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Methane emissions from rice paddies natural wetlands, lakes in China: synthesis new estimate

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WOS被引频次:96
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成果类型:
期刊论文
作者:
Chen, Huai*;Zhu, Qiu'an;Peng, Changhui;Wu, Ning;Wang, Yanfen;Fang, Xiuqin;Jiang, Hong;Xiang, Wenhua;Chang, Jie;Deng, Xiangwen;Yu, Guirui
通讯作者:
Chen, Huai
作者机构:
[Chen, Huai; Zhu, Qiu'an; Peng, Changhui] NW A&F Univ, Lab Ecol Forecasting & Global Change, Yangling 712100, Peoples R China.
[Chen, Huai; Wu, Ning] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China.
[Wang, Yanfen] Chinese Acad Sci, Grad Univ, Coll Life Sci, Beijing 100049, Peoples R China.
[Xiang, Wenhua; Deng, Xiangwen] Cent S Univ Forestry & Technol, Ecol Res Sect, Changsha 410004, Hunan, Peoples R China.
[Jiang, Hong] Nanjing Univ, Dept Geog Sci, Nanjing 210093, Jiangsu, Peoples R China.
通讯机构:
[Zhu, Qiu'an] NW A&F Univ, Lab Ecol Forecasting & Global Change, Yangling 712100, Peoples R China.
语种:
英文
关键词:
agriculture;anthropogenic activity;CH4 budget;climate change;Qinghai-Tibetan Plateau
期刊:
Global change biology
ISSN:
1354-1013
年:
2013
卷:
19
期:
1
页码:
19-32
文献类别:
WOS:Review
所属学科:
ESI学科类别:环境科学/生态学;WOS学科类别:Biodiversity Conservation;Ecology;Environmental Sciences
入藏号:
WOS:000312155100003;PMID:23504718
基金类别:
National Natural Science Foundation of China [31100348]; Natural Sciences and Engineering Research Council of Canada (NSERC); China QianRen program
机构署名:
本校为其他机构
摘要:
Sources of methane (CH4 ) become highly variable for countries undergoing a heightened period of development due to both human activity and climate change. An urgent need therefore exists to budget key sources of CH4 , such as wetlands (rice paddies and natural wetlands) and lakes (including reservoirs and ponds), which are sensitive to these changes. For this study, references in relation to CH4 emissions from rice paddies, natural wetlands, and lakes in China were first reviewed and then reestimated based on the review itself. Total emissions from the three CH4 sources were 11.25 Tg CH4 yr(-1) (ranging from 7.98 to 15.16 Tg CH4 yr(-1) ). Among the emissions, 8.11 Tg CH4 yr(-1) (ranging from 5.20 to 11.36 Tg CH4 yr(-1) ) derived from rice paddies, 2.69 Tg CH4 yr(-1) (ranging from 2.46 to 3.20 Tg CH4 yr(-1) ) from natural wetlands, and 0.46 Tg CH4 yr(-1) (ranging from 0.33 to 0.59 Tg CH4 yr(-1) ) from lakes (including reservoirs and ponds). Plentiful water and warm conditions, as well as its large rice paddy area make rice paddies in southeastern China the greatest overall source of CH4 , accounting for approximately 55% of total paddy emissions. Natural wetland estimates were slightly higher than the other estimates owing to the higher CH4 emissions recorded within Qinghai-Tibetan Plateau peatlands. Total CH4 emissions from lakes were estimated for the first time by this study, with three quarters from the littoral zone and one quarter from lake surfaces. Rice paddies, natural wetlands, and lakes are not constant sources of CH4 , but decreasing ones influenced by anthropogenic activity and climate change. A new progress-based model used in conjunction with more observations through model-data fusion approach could help obtain better estimates and insights with regard to CH4 emissions deriving from wetlands and lakes in China.
参考文献:
Joyce J, 2003, ENVIRON ENG GEOSCI, V9, P167, DOI 10.2113/9.2.167
Yan XY, 2003, J GEOPHYS RES-ATMOS, V108, DOI 10.1029/2002JD003182
Hirota M, 2004, SOIL BIOL BIOCHEM, V36, P737, DOI 10.1016/j.soilbio.2003.12.009
Zheng XH, 2006, GLOBAL CHANGE BIOL, V12, P1717, DOI 10.1111/j.1365-2486.2006.01199.x
Cai ZC, 2001, BIOGEOCHEMISTRY, V56, P75, DOI 10.1023/A:1011940730288

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