天津农学院学报 ›› 2018, Vol. 25 ›› Issue (2): 5-8.doi: 10.19640/j.cnki.jtau.2018.02.002

• 研究与简报 • 上一篇    下一篇

牧草种植对盐土中几种阴离子含量的影响

张倩, 田秀平通信作者, 葛欢歌, 郭霓, 徐毓敏, 张宇, 严雪丹   

  1. 天津农学院 农学与资源环境学院,天津 300384
  • 收稿日期:2017-11-25 出版日期:2018-06-20 发布日期:2019-11-12
  • 通讯作者: 田秀平(1965-),女,教授,博士,主要从事土壤和植物营养学的教学与科研工作。E-mail:tian5918@sohu.com。
  • 作者简介:张倩(1996-),女,本科在读,主要从事植物营养与环境的研究工作。E-mail:1079605858@qq.com。
  • 基金资助:
    天津市大学生创新创业训练计划项目(国家级)(201610061119); 天津市重大科技专项(13ZCZDSF02600)

Influence of forage planting on several anions in saline soils

ZHANG Qian, TIAN Xiu-pingCorresponding Author, GE Huan-ge, GUO Ni, XU Yu-min, ZHANG Yu, YAN Xue-dan   

  1. College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China
  • Received:2017-11-25 Online:2018-06-20 Published:2019-11-12

摘要: 为研究牧草对盐渍土Cl-、SO42-、HCO3-、pH和EC的影响,在不同浓度NaCl处理土壤土中种植结缕草、早熟禾、田菁、小冠花、紫花苜蓿,通过测定土壤中Cl-、SO42-、HCO3-含量的变化,筛选出适合不同程度盐渍化土壤种植的牧草。结果表明:土壤中加入NaCl不但增加了Cl-含量,也增加HCO3-和SO42-含量,3种水溶性阴离子含量随NaCl浓度的增大而增大,5种牧草均可降低盐处理土壤中水溶性Cl-、SO42-含量,结缕草降低水溶性Cl-效果最佳,田菁降低水溶性SO42-效果较好,5种牧草均可降低重盐处理土壤中水溶性HCO3-含量;土壤pH随着NaCl浓度增加略有增加,EC值随NaCl浓度的增加显著增加,种植牧草也可降低各盐分处理土壤pH和EC值,均以田菁、早熟禾效果为好。

关键词: 盐土, 牧草, Cl-, SO42-, HCO3-, pH, EC

Abstract: In order to investigate the effect of herbage on the contents of Cl-, SO42-, HCO3-, pH and EC in saline soils, Zoysia japonica Steud, Poannua, Sebania bispinosa, Coronilla varia and Medicago sativa were planted in soil with different concentrations of NaCl. By determinating changes of soil anions, such as Cl-、SO42-、HCO3-, different degrees of salinization of the soil planted grass were screened and selected. The results showed that the addition of NaCl not only increased the content of Cl- but also increased the content of HCO3- and SO42-. The three kinds of water-soluble anions were heavy salt treatment> medium salt treatment>light salt treatment, and the forage grass could reduce salt treatment soil water-soluble Cl-, SO42- content; among them, Z. japonica reduce the water-soluble Cl- most significantly, followed by S. bispinosa to reduce water-soluble SO42- . Thus, 5 kinds of pasture could reduce heavy salt treatment of soil water-soluble HCO3- content. The soil pH increased slightly with the increase concentration of NaCl. The EC value increased significantly with the increase of NaCl concentration. The forage also decreased the pH and EC of soil, with Poannua, S. bispinosa the most effective.

Key words: saline soil, forage, Cl-, SO42-, HCO3-, pH, EC

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