우리나라 사문암토양에서 생육하는 참억새에서의 중금속 거동

김명희,민일식,송석환 中部大學校 自然科學硏究所 1999 自然科學硏究論文集 Vol.8 No.1

우리나라 남한에 분포하는 사문암 지역(광천, 홍성, 백동, 대흥, 유구, 안동, 울산)의 상부토양과 참억새 시료의 중금속 함량을 분석하여 사문암 토양에서의 식물에 의한 중금속 원소의 흡수관계를 조사하였다. 사문암 토양에서 생육하는 참억새의 Ni, Cr, Co 농도는 각각 87-510 ppm, 81-745 ppm, 3.8-44 ppm 였다. 사문암 토양에서 생육하는 참억새에 의하여 흡수된 중금속간의 상호관계에서는 Ni은 Co, Cr, Zn 및 Fe와, Co는 Cr, Zn 및 Fe와 Cr은 Fe와 Zn은 Mo 및 Fe와 상관관계를 보였다. 특히 Ni-Fe, Ni-Co, Co-Fe 간에 높은 상관관계를 나타내었다. 토양의 중금속 함량은 참억새에서보다 높고 참억새 뿌리의 농도가 지상부보다 높았으며 원소별로 토양과 참억새에 의한 원소 함량간에는 Mo를 제외하고는 토양과 식물체 농도간에 상관관계가 나타나지 않았다. This study was conducted to investigate for the behavior of heavy metal in top soil and M. sinensis form the serpentine area(Kwangcheon, Hongseong, Baekdong, Yoogoo, Andong and Ulsan area), South Korea. Nickel, chromium and cobalt concentration in M. sinensis growing on serpentine soils were 87-510ppm, 81-745ppm and 3.8-44ppm, respectively. In the M. sinensis, nickel concentration was correlation with cobalt, chromium, zinc and iron concentration, respectively, cobalt concentration was correlation with chromium, zinc and iron concentration, respectively, whereas chromium concentration was positive relationship with iron. Nickel-iron, nickel-cobalt and cobalt-iron concentration of M. sinensis srowing on serpentine soils showed high significant relationship, the correlation coefficent was higher in above-ground part than root. Most of the heavy metal concentration of M. sinensis were lower than those of soils at most of the sample localities. The heavy metal concentration of M. sinensis had no relationship with those of top soils except molybdenium.

돈육 품질향상을 위한 영양 및 사양관리에 관한 연구

홍경표 中部大學校 自然科學硏究所 1999 自然科學硏究論文集 Vol.8 No.1

Hogs meat quality refers to the appearance of meat especially its colour. its technological properties including waterholding capacity and tissue firmness and its palatability encompassing tendernss, juiciness and flavour. All of these can be modified by making changes to practices in production and during processing. In this research emphasis give to aspects of quality which can be controlled by dietary changes on the farm that is tenderness, flavour, colour and fat firmness. The information presented here shows that specific changes to diets or feeding systems can have important effects on meat quality, particularly tenderness, flavour, colour, and waterholding capacity. It is well know that diet also affects carcass composition. All this information can be included in 'blueprints' for improved quality such as have been promoted in the UK by the Meat and livestock commission. These have been adopted by supermakets, processors and producers working together to ensure higher levels of overall quality for the consumer.

액화목재의 염소산염계 탈색처리

장준복,도금현 중부대학교 자연과학연구소 2001 自然科學硏究論文集 Vol.10 No.1

Liquefaction of the korean pine(Pinus koraiensis) was carried out in the presence of polyalcohols using sulfuric acid as a catalyst at 180℃, for 90 minutes. Liquefied wood was a dark brown color, many methods were tried to improve its color. The purpose of this study was improved the liquefied wood color. Liquefied wood were treated with sodium hypochlorite and sodium chlorite. The results of this work were as follows; sodium hypochlorites treatment of liquefied wood was no effects on improving of its color. In the sodium chlorites treatment of liquefied wood was effects on improving of its color. The effective treatment condition of liquefied wood for decoloring was at room temperature for 1 hour, sodium chlorite 2g, 3 times.

