Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests

doi:10.1007/s10021-020-00596-3

	Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests
	Wang, Zhi-Ping ; Li, Huan-Long ; Wu, Hong-Hui ; Han, Shi-Jie ; Huang, Jian-Hui; Zhang, Xi-Mei ; Han, Xing-Guo
	2021
发表期刊	ECOSYSTEMS
ISSN	1432-9840
卷号	24 期号:6 页码:1485-1499
摘要	The stems of living trees in upland forests might contribute to the global methane (CH4) source, but the contribution is poorly understood. We investigated CH4 concentration in the heartwood of living trees in dominant upland forests using field campaign and subsequently evaluated the importance of stem CH4 emission in the context of the global total. We found that only 0%, 9.8%, and 1.8% of stems of living trees had substantial CH4 concentration in heartwood of >= 10,000 mu L L-1 in the boreal, temperate, and tropical and subtropical upland forests investigated, respectively. CH4 concentration in heartwood depended mainly upon tree species and subsequently soil moisture. Relationships fitted indicate that CH4 concentration followed a power function with respect to water content in heartwood, whereas nitrous oxide (N2O) or carbon dioxide (CO2) concentration linearly increased with water content in heartwood. Stem CH4 emission was estimated at approximately 0.2-2 Tg yr(-1) globally, corresponding to less than 0.4% of the global total including all natural plus anthropogenic sources. Water content in heartwood is positively associated with soil water content. Soil water content rarely exceeds 40% v/v in upland forests, indicating stem CH4 emission occurs mainly in the areas of low-lying upland forests with occasionally moist soils. More attentions should be paid on low-lying upland forests and forested wetlands in future when stem CH4 emission needs to be estimated in all forests. Graphic abstract
关键词	Tree Species Heartwood Soil Moisture Field Investigation Extrapolating Uncertainty
学科领域	Ecology
DOI	10.1007/s10021-020-00596-3
收录类别	SCI
语种	英语
WOS关键词	BUDGET
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000616066600001
出版者	SPRINGER
文献子类	Article
出版地	NEW YORK
EISSN	1435-0629
资助机构	National Key Research and Development Program of China [2016YFA0600803] ; National Natural Science Foundation of China [31370493, 41930643]
作者邮箱	wangzp5@ibcas.ac.cn ; zhangximei@caas.cn
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/26343
专题	植被与环境变化国家重点实验室
作者单位	1.[Wang, Zhi-Ping 2.Li, Huan-Long 3.Huang, Jian-Hui 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Nanxincun 20, Beijing 100093, Peoples R China 5.[Li, Huan-Long 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China 8.Henan Univ, Sch Life Sci, Kaifeng 475004, Henan, Peoples R China 9.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Key Lab Dryland Agr, MOA, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhi-Ping,Li, Huan-Long,Wu, Hong-Hui,et al. Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests[J]. ECOSYSTEMS,2021,24(6):1485-1499.
APA	Wang, Zhi-Ping.,Li, Huan-Long.,Wu, Hong-Hui.,Han, Shi-Jie.,Huang, Jian-Hui.,...&Han, Xing-Guo.(2021).Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests.ECOSYSTEMS,24(6),1485-1499.
MLA	Wang, Zhi-Ping,et al."Methane Concentration in the Heartwood of Living Trees and Estimated Methane Emission on Stems in Upland Forests".ECOSYSTEMS 24.6(2021):1485-1499.

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