摘要
利用长沙市1972年以来不同时期的遥感数据以及地形图资料,采用图像处理和人机交互式解译信息提取方法,获得了10个不同时期城市发展规模及土地利用变化信息。根据数据统计分析和数据分布规律,建立长沙市城市扩展数学模型,对城市发展和土地减少变化趋势进行分析预测,并且对长沙市国民经济发展和制约条件进行了分析和评价。
With the population growth and the rapid development of national economy, urban construction scale has also been growing. Urban expansion has led to a sharp reduction of arable land, which in turn seriously restricted the social and economic development. In this paper, adopting the remote sensing data and topographic map data acquired in different periods and using image processing and interpretation of human - machine interactive information retrieval method, the authors obtained the scale of urban development and land use change information of 10 different periods in Changsha. According to statistical analysis and data distribution, a mathematical model for urban growth in Changsha was established, and the factors development in Changsha are analyzed and evaluated.
出处
《国土资源遥感》
CSCD
2010年第4期60-63,共4页
Remote Sensing for Land & Resources
关键词
遥感信息
城市扩展
耕地减少
数学模型
Remote sensing information
Urban expansion
responsible for helping and restricting the economic Arable land reduction
Mathematical model
