北京景观格局及其热环境效应变化研究  

Study on Beijing Landscape Pattern and Change in Its Thermal Environment Effect

作　　者：王跃辉[1] 杨为民[2] 陈桂良[1] 谭春阳[1] 王栋[1] 

机构地区：[1]西南林业大学林学院,云南昆明650224 [2]西南林业大学计算机与信息学院,云南昆明650224

出　　处：《西南林业大学学报（自然科学）》2014年第2期61-66,83,共7页Journal of Southwest Forestry University：Natural Sciences

摘　　要：用北京市1992、2000、2010年3期土地利用数据,计算分析分离度指数、聚集度、景观形状指数的变化,使用TM/ETM+的热红外波段数据反演北京市的地表温度,分析北京市区热效应的时空变化规律,并以2010年为例,分析景观格局指数、植被归一化指数与地表温度的关系。结果显示:1992—2010年北京市地表温度升高,且城市热岛范围增大;景观形状指数与分离度指数能很好地反映本区域地表温度,分离度指数、景观形状指数、植被指数与地表温度呈负相关关系。The tempo-spatial changes of thermal effects in the urban area of Beijing city were analyzed by stud-ying variations in the splitting index （SPLIT）,aggregation index （AI）,landscape shape index （LSI）and by re-trieving the land surface temperature LST with TM/ETM＋thermal infrared band data according to the two-decade span land-use data individually collected in 1992,2000 and 2010.The correlations among the landscape pattern index （LPI）,the normalized vegetation index （NDVI）and the land surface temperature in 2010 were analyzed. The results indicated that the land surface temperature in Beijing City increased and the scale of urban heat island effect expanded during 1992-2010.The land surface temperature could be well reflected by landscape shape index and splitting index.The land surface temperature was negatively correlated with splitting index,landscape shape index and normalized vegetation index.

关 键 词：景观格局指数 热效应 土地利用 北京市 

分 类 号：S731.2[农业科学—林学]