DOI: 10.1007/s10584-017-1962-8
Scopus记录号: 2-s2.0-85018524044
论文题名: Global climate forcing from albedo change caused by large-scale deforestation and reforestation: Quantification and attribution of geographic variation
作者: Jiao T. ; Williams C.A. ; Ghimire B. ; Masek J. ; Gao F. ; Schaaf C.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2017
卷: 142, 期: 2018-03-04 起始页码: 463
结束页码: 476
语种: 英语
英文关键词: Climate change mitigation
; Forest conversion
; Land cover change
; Modis albedo
; Radiative forcing
Scopus关键词: Atmospheric radiation
; Deforestation
; Forestry
; Image reconstruction
; Land use
; Radiometers
; Reforestation
; Satellite imagery
; Snow
; Solar radiation
; Climate change mitigation
; Forest conversion
; Land-cover change
; MODIS albedo
; Radiative forcings
; Climate change
; albedo
; climate change
; climate forcing
; data set
; deforestation
; environmental management
; forest management
; geographical variation
; global climate
; global warming
; land cover
; land use change
; MODIS
; radiative forcing
; reforestation
; satellite data
; snow cover
; Coniferophyta
英文摘要: Large-scale deforestation and reforestation have contributed substantially to historical and contemporary global climate change in part through albedo-induced radiative forcing, with meaningful implications for forest management aiming to mitigate climate change. Associated warming or cooling varies widely across the globe due to a range of factors including forest type, snow cover, and insolation, but resulting geographic variation remains poorly described and has been largely based on model assessments. This study provides an observation-based approach to quantify local and global radiative forcings from large-scale deforestation and reforestation and further examines mechanisms that result in the spatial heterogeneity of radiative forcing. We incorporate a new spatially and temporally explicit land cover-specific albedo product derived from Moderate Resolution Imaging Spectroradiometer with a historical land use data set (Land Use Harmonization product). Spatial variation in radiative forcing was attributed to four mechanisms, including the change in snow-covered albedo, change in snow-free albedo, snow cover fraction, and incoming solar radiation. We find an albedo-only radiative forcing (RF) of -0.819 W m-2 if year 2000 forests were completely deforested and converted to croplands. Albedo RF from global reforestation of present-day croplands to recover year 1700 forests is estimated to be 0.161 W m-2. Snowcover fraction is identified as the primary factor in determining the spatial variation of radiative forcing in winter, while the magnitude of the change in snow-free albedo is the primary factor determining variations in summertime RF. Findings reinforce the notion that, for conifers at the snowier high latitudes, albedo RF diminishes the warming from forest loss and the cooling from forest gain more so than for other forest types, latitudes, and climate settings. © Springer Science+Business Media Dordrecht 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84024
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Graduate School of Geography, Clark University, Worcester, MA, United States; Earth Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; NASA, Goddard Space Flight Center, Greenbelt, MD, United States; USDA, Agricultural Research Service, Beltsville, MD, United States; School for the Environment, University of Massachusetts, Boston, MA, United States
Recommended Citation:
Jiao T.,Williams C.A.,Ghimire B.,et al. Global climate forcing from albedo change caused by large-scale deforestation and reforestation: Quantification and attribution of geographic variation[J]. Climatic Change,2017-01-01,142(2018-03-04)