为了提高垂直线源灌的水分利用效率，探明垂直线源灌不同线源直径下的入渗规律，通过模拟试验，研究了垂直线源灌不同线源直径下的入渗规律，比较了三种常规入渗模型的适用性。结果表明，随着线源直径的增加，入渗率和累积入渗量均增大；三种模型均能模拟不同线源直径下的入渗规律，其中Kostiakov入渗公式和Philip入渗模型较精确，Horton（变形）入渗公式更适合于入渗中期和后期的模拟；得出不同线源直径3种入渗模型的经验公式。该研究结果可为垂直线源灌技术推广应用提供理论依据。
Abstract
In order to improve the water use efficiency of vertical linear irrigation, a simulation experiments was conducted to study the infiltration rule of different line source diameters of vertical line source irrigation, and the applicability of three conventional infiltration models was compared. The results showed that the infiltration rate and cumulative infiltration volume increased with the increase of the diameter of the line source; all the three models could simulate the infiltration law of different line source diameters, among them, the Kostiakov infiltration formula and Philip infiltration model were more accurate, and the Horton (deformation) infiltration formula was more suitable for the simulation of the middle and late infiltration. And the empirical formulas of three infiltration models with line source diameter were obtained. The research results can provide a theoretical basis and practical reference for rational applications of vertical line source irrigation.
关键词
垂直线源灌 /
线源直径 /
入渗率 /
累积入渗量 /
入渗模型
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Key words
vertical line source irrigation /
line source diameter /
infiltration rate /
cumulative infiltration /
infiltration models
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基金
国家自然科学基金重点项目( 41830754) 。
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参考文献
[1] 王洁萍.新疆农业水资源利用效率及农户灌溉经济效益研究[D] . 乌鲁木齐: 新疆农业大学, 2016.
[2]董新光, 姜卉芳, 邓铭江.新疆水资源短缺原因分析[J].新疆农业大学学报, 2001, 24(1):10-15
[3]张新星, 杨振杰, 彭云, 等.我国节水灌溉的现状与分析[J].安徽农业科学, 2014, 42(33):11972-11974
[4]曾辰, 王全九, 樊军.初始含水率对土壤垂直线源入渗特征的影响[J].农业工程学报, 2010, 26(1):24-30
[5]李淑芹, 王全九.垂直线源入渗土壤水分分布特性模拟[J].农业机械学报, 2011, 42(3):51-57
[6] Fan Y., Huang N., Zhang J., Zhao T. Simulation of soil wetting pattern of vertical moistube-irrigation. [J].Water, 2018, 10(5): 601- 601
[7] 范严伟.垂直线源灌土壤入渗模拟及其预测模型研究[D]. 兰州: 兰州大学, 2018.
[8] 刘婧然, 程东娟, 王丽玄, 等.起垄微沟滴灌土壤水分入渗规律试验研究[J].节水灌溉, 2018, (9):6-11
[9]余小弟, 刘小刚, 朱益飞, 等.土壤质地和供水压力对竖插式微润管入渗的影响[J].排灌机械工程学报, 2017, 35(1):71-79
[10]刘风华, 代智光, 费良军.容重对红壤条件下涌泉根灌水分入渗能力影响[J].水土保持学报, 2019, 23(1):86-90
[11] 上官玉铎, 吕谋超, 宗洁, 等.负水头条件下入渗模型对于水分入渗规律适用性研究[J].节水灌溉, 2015, (3):8-11
[12]刘春成, 李毅, 任鑫, 等.四种入渗模型对斥水土壤入渗规律的适用性[J].农业工程学报, 2011, 27(5):62-67
[13]Wang Tongtong, Catherine E STEWART, MA Jiangbo, et al.Applicability of five models to simulate water infiltration into soil with added biochar[J].Journal of Arid Land, 2017, 9(5):701-711
[14] 李昊哲, 樊贵盛.Kostiakov入渗模型参数的预测精度对比分析研究[J].节水灌溉, 2017, (11):27-30
[15] 李昊哲, 樊贵盛.冻融土壤Philip入渗模型参数的BP预报模型[J].节水灌溉, 2017, (5):5-10
[16] 雷志栋，杨诗秀，谢森传.土壤水动力学[M]. 北京：清华大学出版社，1988：121－131.
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