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Terraced paddy field rainfall-runoff mechanism and simulation using a revised tank model

机译：梯田梯田降雨径流机理及修正池模型模拟

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摘要

Terraced paddy fields play important roles in water and soil conservation because their water storage effect reduces and delays flood peaks. This study applies the terraced paddy field rainfall-runoff mechanism to the tank model. Though the traditional four-section tank model can easily simulate rainfall-runoff in a terraced paddy field, it has many parameters that are difficult to calibrate. To address the shortcomings of the traditional four-section tank model, this study develops a revised tank model to simulate rainfall-runoff. This study selects a terraced paddy field located in Hsuing-Pu village in Hsiuing-Chu County as the experimental field. The field under investigation was equipped with automatic monitoring stations, water-stage, and raingauges. These stations collected data on rainfall and water flow to simulate the rainfall-runoff model in that region. To simulate the runoff behavior of the experimental terraced paddy field, two rainfall events were selected from the gathered data andfive normal evaluation indexes based on static and hydrological theory were applied to calculate the results of simulation simultaneously. The revised tank model performed better than expected, and precisely predicted the variations and trends in flow charge. Comparison with representation indexes proved that the revised tank model is an appropriate and valuable tool for rainfall-runoff simulation.
机译：梯田在水土保持中起着重要作用，因为它们的蓄水作用减少并延缓了洪峰。本研究将梯田稻田降雨-径流机制应用于储罐模型。尽管传统的四节水箱模型可以轻松地模拟梯田稻田的降雨径流，但是它具有许多难以校准的参数。为了解决传统四节水箱模型的缺点，本研究开发了一种修正的水箱模型来模拟降雨径流。本研究选择位于秀清县徐兴村的梯田水田作为试验田。被调查的现场配备了自动监测站，水位和雨量计。这些站收集了有关降雨和水流的数据，以模拟该地区的降雨-径流模型。为了模拟实验性梯田的径流行为，从采集的数据中选择了两次降雨事件，并基于静态和水文理论对五个正常评价指标进行了应用，同时计算了模拟结果。修改后的储罐模型的性能好于预期，并精确预测了流量的变化和趋势。与代表性指标的比较证明，修正后的储罐模型是进行降雨径流模拟的合适且有价值的工具。

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