森林 休養機能 增進 方案 : 月岳山 國立公園을 中心으로

李寬郁,李萬雨 충북대학교 농업과학기술연구소 1991 農業科學硏究 Vol.9 No.1

The main concern of this study is to promote recreational function of forest which was concerned recently increasing in forestry. The research site was selected in Woraksan National Park, a large scale of forest resreation site. This study has three main objectives as follows. First, to establish rational management objectives coping with multiformity of visitors. Second, to clear up any socioeconomic causes affecting visitors participating forest recreation demand. Third, to grasp preference of any social rung about forest recreation facility and give higher opportunity of forest recreation. The questionnaire survey was performed by four trained interviewers at the four research site (Tokchukol, Water mill, Pallangso, Mansu valley and Miruksaji) for nine days from August 10 to August 18, 1990. Main results obtained in this study were as follows ; 1.Visitor's characteristics in socioeconomics: In aspect of sex of respondents, males outnumbered females. The majority of visitors came from the Chungbuk and Metropolitian area. Educational levels were generally high. Persons in clerical and technical occupations and students were approximately in place. 2.The expenditure of forest recreation: Most of visitors expended ten thousand won and less for expenditure of forest recreation. 3.Visitor's attitude: The visitor's motives were found to deviate from the daily routine as well as to be in national environments. Most of them visited Woraksan National Park for the first time. The most crowded place was found to be Mansu valley and Miruksaji area. 4.Visitor's satisfaction: Most of visitors were satisfied which forest condition and national environments on the country, they were dissatisfied with campground, picnic land, watebasket, toilet and drinking fountain, etc. 5.Visitor's using pattern: Most visitors were in family group. Main means of transportation were bus and private car. 6.Visitor's preference: Preference of visitors about forest recreation facility was shown walk, campground, path up a mountain, natural trail facility, natural studying site, etc in order.

사과園土壤의 鑛物學的 特性에 關한 硏究

李萬精 대구효성 가톨릭 대학교 1975 연구논문집 Vol.16 No.1

The mineralogical studies of the dleven soil samples derives from granite, granodiorite, diorite, arkose sandstone and tetiary shle, taken from apple orchards in the province of Kyungsangbukdo, Korea are made to investigate the relationships among the physical and chemical characteristics, mineral weathering, soil forming processes and mineralogical composition. The fine sand frction (less than 0.2mm) and the clay fractoion (less than 2 micron) are dispersed with the shker after hydrogen prozide treatment for the removal of organic matter, and separated from each suspension by gravity sedimentation. The fine sand are overved by mineral micorscope and the clay are ovseved by Z-ray diffraction patterns. differential thermal analysis curves and infrared spectrum The ooutline of the results are as follows. 1. Soils are mostly sandy and show pH 4.35 to 6.75, total exchangeable bases of surface soils are comparably low (4.35 to 6.75, total ecshcangeable bases of surface soils are comparably low (4.89 to 17.81 me/100g Ca>Mg>K>Na). Cation exchange capacity ranged from 7.74 to 21.72me/100g and base saturation percentage from 22.52 to 94.62%. 2. The primary minerals, i.e., quartz, altered-feldspar, plagioclase, and alkali-feldspea are donmant in almost all samples, and some smples contain an apprecialbel amount of hornblende, biotite, muscovite and plant opal. There are also those samples which contain very small quntity of pyroxene group, tourmaline, epidote, cyanite, magnetite, volcanic glass and zircon. 3. The mineralogical composition of the soil shows some characteristics of its parent materials. The first group is derived from weathering products of diorite, the second group is from granit or grandodiorite, and the fifth group is mainly from arkose sandstone. It is suspected that the third group is derived from weathering products of granite mixed with the arkose sandstone mexed with the granite. 4. All samples contain expanding or nonexpanding 14A micnerals, illite and kaolin minerals, and some samples contain chlorite, cristobalite, gibbsite, and thos primary minerals as quartz and feldspar, but the quantities vary according to the parent matrials. 5. Nonexpanding 14A minerals seems to be dioctahedral vermiculite ehich snawiches gibbsite layer or chlorite in between layer lattices. 6. As for clay minerals, montmorillonite was principal component in the samples derived from weathering products of arkose sandstone and tertiary. Minerals which are derived from weathering products of arkose have kaolin minerals and vermiculite as their principal component, and minerals derived from weathering products of acidic rock group are generally classified into two groups, the kaolin mineral group, and the kaolin minerals and vermiculite group.

