摘要
本文通过对松花江干流防洪区土地利用进行多细度划分,从多源数据进行多时相、多尺度提取,形成研究区土地利用数据和水系数据。本研究可为该区域的防洪救灾工作提供依据,并可作为“数字松花江”的数据基础。土地利用信息复合提取的工作模式,可降低工作量、减少数据冗余,提高工作效率,可应用于其他地理数据库建设的工作中。
The paper divides the utilized land in the flood control zone of the main stream with the multiple grids the land utilization data and the water system data are formed by many sources collected from many time phases and many dimensions.This study can provide the basis for the flood control and the disaster relief in this zone used as the numeral basis of“numeral Songhuajiang river”.The model of compound collecting land utilization information can reduce the work amount raises the work efficiency,applied in other geographic data bank construction.
出处
《东北水利水电》
2007年第3期45-47,共3页
Water Resources & Hydropower of Northeast China
关键词
土地利用
复合提取
松花江
land utilization
compound collecting
Songhuajiang river
