中文摘要：

本文以南京农业大学白马教科基地为实验区,探讨了将GIS和遥感信息应用到微流域划分,借助历史水情数据库和流域社会经济数据库,分析暴雨径流汇水过程,从而计算暴雨径流量、流速和水深。该研究为防洪规划提供有力依据,为中小流域防洪减灾决策提供科学支持。

英文摘要：

The south part of Nanjing city is covered with hills and well-developed small watershed drainage,which has small area as well as low regulation and storage capacity,triggering flood disasters frequently.In recent years,industrial parks have developed rapidly in this area,taking place of original farmland with low flood control standard.Flood prevention and control during industrial parks construction thus shows significant importance.Taking Baima teaching and research base of Nanjing Agricultural University as an experimental plot,we discussed small water delineation based on GIS (Geography Information System)and RS (Remote Sensing);then we analyzed rainstorm runoff catchment process by virtue of the historical hydrologic database and the watershed socioeconomic database;at last,we calculated the rainstorm runoff,flow velocity and water depth. This study provides a basis for flood control planning as well as provides scientific support for flood control and disaster reduction for small watersheds.