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The impacts of climate change and human activities on biogeochemical cycles on the Qinghai-Tibetan Plateau.

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WOS被引频次:122
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成果类型:
期刊论文
作者:
Chen, Huai;Zhu, Qiuan;Peng, Changhui;Wu, Ning;Wang, Yanfen;Fang, Xiuqing;Gao, Yongheng;Zhu, Dan;Yang, Gang;Tian, Jianqing;Kang, Xiaoming;Piao, Shilong;Ouyang, Hua;Xiang, Wenhua;Luo, Zhibin;Jiang, Hong;Song, Xingzhang;Zhang, Yao;Yu, Guirui;Zhao, Xinquan;Gong, Peng;Yao, Tandong;Wu, Jianghua
通讯作者:
Peng, CH
作者机构:
[Luo, Zhibin; Yang, Gang; Zhang, Yao; Zhu, Qiuan; Chen, Huai; Peng, Changhui] Northwest Agr & Forest Univ, Lab Ecol Forecasting & Global Change, Coll Forestry, Yangling 712100, Peoples R China.
[Piao, Shilong; Yao, Tandong] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China.
[Piao, Shilong] Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China.
[Yang, Gang; Wu, Ning; Zhu, Qiuan; Chen, Huai; Tian, Jianqing; Gao, Yongheng; Wang, Yanfen; Zhu, Dan] Chinese Acad Sci, Zoige Peatland & Global Change Res Stn, Hongyuan 624400, Peoples R China.
[Wu, Ning; Chen, Huai; Zhao, Xinquan; Zhu, Dan] Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China.
通讯机构:
[Peng, CH] Northwest Agr & Forest Univ, Lab Ecol Forecasting & Global Change, Coll Forestry, Yangling 712100, Peoples R China.
语种:
英文
关键词:
carbon budget;ice retreat;intact ecosystems;land use change;permafrost
期刊:
GLOBAL CHANGE BIOLOGY
ISSN:
1354-1013
年:
2013
卷:
19
期:
10
页码:
2940-2955
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:000323844200003;PMID:23744573
基金类别:
100 Talents Program of The Chinese Academy of Sciences; Program for New Century Excellent Talents in University [NCET-12-0477]; National Natural Science Foundation of China [31100348]; Natural Sciences and Engineering Research Council of Canada (NSERC); China's QianRen program
机构署名:
本校为其他机构
院系归属:
林学院
摘要:
With a pace of about twice the observed rate of global warming, the temperature on the Qinghai-Tibetan Plateau (Earth's 'third pole') has increased by 0.2 degrees C per decade over the past 50 years, which results in significant permafrost thawing and glacier retreat. Our review suggested that warming enhanced net primary production and soil respiration, decreased methane (CH(4)) emissions from wetlands and increased CH(4) consumption of meadows, but might increase CH(4) emissions from lakes. Warming-induced permafrost thawing and glaciers melting would also result in substantial emission of old carbon dioxide (CO(2)) and CH(4). Nitrous oxide (N(2)O) emission was not stimulated by warming itself, but might be slightly enhanced by wetting. However, there are many uncertainties in such biogeochemical cycles under climate change. Human activities (e.g. grazing, land cover changes) further modified the biogeochemical cycles and amplified such uncertainties on the plateau. If the projected warming and wetting continues, the future biogeochemical cycles will be more complicated. So facing research in this field is an ongoing challenge of integrating field observations with process-based ecosystem models to predict the impacts of future climate change and human activities at various temporal and spatial scales. To reduce the uncertainties and to improve the precision of the predictions of the impacts of climate change and human activities on biogeochemical cycles, efforts should focus on conducting more field observation studies, integrating data within improved models, and developing new knowledge about coupling among carbon, nitrogen, and phosphorus biogeochemical cycles as well as about the role of microbes in these cycles.
参考文献:
Lu HY, 2008, BOREAS, V37, P254, DOI 10.1111/j.1502-3885.2007.00019.x
Li JJ, 1999, CHINESE SCI BULL, V44, P2117
Liu XD, 2000, INT J CLIMATOL, V20, P1729, DOI 10.1002/1097-0088(20001130)20:14<1729::AID-JOC556>3.0.CO
2-Y
Wang SP, 2012, ECOLOGY, V93, P2365, DOI 10.1890/11-1408.1

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