Welcome to Bulletin of Botanical Research! Today is Share:

Bulletin of Botanical Research ›› 2015, Vol. 35 ›› Issue (5): 786-790.doi: 10.7525/j.issn.1673-5102.2015.05.024

Previous Articles     Next Articles

Change of Ion Content and Particle Size of the Modified Severe Saline-alkali Soil

XING Ying-Ying1,2;LI Zhan-Jun1,2;ZU Yuan-Gang1,2;YANG Feng-Jian1,2*   

  1. 1.Key Laboratory of Forest Plant Ecology,Ministry of Education,Northeast Forestry University,Harbin 150040;
    2.State Engineering Laboratory of BioResource Eco-Utilization,Harbin 150040
  • Online:2015-09-15 Published:2015-11-20
  • Supported by:
     

Abstract:

We studied the ion content and particle size of soil that modified by four treatments, with the severe saline-alkali soil of Zhaodong City, Heilongjiang Province. Four 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). Different improvement treatments changed the severe saline-alkali soil ion content dramatically, and significantly improved the soil activated Al content, the content of exchangeable Ca, and Mg(P<0.05). The sulfate content, chlorine ion content, and carbonate content in the soil were significantly increased(P<0.05). The granulation of soil was observed under the scanning electron microscope(SEM), and the fragmentation degree, and porosity were increased significantly. Therefore, three different improvements of saline-alkali soil made the soil composition and physical structure different from the original saline-alkali substrate, and effectively improved the soil salinity.

Key words: severe saline-alkali soil, soil ion, soil particle size, amelioration performance

CLC Number: