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Bulletin of Botanical Research ›› 2012, Vol. 32 ›› Issue (3): 339-342.doi: 10.7525/j.issn.1673-5102.2012.03.015

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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:

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

CLC Number: