不同灌溉方法下保护地土壤盐分分布特征的研究
Study on Effects of Irrigation Methods on Salinity Distribution Characteristics of Protected Field
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摘要: 通过渗灌、滴灌、沟灌3种灌溉方法对保护地土壤pH、全盐含量及水溶性离子组成的影响,探讨了3种灌溉方法在保护地土壤酸化、盐化过程中的演化规律。结果表明:渗灌、滴灌、沟灌:3种处理方法中滴灌处理比渗灌处理和沟灌处理效果更好,表层水溶性盐分和硝酸盐积累较轻,酸化较轻,有利于土壤环境的可持续性发展和有效地保护土壤资源。Abstract: Comparing the variety of pH, the content of salt and water-soluble ions under infiltration irrigation, dripping irrigation and furrow irrigation of protected field soil, this paper discusses the evolvement rules of soil acidification and salinization by these three irrigation methods. The results show that the accumulation of soluble salt and nitrate of dripping irrigation is lower than those of infiltration irrigation and furrow irrigation and the degree of soil acidification is lower, which is conducive to sustainable development and effectively protection of soil resources.
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Key words:
- Soil Acidification /
- Salinity Accumulation /
- Irrigation Methods /
- Protected Field
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