Classification of volcanic ash soils and contribution of organic matter and clay to cation exchange capacity
1985
Park, C.S. | Kim, L.Y. (Rural Development Administration, Suwon (Korea R.). Agricultural Sciences Inst.) | Cho, S.J. (Chungbuk National Univ., Chongju (Korea R.))
The 38 typical representing volcanic ash soils (VAS) in Korea were subjected to multiple regression analysis to determine the relative contribution of organic matter (OM) and clay content to total cation-exchange capacity (CEC). This study, also was examined the soil characteristics of VAS. VAS in Korea could be classified into 3 Orders, 5 Suborders, 8 Great groups, 15 Subgroups, 23 Families, and 38 Series. Total area of VAS was 139, 162 ha and the most of than occurred in Chenju Island. Simple correlation coefficients showed significance relations at OM-CEC and clay-CEC in top-soil of VAS
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