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RISS 인기검색어
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- 저자 : 정진현(Jin-heon Jeong) (검색결과 11 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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김춘식(Choon Sig Kim),유장환(Jung Hwan Yoo),변재경(Jae Kyoung Byun),정진현(Jin Heon Jeong),이봉수(Bong Soo Lee) 한국산림과학회 1999 한국산림과학회지 Vol.88 No.1
Distribution of heavy metal (Zn, Pb, Cu, Cd) concentrations within forest soils was investigated in Mts. Surak and Bulam around the outskirt area, and Mts. Bukak and Inwang around the downtown area of Seoul. Metal concentrations in these soils were higher in the A horizons than in the B horizons. The mean concentrations of Zn, Pb, Cu, and Cd in the A horizons were 4.39 ㎎/㎏, 9.09 ㎎/㎏, 1.67 ㎎/㎏, and 0.03 ㎎/㎏, respectively. The concentrations in the B horizons were 2.18 ㎎/㎏ in Zn, 5.74 ㎎/㎏ in Pb, 0.55 ㎎/㎏ in Cu, and 0.01 ㎎/㎏ in Cd, respectively. With positive correlation among the metal concentrations, Zn, Pb, and Cu concentrations in the A horizon were positively correlated with soil organic matter contents (r=0.39∼0.83, p$lt;0.01), while Pb and Cu concentrations were negatively correlated with soil pH (r=-0.53∼0.59, p$lt;0.01). The results suggest that the metals in forest soils have accumulated more in the downtown than in the outskirt areas.
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반월공단지역의 잣나무 및 리기다소나무의 생장과 광합성 특성
이충화(Choong Hwa Lee),최동수(Dongsu Choi),이승우(Seung-Woo Lee),김은영(Eun-Young Kim),진현오(Hyun-O Jin),정진현(Jin-Heon Jeong),이천용(Chun-Yong Lee),오정수(Jeong-Soo Oh) 한국산림바이오에너지학회 2004 산림바이오에너지 Vol.23 No.1
본 연구의 목적은 현재 산림쇠퇴 징후가 나타나고 있는 반월공단지역에 식재되어 있는 잣나무와 리기다소나무의 생장저하 실태와 광합성 특성을 밝히는데 있다. 이를 위해 안산시 전망대공원에 피해구를, 경기도 광주시에 소재하고 있는 경희대학교 연습림에 대조구를 선정하여 인공식재된 약 10년생의 잣나무와 리기다소나무 2수종을 비교하였다.<br/> 잣나무 및 리기다소나무 2수종 모두 피해구에서 생장량이 감소하였으며, 침엽의 잔존율도 저하하였다. 또한 2수종 모두 피해구에서 대조구에 비하여 순광합성속도가 저하하였고, 광-광합성곡선의 초기기울기인 양자수율도 저하하였다. 클로로필 a+b, b의 함량도 피해구에서 감소하였으며, 이 결과는 침엽의 연령이 증가함에 따라서 집광운반능력이 낮아져 침엽의 잔존율이 낮아지는 결과를 초래하였다고 생각된다. 이상의 결과로부터 최근 대기오염이 심한 반월공단지역에서 생육하고 있는 잣나무 및 리기다소나무의 생장감소 원인은 침엽의 클로로필 함량이 광화학계의 활성을 저하시켜 광합성 능력이 감소되어 최종적으로 생장감소를 초래한 것으로 판단된다. This study was performed to investigate the growth and photosynthetic rate of ten-years old Pinus koraiensis and Pinus rigida in Banwol industrial region comparing with those of the control site in Gwangju, Gyeonggi Province. Surface soil of the damaged in pH 4.2 was more acidic than control site in pH 4.8, assuming the accelerated soil deterioration by acid deposition.<br/> The shoot growth, needle survival rate and net photosynthetic rate of P. koraiensis and P. rigida at the damaged site were lower than at the control site. In addition, the quantum yield and chlorophyll a+b and b contents reduced in damaged treatment. These results suggest that an inhibition of photochemical reaction of P. koraiensis and P. rigida at the damaged site of Banwol industrial region could be attributed to complexly influence of atmospheric pollution and soil acidification.
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