A large carbon sink induced by the implementation of the largest afforestation program on Earth

作     者：Jiaojun Zhu Yirong Sun Xiao Zheng Kai Yang G.Geoff Wang Chaozong Xia Tao Sun Jinxin Zhang Jiaojun Zhu;Yirong Sun;Xiao Zheng;Kai Yang;G.Geoff Wang;Chaozong Xia;Tao Sun;Jinxin Zhang

作者机构：Qingyuan Forest CERNCAS Key Laboratory of Forest Ecology and ManagementInstitute of Applied EcologyChinese Academy of SciencesShenyang 110016China Key Laboratory of Ecology and Management of Non-Commercial ForestsShenyang 110016LiaoningChina Department of Forestry and Environmental ConservationClemson UniversityClemsonSC 29634-0317USA Academy of Forestry-Grassland Inventory and PlanningBeijing 100013China 

出 版 物：《Ecological Processes》 (生态过程（英文）)

年 卷 期：2023年第12卷第1期

页      面：598-607页

核心收录：

学科分类：07[理学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学] 

基　　金：supported by grants from National Key R&D Program of China(2020YFA0608100) CAS Key Research Program of Frontier Sciences(QYZDJ-SSW-DQC027) National Natural Science Foundation of China(31025007) the Knowledge Innovation Program of Chinese Academy of Sciences(KZCX1-YW-08-02) the Consultation Project supported by Divisions of the Chinese Academy of Sciences(2019-ZW09-A-032) 

主　　题：Three-North Afforestation Program Carbon sequestration Ecological restoration Carbon sequestration benefited from the ecological effects 

摘      要：Background Three-North Afforestation Program(TNAP)in China is the largest ecological restoration project on Earth(ongoing from 1978 to 2050),harboring a huge area of newly planted forests,which provides a wealth of goods and ecosystem services that benefit society at levels ranging from region to East *** project-induced carbon(C)sink has been expected to be large,but its size and location remain *** In this study,we investigated the changes in the C stocks of biomass,soil C and the C accumulation ben-efited from the ecological effects in the project areas from 1978 to 2017 within the Three-North regions(4.069×10^(6)km^(2)),and evaluated its project-induced C *** a combination of remote sensing images,field obser-vations and national forest inventory data,we estimated a total ecosystem sink of 47.06 Tg C per year(1 Tg=10^(12)g)increased by the TNAP ***,we first found that the C sink via the ecological effects of this project could contribute to a high proportion up to 15.94%,indicating a critical role of ecological effects in shaping the distribution of C stocks in the protective *** finding suggests that it is necessary to explicitly consider carbon sequestration benefited from the ecological effects when estimating C sink and parameterizing C models of the restoration projects in China and *** Our results update the estimates of C pools in the world’s largest ecological restoration project area,demonstrating that this project has substantially contributed to mitigating the climate change.