경기도 가평 사문암지역의 암석·토양 및 식물체내 몇가지 원소쌍의 동태

민일식,김명희,김연태 中部大學校 自然科學硏究所 2002 自然科學硏究論文集 Vol.11 No.2

경기도 가평군 일원에 분포하는 사문암지역 및 주변에 산재하는 각섬석 편암, 편마암등의 암석·토양과 이 지역에 생육하는 식물체내에 함유되어 있는 주요 원소의 몇가지 원소쌍 동태를 분석하여 국내 다른 사문암 토양 및 식생과 비교 연구하고자 실시하였다. 모암별 암석간의 Mg 함량 및 Mg/(Fe+Mg)100 비는 사문암> 각섬석편암> 편마암 순으로 사문암의 특성을 잘 나타내고 있다. 풍화토양의 경우 사문암 및 각섬석편암 풍화토양은 Mg 함량이 높았고, 편마암은 Fe 함량이 높아 암석의 경우와는 다른 경향을 보이고 있다. 두 원소의 상대적인 비가 각섬석편암에서 Mg 함량이 높기 때문에 다른 결과를 보이는 것인데, 이는 Mg가 암석으로부터 풍화생성물에 의한 가동률이 Fe에 비해 높아 토양에서 쉽게 거동하기 때문이다. 모암별 암석 및 풍화토양에서의 Ca 함량은 각섬석편암> 사문암> 편마암 순이었고, Mg 함량은 사문암> 각섬석편암> 편마암 순이었다. 각 식물체에서 Fe와 Mg 함량은 각섬석편암지역 및 편마암지역에 분포하는 쑥을 제외하고, 전체 4종의 식물체에서 모두 사문암지역에서 생육하는 경우에 공히 높게 나타났다. 이들 두 원소의 상대적인 Mg/(Fe+Mg)100 비는 참억새에서 사문암 74.5∼79.1> 각섬석편암 68.4> 편마암 50.9 순이었고, 쑥은 사문암 67.9∼83.1> 각섬석편암 47.0> 편마암 34.7 순이었고, 산딸기나무는 각섬석편암 86.5> 사문암 81.8∼82.1> 편마암 71.6 순이었고, 소나무는 사문암 80.0> 편마암 78.7 순이었다. 산딸기나무의 경우 각섬석편암지역에서 Mg의 높은 가동화 때문에 사문암지역 보다 높은 것을 제외하고 전체 전이원소에서 상대적인 비는 사문암에서 모두 높게 나타나고 있어, 이는 모암과 풍화토양과 마찬가지로 마그마의 분화과정에서 특징적으로 나타나는 사문암의 특성을 잘 시사하고 있다고 생각된다. 참억새의 경우 Ca 함량은 편마암 3.41%> 각섬석편암 3.25%> 사문암 1.36∼2.66% 순으로 나타났고, Mg 함량은 사문암 8.68∼9.85%> 각섬석편암 6.97%> 편마암 2.31%이었다. 이 두원소들의 상대적인 Ca/Mg 비는 편마암 1.4778> 각섬석편암 0.4671> 사문암 0.1380∼0.3062 순이었다. 쑥의 경우 Ca 함량은 사문암 3.90∼4.29%> 각섬석편암 3.90%=편마암 3.90% 순이었고, Mg 함량은 사문암 6.70∼8.51%> 각섬석편암 2.97%> 편마암 1.79%이었다. 이 두원소들의 상대적인 Ca/Mg 비는 편마암 2.1764> 각섬석편암 1.3120> 사문암 0.5047∼0.8670 순이었다. 산딸기나무의 경우 Ca 함량은 각섬석편암 15.69%> 사문암 3.78∼14.03%> 편마암 12.64% 순이었고, Mg 함량은 사문암 12.15∼15.19%> 각섬석편암 8.58%> 편마암 4.93%이었다. 이 두원소들의 상대적인 Ca/Mg 비는 편마암 2.5646> 각섬석편암 1.8227> 사문암 0.2489∼l.1543 순이었다. 소나무의 경우 Ca 함량은 편마암 17.62%> 사문암 3.15% 순이었고, Mg 함량은 사문암 13.69%> 편마암 2.82%이었다. 이 두원소들의 상대적인 Ca/Mg 비는 편마암 6.2552> 사문암 0.2300 순이었다. 