自然资源遥感2017，Vol.29Issue(3)：118-123,6.DOI:10.6046/gtzyyg.2017.03.17
武汉市建设用地扩张遥感监测及空间分异分析
A study of remote sensing monitoring and spatial variation of construction land expansion in Wuhan City
摘要
Abstract
In order to analyze the spatial-temporal variations of construction land expansion in Wuhan City, the authors obtained construction land data by using object-oriented classification method based on Landsat data acquired in 1990, 2000, 2005 and 2010.Urban expansion indices, which included expansion speed index (ESI), expansion intensity index(EII) and integrated expansion degree index (EDI), were used to quantitatively analyze temporal variations of construction expansion.And standard deviational ellipse(SDE)method was employed to investigate the spatial dynamics.The results show that the area of construction land in Wuhan City increased continuously, with a total increase of 749.9 km2 in two decades.The proportion of construction land expansion in earlier ten years, middle five years and later five years was 19.06%, 33.33% and 47.61%, respectively.The values of ESI and EII tended to increase, and the expansion degree was especially strong during 2005―2010 period.The spatial distribution of the construction land was discrete.Construction land partially extended in the earlier decade and tended to expand evenly in the middle five years.And the distribution of the construction land in the two periods exhibited a spatial pattern "spanning northeast to southwest".In the later five years, construction land expansion was balanced in every direction with no directivity.This study may provide decision support for the rational expansion of construction land in Wuhan City.关键词
武汉市/建设用地扩张/遥感/标准差椭圆(SDE)/空间分异Key words
Wuhan City/construction land expansion/remote sensing/standard deviational ellipse(SDE)/spatial variation分类
信息技术与安全科学引用本文复制引用
常变蓉,李仁东..武汉市建设用地扩张遥感监测及空间分异分析[J].自然资源遥感,2017,29(3):118-123,6.基金项目
国家自然科学基金项目"江汉平原钉螺扩散时空分布及其预警研究"(编号: 41571487)、中国科学院战略性先导科技专项项目"应对气候变化的碳收支认证及相关问题"之子课题"华南地区陆地生态系统固碳参量遥感监测及估算技术研究"(编号: XDA0505107)和环保部项目"全国生态环境十年(2000―2010年)变化遥感调查与评估"之子课题"华南地区生态环境十年变化遥感调查与评估"(编号: XDA050501)共同资助. （编号: 41571487）
