Ecosystem carbon stock across a chronosequence of spruce plantations established on cutovers of a high-elevation region

doi:10.1007/s11368-016-1415-4

	Ecosystem carbon stock across a chronosequence of spruce plantations established on cutovers of a high-elevation region
	Pang, XY; Huang, JS; Zhao, QX; Feng, DF; Bao, WK; Tian, GL; Bao, WK (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Sichuan, Peoples R China.
刊名	JOURNAL OF SOILS AND SEDIMENTS
	2017
卷号	17 期号:9 页码:2239-2249
关键词	Chronosequence Carbon Sequestration Picea Asperata Plantation Reforestation The Eastern Tibetan Plateau
DOI	10.1007/s11368-016-1415-4
产权排序	1
文献子类	Article; Proceedings Paper
英文摘要	OCT 24-28, 2015; This study quantified the above- and belowground carbon (C) stocks across a chronosequence of spruce (Picea asperata) plantations established on cutovers and explored the turning point after which the increase in biomass C slowed or biomass C decreased for guiding forest management. We assessed above- and belowground plant biomass stocks at 11 sites in three regions, representing 12- to 46-year-old spruce plantations established on clear-cut areas in the eastern Tibetan Plateau, China. Biomass and C stocks of trees, understory vegetation, and forest floor litter were determined from plot-level inventories and destructive sampling. Fine root (< 2 mm) biomass and mineral soil organic C (SOC) stock were estimated from soil cores. Tree biomass was quantified using allometric equations based on diameter at breast height (DBH) and height (H). Plant biomass C stocks in spruce plantations rapidly increased from 12 to 20 years at a rate of 7.8 Mg C ha(-1) year(-1), but decreased from 25 to 46 years at a rate of 0.79 Mg C ha(-1) year(-1). SOC stocks in spruce plantations gradually decreased from 12 to 46 years at a rate of 4.4 Mg C ha(-1) year(-1). Total C stock in the ecosystem remained unchanged for the first 20 years after the planting of spruce on cutovers, because the buildup of C stock in spruce biomass during the first 20 years was offset by the decrease in SOC. From 21 to 46 years after the reforestation, ecosystem C stock even decreased at a rate of 5.2 Mg C ha(-1) year(-1). The contribution of the understory vegetation, forest floor litter, and fine root to ecosystem C stock was low (< 5.0 %) in the spruce plantations. Ecosystem C stock in the spruce forest established on the cutover in the eastern Tibetan Plateau was related to stand age. During the first 20 years, this ecosystem was C neutral. However, aged (20-46 years) spruce plantation ecosystem can be a C source if no management was implemented to revitalize tree growth, promote understory vegetation, and enhance SOC accumulation.
学科主题	Environmental Sciences & Ecology ; Agriculture
项目编号	中国科学院山地生态恢复与生物资源利用重点实验室
语种	英语
资助机构	We thank the subject editor, two anonymous reviewers, and editor-in-chief for their valuable comments and suggestions on the manuscript of the paper. This study was supported by the National Natural Science Foundation of China (grant no. 31270492), the Strategic Priority Research Program of the CAS (grant no. XDA05070306), and the National Science & Technology Pillar Program in 12th Five-year Plan of China (grant no. 2011BAC09B04-02). We are grateful to the Markang Forestry Bureau, Miyaluo Forestry Bureau, and Jinchuan Forestry Bureau, for the help and support in their field survey. ; National Natural Science Foundation of China [31270492] ; We thank the subject editor, two anonymous reviewers, and editor-in-chief for their valuable comments and suggestions on the manuscript of the paper. This study was supported by the National Natural Science Foundation of China (grant no. 31270492), the Strategic Priority Research Program of the CAS (grant no. XDA05070306), and the National Science & Technology Pillar Program in 12th Five-year Plan of China (grant no. 2011BAC09B04-02). We are grateful to the Markang Forestry Bureau, Miyaluo Forestry Bureau, and Jinchuan Forestry Bureau, for the help and support in their field survey. ; National Natural Science Foundation of China [31270492] ; Strategic Priority Research Program of the CAS [XDA05070306] ; Strategic Priority Research Program of the CAS [XDA05070306] ; National Science & Technology Pillar Program in 12th Five-year Plan of China [2011BAC09B04-02] ; National Science & Technology Pillar Program in 12th Five-year Plan of China [2011BAC09B04-02] ; We thank the subject editor, two anonymous reviewers, and editor-in-chief for their valuable comments and suggestions on the manuscript of the paper. This study was supported by the National Natural Science Foundation of China (grant no. 31270492), the Strategic Priority Research Program of the CAS (grant no. XDA05070306), and the National Science & Technology Pillar Program in 12th Five-year Plan of China (grant no. 2011BAC09B04-02). We are grateful to the Markang Forestry Bureau, Miyaluo Forestry Bureau, and Jinchuan Forestry Bureau, for the help and support in their field survey. ; National Natural Science Foundation of China [31270492] ; We thank the subject editor, two anonymous reviewers, and editor-in-chief for their valuable comments and suggestions on the manuscript of the paper. This study was supported by the National Natural Science Foundation of China (grant no. 31270492), the Strategic Priority Research Program of the CAS (grant no. XDA05070306), and the National Science & Technology Pillar Program in 12th Five-year Plan of China (grant no. 2011BAC09B04-02). We are grateful to the Markang Forestry Bureau, Miyaluo Forestry Bureau, and Jinchuan Forestry Bureau, for the help and support in their field survey. ; National Natural Science Foundation of China [31270492] ; Strategic Priority Research Program of the CAS [XDA05070306] ; Strategic Priority Research Program of the CAS [XDA05070306] ; National Science & Technology Pillar Program in 12th Five-year Plan of China [2011BAC09B04-02] ; National Science & Technology Pillar Program in 12th Five-year Plan of China [2011BAC09B04-02]
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/29108]
专题	成都生物研究所_生态研究
通讯作者	Pang, XY; Bao, WK (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Sichuan, Peoples R China.
推荐引用方式 GB/T 7714	Pang, XY,Huang, JS,Zhao, QX,et al. Ecosystem carbon stock across a chronosequence of spruce plantations established on cutovers of a high-elevation region[J]. JOURNAL OF SOILS AND SEDIMENTS,2017,17(9):2239-2249.
APA	Pang, XY.,Huang, JS.,Zhao, QX.,Feng, DF.,Bao, WK.,...&Bao, WK .(2017).Ecosystem carbon stock across a chronosequence of spruce plantations established on cutovers of a high-elevation region.JOURNAL OF SOILS AND SEDIMENTS,17(9),2239-2249.
MLA	Pang, XY,et al."Ecosystem carbon stock across a chronosequence of spruce plantations established on cutovers of a high-elevation region".JOURNAL OF SOILS AND SEDIMENTS 17.9(2017):2239-2249.