干旱区生态环境知识资源中心(Arid): Dryland Expansion in Northern China from 1948 to 2008

Arid

	Dryland Expansion in Northern China from 1948 to 2008
	Li Yue; Huang Jianping; Ji Mingxia; Ran Jinjiang
来源期刊	Advances in Atmospheric Sciences
ISSN	0256-1530
出版年	2015
卷号	32 期号:6 页码:870-876
英文摘要	This study examines the expansion of drylands and regional climate change in northern China by analyzing the variations in aridity index(AI), surface air temperature(SAT), precipitation and potential evapotranspiration(PET) from 1948 to 2008.It is found that the drylands of northern China have expanded remarkably in the last 61 years. The area of drylands of the last 15 years(1994-2008) is 0.65 * 10~6 km~2(12%) larger than that in the period 1948-62. The boundary of drylands has extended eastward over Northeast China by about 2° of longitude and by about 1° of latitude to the south along the middleto-lower reaches of the Yellow River. A zonal band of expansion of semi-arid regions has occurred, stretching from western Heilongjiang Province to southern Gansu Province, while shifts to the east of semi-arid regions in dry subhumid regions have also occurred. Results show that the aridity trend of drylands in northern China is highly correlated with the long-term trend of precipitation and PET, and the expansion of semi-arid regions plays a dominant role in the areal extent of drylands, which is nearly 10 times larger than that in arid and subhumid regions.
英文关键词	aridity index dryland expansion climate variation northern China
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5393600
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335478
作者单位	Li Yue, College of Atmospheric Sciences, Lanzhou University, Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou, Gansu 730000, China.; Huang Jianping, College of Atmospheric Sciences, Lanzhou University, Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou, Gansu 730000, China.; Ji Mingxia, College of Atmospheric Sciences, Lanzhou University, Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou, Gansu 730000, China.; Ran Jinjiang, College of Atmospheric Sciences, Lanzhou University, Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, Lanzhou, Gansu 730000, China.
推荐引用方式 GB/T 7714	Li Yue,Huang Jianping,Ji Mingxia,et al. Dryland Expansion in Northern China from 1948 to 2008[J],2015,32(6):870-876.
APA	Li Yue,Huang Jianping,Ji Mingxia,&Ran Jinjiang.(2015).Dryland Expansion in Northern China from 1948 to 2008.Advances in Atmospheric Sciences,32(6),870-876.
MLA	Li Yue,et al."Dryland Expansion in Northern China from 1948 to 2008".Advances in Atmospheric Sciences 32.6(2015):870-876.