taking Chinese fir plantations in Zhejiang,Fujian,and Jiangxi provinces,key regions of collective forest tenure reform in southern China,as cases,this study clarified the ecological compensation level for enhancing carbon sequestration through silvicultural practices in southern collective forest areas under the socially optimal goal via the extended Faustmann-Hartman optimal rotation model.The results show that under the baseline scenario,the shift of forest farmers'silvicultural goals from individual optimum to social optimum can achieve an additional carbon sequestration of 3.9 t/hm2.Taking the realization of social optimum as the silvicultural goal,it is necessary to provide forest farmers with a minimum annual ecological compensation of 593.5 CNY/hm2,and a significant linear relationship is observed between carbon storage from forest management and ecological compensation levels.Sensitivity analysis shows that timber prices,carbon sink prices,the government's carbon neutrality time preferences,and site conditions are the key factors affecting the formulation of ecological compensation levels.Specifically,increasing timber prices can help accelerate the realization of the social optimum while raising carbon sink prices can reduce the government's compensation burden.Attention should be given to the synergy between achieving socially optimal goals and fostering forest farmers'silvicultural incentives to promote the steady increase of timber and carbon sink prices.Meanwhile,compensation standards should be classified based primarily on site conditions,and dynamic ecological compensation levels should be designed in response to shifts in the government's time preference for carbon neutrality.These measures enable silvicultural carbon-enhancing practices to satisfy the dual demands of social-ecological optimality and forest farmers'individual interests.