DOI: 10.1002/2013JD020356
论文题名: Potential impact of land use change on future regional climate in the Southeastern U.S.: Reforestation and crop land conversion
作者: Trail M. ; Tsimpidi A.P. ; Liu P. ; Tsigaridis K. ; Hu Y. ; Nenes A. ; Stone B. ; Russell A.G.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 20 起始页码: 11577
结束页码: 11588
语种: 英语
英文关键词: climate
; land use
; sensitivity
Scopus关键词: Air quality
; Climate change
; Crops
; Evaporative cooling systems
; Land use
; NASA
; Reforestation
; Sensitivity analysis
; Weather forecasting
; Anthropogenic climate changes
; climate
; Global climate model
; Land use and land cover change
; Meteorological fields
; Pollutant concentration
; sensitivity
; Weather research and forecasting models
; Climate models
; agricultural land
; anthropogenic effect
; biomass burning
; boundary layer
; future prospect
; land cover
; land use change
; nature-society relations
; reforestation
; regional climate
; warming
; weather forecasting
; United States
英文摘要: The impact of future land use and land cover changes (LULCC) on regional and global climate is one of the most challenging aspects of understanding anthropogenic climate change. We study the impacts of LULCC on regional climate in the southeastern U.S. by downscaling the NASA Goddard Institute for Space Studies global climate model E to the regional scale using a spectral nudging technique with the Weather Research and Forecasting Model. Climate-relevant meteorological fields are compared for two southeastern U.S. LULCC scenarios to the current land use/cover for four seasons of the year 2050. In this work it is shown that reforestation of cropland in the southeastern U.S. tends to warm surface air by up to 0.5 K, while replacing forested land with cropland tends to cool the surface air by 0.5 K. Processes leading to this response are investigated and sensitivity analyses conducted. The sensitivity analysis shows that results are most sensitive to changes in albedo and the stomatal resistance. Evaporative cooling of croplands also plays an important role in regional climate. Implications of LULCC on air quality are discussed. Summertime warming associated with reforestation of croplands could increase the production of some secondary pollutants, while a higher boundary layer will decrease pollutant concentrations; wintertime warming may decrease emissions from biomass burning from wood stoves. Key Points Land use impacts on regional climate are sensitive to stomatal resistance Reforestation of crop regions in the Southeast lead to warming Cooling tends to occur when forest is replaced with crop in the Southeast ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63216
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States; Center for Climate Systems Research, Columbia University, New York NY, United States; NASA Goddard Inst Space Studies, New York NY, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta GA, United States; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta GA, United States; School of City and Regional Planning, Georgia Institute of Technology, Atlanta GA, United States
Recommended Citation:
Trail M.,Tsimpidi A.P.,Liu P.,et al. Potential impact of land use change on future regional climate in the Southeastern U.S.: Reforestation and crop land conversion[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(20)