이를 전체적으로 보면 Ca 함량은 사문암에서 다른 모암에 비해 낮고 Mg 함량은 반대로 사문암에서 높기 때문에 그 상대적인 비가 편마암> 각섬석편암> 사문암으로 순서가 모두 일정하게 나타난 것을 알 수 있다. This study has been made to investigate the behavior of several paired element concentrations from the rocks, soils and the growing plants Gapyeong Serpentinite areas, Gyeonggi-Do. The parent rocks were collected by serpentinite(SP), hornblende schist(HS) and gneiss(GN), and the plants were Miscanthus sinensis(MS), Artemisia vulgaris(AV), Rubus crataegifolius(RC) and Pinus densiflora(PD). The Mg concentrations and Mg/(Fe+Mg)100 ratio among the parent rocks are ranked SP> HS> GN, and these results indicate the serpentine characteristics. Mg concentrations of the Sp and the HS weathered soils are higher than the GN, and Fe concentrations of the GN are higher than any other soil types, which indicates the different trends. Ca concentrations of the rocks and soils are ranked HS> SP> GN and Mg concentrations SP> HS> GN. Fe and Mg concentrations of the AV, RC and PD in the SP are higher than any other soil types, except of MS. The Mg/(Fe+Mg)100 ratios are ranked the SP 74.5∼79.1> HS 68.4> GN 50.9 of the AV, the SP 67.9∼83.1> HS 47.0> GN 34.7 of the MS, the HS 86.5> SP 81.8∼82.1> GN 71.6 of the RC and the SP 80.0> GN 78.7 of the PD. Ca concentrations of the AV are the GN 3.41%> HS 3.25%> SP 1.36∼2.66% and Mg concentrations are the SP 8.68∼9.85%> HS 6.97%> GN 2.31%. The Ca/Mg ratios are the GN 1.4778> HS 0.4671> SP 0.1380∼0.3062. Ca concentrations of the MS are the SP 3.90∼4.29%> HS 3.90%=GN 3.90%, Mg concentrations are the SP 6.70∼8.51%> HS 2.97%> GN 1.79%. The Ca/Mg ratios are the GN 2.1764) HS 1.3120> SP 0.5047∼0.8670. Ca concentrations of the RC are the HS 15.69%> SP 3.78∼14.03%> GN 12.64%, Mg concentrations are the SP 12.15∼15.19%> HS 8.58%> GN 4.93%. The ratios Ca/Mg are the GN 2.5646> HS 1.8277> SP 0.2489∼1.1543. Ca concentrations of the PD are the GN 17.62%> SP 3.15%, Mg concentrations are the SP 13.69%> GN 2.82%. The Ca/Mg ratios are the GN 6.2552> SP 0.2300.

