浙江农业科学 ›› 2026, Vol. 67 ›› Issue (9): 2309-2313.DOI: 10.16178/j.issn.0528-9017.20250104

• 资源与环境 • 上一篇    下一篇

改良剂与灌溉方式对浙南黏质盐土盐分洗脱效果的影响

杨剑1(), 章明奎2(), 王亮3   

  1. 1.温州市龙湾区植保植检与农产品质量安全保障中心,浙江 温州 325024
    2.浙江大学 环境与资源学院,浙江 杭州 310058
    3.温州科技职业学院(温州市农业科学研究院),浙江 温州 325006
  • 收稿日期:2025-02-14 出版日期:2026-09-11 发布日期:2026-09-24
  • 通讯作者: 章明奎
  • 作者简介:章明奎,E-mail:mkzhang@zju.edu.cn。
    杨剑,主要从事农业技术的推广应用研究工作。E-mail:378833382@qq.com。
  • 基金资助:
    国家自然科学基金(42271047);国家自然科学基金(41977001);温州市重大科技攻关项目(ZN2023006)

Effects of amendments and irrigation methods on salt leaching efficiency in clayey saline soil of southern Zhejiang

YANG Jian1(), ZHANG Mingkui2(), WANG Liang3   

  1. 1.Plant Protection,Quarantine,and Agricultural Product Quality Safety Guarantee Center of of Longwan District,Wenzhou City,Wenzhou 325024,Zhejiang
    2.College of Environmental and Resource Sciences,Zhejiang University,Hangzhou 310058,Zhejiang
    3.Wenzhou Vocational College of Science & Technology(Wenzhou Academy of Agricultural Sciences),Wenzhou 325006,Zhejiang
  • Received:2025-02-14 Online:2026-09-11 Published:2026-09-24
  • Contact: ZHANG Mingkui

摘要:

为探讨滨海黏质盐土的快速改良技术,本研究采用室内土柱灌淋模拟方法,比较了淡水、含钙淡水、微咸水与淡水交替灌淋等灌溉方式及土壤施用脱硫石膏对盐分洗脱效果的影响。结果表明:土壤施用石膏能够加快灌淋水下渗速度,促进水溶性盐分的淋失;在相同土壤处理条件下,3种灌溉方式的洗盐效果由高到低依次为含钙淡水、微咸水与淡水交替、淡水。淡水灌淋易引发土壤碱化,而含钙淡水灌淋可减轻碱化程度;施用脱硫石膏则可有效抑制淋洗过程中的碱化现象。综上,采用脱硫石膏改良土壤,并结合含钙淡水灌淋或微咸水与淡水交替灌淋,可加速土壤脱盐,提高盐分洗脱效果。

关键词: 黏质盐土, 盐分洗脱, 脱硫石膏, 浙江

Abstract:

To explore rapid improvement techniques for coastal clayey saline soil,this study used indoor soil column leaching simulation to compare the effects of different irrigation methods(freshwater,calcium-containing freshwater,and alternating brackish water and freshwater)and soil application of desulfurization gypsum on salt leaching efficiency. The results showed that applying desulfurization gypsum to the soil accelerated the infiltration rate of irrigation water and promoted the leaching of water-soluble salts. Under the same soil treatment conditions,the salt removal efficiencies of the three irrigation methods were in the order:calcium-containing freshwater > alternating brackish water and freshwater > freshwater. Freshwater irrigation tended to cause soil alkalinization,whereas calcium-containing freshwater alleviated alkalinization;desulfurization gypsum application effectively inhibited alkalinization during the leaching process. In conclusion,using desulfurization gypsum for soil improvement combined with calcium-containing freshwater or alternating brackish water and freshwater irrigation can accelerate soil desalination and improve salt leaching efficiency.

Key words: clayey saline soil, salt leaching, desulfurization gypsum, Zhejiang

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