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The Improved Estimation for the Effective Supply of Productive Moisture Considering the Hysteresis of Soil Water-Retention Capacity

机译:考虑土壤保水能力滞后的生产性水分有效供给的改进估算

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摘要

The improved method for estimating the effective supply of productive moisture in soil is based on soil-hydrological indices. The estimation is carried out using the software based on the mathematical model with physically interpreted parameters. The model is developed in the framework of the concepts of capillarity and lognormal distribution of effective pore radii and describes the main and scanning curves of the hysteresis of soil water-retention capacity. The presented example demonstrates the advantage of the improved method that enables minimizing water wastage at crop irrigation.
机译:估计土壤中有效水分供应的改进方法是基于土壤水文指数。使用基于具有物理解释参数的数学模型的软件进行估算。该模型是在毛细作用和有效孔隙半径的对数正态分布概念的框架内开发的,描述了土壤保水能力的滞后的主要曲线和扫描曲线。所提供的示例说明了改进方法的优点,该方法能够最大程度减少农作物灌溉时的水浪费。

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  • 来源
    《Russian meteorology and hydrology》 |2015年第4期|278-285|共8页
  • 作者单位

    Peter Great St Petersburg Polytech Univ, St Petersburg 195251, Russia;

    Agrophys Res Inst, St Petersburg 195220, Russia;

    Leibniz Ctr Agr Landscape Res, D-15374 Muncheberg, Germany;

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