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植物研究 ›› 2012, Vol. 32 ›› Issue (3): 339-342.doi: 10.7525/j.issn.1673-5102.2012.03.015

• 论文 • 上一篇    下一篇

重度盐碱地营造杨树人工林土壤改良效果

杨逢建;刘维;李德文;祖元刚*   

  1. 东北林业大学森林植物生态学教育部重点实验室,哈尔滨 150040
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-05-20 发布日期:2012-05-20
  • 通讯作者: 祖元刚
  • 基金资助:
     

Effect of Poplar Plantation on Soil Amelioration in Severe Saline-alkali Soil

YANG Feng-Jian;LIU Wei;LI De-Wen;ZU Yuan-Gang*   

  1. Key Laboratory of Forest Plant Ecology of Northeast Forestry University,Ministry of Education,Harbin 150040
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-05-20 Published:2012-05-20
  • Contact: ZU Yuan-Gang
  • Supported by:
     

摘要: 为探讨重度盐碱地营造杨树人工林对土壤的改良效果,本实验以黑龙江省肇东市重度盐碱地作为研究对象,采用小穴改良“一字沟”觅食丘式原位修复、小穴改良“十字沟”觅食台式原位修复和小穴改良“井字沟”觅食坛式原位修复的方法对重度盐碱地进行改良。研究结果表明:实施不同改良措施后土壤特性发生了显著变化,土壤pH值、电导率含量显著下降;土壤碳酸根含量显著下降,交换性钙、镁含量显著提高;土壤胡敏酸和壳聚糖含量明显提高,土壤肥力增加。因此,本研究所采用的三种不同的改良措施具有良好的改良效果。

关键词: 重度盐碱地, 杨树, 土壤特性, 改良效果

Abstract: In order to investigate the effect of constructing poplar plantation on soil amelioration, the severe saline-alkali soil of Zhaodong City, Heilongjiang Province was studied. The 4 treatments were CK (Control), Bar treatment (Small hole improvement-Bar foraging ditch-In situ repair), Cross treatment (Small hole improvement-Cross foraging ditch-In situ repair) and Grid treatment (Small hole improvement-Grid form of foraging ditch-In situ repair), respectively. The results of the present study showed that the different improvement treatments changed the severe saline-alkali soil characteristics, significantly decreased the pH value, conductivity and carbonate content in soil surface (p<0.05). Meanwhile, the exchange of calcium and magnesium ion contents, and the humic acid and chitosan contents were significantly increased (p<0.05). Therefore, the 3 different treatments, based on Small hole improvement and In situ repair, had well modified effects for the severe saline-alkali soil.

Key words: Severe saline-alkali soil, poplar, soil characteristics, amelioration performance

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