| 秋灌定额对越冬期土壤水盐运移分布的影响 |
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| 引用本文： | 李瑞平,史海滨,王长生,戴佳信,张相柱.秋灌定额对越冬期土壤水盐运移分布的影响[J].灌溉排水学报,2010,29(6). |
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| 作者姓名： | 李瑞平 史海滨 王长生 戴佳信 张相柱 |
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| 基金项目： | 内蒙古自然科学基金重点项目，"十一五"国家科技支撑计划重点项目，内蒙古高等学校科学研究基金项目，内蒙古农业大学博士科研启动基金项目 |
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| 摘 要： | 通过盐渍化冻融土壤秋灌试验,研究了不同秋灌定额下越冬期间土壤含水率、盐分的变化情况。结果表明,秋灌定额为150～200 mm时,春播期土壤含水率基本适宜。秋灌定额对土壤盐分的动态影响较大,秋灌能够起到冲洗压盐的作用。但是秋灌定额不宜过大,秋灌前不实施耕作措施更有利于储水保墒。
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| 关 键 词： | 秋灌定额 土壤含水率 冻融土壤 越冬期 |
Effect of Autumn Irrigation on Soil Water and Salt Transfer for Freezing and Thawing Period |
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| LI Rui-ping,SHI Hai-bin,WANG Chang-sheng,DAI Jia-xin,ZHANG Xiang-zhu.Effect of Autumn Irrigation on Soil Water and Salt Transfer for Freezing and Thawing Period[J].Journal of Irrigation and Drainage,2010,29(6). |
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| Authors: | LI Rui-ping SHI Hai-bin WANG Chang-sheng DAI Jia-xin ZHANG Xiang-zhu |
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| Abstract: | Based on the autumn irrigation experiment on saline soil,the change of soil water and salt under different autumn irrigation requirements were studied.The results showed: when autumn irrigation requirement is from 150 mm to 200 mm,soil water is suitable to spring planting.Autumn irrigation can play role on the leaching salt.However the requirement is generally not too large.The soil water on untilled land is larger that on ploughed land.Before autumn irrigating,not to plough is more helpful to water storage and moisture conservation. |
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| Keywords: | autumn irrigation norm soil moisture freezing-thawing soil winter period |
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