孙燕,朱梦杰,王全九,张继红.加氧微咸水溶氧量对土壤水盐运移特征的影响[J].农业机械学报,2019,50(6):299-305.
SUN Yan,ZHU Mengjie,WANG Quanjiu,ZHANG Jihong.Effect of Dissolved Oxygen Content of Oxygenated Brackish Water on Soil Water and Salt Transport[J].Transactions of the Chinese Society for Agricultural Machinery,2019,50(6):299-305.
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加氧微咸水溶氧量对土壤水盐运移特征的影响   [下载全文]
Effect of Dissolved Oxygen Content of Oxygenated Brackish Water on Soil Water and Salt Transport   [Download Pdf][in English]
投稿时间:2019-03-15  
DOI:10.6041/j.issn.1000-1298.2019.06.034
中文关键词:  加氧微咸水  溶氧量  入渗特征  水盐运移  入渗模型
基金项目:国家自然科学基金项目(41830754)、国家自然科学基金面上项目(2016A03008)和新疆维吾尔自治区重大科技专项(2016A03008)
作者单位
孙燕 西安理工大学 
朱梦杰 西安理工大学 
王全九 西安理工大学
中国科学院水利部水土保持研究所 
张继红 西安理工大学 
中文摘要:利用微纳米发泡器对微咸水进行加氧处理,并对加氧微咸水入渗条件下的土壤水盐运移特征及对入渗模型参数影响开展了研究。结果表明,在微咸水不同溶氧量入渗条件下,入渗时间相同时,累积入渗量和湿润锋深度随溶氧量增加先增加后减小,微咸水溶氧量为14.0mg/L时累积入渗量和湿润锋深度最大。相比于其他处理,微咸水溶氧量为14.0mg/L时能加快水分入渗,增加土壤体积含水率。此外,相比于不加氧处理,不同加氧水平入渗均能提高灌溉水脱盐效率。同时,利用现有入渗模型对入渗过程进行了定量分析,结果显示代数模型和PHILIP模型都能准确描述加氧微咸水入渗过程,而且模型参数与微咸水溶氧量存在函数关系。PHILIP模型中吸渗率随着微咸水溶氧量的增加呈先增加后减小的趋势,最大值出现在14.0mg/L,代数模型中综合形状系数则呈现相反的规律,最小值出现在14.0mg/L,且代数模型可较好描述加氧微咸水一维垂直入渗条件下的土壤含水率分布。
SUN Yan  ZHU Mengjie  WANG Quanjiu  ZHANG Jihong
Xi’an University of Technology,Xi’an University of Technology,Xi’an University of Technology;Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources and Xi’an University of Technology
Key Words:oxygenated brackish water  dissolved oxygen content  infiltration characteristics  water and salt distribution  infiltration model
Abstract:The distribution of salt and water and the parameters of infiltration model under the condition of oxygenated brackish water were investigated, and micro-nanobubble rapid generation device was used to carry out different oxygenated levels treatment to brackish water. The results showed that under the condition of different dissolved oxygen infiltration in brackish water, when the infiltration time was the same, the cumulative infiltration and the wetting front depth were increased first and then decreased with the dissolved oxygen amount, and when the dissolved oxygen content of brackish water was 14.0mg/L, the cumulative infiltration and the depth of wet front were maximum. Compared with other treatments, infiltration conditions with dissolved oxygen content of 14.0mg/L in brackish water could accelerate water infiltration and increase soil moisture content. In addition, compared with the treatment without the addition of oxygen, infiltration of different oxygen levels could improve the desalination efficiency of irrigation water. The fitting effect of algebraic model was better than that of PHILIP model under the condition of oxygenated brackish water. In the PHILIP model, with the increase of dissolved oxygen in brackish water, the permeation rate was increased first and then decreased, and the maximum appeared at 14.0mg/L. In the algebraic model, the comprehensive shape factor showed the opposite law, and the minimum value appeared at 14.0mg/L, the algebraic model was able to fit the soil moisture content under one-dimensional vertical infiltration conditions of oxygenated brackish water.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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