Antioxidant Characteristics in the Leaves of 14 Coniferous Trees under Field Conditions

한심희,이재천,이위영,박영기,오창영 한국산림과학회 2006 한국산림과학회지 Vol.95 No.2

We investigated antioxidant capacity in leaves of 14 coniferous tres under field conditions. Wetree species with the best antioxidant systems using their characteristics. The antioxidant capacity of 14coniferous tres was divided into three groups. First group was Thuja orientalis and Chamaecyparis obtusaand those species had the highest content of β-carotene and xanthophyll. Second group, C. obtusa andJuniperus chinensis, used antioxidant enzymes to mitigate stres. C. obtusa represented high activity atsuperoxide dismutase (SOD), glutathione reductase (GR), and peroxidase (POD), and J. chinensis exhibitedα-tocopherol. The antioxidant content of T. orientalis was the highest while that of Pinus parviflora andC. obtusa were the lowest. Few species belonged in three groups simultaneously, and most species belongedin at least one or two groups. In sumary, we proposed that C. obtusa and T. orientalis had the highestantioxidant capacity while P. parviflora and P. desiflora for. multicalus had the lowest antioxidant capacity.

Physiological Damages and Biochemical Alleviation to Ozone Toxicity in Five Species of genus Acer

한심희,김두현,이갑연,구자정,김판기 한국산림과학회 2007 한국산림과학회지 Vol.96 No.5

환경오염지에서 생육하는 사방오리나무의 색소함량 및 항산화능력의 계절변화

한심희,이재천,오창영,김종갑,김판기 한국농림기상학회 2006 한국농림기상학회지 Vol.8 No.2

오존 처리하에서 5개 조경수목의 광합성 특성 변화

한심희,이재천,오창영 한국임학회 2006 한국임학회 학술발표논문집 Vol.2006 No.-

폐석지내 강광 스트레스에 대한 사방오리나무 잎의 항산화 보호

한심희,이재천,이위영,박영기,오창영,김종갑 한국임학회 2006 한국임학회 정기학술발표논문집 Vol.2006 No.-

산성우에 의한 토양산성화에 대한 4개 수종의 완충능력과 수관으로부터 양료 용탈 변이

한심희,이경준 ( Sim Hee Han,Kyung Joon Lee ) 한국산림과학회 1997 한국산림과학회지 Vol.86 No.3

The objective of this study was to compare acid-neutralizing and buffering capacity of four tree species against soil acidification by acid rain. About 30-year-old forests composed of Pinus rigida, Alnus hirsuta, Quercus mongolica, and Liriodendron tulipifera in a provincial experimental forest located 151an east from Banwol Industrial Complex in Kyonggido were used in this study. Incident precipitation, throughfall and stemflow, and soil samples were collected from May to September, 1996 to analyze their pH and canon concentrations. Internal leaf pH, external acid neutralizing capacity(ENC), and buffering capacity index(BCI) of leaves were also determined. The incident precipitation showed an average pH of 4.56, with the percentage of acid rain incidents being 74%. The average soil pH of the study area was 4.15. The pH of throughfall and stemflow in all four species was higher than that of precipitation except that of the stemflow of Pinus rigida which showeed a pH of 3.73. The throughfall of Liriodendron tulipifera showed the highest pH of 5.38. The pH of throughfall and stemflow showed a positive correlation and no correlation, respectively, with precipitations. The most abundant cation in precipitation was Ca. The canon concentraions in throughfall and stemflow decreased in the following order of K, Na, Ca, and Mg. Cation concentrations in stemflow were highest in Lirioendron tulipifera and lowest in Pines rigida. Nutrient leaching from above ground increased with decreasing pH of precipitation. The pH of stemflow showed a positive correlation with ENC and BCI. The highest values in ENC, BCI, soil pH, and soil canon concentrations were observed in Liriodendron tulipifera, while the lowest values were obtained in Pinus rigida, It was concluded that Liriodendron tulipifera had highest neutralizing capacity against acid rain, while Pines rigida had the lowest capacity and even promoted acidification of soil.

기획시리즈 - 사라져가는 우리나라특산식물 '산개나리'

한심희,Han, Sim-Hui 한국조경수협회 2011 造景樹 Vol.121 No.-

아연폐광산(亞鉛廢鑛山) 주변(周邊) 토양(土壤)의 중금속(重金屬) (Cd, Cu, Zn, Pb) 오염(汚染)에 따른 5개(個) 수종(樹種)의 부위별(部位別) 중금속(重金屬) 축적(蓄積)

한심희,현정오,이경준,조덕현,Han, Sim Hee,Hyun, Jung Oh,Lee, Kyung Joon,Cho, Duck Hyun 한국산림과학회 1998 한국산림과학회지 Vol.87 No.3

