HEC-HMS分布式水文模型在黄土高原小流域的可应用性  

Applicability of the distributed hydrological model of HEC-HMS in a small watershed of the Loess Plateau area.

作　　者：张建军[1,2] 纳磊[1] 张波[1] 

机构地区：[1]北京林业大学水土保持学院 [2]山西吉县森林生态系统国家野外科学观测研究站

出　　处：《北京林业大学学报》2009年第3期52-57,共6页Journal of Beijing Forestry University

基　　金："十一五"国家科技支撑计划项目(2006BAD03A1204);林业科学技术推广项目(2006-76);日本住友财团基金项目(083085)

摘　　要：场降雨条件下小流域水文模型的研究是水文学的热点问题之一。该文利用山西吉县森林生态系统国家野外科学观测研究站2004—2006年的实测资料,在分析了HEC-HMS分布式水文模型参数敏感性的基础上,进行了参数率定和检验,然后利用率定好的参数,对HEC-HMS分布式水文模型在黄土高原小流域中的可应用性进行了评价。研究得出：参数Cn对洪峰流量和径流总量敏感,Cn的取值是决定模型模拟精度的关键;洪峰滞时对洪峰出现时间为一般敏感;模型率定期的确定系数在0.75-0.87之间,模型验证期的确定系数在0.73-0.82之间;HEC-HMS分布式水文模型适用于黄土高原地区。The authors evaluated the applicability of the distributed hydrological model HEC-HMS using observed hydrological data in 2004-2006 from a Chinese National Ecosystem Observation and Research Station located in Jixian County of Shanxi Province, and the sensitivity of parameters was analyzed in a small watershed of the Loess Plateau area. Based on the parameters derived from model calibration and validation, the HEC-HMS model was used to simulate the rainfall-runoff process in the watershed. Results showed that parameter Cn was the key factor determining the accuracy of the model simulation for total flow and peak flow. The R^2 ranged from 0.75 to 0.87 in calibration, and from 0.73 to 0.82 in validation, suggesting that HEC-HMS is suitable for modeling the hydrological process in the Loess Plateau area.

关 键 词：HEC-HMS 分布式水文模型 小流域 黄土高原 

分 类 号：S715[农业科学—林学]