목탄 및 목초액 처리가 식물생장 및 토양에 미치는 영향

민일식,오기환 중부대학교 자연과학연구소 2000 自然科學硏究論文集 Vol.9 No.1

A research efforts have been done for analyzing the compositions of wood vinegar products using the domestic thinning timber, and the changes of plant growth and soil response treated by the charcoal and wood vinegar with several levels. These results will induce the decrease of the bases for application to arable lands from high alkaline soils of equipped greenhouses or reclaimed lands. For these purposes, the growth of perilla(Perilla frutescens var. japonica) and chemical soil properties on the pots filled with granitic weathering soils, which were divided by uncontaminated and contaminated (200mM of Ca(Na3)2, KNO3, K3PO4) soils, were analyzed at Choobu-myun Geumsan, Chungnam, from June to August, 2000. The biotitic granitic weathering soils used for experiments had the sandy loam. Soil pH changes had no differences by levels of wood vinegar solutions between the uncontaminated and contaminated soils, however, soil pHs treated with the charcoal were increased. The total nitrogen content of the contaminated soils were higher than those of uncontaminated soils, but there were little differences within treatments by the charcoal and wood vinegar. The organic matter content of soils treated with the charcoal were greatly higher than those of untreated with the charcoal in the uncontaminated and contaminated soils. The effective phosphate content had a significant differences with the treatments by charcoal in the uncontaminated and contaminated soils. CEC(cation exchange capacities) of the uncontaminated soils with high levels of wood vinegar treated/untreated with charcoal were higher than those of low levels and then of the contaminated soils with high levels of wood vinegar treated with charcoal were the highest. The soil cation(K+, Ca2+, Mg2+, Na+) content of both the uncontaminated and contaminated soils treated with the charcoal were higher than those untreated with the charcoal, because of ionic content adsorbed on the charcoal faces. Especially, K+ were plentifully dissolved in the contaminated soils with high levels of wood vinegar and then were induced of high basic ion activities. The 46 kinds of organic compounds were detected in the wood vinegar(cryptomeria) used by these experiments. The germination rate of perilla seeds had no significant differences between with treatments by charcoal, The early shoot growth of perilla, during 3 weeks after the germinations, on the uncontaminated soils were generally favorable compared with those on the contaminated soils, due to the treatment by charcoal. The whole shoot elongations of perilla, on the case of the uncontaminated soils with untreated charcoal and the contaminated soils, the growth on the high levels of wood vinegar with the charcoal were well, in a way, the greatest growth were come out on the uncontaminated soils treated by low levels of wood vinegar with the charcoal.

액상석회비료의 수관살포가 단감 과실의 무기성분, 품질 및 생리장해과에 미치는 영향

문병우,성숙경,장경호 중부대학교 자연과학연구소 2000 自然科學硏究論文集 Vol.9 No.1

This experiment was carried out to investigate the effects of foliar spray of liquid calcium fertilizer and CaCO3 during the growing season on mineral nutrients, fruit quality and physiological disorder of non-astringent persimmon. Calcium contents of leaf, fruit flesh and peel were increased by foliar spray of liquid calcium fertilizer manufactured from oyster shell, but CaCO3 foliar spray had no effect. In persimmon treated both chemicals, K contents of leaves were decreased and those of flesh were increased, but those of peel not changed. The contents of T-N, P, and Mg in all investigating parts were not affected with treatment. The fruit firmness of persimmons treated with liquid calcium fertilizer was higher than that of other fruits at harvest and after 56 days of storage at 25℃. The rates induced skin blackening and green spot fruits were decreased by foliar spray of liquid calcium fertilizer. The Ca contents in leaf and peel of persimmons induced green spot fruits were lower than those of normal persimmons, but the Mn contents were higher.

한ㆍ일 양국의 식중독 발생 현황 : 1999년 결과를 중심으로

김성환,김용휘,박미아,김명희,임병순 중부대학교 자연과학연구소 2000 自然科學硏究論文集 Vol.9 No.1

This paper is for review the situation of the foodborne disease in 1999 between Korea and Japan. The total cases of foodborne disease in korea and japan are 174 cases and 2,697 case, respectively. In two countries, foodborne disease are common in summer. The main food related to foodborne disease are fish and fishery products in two countries. In Japan, foodborne disease have been broken out in restaurants, except the reason were unknown. Home made food is also the main cause of foodborne disease. It was found that Salmonella is the most dangerous microorganism, which related to the foodborne disease. and the second cause was Vibrio parahaemolyticus.. Because of the similarity of food habits, two countries have same reason of foodborne disease.

