Rainfall-runoff simulation is the very important technique for soil erosion, non-point source pollution, surface water balance calculation and some other study fields.
降雨径流模拟是土壤侵蚀、非点源污染、地表水量平衡计算等众多研究领域的非常重要的技术手段。
Actual evapotranspiration is a significant variable in the water balance calculation. It links daily rainfall, irrigation amount and soil bypass flow to calculate an immobile water deficit.
实际作物腾发量是水平衡模型计算的一个重要变量，它和每日降雨量，灌溉量及土壤径流量共同计算静止水的亏缺量。
Studies on runoff-rainfall relationship are important to understand the hydrological processes and the water balance in a small catchment.
观测了水源区的太行山小流域径流及降雨过程，分析了径流与降雨的关系。
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