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Divergent responses of soil organic carbon to afforestation

文献类型：期刊论文

作者Hong, Songbai4; Yin, Guodong1,4; Piao, Shilong3,4; Dybzinski, Ray2; Cong, Nan9; Li, Xiangyi4; Wang, Kai4; Penuelas, Josep7,8; Zeng, Hui6; Chen, Anping5,10
刊名NATURE SUSTAINABILITY
出版日期2020-06-22
卷号3期号:9页码:694
ISSN号2398-9629
DOI10.1038/s41893-020-0557-y
英文摘要Forest planting is considered a natural climate solution, but effects on soil carbon are unclear. This study, in northern China, finds that planting forests increases carbon in soils poor in it and vice versa. Large-scale afforestation is regarded as an effective natural climate solution. However, afforestation-induced changes in soil organic C (SOC) are poorly quantified due to the paucity of large-scale sampling data. Here, we provide the first comprehensive assessment of the afforestation impact on SOC stocks with a pairwise comparative study of samples from 619 control-and-afforested plot pairs in northern China. We found context-dependent effects of afforestation on SOC: afforestation increases SOC density (SOCD) in C-poor soils but decreases SOCD in C-rich soils, especially in deeper soil. Thus, the fixed biomass/SOC ratio assumed in previous studies could overestimate the SOC enhancement by afforestation. By extrapolating the sampling data to the entire region, we estimate that afforestation increased SOC stocks in northern China by only 234.9 +/- 9.6 TgC over the last three decades. The study highlights the importance of including pre-afforestation soil properties in models of soil carbon dynamics and carbon sink projections.
WOS关键词LAND-USE CHANGE ; CHINA ; FOREST ; SEQUESTRATION ; STOCKS ; STORAGE ; IMPACT
资助项目National Key R&D Program of China[2017YFA0604702] ; Strategic Priority Research Program (A) of the Chinese Academy of Sciences[XDA20050101] ; National Natural Science Foundation of China[41988101]
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000542089900001
出版者NATURE PUBLISHING GROUP
资助机构National Key R&D Program of China ; Strategic Priority Research Program (A) of the Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/162344]  
专题拉萨站高原生态系统研究中心_外文论文
作者单位1.Beijing Normal Univ, Coll Water Sci, Beijing, Peoples R China
2.Loyola Univ Chicago, Inst Environm Sustainabil, Chicago, IL USA
3.Chinese Acad Sci, Ctr Excellence Tibetan Earth Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing, Peoples R China
4.Peking Univ, Coll Urban & Environm Sci, Sino French Inst Earth Syst Sci, Beijing, Peoples R China
5.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA
6.Peking Univ, Shenzhen Grad Sch, Shenzhen, Peoples R China
7.Global Ecol Unit CREAF CSIC UAB, Barcelona, Spain
8.CREAF, Barcelona, Spain
9.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
10.Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA
推荐引用方式
GB/T 7714		 Hong, Songbai,Yin, Guodong,Piao, Shilong,et al. Divergent responses of soil organic carbon to afforestation[J]. NATURE SUSTAINABILITY,2020,3(9):694.
APA Hong, Songbai.,Yin, Guodong.,Piao, Shilong.,Dybzinski, Ray.,Cong, Nan.,...&Chen, Anping.(2020).Divergent responses of soil organic carbon to afforestation.NATURE SUSTAINABILITY,3(9),694.
MLA Hong, Songbai,et al."Divergent responses of soil organic carbon to afforestation".NATURE SUSTAINABILITY 3.9(2020):694.

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来源：地理科学与资源研究所

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