파검은무늬병균에 대한 지모, 황백나무 및 황련추출액의 항균활성

도은수 中部大學校 自然科學硏究所 1998 自然科學硏究論文集 Vol.7 No.1

3종의 약용식물 추출액을 공시하여 Alternaria porri에 대해 항균 활성 검정 및 파 검은무늬병에 대한 방제 효과를 조사한 결과는 다음과 같다. 1. Aasphodeloides의 물추출액은 추출원액처리시에도 거의 항균활성은 없었고, C.japonica와 P.amurense의 물추출액은 50%의 희석농도까지는 항균활성을 가지는 것으로 나타났다. A.asphodeloides의 MeOH 추출액은 배지내의 희석농도가 1%일때 42.9% P.amurense의 MeOH 추출액은 0.2%의 희석농도에서 66.1%의 억제효과가 있었으며, C.japonica의 추출액은 0.01%의 희석농도에서도 59.2%의 억제효과가 있었다. 2. 3가지 추출액 모두 A.porri의 분생포자발아에 대한 억제효과는 매우 낮았으나, 추출액 처리시에 발아관의 신장은 상당히 억제되는 경향이었다. 3. Methyl alcohol로 추출한 식물체의 조추출액이 물을 용매로 하여 상온 추출하거나, 끓여서 추출한 조추출액 보다 항균활성이 우수한 것으로 나타났다. 4. A.asphodeloides 추출액의 경우 저장기간과 관계없이 항균활성이 낮았고, P.amurense와 C.japonica의 추출액은 저장기간이 길어짐에 따라 항균활성이 감소하는 경향이었다. 5. A.asphodeloides의 추출액은 방제효과가 낮았으나, P.amurense 및 C.japonica는 추출원액을 처리했을 때 100%의 방제효과가 있었다. 0.2%의 희석농도에서도 각각 75.0% 및 87.5%의 방제효과가 있었고, 특히 C.japonica의 추출액은 0.05%의 희석농도에서도 50.0%의 방제효과가 있어 3가지 추출액 중 가장 효과가 있었다. 6. 파잎에는 추출액에 의한 어떠한 약해의 증상도 나타나지 않았다. Crude extracts from three medicinal plants were evaluated for their antifungal activity against Alternaria porri. In addition, the extracts were applied to welsh-onion to investigate the usefulness for welsh-onion alternaria leaf spot control. The results were summarized as follows; Of the crude extracts, three medicinal plants it of A. asphodeloides was not showed antifungal activity, but them of C.japonica and P.amurense exhibited strong antifungal activity against A.porri. Conidiosporial germination of A.porri was not inhibited but elongation of germ tube was inhibited by the application of three medicinal plant extracts. Methyl alcohol extract had better antifungal activity than water extract at either room temperature or boiling condition. Antifungal activity of three medicinal plant crude extracts against A.porri gradually was decreased with prolonged storage. Control effect of crude extract of P.amurense and C.japonica was excellent, they indicated perfect conrol value at 1.0% concentration, and P.amurense showed 75.0%, and C.japonica 87.5% control value at 0.2% concentration, respectively, and C.japonica showed 50.0% control value at 0.05% concentration against welsh-onion alternaria leaf spot(A.porri). Extract of C.japonica of to the three medicinal plants was superior the others in control effect against welsh-onion altenaria leaf spot. Phytotoxic symptoms were not observed in welsh-onion leaves with exogenou foliage application of the three medicinal plants crude extract.

