【作者】 但尚铭； 但玻； 蒋薇；

【Author】 DAN Shangming~1,DAN Bo~2,JIANG Wei~3 1.Sichuan Provincial Climatic Center,Chengdu 610072,P.R.China; 2.Sichuan Provincial Meteorological Observatory,Chengdu 610072,P.R.China; 3.Chengdu University of Information Technology,Chengdu 610225,P.R.China.

【机构】 四川省气候中心； 四川省气象台； 成都信息工程学院；

【摘要】 城市热力景观空间格局是城市附属物和城市活动性在热场方面的综合表现。使用2008年11月23日的Landsat5/TM数据,将第6波段反演为亮温,并按温度值的高低把热力景观分为7个类型;借鉴景观生态学的原理和方法,以破碎度指数、多样性指数、均匀度指数和优势度指数为评价指标,对成都市三环路内约200km~2热力景观空间格局的研究结果表明:5个行政区的热力景观格局指数存在显著差别,如金牛区的破碎度最大,为0.924,成华区的最小,为0.559,指数大小与城市热力景观类型的分布特点密切相关。这些结果对于分析和研究城市整体格局、城市规划和环境保护等具有应用意义。更多还原

【Abstract】 The spatial patterns of thermal landscape in a city are a holistic expression of urban attachments and activities in respects of thermal field.This paper inversed waveband 6 to brightness temperature and classified the thermal landscape into 7 types by using the landsat5/TM data dated Nov 23,2008.By borrowing the theory and methodology of the landscape ecology,this paper took the fragmentation index,diversity index,evenness index,and dominance index as its evaluation indicators to study the spatial patterns of thermal landscape in an area of about 200 sq km within the 3rd ring road of Chengdu,results are read as follows:indexes of thermal landscape evidently vary with the administrative district,totally 5 districts,among them Jinniu district witnessed the largest degree of fragmentation,standing at 0.924,while Chenghua district saw the least one,reaching 0.559.The indexes are highly relevant to characteristics of distribution for the types of thermal landscape in the city.The results will of significant application in probing and delving into the structure,planning,and environmental protection of a city as a whole.更多还原