| DOI: | 10.1002/grl.50352
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| 论文题名: | Climate impacts of a large-scale biofuels expansion |
| 作者: | Hallgren W.; Schlosser C.A.; Monier E.; Kicklighter D.; Sokolov A.; Melillo J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9150
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| EISSN: | 1944-8881
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| 出版年: | 2013
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| 卷: | 40, 期:8 | | 起始页码: | 1624
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| 结束页码: | 1630
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| 语种: | 英语
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| 英文关键词: | biofuels
; climate impacts
; Land use
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| Scopus关键词: | Climate impacts
; Global mean surface temperature
; Integrated assessment models
; Land-use strategies
; Regional impacts
; Second generation
; Surface temperatures
; Terrestrial biogeochemistries
; Atmospheric temperature
; Biofuels
; Biogeochemistry
; Earth (planet)
; Economics
; Forestry
; Greenhouse gases
; Land use
; Surface properties
; Climate models
; bioenergy
; biofuel
; biogeochemical cycle
; climate effect
; energy flux
; global climate
; land use planning
; numerical model
; regional climate
; surface temperature
; twenty first century
; Biochemistry
; Climates
; Economic Analysis
; Forestry
; Forests
; Fuels
; Geochemistry
; Greenhouse Gases
; Land Use
; Surface Properties
; Amazon Basin
; Congo Basin
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| 英文摘要: | A global biofuels program will potentially lead to intense pressures on land supply and cause widespread transformations in land use. These transformations can alter the Earth climate system by increasing greenhouse gas (GHG) emissions from land use changes and by changing the reflective and energy exchange characteristics of land ecosystems. Using an integrated assessment model that links an economic model with climate, terrestrial biogeochemistry, and biogeophysics models, we examined the biogeochemical and biogeophysical effects of possible land use changes from an expanded global second-generation bioenergy program on surface temperatures over the first half of the 21st century. Our integrated assessment model shows that land clearing, especially forest clearing, has two concurrent effects - increased GHG emissions, resulting in surface air warming; and large changes in the land's reflective and energy exchange characteristics, resulting in surface air warming in the tropics but cooling in temperate and polar regions. Overall, these biogeochemical and biogeophysical effects will only have a small impact on global mean surface temperature. However, the model projects regional patterns of enhanced surface air warming in the Amazon Basin and the eastern part of the Congo Basin. Therefore, global land use strategies that protect tropical forests could dramatically reduce air warming projected in these regions. Key Points Land-use changes from a global bioenergy program will impact the climate by 2050 Biofuels have a negligible impact on global climate but large regional impacts The climate impact of biofuels is influenced by the land use policy framework. ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84877941050&doi=10.1002%2fgrl.50352&partnerID=40&md5=2df144036e5c119c2eea313bb47d4992
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/6414
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Joint Program on the Science and Policy of Global Change, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
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| Recommended Citation: | |
Hallgren W.,Schlosser C.A.,Monier E.,et al. Climate impacts of a large-scale biofuels expansion[J]. Geophysical Research Letters,2013-01-01,40(8).
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