본 연구는 폐광지 주변에서의 토양내 중금속(Cd, Cu, Zn, Pb) 오염 정도와 토양내 중금속 농도와 수목내 중금속 축적 농도와의 관계를 규명하여, 오염지역의 정화에 수목을 이용할 수 있는지를 확인하는 것을 목적으로 수행하였다. 경기도 화성군에 위치한 삼보광산과 광명시에 있는 가학광산에서 1997년 4월부터 9월에 걸쳐 토양 시료와 주변의 난티잎개암나무, 리기다소나무, 현사시나무, 진달래, 아까시나무를 채취하여 중금속 농도를 측정하였다. 두 광산지역의 광구에서 500m 이내 주변 토양은 중금속에 의한 오염 정도가 28~143ppm으로써 심각하지 않았으나, Zn(143ppm), Pb(97ppm)과 같은 중금속 농도는 독성을 나타낼 수 있는 수준이었다. 토양내 중금속의 농도는 Zn>Pb>Cu>Cd의 순이었으며, 광구의 중심에서 1.5km 이상 멀어질수록 증금속 농도는 10ppm 이내로 감소하였다. 각 수종별 중금속의 농도는 Pb를 제외하고, 현사시나무에서 가장 높았으며, 특히 잎에 고농도로 축적되어 있었고, Zn의 경우 91ppm이 검출되었다. 난티잎개암나무의 뿌리에서는 Cu와 Pb의 높은 농도로 검출되었다. 토양의 중금속과 수목 조직내 중금속 농도는 매우 높은 정의 상관을 보여주었으며, 리기다소나무에서 가장 높은 상관계수를 나타냈다. 토양에 대한 수목 조직의 중금속 농도비(Concentration Factors : CF)는 Zn이 가장 높은 값을 보였고 Pb이 가장 낮은 값을 보여주었다. 현사시나무는 CF값이 가장 높아서 중금속을 가장 많이 축적하고 있었다. 특히 토양의 중금속 농도에 대한 식물체의 농도비가 가장 높은 현사시나무는 중금속의 흡수 능력이 뛰어나 중금속 오염지에서 정화식물로 이용할 수 있으며, 리기다소나무는 토양의 오염 정도를 가장 잘 반영하는 수종으로 판단된다. This study was conducted to evaluate heavy metal concentrations(Cd, Cu, Z, and Pb) in the soil of two zinc mines and to correlate heavy metal contents between the soils and trees growing near the mines. Soils and leaves, stems, and roots of five tree species(Corylus heterophylla, Pinus rigida. Populus alba${\times}$glandulosa, Rhododendron mucronulatum, and Robinia pseudoacacia) were collected from Sambo Zinc Mine located in Hwasung and Gahak Zinc Mine in Kwangmyung city in Kyonggido. Soils near two zinc mines were not seriously contaminated by heavy metals, but Zn and Pb concentrations were at toxic level. The heavy metal concentration in soils decreased in the order of Zn, Pb, Cu, and Cd, and decreased with increasing distance from zinc mining sites. Among the five tree species, Populus alba ${\times}$ glandulosa showed the highest heavy metal concentrations in the tissue except for Pb. Particulars, leaves of the species contained the high concentrations of heavy metals to reach the maximum of 91ppm Zn. The roots of Corylus heterophylla contained high concentrations of Cu and Pb. The order of heavy metal concentrations in the tree species was Zn, Cu, Pb and Cd. The concentration of heavy metals in the tree tissues showed a positive correlation with that in soil in which trees are growing. The ratio of heavy metal concentration of trees to that of soils(concentration factor : CF) was highest in Zn and lowest in Pb. Populus alba${\times}$glandulosa had the highest CF value among the five tree species. It was concluded that Populus alba${\times}$glandulosa, based on the high metal uptake ability, could be used for decontaminating of heavy metals from contaminated soils, and Pinus rigida could be used to reflect the level of contamination in soils.

수목에서 나타나는 오존 피해 증상들

한심희 한국수목보호연구회 2007 수목보호 Vol.12 No.-

Physiological Responses and Phytoextraction Potential of Pinus thunbergii on Cd-contaminated Soil

한심희,김두현,ULTRA VENECIO JR,이재천 한국산림과학회 2010 한국산림과학회지 Vol.99 No.5

We investigated physiological responses and phytoextraction ability of Pinus thunbergii in cadmium contaminated soil as part of our efforts in identifying plant materials for the restoration and revegetation of forest soil contaminated by heavy metals. Thirty seedlings (ten per treatment) were assigned to three treatments (control, 0.3 and 0.6 mM CdSO4 solution) at first year experiment. At second year, ten seedlings per treatment treated with Cd during the first year experiment were divided by two groups (no Cd-treated and consecutive Cd-treated group). At first experiment, photosynthetic pigment content, and superoxide dismutase (SOD) and glutathione reductase (GR) activities have significantly reduced by Cd application, and the reduction rate was increased much higher as the rate of Cd application increased. On the other hand, thiol and malondialdehyde (MDA) content were significantly increased at the application of 0.6 mM of Cd. At the second year experiment, a general increase in chlorophyll and carotenoid content was observed with Cd treatment while SOD and GR activities showed a relative reduction compared to the control. Similar to the first year measurement, thiol and MDA contents also increased considerably due to Cd treatment. At harvest, dry matter was significantly reduced by Cd treatment especially at the rate of 0.6 mM Cd, but dry yield of P. thunbergii treated with 0.3 mM Cd was less affected and it was comparable with the control seedling. Cadmium concentration in seedling tissues increased with increasing Cd application rate while Cd uptake was higher in seedlings supplied with 0.3 mM Cd, which could be ascribed to their high dry matter. Overall, our study has demonstrated the unique physiological response of P. thunbergii to Cd-prolonged exposure by showing that the changes in photosynthetic pigment content and antioxidative enzyme activities were dependent on the concentration and duration of treatment. In addition, our results have demonstrated the potential of P. thunbergii to withstand up to 0.3 mM Cd (equivalent to cumulative Cd concentration of 134.4 to 268 mg kg−1) without showing growth reduction, hence it might be used for phytoremediation of Cd contaminated areas.