中文摘要：

石梁河水库处于半湿润的暖温带季风气候区,暴雨洪水时常发生。水库总库容5.31亿m~3,是江苏省最大的人工水库,承泄新沭河上游和沂河、沭河部分区间来水,担负沂沭泗流域洪水调蓄任务。基于GIS构建洪水预报模型是将流域分成若干产、汇流单元,可有效描述产、汇流模型结构中降雨、蒸发、流域蓄水容量等水文要素的空间分布及时间变化过程。本文介绍了GIS洪水预报模型架构,石梁河水库流域及子流域生成、雨量站图层、土壤、土地利用等专题图层生成。阐述了新安江模型部分参数与土壤、植被覆盖、土地利用等图层的关系,并用实测资料进一步调试了石梁河水库洪水预报模型参数,合格率达85.71%。

英文摘要：

The Shilianghe reservoir is in the semi-humid warm temperate monsoon climate zone, where often occurs rainstorm and flood. It is the largest artificial reservoir in Jiangsu Province, whose total reservoir capacity is 531 million m~3, which is responsible for the flood storage of Yi-Shu-Si River basin. The flood forecasting model built based on GIS divided the basin into several runoff yield and concentration units, which could effectively describe the spatial distribution and temporal variation of hydrological elements such as rainfall, evaporation and storage capacity in the runoff yield and concentration model. The architecture of GIS flood forecasting model, the formation of thematic layers such as the Shi Liang River reservoir basin and sub-basin, rainfall station, soil, land use were introduced. The relationships between the parameters of Xin＇anjiang model and soil, vegetation cover and land use were described. The parameters of flood forecasting model of Shilianghe reservoir were further debugged with the measured data, and the qualified rate was 85.71%.