Salt Accumulation and Desalinization of Rainfall Interception Culture Soils of Rubus sp. in Gochang-gun, Jeollabuk-do

복분자 비가림 하우스 토양 중 염류집적 요인과 물리적 제염효과

  • Chung, Byung-Yeoup (Advanced Radiation Technology Institute, KAERI) ;
  • Lee, Kang-Soo (Crop Production and Technology Major, Chonbuk National University) ;
  • Kim, Myung-Kon (Department of Food Science & Biotechnology, Chonbuk National University) ;
  • Choi, Young-Hee (Gochang Agriculture Technical Center) ;
  • Kim, Moo-Key (Bio-environmental Science Major, Chonbuk National University) ;
  • Cho, Jae-Young (Bio-environmental Science Major, Chonbuk National University)
  • 정병엽 (한국원자력연구원 방사선과학연구소) ;
  • 이강수 (전북대학교 작물생산공학) ;
  • 김명곤 (전북대학교 바이오식품공학) ;
  • 최영희 (고창군 농업기술센타) ;
  • 김무기 (전북대학교 생물환경학) ;
  • 조재영 (전북대학교 생물환경학)
  • Received : 2008.07.19
  • Accepted : 2008.09.25
  • Published : 2008.10.30

Abstract

This study was carried out to investigate the factors of desalinization of the rainfall interception culture soils of Rubus sp. in Gochang-gun, Jeollabuk-do. Soil samples were collected from 85 different sites of the rainfall interception culture soils of Rubus sp. in Gochang-gun, Jeollabuk-do. The electrical conductivity in paste saturation of rainfall interception culture soils ranged from $1.0\sim28.4dS\;m^{-1}$ (average: $4.8dS\;m^{-1}$) and salt affected soil which EC was higher than $4dS\;m^{-1}$, covered nearly 55% of all field surveyed. Salts in rainfall interception culture soils were accumulated by increasing the cultivation period. Electrical conductivity in rainfall interception culture soils was positively correlated with water soluble anions such as chloride ion ($r=0.85^{**}$), nitrate ion ($r=0.94^{**}$), phosphate ion ($r=0.88^{**}$), and sulfate ion ($r=0.84^{**}$), respectively. As a result of desalinization experiments carried out by water management practices, the rinsing method was more effective than leaching method.

Keywords

Rubus sp.;Rainfall Interception Culture;Salt Accumulation;Electrical Conductivity;Desalinization

Acknowledgement

Supported by : 농촌진흥청

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