Simulating 3-D water flow in subsurface drain trenches and surrounding soils in a clayey field

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• 作者：Heidi Salo^a ; ^{heidi.salo@aalto.fi} ; Lassi Warsta^a ; Mika Turunen^a ; Jyrki Nurminen^b ; Merja Myllys^c ; Maija Paasonen-Kivekä ; s^d ; Laura Alakukku^e ; Harri Koivusalo^a
• 关键词：3-D modelling ; Preferential flow ; Supplementary drain installation
• 刊名：Soil and Tillage Research
• 出版年：2017
• 出版时间：May 2017
• 年：2017
• 卷：168
• 期：Complete
• 页码：20-32
• 全文大小：2382 K
• 卷排序：168

文摘

Excavated drain trenches were studied with and without supplementary drains. Fast water flow through drain trenches was simulated using a 3-D hydrological model. One and two pore system model setups were used to study preferential flow. Both models were suitable to describe the recorded drain discharge. Heterogeneity of clay soil should be taken into account in model parameterization.