作　　者： ; ; ; ; ; ;

机构地区： 清华大学建筑学院

出　　处： 《清华大学学报（自然科学版）》 2009年第3期313-316,共4页

摘　　要： 清口地区河道50多年来发生了巨大变化,其变化规律很难用常规手段掌握。该文利用多源遥感数据,结合1:10 000地形图资料,识别了清口地区2次较大规模的河道变迁,定量提取了4个重点河段变化信息,并探讨了其演变驱动力。结果表明,变化信息发现过程中,假彩色合成法优于光谱特征变异法,清口地区河道趋于稳定,其演变受人为因素影响大于自然因素。 Rivers in the Qingkou region have taken place tremendous changes in recent 50 years. It was difficult to analyze its regulation using conventional methods. The evolution of rivers was studied using multi-source remote sensed data and 1,10 000 topographic maps. Two notable changes in the Qingkou region were identified and rivers were divided into 4 sections by names. Changes and the factors that drive evolution were analyzed. The results demonstrate that the composite method is found to be more effective than the spectral variation method when detecting changes. Changes in rivers have made the river course more steady gradually, with man-made factors having more influence than natural factors.

关 键 词： 多源遥感 京杭大运河 清口地区 河道演变 驱动力

领　　域： [自动化与计算机技术] [自动化与计算机技术] [水利工程]