摘要
在总结前人模型的基础上,提出了一个森林水文耦合模型。运用辐射能量收支、空气动力传输、植物生理调节和土壤水运动的若干理论和方法,对森林流域的能量过程和水文过程进行逐日模拟。该模型同等地重视植物和土壤这两大流域因子,并将发生在两个层次中的水分变动联结起来,构成了概念性的集总参数日动态模型。在输入常规水文气象观测数据的前提下,可以输出流域系统的日蒸散发量、日径流量以及地面温度等数据序列。在小流域上对模型进行了检验,模拟得到的径流过程与实测过程较接近,模拟期内的径流总量误差在15%以内。
A mixed model of forest hydrology,MVHM,is proposed based on summarizing other models.Tbe energy transfers and hydrologic pro- cesses in a forested watershed are daily simulated by means of some the- ories and methods in radiation budget,plant physiology,and soil water dynamics.Equal attention is given to plant and soil,two important fac- tors on a watershed,and the moisture fluxes in plant and soil are conne- cted in this dynamic conceptual parameter model.When general hydro- meteorological data are put in,daily evaportranspiration,runoff and tempe- rature on soil surface can be obtained from the model.Practical simula- tion and test have been made in a small watershed,and the simulated run- off is close to the measured one,with the error being less than 15%.
出处
《水土保持学报》
CSCD
北大核心
1991年第1期73-79,共7页
Journal of Soil and Water Conservation
关键词
森林水文
流域模型
日径流量
forest hydrology
watershed model daily runoff
