| 施钙条件下微咸水间歇入渗土壤水盐运移特征 |
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| 引用本文： | 雪静,王全九,毕远杰.施钙条件下微咸水间歇入渗土壤水盐运移特征[J].灌溉排水学报,2009(6). |
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| 作者姓名： | 雪静 王全九 毕远杰 |
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| 作者单位： | 西安理工大学水资源研究所;土壤侵蚀与旱地农业国家重点实验室; |
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| 基金项目： | 中国科学院知识创新工程重要方向项目(KSCX2-YW-N-003); 国家自然科学基金项目(50879067) |
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| 摘 要： | 施钙条件下微咸水一维间歇积水入渗试验结果显示:入渗量相同时,随着间歇时间和矿化度的增大,同一土层含水量减小;施钙使得入渗水中的钠离子不容易被表层土壤团粒所吸附,间歇时间越长,吸附在表层土壤中的钠离子浓度越低,相对的钙离子浓度增大,但间歇时间对总盐分浓度分布特征并无显著影响;同一土层上,钠离子浓度和钙离子浓度随着入渗水矿化度的增大而增高;土壤表层0~10 cm,施钙后的钠离子浓度明显小于不施钙的钠离子浓度,表层钠离子浓度降低,在实际中有利于作物生长。
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| 关 键 词： | 微咸水 水盐运移 间歇入渗 硫酸钙 |
Soil Water and Salt Transport Features of Saline Water Intermittent Infiltration under Calcium Fertilizer Application |
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| XUE Jing,WANG Quan-jiu,BI Yuan-jie.Soil Water and Salt Transport Features of Saline Water Intermittent Infiltration under Calcium Fertilizer Application[J].Journal of Irrigation and Drainage,2009(6). |
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| Authors: | XUE Jing WANG Quan-jiu BI Yuan-jie |
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| Institution: | XUE Jing1,WANG Quan-jiu1,2,BI Yuan-jie1 (1.Institute of Water Resources,Xi'an University Technology,Xi'an 710048,China,2.State Key Laboratory of Soil Erosion and Dry Land Farming on the Loess Plateau,Yangling 712100,China) |
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| Abstract: | Under calcium fertilizer application,the one-dimensional vertical intermittent infiltration test of saline water was carried out,the results showed that,when infiltration capacity is equal,with the increase of the intermittent time and salinity,soil water content of the same soil layer is decreasing.Calcium fertilizer application makes sodium ion of infiltrated water not easy adsorb by the surface soil aggregate,the longer intermittent time,the lower adsorbed surface soil aggregate sodium ion concentration,... |
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| Keywords: | saline water water and salt transport intermittent infiltration calcium nitrate |
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