경북 안동 사문암지역 토양의 전이원소 및 알칼리토금속 원소 함량

민일식,김명희,송석환 中部大學校 自然科學硏究所 1998 自然科學硏究論文集 Vol.7 No.1

본 연구는 경북 안동 사문암지역의 토양내전이원소 및 알칼리토금속 원소의 농도를 이와 인접해 있는 변성암토양 및 퇴적암토양과 비교하여 조사한 결과는 다음과 같다. 1. 사문암 토양의 특성을 나타내는데 가장 중요한 원소인 Ni의 경우 사문암 풍화토 및 사문암 산림토양에서 각가 1326ppm과 1226ppm 이었으며, 이와 비교하여 변성암 �G 퇴적암 풍화토양은 각각 91ppm과 14ppm으로 지역간의 차이가 명확하였다. 2. Co 함량은 사문암 풍화토 및 사문암 산림토양이 각각 92ppm과 124ppm으로 산림이 조성된 지역내에서 함량이 다소 높았으며, 이에 비해 변성암 토양과 퇴적암 토양은 각각 24ppm 및 9ppm이었다. 3. Cr 함량은 사문암 풍화토양에 220ppm, 사문암 산림토양에 540ppm으로 변성암 토양(179ppm)과 퇴적암 토양(37ppm)에 비해 매우 높았다. 4. Fe 함량은 사문암 풍화토양가 5.11%이고 사문암 산림토양은 7.10%로 나타났으며, 이와 비교하여 변성암 토양은 2.28% 및 퇴적암 토양은 2.61%로 사문암지역 보다 모두 낮은 함량을 보였다. 5. 사문암내 전이원소의 변화는 Ni을 제외하고 Co, Cr, Fe 원소 함량이 모두 산림토양에서 높았는데, 이는 실제로 모재로부터 토양이 풍화되는 과정에서 식생의 형성 및 발달이 토양의 특성에 영향을 죽 되며, 특히 강우에 의한 용탈과 식생층의 형성으로 인한 양료의 가용성이 높아져 결국 여러 가지 이온의 용해가 진행된 때문으로 사료된다. 6. Mg 함량은 사문안 풍화토양에서 9.71% 및 사문안 산림토양에서 8.93%이었고, 변성암 및 퇴적암 풍화토양에서 각각 2.48% 및 0.16%이었다. 7. Ca는 사문암 풍화토양에서 0.47%와 사문암 산림토양에서 0.10%이었으며, 변성암 및 퇴적암 토양은 각각 0.64% 및 0.06%로 나타났는데, 여러 기원에서 유래된 퇴적암지역을 제외하고 변성암지역에 비해 사문암지역의 Ca 함량이 낮았다. 8. Ca/Mg 비율은 사문암지역에서 식물의 생육을 제한하는 중요한 요인으로 사문암 토양의 경우 그 비율이 낮은데, 본 조사지역은 사문암 풍화토양 및 사문암 신림토양은 0.0484와 0.0112로 변성암 토양(0.2580) 및 퇴적암 토양(0.3750)에 비해 매우 낮았다. This research has been done for transitional and alkali earth elemental concentrations of serpentine, metamorphic and sedimentary soils in Andong, Kyungpook. Ni concentrations, to be the most important element indicated for serpentine soil characteristics, were 1326ppm and 1226ppm in serpentine exposed rocky soil(RS) and forest soil(FS), respectively. In comparison with serpentine, it clearly differed from the concentrations by parent rocks, that those of metamorphic(MS) and sedimentary soil(SS) were 91ppm and 14ppm. Co concentrations had much higher in serpentine soils, RS(92ppm) and FS(124ppm), than those in MS(24ppm) and ss(9ppm). In serpentine soils, such as RS(220ppm) and FS(540ppm), Cr concentrations had much higher than those in MS(179ppm) and SS(37ppm). Fe concentrations in serpentine soils were 5.11% in RS and 7.10% in Fs, and in MS and SS were 2.28% and 2.61%, respectively. The transitional elemental concentrations, such as Co, Cr and Fe except Ni, were generally higher in serpentine soils than those of metamorphic and sedimentary. soils. It suggested that formation and development of forest vegetation during weathering from parent materials influenced soil properties. Especially an increase of the nutriental solubility due to leaching by precipitation and formation of vegetation proceeded the mobility of various ions. Mg concentrations were 0.47% in RS, 0.10% in FS, 0.64% in SS. In the contrast, Ca concentrations had lower in serpentine soils such as 0.47% in RS than those in MS(0.64%), except sedimentary soils(0.06%) derived various forming origins. the Ca/Mg ratios, which are the important factor controlling the plant growth and generally represent low values in serpentine soils, were lower 0.0484 in RS and 0.0112 in FS than 0.2580 in MS and 0.3750 in SS.

