Arid
DOI10.1007/s11442-014-1120-4
Radiative forcing over China due to albedo change caused by land cover change during 1990-2010
Zhai Jun1,2; Liu Ronggao2; Liu Jiyuan2; Zhao Guosong2; Huang Lin2
通讯作者Liu Ronggao
来源期刊JOURNAL OF GEOGRAPHICAL SCIENCES
ISSN1009-637X
EISSN1861-9568
出版年2014
卷号24期号:5页码:789-801
英文摘要

Land cover change affects surface radiation budget and energy balance by changing surface albedo and further impacts the regional and global climate. In this article, high spatial and temporal resolution satellite products. were used to analyze the driving mechanism for surface albedo change caused by land cover change during 1990-2010. In addition, the annual-scale radiative forcing caused by surface albedo changes in China’s 50 ecological regions were calculated to reveal the biophysical mechanisms of land cover change affecting climate change at regional scale. Our results showed that the national land cover changes were mainly caused by land reclamation, grassland desertification and urbanization in past 20 years, which were almost induced by anthropogenic activities. Grassland and forest area decreased by 0.60% and 0.11%, respectively. The area of urban and farmland increased by 0.60% and 0.19%, respectively. The mean radiative forcing caused by land cover changes during 1990-2010 was 0.062 W/m(2) in China, indicating a warming climate effect. However, spatial heterogeneity of radiative forcing was huge among different ecological regions. Farmland conversing to urban construction land, the main type of land cover change for the urban and suburban agricultural ecological region in Beijing-Tianjin-Tangshan region, caused an albedo reduction by 0.00456 and a maximum positive radiative forcing of 0.863 W/m(2), which was presented as warming climate effects. Grassland and forest conversing to farmland, the main type of land cover change for the temperate humid agricultural and wetland ecological region in Sanjiang Plain, caused an albedo increase by 0.001.52 and a maximum negative radiative forcing of 0.184 W/m(2), implying cooling climate effects.


英文关键词ecological region land cover change surface albedo downward shortwave radiation surface radiative forcing China
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000339125700002
WOS关键词SURFACE ALBEDO ; CLIMATE-CHANGE ; TEMPERATURE-CHANGE ; IMPACTS ; MODIS ; SYSTEM ; DROUGHT ; CO2 ; VARIABILITY ; PERSPECTIVE
WOS类目Geography, Physical
WOS研究方向Physical Geography
来源机构中国科学院地理科学与资源研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/183327
作者单位1.Environm Satellite Ctr, Minist Environm Protect, Beijing 100094, Peoples R China;
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714
Zhai Jun,Liu Ronggao,Liu Jiyuan,et al. Radiative forcing over China due to albedo change caused by land cover change during 1990-2010[J]. 中国科学院地理科学与资源研究所,2014,24(5):789-801.
APA Zhai Jun,Liu Ronggao,Liu Jiyuan,Zhao Guosong,&Huang Lin.(2014).Radiative forcing over China due to albedo change caused by land cover change during 1990-2010.JOURNAL OF GEOGRAPHICAL SCIENCES,24(5),789-801.
MLA Zhai Jun,et al."Radiative forcing over China due to albedo change caused by land cover change during 1990-2010".JOURNAL OF GEOGRAPHICAL SCIENCES 24.5(2014):789-801.
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