摘要
利用1993年和2004年长三角地区的卫星遥感资料,分析了该地区的3个主要区域南京、上海、苏锡常及其周边的土地利用类型变化,定量地评价城市用地扩展程度.结合2004年地表温度(LST)卫星资料,揭示了城乡LST空间分布特征及其差异.结果表明:上海、苏锡常和南京11a期间城市建设用地动态度K分别为204.0%、354.3%和99.2%,苏锡常城市扩展程度最快;不同土地覆盖类型的LST不同,城市用地LST最高,其次作物地,林地最低;城乡之间平均地表温差具有季节变化,冬季最大,而秋季最小.
The satellite remote sensing data of the Yangtze River Delta in 1993 and 2004 were taken to analyze land use changes and urban growth of Nanjing,Shanghai,and Suzhou-Wuxi-Changzhou regions in the Yangtze River Delta.The land surface temperature （LST） in 2004 was selected as the indicator to estimate the difference of thermal characteristics between urban and rural area.The relationship of spatial characteristics of LST and types of land-use had also been analyzed.Conclusions were drawn as follows：the changes of the urbanized and cultivated lands were great during the past 11 years.The amount of cultivated land was decreasing,while the amount of construction and building land was rapidly increasing.The dynamic degrees of construction and building land among Shanghai,Suzhou-Wuxi-Changzhou and Nanjing regions were 204.0%,354.3% and 99.2%,respectively.The expansion of construction land was the largest in Suzhou-Wuxi-Changzhou region.The LST of urban area was the largest among all land-use.The seasonal LST differences between urban and rural regions were maximum in winter andminimum in autumn.
出处
《南京信息工程大学学报（自然科学版）》
CAS
2011年第3期227-231,共5页
Journal of Nanjing University of Information Science & Technology（Natural Science Edition）
基金
解放军理工大学气象学院基础理论研究基金
关键词
卫星遥感
土地利用
城市用地
地表温度
remote sensing data
thermal characteristics
dynamic degree of urban and use
