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Physico-chemical Properties of Korean Forest Soils by Parent Rocks  

Jeong, Jin-Heon (Korea Forest Research Institute)
Kim, Choon-Sig (Dept. of Forest Resources. Jinju National University)
Goo, Kyo-Sang (Korea Forest Research Institute)
Lee, Choong-Hwa (Korea Forest Research Institute)
Won, Heong-Gyu (Korea Forest Research Institute)
Byun, Je-Geong (Korea Forest Research Institute)
Publication Information
Journal of Korean Society of Forest Science / v.92, no.3, 2003 , pp. 254-262 More about this Journal
Abstract
This study was performed to determine the physicochemical properties of Korean forest soils by parent rock types (Igneous, Metamorphic, Sedimentary rocks) sampled from 915 soil profiles (A horizon : 810, B horizon : 915) between 1984 and 1990. The variables of soil physiochemical were properties significantly correlated among each rock type (P, Na$^+$, Ca$^2^+$, Mg$^2^+$) in A horizon. Soil chemical properties of B horizon showed similar correlation trends except for metamorphic rocks. Dominant soil texture of two soil horizons (A B) was loam except for silt loam of A horizon in sedimentary rocks. Soil bulk density in A horizon was 0.84g/cm³in metamorphic rocks, 0.91g/cm³in igneous rocks and 0.97g/cm³ in sedimentary rocks. Soil particle density was not significantly different among three parent rock types (2.52~2.54g/cm³ in A horizon and 2.60~2.62g/cm³ in B horizon). Soil pH in A horizon was pH 5.94 in sedimentary rocks, followed by pH 5.50 in igneous rocks and pH 5.34 in metamorphic rocks. The lowest value in organic matter content was 3.12% in sedimentary rocks, followed by 4.55% in igneous rocks and 4.74% in metamorphic rocks. Available phosphorus was significantly lower in sedimentary rocks (13.2mg/kg) than in metamorphic rocks (27.4mg/kg) and in igneous rocks (28.7mg/kg). Cation exchange capacity (CEC) was 10. 34cmo$l_c$/kg in sedimentary rocks, followed by 12.44cmo$l_c$/kg in metamorphic rocks and 13.24cmo$l_c$/kg in igneous rocks. Exchangeable cations in A horizon were higher in sedimentary rocks than in igneous or metamorphic rocks. The Korea forest soils by parent rock types showed similar physicochemical properties between igneous and metamorphic rocks, but soil properties of sedimentary rocks were significantly different in soil particle size distribution, soil bulk density, soil pH, organic matter content, total nitrogen, available phosphorus, CEC, Na$^+$, Ca$^2^+$, Mg$^2^+$, total base, and base saturation compared with both igneous and metamorphic rock types.
Keywords
forest soils; parent rocks; soil nutrients; soit properties;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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