摘要
为研究暗管排水条件下淋洗制度对土壤水盐运移的影响,本文以沿海盐碱地区为研究区域,选定典型试验地进行现场试验,利用现场试验数据率定了HYDRUS-2D模型参数并验证了模拟暗管排水的准确性,运用验证后的模型模拟了不同淋洗制度情况下的土壤盐分分布。结果表明:HYDRUS-2D能够较好地模拟暗管排水条件下的土壤水盐运移;在相同水量淋洗情况下,持续淋洗的淋洗效果优于间隔淋洗,间隔淋洗间隔时间越长淋洗效果越差。研究成果可为暗管排水条件下盐碱地淋洗制度的确定提供参考。
In order to study the influence of leaching system on soil water and salt transport under the condition of pipe drainage, this paper takes coastal saline-alkali areas as the research area, selects typical experimental sites for field experiments, calibrates the parameters of HYDRUS-2 D model and verifies the accuracy of simulating pipe drainage, and simulates the soil salt distribution under different leaching systems by using the verified model.The results show that: HYDRUS-2 D can simulate the soil water and salt transport under the condition of pipe drainage.Under the same amount of water, the leaching effect of continuous leaching is better than that of interval leaching, and the longer the interval time, the worse the leaching effect.
作者
潘云龙
许伟健
高琛
PAN Yunlong;XU Weijian;GAO Chen(Jiangxi Runze Testing Co.,Ltd.,Nanchang 330029,China;Kunshan Wai Affairs Bureau,Kunshan 215300,China;China Railway Watse Conservancy&Hydropowse Planning and Design Groop Co.,Ltd.,Nanchang 330029,China)
出处
《水资源开发与管理》
2021年第9期12-18,共7页
Water Resources Development and Management
