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论文基于野外实验,采用五道沟实验站和杨楼实验区1965—2007年长系列资料,考虑土壤水垂向运动和再分布、冠层截留、蒸发、填洼、大孔隙、潜水排出补给地表水等要素,采用野外实验数据逐步细化和确定参数,提出淮北平原集总式“四水”转化模型,并提出一种新的冠层截留量年内分布确定方法。模型物理意义明确,对资料的要求较低,实用性较强。模型在杨楼流域应用结果表明,模拟流量过程线精度较高,在潜水位变动过线的拟合上效果较优,在径流过程和土壤含水量的拟合上表现较好。通过模型逐年计算统计,得出杨楼实验流域1991—2007年逐年及多年平均“四水”转化定量关系,为该区水文预报和作物水利用提供技术依据。
Based on the field experiments, this paper uses the long series of data from 1965 to 2007 in Wudaogou Experimental Station and Yanglou Experimental Area, taking into account the vertical movement and redistribution of soil water, canopy interception, evaporation, filling depression, macropore, Water and other factors, using the experimental data in the field to refine and determine the parameters step by step, a lumped model of “four-water” transformation in the Huaibei Plain was proposed and a new method to determine the distribution of the canopy inter-annual precipitation was proposed. The physical meaning of the model is clear, the requirements of the data are low, and the practicality is strong. The application results of the model in Yanglou Watershed show that the accuracy of the simulated flow process line is high, and the fitting effect of the over-line in the submarine position is better, and the fitting of runoff process and soil moisture content is better. Through the calculation of the model year by year, the quantitative relationship between annual and multi-year average annual “four-water” conversions in Yanglou experimental basin from 1991 to 2007 is obtained, which provides technical basis for hydrological forecasting and crop water utilization in the area.