DOI: 10.1175/JCLI-D-11-00535.1
Scopus记录号: 2-s2.0-84870045119
论文题名: Local and remote climate impacts from expansion of woody biomass for bioenergy feedstock in the southeastern United States
作者: Murphy L.N. ; Riley W.J. ; Collins W.D.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 21 起始页码: 7643
结束页码: 7659
语种: 英语
Scopus关键词: Aleutian low
; Anthropogenic influence
; Atmosphere-land interaction
; Atmospheric circulation
; Atmospheric stability
; Australia
; Bio-energy
; Bioenergy plantation
; Carbon sequestration
; Climate impacts
; Community climate system model
; Cost effective
; Coupled simulation
; Feedstock production
; Global climate model
; Global impacts
; Land-cover change
; North Pacific
; Planetary boundary layers
; Plant functional type
; Sensible and latent heat fluxes
; Stomatal conductance
; Storm track
; U.S. Department of Energy
; Woody biomass
; Biofuels
; Carbon dioxide
; Climate change
; Expansion
; Feedstocks
; Forestry
; Surface roughness
; Climate models
; atmosphere-biosphere interaction
; atmospheric circulation
; bioenergy
; biofuel
; biomass
; carbon dioxide
; carbon sequestration
; climate effect
; climate modeling
; coniferous tree
; forest management
; land cover
; storm track
; Carbon Dioxide
; Climates
; Expansion
; Forestry
; Models
; Roughness
; Surface Properties
; United States
英文摘要: Many efforts have been taken to find energy alternatives to reduce anthropogenic influences on climate. Recent studies have shown that using land for bioenergy plantations may be more cost effective and provide a greater potential for CO2 abatement than using land for carbon sequestration. Native southern U.S. pines(i.e., loblolly) have excellent potential as bioenergy feedstocks. However, the land-cover change due to expansion of biofuels may impact climate through biophysical feedbacks. Here, the authors access the local and remote consequences of greater forest management and biofuel feedstock expansion on climate and hydrology using a global climate model, the NCAR Community Climate System Model, version 4 (CCSM4). The authors examine a plausible U.S. Department of Energy (DOE) biofuel feedstock goal by afforesting 50 million acres of C4 grasslands in the southeastern United States with an optimized loblolly plant functional type. Changes in sensible and latent heat fluxes are related to increased surface roughness, reduced bareground evaporation, and changes in stomatal conductance. In the coupled simulations, these mechanisms lead to a 1°C cooling, higher atmospheric stability, and a more shallow planetary boundary layer over the southeastern United States during the summer; in winter, a cooling of up to 0.25°C between 40° and 60°N,a weakened Aleutian low, and a wetter Australia occurs. A weakened Aleutian low shifts the North Pacific storm track poleward in the future loblolly scenarios. These local and global impacts suggest that biophysical feedbacks need to be considered when evaluating the benefits of bioenergy feedstock production. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52137
Appears in Collections: 气候变化事实与影响
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作者单位: Climate Sciences Department, Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Department of Earth and Planetary Science, University of California, Berkeley, CA, United States
Recommended Citation:
Murphy L.N.,Riley W.J.,Collins W.D.. Local and remote climate impacts from expansion of woody biomass for bioenergy feedstock in the southeastern United States[J]. Journal of Climate,2012-01-01,25(21)