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受水利部国际合作与科技司的委托,由珠江水利委员会主持的水利部2000年科技创新项目《西北江中下游及珠江三角洲防洪形势变化遥感分析》成果最近通过鉴定。该项目利用收集的珠江流域西北江中下游及三角洲1977～1999年遥感信息数据,通过计算机图像信息处理,提取了河道平面形态、流域地貌及植被、排洪河道的堤防建设、梯级开发、航道整治、桥梁和港口建设、河道及河口围垦等动态变化信息,分析主要排洪河道近20年的河势变化,综合评估主要防洪河道因人类活动引起的防洪形势变化。该项目对西江中下游地区洪
Commissioned by the Department of International Cooperation and Science and Technology of the Ministry of Water Resources, the results of the Remote Sensing Analysis of Flood Control Situation in the Middle and Lower Reaches of the Northwest River and the Pearl River Delta, Science and Technology Innovation Project sponsored by the Pearl River Conservancy Commission in 2000, recently passed the appraisal. This project uses the collected remote sensing information data of the middle and lower reaches of the Northwest River in the Pearl River Basin and the Delta from 1977 to 1999 to extract the embankment construction, cascade development and waterway regulation of the river flat shape, the basin landform, the vegetation and flood discharge channel through the computer image information processing , Bridge and port construction, reclamation of estuaries and estuaries, etc., the change of river regime in the main channel of flood discharge was analyzed in the past 20 years, and the flood control situation caused by human activities was evaluated comprehensively. The project floods the middle and lower reaches of the Xijiang River