Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00376-014-4106-3 |
Dryland expansion in northern China from 1948 to 2008 | |
Li Yue; Huang Jianping; Ji Mingxia; Ran Jinjiang | |
通讯作者 | Huang Jianping |
来源期刊 | ADVANCES IN ATMOSPHERIC SCIENCES |
ISSN | 0256-1530 |
EISSN | 1861-9533 |
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 0.65x10(6) km(2) (12%) larger than that in the period 1948-62. The boundary of drylands has extended eastward over Northeast China by about 2A degrees of longitude and by about 1A degrees of latitude to the south along the middle-to-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 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000352067100012 |
WOS关键词 | EAST-ASIA ; SATELLITE MEASUREMENTS ; SEMIARID CLIMATE ; BLACK CARBON ; DUST AEROSOL ; PRECIPITATION ; DESERTIFICATION ; NORTHWEST ; REGION ; TREND |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
来源机构 | 兰州大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/185454 |
作者单位 | Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Peoples R 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]. 兰州大学,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. |
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