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- 저자 : 구교상 ( Kyo Sang Goo ) (검색결과 1 건)
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정진현 ( Jin Heon Jeong ),김춘식 ( Choon Sig Kim ),구교상 ( Kyo Sang Goo ),이충화 ( Choong Hwa Lee ),원형규 ( Heong Gyu Won ),변재경 ( Je Geong Byun ) 한국산림과학회 2003 한국산림과학회지 Vol.92 No.3
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<0.05). Solid percentage in A horizon was significantly correlated (r=0.1384~o,3247) with sand percentage, but particle density was not correlated with soil particle size distribution and soil three phases. Soil pH exhibited high significant correlation (r=0.2283~0.8307) with exchangeable cations (K^+, 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/cm^3 in metamorphic rocks, 0.91g/cm^3 igneous rocks and 0.97 g/cm^3 sedimentary rocks. Soil particle density was not significantly different among three parent rock types (2.52~2.54 g/cm^3 A horizon and 2.60~2.62g/cm^3 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 (13.2m9/kg) than in metamorphic rocks (27.4mg/kg) and in igneous rocks (28.7mg/kg). Cation exchange capacity (CEC) was 10.34cmol_c/kg in sedimentary rocks. followed by 12.44cmol_c/kg in metamorphic rocks and 13.24coml_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.
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