| 不同灌排模式下土壤盐分动态模拟与评价 |
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| 引用本文： | 孙建书,余美.不同灌排模式下土壤盐分动态模拟与评价[J].干旱地区农业研究,2011,29(4):157-163. |
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| 作者姓名： | 孙建书 余美 |
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| 作者单位： | 1. 宁夏水利水电勘测设计研究院有限公司,宁夏,银川,750004
2. 中国科学院南京土壤研究所,江苏,南京,210008 |
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| 基金项目： | 国家自然科学基金项目(40771097); 公益性行业(农业)科研专项经费项目(200903001); 国家科技支撑计划项目课题(2006BAD05B02,2007BAC17B04); 新疆自治区科技攻关项目(200733144-1); 国家“863”计划重点项目课题(2006AA100207) |
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| 摘 要： | 利用HYDRUS-1 D模型对不同灌排模式下土壤水盐运移进行一维数值模拟,分析比较了节水灌溉和常规灌溉、暗管排水和无排水对盐碱地的改良效果.结果表明,节水灌溉模式下耕作层含盐量的年内变化规律与常规灌溉相似,在节水14.36%的情况下不会明显降低耕作层的洗盐效率;在连续常规灌溉和节水灌溉条件下耕作层的土壤盐分呈逐年减少的...
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| 关 键 词： | 节水灌溉 土壤盐碱化 水盐动态模拟 暗管排水 |
Simulation and evaluation of soil salt movement under different irrigation and drainage conditions |
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| SUN Jianshu,YU Mei.Simulation and evaluation of soil salt movement under different irrigation and drainage conditions[J].Agricultural Research in the Arid Areas,2011,29(4):157-163. |
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| Authors: | SUN Jianshu YU Mei |
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| Institution: | SUN Jian-shu1,YU Mei2 (1.Ningxia Water Resources & Hydropower Survey Design & Research Institute Co.,Ltd.,Yinchuan,Ningxia 750004,China,2.Institute of Soil Science,Chinese Academy of Sciences,Nanjing,Jiangsu 210008,China) |
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| Abstract: | One-dimensional water-salt movement under different conditions of irrigation and drainage was simulated by using HYDRUS-1D model.The effects on the reclamation of saline-alkali soil of conventional irrigation,water-saving irrigation,pipe drainage,and drainless condition were compared and evaluated.The results reveal that the annual salinity variations in plough layer under water-saving irrigation are similar to those under conventional irrigation,and cutting down 14.36 percent of irrigation water may not ob... |
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| Keywords: | water-saving irrigation soil salinization water-salt dynamic simulation pipe drainage |
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