农业科学研究2025，Vol.46Issue(4)：57-64,8.DOI:10.13907/j.cnki.nykxyj.2025.04.007
基于Hydrus-2D暗管布设参数对滨海盐碱地淋洗均匀性的影响研究
Study on the Influence of Subsurface Drain Layout Parameters on Leaching Uniformity in Coastal Saline Soil Based on Hydrus-2D
摘要
Abstract
This study investigates the impact of subsurface drain layout parameters on the leaching uniformity of coastal saline soil in Tianjin Binhai New Area.A field test was conducted in a representative area,and the Hydrus-2D numerical simulation model was established and validated using the field data.The validated model was employed to simulate the movement of water and salt in saline-alkali soil under various subsurface drain layout parameters.The results show that when the burial depth of subsurface drains is fixed,increasing the spacing between drains leads to a decrease in both the maximum and minimum soil salt content above the burial depth,thereby enhancing leaching uniformity.Conversely,the maximum and minimum salt content below the burial depth increases,resulting in decreased leaching uniformity.When the spacing between subsurface drains is fixed,increasing the burial depth reduces both the maximum and minimum salt content in the soil while improving leaching uniformity.Thus,employing a lay-out with wider spacing and greater burial depth for subsurface drains is beneficial for enhancing leaching uniformity in coastal silty sandy saline soil.关键词
滨海盐碱地/排水暗管/布设参数/淋洗均匀性/Hydrus-2DKey words
coastal saline soil/subsurface drains/layout parameters/leaching uniformity/Hydrus-2D分类
农业科技引用本文复制引用
刘璐瑶,聂阿秀,田晓明,李培军,邳学杰,李鹏,张涛..基于Hydrus-2D暗管布设参数对滨海盐碱地淋洗均匀性的影响研究[J].农业科学研究,2025,46(4):57-64,8.基金项目
天津市科技计划项目(23ZGCXQY00060、19YFZCSF01090) （23ZGCXQY00060、19YFZCSF01090）
