摘要
不断加剧的人类活动强烈地改变着流域下垫面水文特性,从而影响流域产流过程。该文在流域水文统计相似性理论和降水径流相关的基础上,从流域下垫面的统计特征入手,以GIS技术为统计手段,构建了流域的径流与降水、前期雨量的分布式统计模型,并应用降水径流资料进行来相关参数率定。从在大阁流域五场降水检验结果来看,本模型整体模拟精度较高,从而为人类活动影响下流域产流模拟提供了一种有效研究途径。
The human activities have intensively changed the hydrological characteristic of basin underlayer, which affects the basin runoff yielding process. On the basis of the theory of basin statistic comparability and the feature of precipitationrunoff correlation, and starting with statistic characteristic of basin underlayer, the basin R～(P+Pa) distributed statistic model is constructed in this paper by means of the GIS technology. The involved parameters in this model are estimated with precipitation and runoff data. The checkout results of model in Dage river basin are accurate through five time precipitationrunoff tests. Simulation of basin runoff yield affected by human activities is supplied with an efficient approach.
出处
《资源科学》
CSSCI
CSCD
北大核心
2003年第6期14-18,共5页
Resources Science
基金
国家重点基础研究发展规划项目"黄河流域水资源演变规律与二元演化模型"(编号:G1999043602)。
