Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting
	Gao, Shenghua 1; Chen, Jiquan 2,3; Tang, Yuxi 4; Xie, Jing 5; Zhang, Rui 6; Tang, Jie 4; Zhang, Xudong 1
刊名	FOREST ECOLOGY AND MANAGEMENT
	2015-12-01
卷号	357 页码:206-219
关键词	GHG flux Carbon balance Eddy covariance Poplar plantation Harvest effect Forest regeneration
英文摘要	Poplar plantations have widely spread around the world due to its high productivity and adaptability. Clear-cutting is the primary harvesting method for poplar plantation management in southern China. However, the effect of harvesting on ecosystem carbon fluxes limits our ability to estimate its carbon sequestration. A consecutive, three-year observation on ecosystem CO2 and CH4 flux (F-CO2 and F-CH4) of a Populus dettoides plantation on the floodplain of Yangtze River was made prior and post to the clear-cutting using an eddy-covariance system. We found that clear-cutting turned the ecosystem from a strong carbon sink to a mediate carbon source only in several months, July to next January, after the harvest. The ecosystem turned to a net carbon sink at the beginning of the first growing season following clear-cutting due to the large productivity of understory vegetation in this region. The annual carbon budget was -424.3 +/- 52.5 g-C m(-2) (95% confidence interval) in the harvesting year, with -53.6 +/- 22.8 g-C m(-2) the first year and -290.7 +/- 34.2 g-C m(-2) the second year after clear-cutting. Clear-cutting turned the ecosystem from a net CH4 sink to a net CH4 source after the third month, but during the three years the CH4 emission only balanced out a very small portion (0.3%) of F-CO2. In non-inundation periods, F-CH4 varied from -0.01 to 0.24 mmol m(-2) d(-1), with a mean (SD) of 0.11 +/- 0.08 mmol m(-2) d(-1), while it ranged from 0.33 to 4.39 mmol m(-2) d(-1) during inundation, with a mean (+/- SD) of 2.17 +/- 1.16 mmol m(-2) d(-1). Daily and weekly F-CH4 during non-inundation period were highly correlated with ground water table, soil moisture, and friction velocity, while F-CH4 during inundation depended on inundation depth. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Forestry
研究领域[WOS]	Forestry
关键词[WOS]	SLASH PINE PLANTATIONS ; SOIL METHANE FLUXES ; WATER-TABLE LEVELS ; TEMPERATE FORESTS ; NORTHEAST CHINA ; NITROUS-OXIDE ; MISSING DATA ; EMISSIONS ; DIOXIDE ; DYNAMICS
收录类别	SCI
语种	英语
WOS记录号	WOS:000364892400021
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24664]
专题	生态环境研究中心_城市与区域生态国家重点实验室
作者单位	1.Chinese Acad Forestry, Res Inst Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China 2.Michigan State Univ, Ctr Global Change & Earth Observat CGCEO, E Lansing, MI 48823 USA 3.Michigan State Univ, Dept Geog, E Lansing, MI 48823 USA 4.Hunan Acad Forestry, Changsha 410004, Hunan, Peoples R China 5.Beijing Forestry Univ, Beijing 100083, Peoples R China 6.Chinese Acad Sci, State Key Lab Urban & Reg Ecol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Gao, Shenghua,Chen, Jiquan,Tang, Yuxi,et al. Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting[J]. FOREST ECOLOGY AND MANAGEMENT,2015,357:206-219.
APA	Gao, Shenghua.,Chen, Jiquan.,Tang, Yuxi.,Xie, Jing.,Zhang, Rui.,...&Zhang, Xudong.(2015).Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting.FOREST ECOLOGY AND MANAGEMENT,357,206-219.
MLA	Gao, Shenghua,et al."Ecosystem carbon (CO2 and CH4) fluxes of a Populus dettoides plantation in subtropical China during and post clear-cutting".FOREST ECOLOGY AND MANAGEMENT 357(2015):206-219.