干旱区生态环境知识资源中心(Arid): Radiative forcing over China due to albedo change caused by land cover change during 1990-2010

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	Radiative forcing over China due to albedo change caused by land cover change during 1990-2010
	Zhai Jun; Liu Ronggao; Liu Jiyuan; Zhao Guosong; Huang Lin
来源期刊	Journal of Geographical Sciences
ISSN	1009-637X
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 Chinas 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/m2, 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 0.00152 and a maximum negative radiative forcing of 0.184 W/m2, 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
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5187936
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335378
作者单位	Zhai Jun, Environmental Satellite Center, Ministry of Environmental Protection, Beijing 100094, China.; Liu Ronggao, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China.; Liu Jiyuan, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China.; Zhao Guosong, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China.; Huang Lin, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, 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],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.