干旱区生态环境知识资源中心(Arid): 城市景观格局变化对城市热岛效应的影响--以乌鲁木齐市为例

Arid

	城市景观格局变化对城市热岛效应的影响--以乌鲁木齐市为例
其他题名	Effects of Landscape Pattern Change on Urban Heat-island Effect in Arid Areas--A Case Study in Urumqi
	马勇刚 1; 塔西甫拉提·特依拜 1; 黄粤 2; 杨金龙 3
ISSN	1001-4675
出版年	2006
卷号	23 期号:1 页码:172-176
中文摘要	利用遥感软件对1987年,1997年2期遥感影像进行监督分类,得到乌鲁木齐市的景观分类和景观格局变化图,并运用Fragstats软件对2期的景观格局做出定量评价,计算斑块数、斑块密度、平均斑块面积等景观指数;同时利用单窗体法提取各期LST（陆地表面温度）,对两者进行比较分析发现：①城区面积的扩大使城市热岛效应在强度和面积上有加强的趋势;②尽管绿地面积变化不大,但其破碎度增加,使城区与绿地相混合程度提高,导致特高温区域面积减少;③由于水体斑块数的增加,使更大范围的城区在水体影响下局部温度降低,但由于自然水体面积有限,且总体呈减少趋势,使得郊区、水库区域明显增温,与城市中心区域温差逐渐缩小.由此,针对研究区的具体情况,提出改善城市热岛效应的对策.
英文摘要	Locared in the hinterland of Eurasia, northern piedmont of the Tianshan Mountains and the southern marginal zone of the Junggar Basin, Urumqi （42°45＇-44°08＇N, 86°38＇ -88°58＇E, 680-920 m a. s. i. ） is the capital of Xinjiang Uygur Autonomous Region, its east-west length and south-north width are about 190 km and 120 km respectively, and its area is 11 440 km2. It belongs to the moderate-temperate continental arid climate, the annual temperature and precipitation are 7.3 ℃ and 236 mm respectively, the annual sunshine duration is 2 775 hours, and the frost-free period varies in a range of 105-168 days. In this paper, a case study on supervision classification of the images in Urumqi in 1987 and 1997 is carried out under the technological support of RS software, and a map of landscape patterns and their change is charted. Moreover, the landscape indexes including the number, density and average area of patches are calculated with Fragstats, and the data of land surface temperature are derived from these images with mono-window algorithm. After comparing and analyzing, it is found that the change of landscape patterns affects significantly the change of urban heat-island effect：（1） Urban expansion results in the intensity increase and area enlargement of urban heat-island effect; （2） Although the change of greenbelt area is not so significant, the mixing degree of the urban areas and greenbelts is increased and the area with high temperature is reduced due to the increase of fragmentation degree of the greenbelts; （3） Because of the increase of patch number of waters, the temperature in some areas is decreased, however, the temperature difference in downtown is gradually decreased because the area of waters is generally limited. Thus, some feasible measures are put forward for improving the urban heat-island effect.
中文关键词	景观格局 ; 城市热岛效应 ; 陆地表面温度 ; 景观分类 ; 乌鲁木齐
英文关键词	landscape pattern urban heat-island effect land surface temperature arid area RS Urumqi.
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:2296714
来源机构	中国科学院新疆生态与地理研究所 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219716
作者单位	1.新疆大学资源与环境科学学院干旱半干旱区可持续发展国际研究中心, 新疆绿洲生态实验室, 乌鲁木齐, 新疆 830046, 中国; 2.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 3.新疆大学资源与环境科学学院干旱半干旱区可持续发展国际研究中心, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	马勇刚,塔西甫拉提·特依拜,黄粤,等. 城市景观格局变化对城市热岛效应的影响--以乌鲁木齐市为例[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2006,23(1):172-176.
APA	马勇刚,塔西甫拉提·特依拜,黄粤,&杨金龙.(2006).城市景观格局变化对城市热岛效应的影响--以乌鲁木齐市为例.,23(1),172-176.
MLA	马勇刚,et al."城市景观格局变化对城市热岛效应的影响--以乌鲁木齐市为例".23.1(2006):172-176.