摘要： 基于GIS技术与分布式水文模型，设计并实现泥石流流域分布式水文计算系统。以流域降雨、高程、坡度等数据为输入，对泥石流流域的降雨产流、产沙进行模拟，自动批量计算指定时间段内每日流域出口清水流量、泥沙流量以及流水含沙量。将系统应用到云南蒋家沟泥石流流域中，计算得到的高含沙水流含沙量与实测的含沙量数据误差很小，表明系统具有较高的精度和适用性。

关键词: 地理信息系统, 空间数据, 泥石流, 分布式水文模型

Abstract: Based on Geographic Information System(GIS) technology and distributed hydrological model, a computational system of debris-flow watershed is designed and implemented. With data such as rainfall, elevation and slope introduced, the system simulates rainfall-runoff and rainfall-sediment of the watershed to calculate runoff, sediment yield and sediment concentration automatically for each day.The system is applied to Jiangjia Valley, a debris-flow basin of Yunnan Province. Calculated result agrees well with the measured sediment concentration, which shows that the system has high reliability and applicability.

Key words: Geographic Information System(GIS), spatial data, debris-flow, distributed hydrological model

中图分类号: 

• TP319