| 不同灌溉方式对温室表层土壤盐分积累的影响 |
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| 引用本文： | 王为木,高缙.不同灌溉方式对温室表层土壤盐分积累的影响[J].安徽农业科学,2010,38(12):6434-6435,6553. |
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| 作者姓名： | 王为木 高缙 |
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| 作者单位： | 河海大学南方地区高效灌排与农业水土环境教育部重点实验室,河海大学水利水电学院,江苏南京,210098 |
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| 摘 要： | 目的]研究不同灌溉方式对温室表层土壤盐分积累的影响。方法]通过连续2年在河海大学节水园区温室大棚内栽培番茄小区试验,对滴灌、渗灌和常规灌溉3种灌溉方式及不同施肥量对土壤表层的盐分积累进行比较研究。结果]0～20cm土层土壤全盐含量以滴灌最低,渗灌次之,常规灌溉最高;滴灌对降低土壤SO42-和Na＋效果最显著。结论]节水灌溉方式对改变土壤离子组成、防止温室土壤盐渍化具有重要作用。
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| 关 键 词： | 温室 灌溉方式 盐分积累 |
Effects of Different Irrigation Methods on Salt Accumulation in Topsoil under Greenhouse |
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| Institution: | WANG Wei-mu et al(Key Laboratory of Ministry of Education of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China,College of Water Conservancy and Hydropower,Hohai University,Nanjing,Jiangsu 210098) |
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| Abstract: | Objective]The research aimed to dissuss the effects of differentirrigation methods on salt accumulation in topsoil under greenhause.Method]Field experiments of tomatos were conducted to investigate the effects of three methods of irrigation(drip irrigation,infiltration irrigation and conventional irrigation)on accumulation of soluble salt in topsoil under greenhouse in Water-saving Park of Hohai University.Result]The results showed that the lowest value of total soluble salt content in 0-20 cm of soil layer was drip irrigation,followed by infiltration irrigation and the conventional irrigation.SO42-and Na+ contents in topsoil were significantly decreased by drip irrigation than other ions,which were two main ions contributing to soil salinization.Conclusion]It could be deducted with the experimental result that selecting a water-saving irrigation method would be an effective way to change the ion composition and prevent soil salinization under greenhouse. |
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| Keywords: | Greenhouse Irrigation method Soluble salt accumulation |
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