Divergent responses of soil organic carbon to afforestation

doi:10.1038/s41893-020-0557-y

	Divergent responses of soil organic carbon to afforestation
	Hong, Songbai 1; Yin, Guodong 1,2; Piao, Shilong 1,3; Dybzinski, Ray 4; Cong, Nan 5; Li, Xiangyi 1; Wang, Kai 1; Penuelas, Josep 6,7; Zeng, Hui 8; Chen, Anping 9,10
刊名	NATURE SUSTAINABILITY
	2020-06-22
页码	15
ISSN号	2398-9629
DOI	10.1038/s41893-020-0557-y
通讯作者	Piao, Shilong(slpiao@pku.edu.cn) ; Chen, Anping(anping.chen@colostate.edu)
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.
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关键词	LAND-USE CHANGE ; CHINA ; FOREST ; SEQUESTRATION ; STOCKS ; STORAGE ; IMPACT
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000542089900001
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
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162344]
专题	中国科学院地理科学与资源研究所
通讯作者	Piao, Shilong; Chen, Anping
作者单位	1.Peking Univ, Coll Urban & Environm Sci, Sino French Inst Earth Syst Sci, Beijing, Peoples R China 2.Beijing Normal Univ, Coll Water Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Tibetan Earth Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol, Beijing, Peoples R China 4.Loyola Univ Chicago, Inst Environm Sustainabil, Chicago, IL USA 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 6.CREAF, Barcelona, Spain 7.Global Ecol Unit CREAF CSIC UAB, Barcelona, Spain 8.Peking Univ, Shenzhen Grad Sch, Shenzhen, Peoples R China 9.Colorado State Univ, Dept Biol, Ft Collins, CO 80523 USA 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,2020:15.
APA	Hong, Songbai.,Yin, Guodong.,Piao, Shilong.,Dybzinski, Ray.,Cong, Nan.,...&Chen, Anping.(2020).Divergent responses of soil organic carbon to afforestation.NATURE SUSTAINABILITY,15.
MLA	Hong, Songbai,et al."Divergent responses of soil organic carbon to afforestation".NATURE SUSTAINABILITY (2020):15.