興るべき「土壌化学工学」における粘土科学の役割

概要

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The number of clay-related presentations in the annual meeting of the Japanese Society of Soil Science and Plant Nutrition is continually decreasing. This trend is probably due to the recognition that the research problems on the structure of soil clay minerals and physico-chemical properties have been basically solved. However, this does not mean that the role of clay research in soil science is terminated. To maintain high agricultural production without environmental pollution, the addition of fertilizers and various amendments have to be controlled to meet just the requirement of plants. For cost effective removal of the toxic heavy metals from soils, e.g., by electrokinetic methods, the movement of the metals in an electric field under intensive interaction with soil clays have to be predicted quantitatively. This research area, which may be called Soil Chemical Engineering, requires more application-oriented predictive studies on clay-nutrient and clay-pollutant interactions based on the comprehensive understanding of physical, chemical mineralogical nature of clay materials. In the course of research in soil chemical engineering, discovery of new soil clay materials and new phenomena are expected, which will, in turn, stimulate the basic clay research.
日本粘土学会の論文
1996-12-27