모암별 토양의 인공산성우 처리에 대한 완충능

민일식,김명희,송석환 中部大學校 自然科學硏究所 1999 自然科學硏究論文集 Vol.8 No.1

우리나라에 분포하고 있는 대표적인 모암별 풍화토양를 대상으로 대기오염 및 산성우에 대한 토양완충능을 조사하기 위하여 인공산성우를 투입하여 용탈용액의 토양산도 및 화학성분의 변화를 측정한 결과는 다음과 같다. 1. 모암별 풍화토양의 pH는 산성암이 풍화된 화강암토양 및 유문암토양은 pH 5.02 및 5.95이었고, 염기성암이 풍화된 반려암토양 및 현무암토양은 pH 6.52 및 7.57이었으며, 초염기성암이 풍화된 사문암토양은 광천 및 홍성사문암이 pH 8.90 및 8.89이었고, 석회암 풍화토양은 pH 7.84로 대부분 전형적인 모암별 풍화토양의 산도특성을 나타내고 있었다. 2. 조제된 인공산성우를 500ml 처리한 후 토양완충능에 의한 pH의 평균변화는 화강암토양은 pH 5.0, 4.0 및 3.0 처리구에서 각각 pH 5.73(SD: 0.42), pH 5.00(0.12), pH 4.41(0.35)이었고, 유문암토양은 pH 6.19(0.15), pH 5.99(0.24), pH 5.57(0.46)이었다. 반려암토양은 pH 6.31(0.11), pH 6.04(0.21), pH 5.86(0.26)이었고, 현무암토양은 pH 7.02(0.24), pH 6.85(0.18), pH 6.56(0.33)이었다. 사문암토양은 광천 및 홍성사문암토양에서 각각 pH 8.31(0.14), pH 8.26(0.18), pH 7.71(0.52) 및 pH 8.29(0.30), pH 8.24(0.15), pH 7.96(0.31)이었고, 석회암토양은 pH 7.55(0.31), pH 7.46(0.20), pH 6.79(0.36)으로 나타났다. 전체적으로 화산암토양이 심성암토양 보다 완충용액의 pH가 높았으며, 산성암인 화강암토양이 다른 토양에 비해 산성용액에 대한 반응이 가장 크게 나타났다. 3. 인공산성우를 pH 수준별로 처리한 후 100ml씩 첨가하여 수집된 토양용탈용액의 pH 는 인공산성우의 투입량이 증가할수록 전체 토양에서 점차 감소하는 경향을 나타내고 있다. 4. 모암별 풍화토양의 화학성분은 양이온함량, CEC, 전기전도도 및 전질소함량는 화산암인 유문암토양과 현무암토양이 심성암인 화강암토양과 반려암토양 보다 더 높게 나타났다. 인산 함량은 인회석의 함유량에 따라 크게 영향을 받으며 유문암토양과 반려암토양에서 높게 나타났다. A1 함량은 심성암인 화강암토양과 반려암토양에서 높았는데, 이는 화강암의 경우 높은 석영 함량에 의하여, 반려암토양에서는 흑운모와 사장석내 함유된 A1의 영향으로 높게 나타났다. To investigate the weathering soil buffering capacities of the artificial acidic precipitation, the weathering soils and their leachate solutions were sampled from the host rocks (granite:GR, rhyolite:RH, gabbro:GA, basalt:BA, two serpentmite as Kwangcheon:SE1, Hongseong:SE2 and limestone:LI distributed in Korea) and analyzed for pH and chemical properties. In the soil pH of the GR and RH, the acidic rocks, were 50.2 and 5.95, respectively. And the GA and BA, basic rocks, were 6.52 and 7.57. The SE1 and SE2 were 8.90 and 8.89. White the LI was 7.84. These results means the typical soil pH properties by host rocks. After the artifical acidic precipication input 500ml, the average change of soil leachate solutions treated by pH levels(pH 5.0, 4.0 and 3.0), were pH 5.73(SD: 0.42), pH 5.00(0.12) an pH 4.40(0.35), respectively, in the GR soil, and pH 6.19(0.15), 5.99(0.24) and 5.57(0.46) in the RH. The GA were pH 6.31(0.11), 6.04(0.21) and 5.86(0.26), the BA were pH 7.05(0.24), 6.85(0.18) and 6.56(0.33) and the SE1 were pH 8.31(0.14), 8.26(0.18) and 7.71(0.52). As well as the SE2 were pH 8.29(0.30), 8.24(0.15) and 7.96(0.31). The LI were pH 7.55(0.31), 7.46(0.20) and 6.79(0.36). The soil leachate pHs from volcanic rocks were higher than those from the plutonic rocks and the GR soil showed greater response than other soils. With increasing 100ml each input-solution. the soil leachate pHs were mainly decreased. The cation concentrations, CEC, EC and total nitrogen concentrations of the RH and BA soils, the volcanic rocks, were higher than those of the GR and GA soil, the plutonic rocks. On the contrary, the A1 concentrations of the GR and GA soils were higher than those of the RH and BA soils, partly because of high quartz content in the GR and A1 content in thr biotite and plagioclase in the GA.