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应用生态学报 ›› 1998, Vol. 9 ›› Issue (5): 491-495.

• 研究论文 • 上一篇    下一篇

辽北平原苏打盐渍土增施泥炭对土壤盐分的影响

尹怀宁1, 白鸿祥1, 郑应顺1, 金凤鹤2, 西崎泰2, 山口达明2   

  1. 1. 辽宁师范大学地理系, 大连116029;
    2. 千叶工业大学工学部, 千叶县习志野市275
  • 收稿日期:1997-06-17 修回日期:1997-12-25 出版日期:1998-09-25 发布日期:1998-09-25
  • 基金资助:

    中日合作研究项目

Effect of applying peat to soda salinized soil on soil salinity in north plain of Liaohe River

Yin Huaining1, Bai Hongxiang1, Zheng Yingshun1, Jin Fenghe2, Yasushi Nishizaki2, Tatsuaki Yamaguchi2   

  1. 1. Liaoning Normal University, Dalian 116029;
    2. Department of Industrial Chemistry, Chiba Institute of Technology, Narashino shi, Chiba 275, Japan
  • Received:1997-06-17 Revised:1997-12-25 Online:1998-09-25 Published:1998-09-25

摘要: 对辽河北部平原苏打盐渍化土壤改良试验表明,在增施泥炭条件下,苏打草甸盐土当年玉米产量可达2500~4400kg·hm-2, 苏打碱化草甸土为5500~6800kg·hm-2, 增产率分别为40~144%和127~181%;第2年后者的持续产量为6200~8000kg·hm-2, 增产率仍高达69~118%.相应地,土壤剖面特别是耕作层呈现为明显脱盐,pH及碱化度下降,土壤有机质、全氮及全磷含量增加。

关键词: 辽河, 平原, 泥炭, 土壤改良, 盐渍土

Abstract: Amelioration experiment on soda salinized soil in north plain of Liaohe River shows that after applying peat, maize yields was 2500~4400kg·hm-2 on soda grassy marsh salt soil, and 5500~6800kg·hm-2 on intensified soda alkalized grassy marsh soil, with the increasing rates of 40~144% and 127~181%, respectively.In second year, the yield of the latter was 6200~8000kg·hm-2, with an increasing rae of 69~118%.Correspondingly, the soil profile, especially its plough layer, obviously shows desalination and decreasing of pHvalue and alkalinity; and the contents of soil organic matter, total nitrogen and total phosphorus were generally increased.

Key words: Liaohe River, Plain, Peat, Soil amelioration, Salinized soil