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生态学杂志 ›› 2011, Vol. 30 ›› Issue (07): 1504-1512.

• 研究报告 • 上一篇    下一篇

基于城市土地利用类型的地表温度与植被指数的关系

周媛1,2,石铁矛1,3**,胡远满1,高畅1,2,3,刘淼1   

  1. 1中国科学院沈阳应用生态研究所, 沈阳 110016;2中国科学院研究生院, 北京 100049;3沈阳建筑大学建筑与规划学院, 沈阳 110168
  • 出版日期:2011-07-08 发布日期:2011-07-08

Relationships between land surface temperature and normalized difference vegetation index based on urban land use type.

ZHOU Yuan1,2, SHI Tie-mao1,3**, HU Yuan-man1, GAO Chang1,2,3, LIU Miao1   

  1. 1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3College of Architecture and Urban Planning, Shenyang Jianzhu University, Shenyang 110168, China
  • Online:2011-07-08 Published:2011-07-08

摘要: 以沈阳市三环作为研究区域,基于QuickBird、Landsat/TM遥感影像和GIS空间分析技术,获取城市土地利用信息,陆地表面温度(LST)以及归一化植被指数(NDVI),定量分析了LST与NDVI在不同城市土地利用类型之间的差异及空间关系。结果表明:LST和NDVI具有明显相反的变化趋势,城市不同土地利用类型的LST与NDVI平均值也具有显著的差异性;多重比较发现,LST和NDVI在两两土地利用类型之间的差异不同;LST与NDVI相关性的显著程度受空间尺度的影响,LST与NDVI的相关性随空间尺度变化呈现出先增加后降低再逐渐增加的趋势。研究结果可为城市规划以及城市绿地系统规划中缓解城市热岛效应提供科学依据。

关键词: 土壤微生物, 土壤微生物过程, 重金属胁迫

Abstract: Based on the QuickBird, Landsat/TM images, and GIS spatial analysis techniques, the urban land use information, land surface temperature (LST), and normalized difference vegetation index (NDVI) in Shenyang City were obtained, and the differences of and spatial relationships between the LST and NDVI for different urban land use types in the City were quantitatively analyzed. There was an obvious reverse variation trend between the LST and NDVI, and the mean LST and NDVI values differed significantly with land use type. Multiple comparisons showed that the mean LST and NDVI values of pairs of each land use type also had significant differences, and the correlation between LST and NDVI was significantly affected by the scale of spatial resolution, being increased first, decreased then, and increased again with increasing spatial scale. This study could provide scientific basis for mitigating urban heat island effect in urban planning and urban green space system planning.

Key words: Soil microorganisms, Soil microbial process, Heavy metal stress