牧草种植对盐土中几种阴离子含量的影响

doi:10.19640/j.cnki.jtau.2018.02.002

Journal of Tianjin Agricultural University ›› 2018, Vol. 25 ›› Issue (2): 5-8.doi: 10.19640/j.cnki.jtau.2018.02.002

• Researches and Scientific Notes • Previous Articles Next Articles

Influence of forage planting on several anions in saline soils

ZHANG Qian, TIAN Xiu-ping^{Corresponding Author}, GE Huan-ge, GUO Ni, XU Yu-min, ZHANG Yu, YAN Xue-dan

College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China

Received:2017-11-25 Online:2018-06-20 Published:2019-11-12

Abstract

Abstract: In order to investigate the effect of herbage on the contents of Cl^-, SO₄^2-, 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^-、SO₄^2-、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 SO₄^2-. 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^-, SO₄^2- content; among them, Z. japonica reduce the water-soluble Cl^- most significantly, followed by S. bispinosa to reduce water-soluble SO₄^2- . 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^-, SO₄^2-, HCO₃^-, pH, EC

CLC Number:

S548

ZHANG Qian, TIAN Xiu-ping, GE Huan-ge, GUO Ni, XU Yu-min, ZHANG Yu, YAN Xue-dan. Influence of forage planting on several anions in saline soils[J]. Journal of Tianjin Agricultural University, 2018, 25(2): 5-8.

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Influence of forage planting on several anions in saline soils

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