globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12277
论文题名:
The impacts of climate change and human activities on biogeochemical cycles on the Qinghai-Tibetan Plateau
作者: Chen H.; Zhu Q.; Peng C.; Wu N.; Wang Y.; Fang X.; Gao Y.; Zhu D.; Yang G.; Tian J.; Kang X.; Piao S.; Ouyang H.; Xiang W.; Luo Z.; Jiang H.; Song X.; Zhang Y.; Yu G.; Zhao X.; Gong P.; Yao T.; Wu J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期:10
起始页码: 2940
结束页码: 2955
语种: 英语
英文关键词: Carbon budget ; Ice retreat ; Intact ecosystems ; Land use change ; Permafrost
Scopus关键词: biogeochemical cycle ; carbon budget ; carbon dioxide ; climate change ; climate effect ; emission ; glacier retreat ; global warming ; human activity ; ice retreat ; land use change ; net primary production ; nitrous oxide ; permafrost ; soil respiration ; thawing ; China ; Qinghai-Xizang Plateau ; agriculture ; animal ; article ; carbon budget ; China ; climate change ; ecosystem ; human ; ice retreat ; intact ecosystems ; land use change ; permafrost ; plant ; carbon budget ; ice retreat ; intact ecosystems ; land use change ; permafrost ; Agriculture ; Animals ; China ; Climate Change ; Ecosystem ; Humans ; Plants ; Tibet
英文摘要: 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 °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 (CH4) emissions from wetlands and increased CH4 consumption of meadows, but might increase CH4 emissions from lakes. Warming-induced permafrost thawing and glaciers melting would also result in substantial emission of old carbon dioxide (CO2) and CH4. Nitrous oxide (N2O) 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. © 2013 John Wiley & Sons Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62314
Appears in Collections:影响、适应和脆弱性

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作者单位: Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China; Laboratory for Ecological Forecasting and Global Change, College of Forestry, Northwest Agriculture and Forest University, Yangling, 712100, China; Zoige Peatland and Global Change Research Station, Chinese Academy of Sciences, Hongyuan, 624400, China; Department of Biology Science, Institute of Environment Sciences, University of Quebec at Montreal, Montreal, C3H 3P8, Canada; International Centre for Integrated Mountain Development, GPO Box 3226, Kathmandu, Nepal; Graduate University of Chinese Academy of Sciences, Beijing, 100039, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China; Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China; Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100085, China; College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China; Institute of Geographic Science and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; Research Section of Forest Ecology, Central South University of Forestry and Technology, Changsha, 410004, China; Zhejiang Provincial Key Laboratory of Carbon Cycling and Carbon Sequestration in Forest Ecosystems, Zhejiang Agriculture and Forestry University, Lin'an, 311300, China; Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China; Centre for Earth System Science, Tsinghua University, Beijing, 100084, China; Sustainable Resource Management, Memorial University of Newfoundland, Corner Brook, A2H 5G4, Canada

Recommended Citation:
Chen H.,Zhu Q.,Peng C.,et al. The impacts of climate change and human activities on biogeochemical cycles on the Qinghai-Tibetan Plateau[J]. Global Change Biology,2013-01-01,19(10)
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