Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Hydraulic Property and Solute Breakthrough from Salt Accumulated Soils under Various Head Pressures

  • Lee, Sanghun (National Institute of Crop Science, Rural Development Administration) ;
  • Chung, Doug-Young (College of Agricultural and Life Science, Chungnam National University) ;
  • Hwang, Seon-Woong (National Institute of Crop Science, Rural Development Administration) ;
  • Lee, Kyeong-Bo (National Institute of Crop Science, Rural Development Administration) ;
  • Yang, Chang-Hyu (National Institute of Crop Science, Rural Development Administration) ;
  • Kim, Hong-Kyu (National Institute of Crop Science, Rural Development Administration)
  • Received : 2012.08.01
  • Accepted : 2012.09.05
  • Published : 2012.10.30
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Abstract

Salt accumulated soil should be reclaimed to lower salt level for crop production. This study was carried out to investigate the characteristics of water flow and transport of mono and divalent solutes on salt accumulated soils with different head pressures. Saturated hydraulic conductivity was measured by constant and falling head methods with maintaining different head pressures. Saturated hydraulic conductivity was influenced by bulk density and organic matter contents in soils, but it had different elusion patterns between saline and sodic soil. While the quantity of water necessary for reclamation could be varies with soil type, it was considered that the supply of one pore volume of water was affordable and economic. Additional head pressure significantly increased the volume of leachate at a given time and it was more effective at low organic matter soils. The results indicate that additional head pressure would be one of the best irrigation practices on desalination method for salt accumulated soils.

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