Impact of Mounding on Poisoning Potential of Acid Sulphate Soil under Industrial Plants Forest Area Ogan Komering Ilir District

Abstract

Industrial Forest Plantations (HTI) are intended to increase productivity non-productive natural forest production. In Ogan Komering Ilir Regency HTI was developed in wetlands, one of which was acid sulphate soil which had major problems of flooding and waterlogging. To solve this problem, the technology other than making drainage canals is mounding. Mounding is by stacking around the material. It turned out that this mounding in acid sulphate soil posed a new problem is pirite oxidation which affected poisoning potential in acid sulphate soil. Purpose of this study was to analyze impact of this mounding on poisoning potential in acid sulphate fields in HTI area. This study uses survey methods and data are presented in tabulations. Analysis results of soil samples in mounding plot showed that poisoning potential could be seen, namely soil pH was very acidic (pH 70%), and concentration of pyrite was high (> 2.4%). This value is not suitable for plant growth

Keywords

• flooded, bed raising, acid sulphate soil