干旱区生态环境知识资源中心(Arid): Oasis cold island effect and its influence on air temperature:a case study of Tarim Basin, Northwest China

Arid

	Oasis cold island effect and its influence on air temperature:a case study of Tarim Basin, Northwest China
	Hao Xingming; Li Weihong
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2016
卷号	8 期号:2 页码:172-183
英文摘要	Oasis effect can improve the regional climate and habitability of an arid region. In this study, we explored the cold island effects of oases distributed along the edge of Tarim Basin by analyzing the oasis cold island effect (OCIE) intensity, spatial-temporal variation of OCIE, factors influencing the OCIE and impacts of OCIE on air temperature using geographical statistics and GIS methods based on the MODIS land surface temperature, land use/cover change (LUCC) and observed air temperature data. Results showed that all the oases in the Tarim Basin exhibited cold island effects, with the OCIE intensity highest in summer (-9.08°C), followed by autumn (-4.24°C) and spring (-3.85°C). The total area of oasis cold island (OCI) and the comprehensive OCIE index showed the same seasonal change trend as the OCIE intensity. However, the changing trends in areas of OCI with strong, medium and weak OCIEs were inconsistent across different seasons. Farmland and water areas were found to be the key contributors that affected the OCIE, and the area and aggregation metrics of these two land use/cover types directly contributed to the OCIE. By contrast, natural vegetation, such as forest and grassland, almost had no contribution to the OCIE. Simulation of observed air temperature data showed that if farmland is replaced by forest or grassland in the oasis, the mean, maximum and minimum air temperatures will increase significantly. This heating effect will be higher in summer (reaching 1.14°C to 2.08°C) and lower in spring and autumn. Moreover, the heating effect of farmland being replaced by forest will be higher than that of farmland being replaced by grassland. These results can provide a basis for understanding the cold island effect of oases in arid regions.
英文关键词	oasis cold island effect comprehensive oasis cold island effect index landscape index oasis evolution arid environment
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	History
CSCD记录号	CSCD:5626808
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335605
作者单位	Hao Xingming, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Li Weihong, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.
推荐引用方式 GB/T 7714	Hao Xingming,Li Weihong. Oasis cold island effect and its influence on air temperature:a case study of Tarim Basin, Northwest China[J],2016,8(2):172-183.
APA	Hao Xingming,&Li Weihong.(2016).Oasis cold island effect and its influence on air temperature:a case study of Tarim Basin, Northwest China.Journal of Arid Land,8(2),172-183.
MLA	Hao Xingming,et al."Oasis cold island effect and its influence on air temperature:a case study of Tarim Basin, Northwest China".Journal of Arid Land 8.2(2016):172-183.