Effects of climate and forest age on the ecosystem carbon exchange of afforestation

doi:10.1007/s11676-019-00946-5

	Effects of climate and forest age on the ecosystem carbon exchange of afforestation
	Chen, Zhi 1,2,3; Yu, Guirui 1,2,3; Wang, Qiufeng 1,2,3
刊名	JOURNAL OF FORESTRY RESEARCH
	2020-04-01
卷号	31 期号:2 页码:365-374
关键词	Afforestation Carbon sequestration Eddy covariance Climate Age
ISSN号	1007-662X
DOI	10.1007/s11676-019-00946-5
通讯作者	Chen, Zhi(chenz@igsnrr.ac.cn) ; Yu, Guirui(yugr@igsnrr.ac.cn)
英文摘要	Afforestation is believed to be an effective practice to reduce global warming by sequestering large amounts of carbon in plant biomass and soil. However, the factors that determine the rate of carbon sequestration with afforestation are still poorly understood. We analyzed ecosystem carbon exchange after afforestation based on eddy covariance measurements with the aim to identify factors responsible for the rate of carbon exchange following afforestation. The results indicated that afforestation in the tropical/subtropical and temperate climate zones had greater capacities for carbon sequestration than those in boreal zones. Net ecosystem production (NEP), gross primary production (GPP) and ecosystem respiration (RE) varied greatly with age groups over time. Specifically, NEP was initially less than zero in the < 10 year group and then increased to its peak in the 10-20 year group. Afforestation of varied previous land use types and planting of diverse tree species did not result in different carbon fluxes. The general linear model showed that climate zone and age of afforestation were the dominant factors influencing carbon sequestration. These factors jointly controlled 51%, 61% and 63% of the variation in NEP, GPP and RE, respectively. Compared to the strong regulation of climate on GPP and RE, NEP showed greater sensitivity to the age of afforestation. These results increase our understanding of the variation in ecosystem carbon exchange of afforestation and suggest that afforestation in subtropical and temperate areas after 20 years would yield greater carbon sink benefits than would afforestation of boreal regions.
资助项目	National Natural Science Foundation of China[31600347] ; National Natural Science Foundation of China[41501381] ; National Key Research and Development Program of China[2016YFA0600103] ; International Partnership Program of Chinese Academy of Sciences[121311KYSB20170004]
WOS关键词	SOIL CARBON ; PINE PLANTATION ; SEQUESTRATION ; TEMPERATE ; DIOXIDE ; FLUXES ; REFORESTATION ; ACCUMULATION ; RESPIRATION ; PATTERNS
WOS研究方向	Forestry
语种	英语
出版者	NORTHEAST FORESTRY UNIV
WOS记录号	WOS:000518814700003
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; International Partnership Program of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/133134]
专题	中国科学院地理科学与资源研究所
通讯作者	Chen, Zhi; Yu, Guirui
作者单位	1.Chinese Acad Sci, Synth Res Ctr Chinese Ecosyst Res Network, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zhi,Yu, Guirui,Wang, Qiufeng. Effects of climate and forest age on the ecosystem carbon exchange of afforestation[J]. JOURNAL OF FORESTRY RESEARCH,2020,31(2):365-374.
APA	Chen, Zhi,Yu, Guirui,&Wang, Qiufeng.(2020).Effects of climate and forest age on the ecosystem carbon exchange of afforestation.JOURNAL OF FORESTRY RESEARCH,31(2),365-374.
MLA	Chen, Zhi,et al."Effects of climate and forest age on the ecosystem carbon exchange of afforestation".JOURNAL OF FORESTRY RESEARCH 31.2(2020):365-374.