慶北道內의 果樹園의 肥沃度에 關한 硏究(Ⅱ) : General Chemical Properties of Persimmon Orchard Soils and Chemical Composition of Leaves and Roots. 감밭 土壤의 一般 理化學的性質 및 葉.根의 成分에 對하여

李萬正 대구효성카톨릭대학 1971 연구논문집 Vol.8 No.1

1968年부터 1970年까지 3個年에 걸쳐서 慶北道內의 감 名産地의 하나인 慶山郡 및 淸道郡內 10個處의 감果樹園을 對象으로 土壤, 葉 및 細根을 각각 分析하는 한편, 栽培環境條件을 아울러 살펴서 감나무의 榮養珍斷을 위한 實驗結果는 다음과 같다. 1) 土壤은 一般으로 細砂가 많고 粘土가 적으며, pH(H₂O)는 4.1~6.9, 平均 5.7로서 弱酸性이였다. 2) 炭素含量(0.38~2.08%)과 窒素含量(0.038~0.221%) 모두 적고, 炭素率은 約 10前後였다. Toruog 燐酸은 적은 便이나 有效態加里는 正常이었다. 3) 置換性??基, C.E.C. 모두 적은 편이나, ??基飽和度는 높았고 置換性??基는 Ca>Mg>K>Na의 차례로 減少되었다. 4) 水溶性망간, 置換性망간 및 易還元性망간 含量은 pH6 以上의 土壤에서 현저히 減少되었다. 5) 水溶性동含量은 0.2~15.5ppm, 平均 2.1ppm이고, 水溶性붕소는 0.17~0.70ppm, 平均 0.33ppm이였다. 6) 葉 및 根의 分析結果는 다음 表와 같다. -표 Leaf Root Range Average Range Average N 0.72~3.61% 2.64% 0.31~1.70% 0.99% P 0.015~0.184% 0.136% 0.080~0.163% 0.117% K 0.91~2.65% 1.79% 0.26~2.08% 0.94% Ca 0.51~1.82% 1.20% 0.33~1.07% 0.53% Mg 0.33~0.98% 0.53% 0.15~4.21% 0.62% Mn 211~482ppm 306ppm 0.017~0.048% 0.032% Fe 244~658ppm 378ppm 0.193~0.502% 0.328% Fe/Mn 0.57~2.33 1.28 - - Al 13.21~30.06ppm 19.66ppm 0.30~0.78% 0.51% B 14.2~36.7ppm 26.6ppm 20.1~49.5ppm 34.6ppm 7) 窒素·燐·칼륨·칼슘 및 마그네슘은 잎에서, 나트륨·망간·철·알루미늄과 硼素는 뿌리에 많이 含有되었다. 8) 土壤·燐 및 根成分含量 사이에는 明確한 相關을 찾아볼 수 없었다. This research is to diagnose the nutritional status of persimmon orchards in Kyungsang-bukdo province, Korea. Ten typical orchards were selected throughtout the province, and sample of soil, leaf and root taken from those orchards from 1968 to 1970 were analysed. \ Tree ages,annual yields and the amount of fertilizers applied to the orchards were carefully investigated before the laboratory work to know if there is any relation between the contents of soil(such as nitrogen, phosphorus, potassium, magnesium and other minor nutrient elements) and those of leaf and root. The average values of nutrient elements were also calculated for the diagnosis. The results obtained were summarized as follows: 1) In general soils were composed of sand and it was shown weak acitity, pH(H₂O) were about from 4.1 to 6.9, and average 5.7. 2) Carbon and nitrogen contents were low, and carbon ratio was about 10. Toruog-P₂O5 were low, but 1/5N-HCI soluble K₂O were normal. 3) Exchangeable cation quantity and cation exchange capacity were low, but percentage of base saturation was high. And exchangeable cation quantity were low, but percentate of base saturation was high. And exchangeable cation quantity were Ca>Mg>K>Na. 4) Water soluble, exchangeable and easily reducible managaness were highly decreased in the soils which were more than pH 6. 5) Water soluble copper contents in the soils were 0.2~15.5ppm, average 2.1 ppm, and water soluble boron were 0.17~0.70ppm, average 0.33ppm. 6) Leaf and root composition was as follows.(on dry weight basis) -표 Leaf Root Range Average Range Average N 0.72~3.61% 2.64% 0.31~1.70% 0.99% P 0.015~0.184% 0.136% 0.080~0.163% 0.117% K 0.91~2.65% 1.79% 0.26~2.08% 0.94% Ca 0.51~1.82% 1.20% 0.33~1.07% 0.53% Mg 0.33~0.98% 0.53% 0.15~4.21% 0.62% Mn 211~482ppm 306ppm 0.017~0.048% 0.032% Fe 244~658ppm 378ppm 0.193~0.502% 0.328% Fe/Mn 0.57~2.33 1.28 - - Al 13.21~30.06ppm 19.66ppm 0.30~0.78% 0.51% B 14.2~36.7ppm 26.6ppm 20.1~49.5ppm 34.6ppm 7) There were more nitrogen, phosphorus, potassium, calcium and magnesiun in the leaf, and more sodium, managness, iron, aluminium and boron in the root. 8) No clear relationship was found between the contents of soil and those of leaf and root.

錄豆幼植物의 根瘤形成과 各種 인산염과의 關係 : Phosphate의 濃度와 根瘤形成

李萬正 대구 효성가톨릭대학교 1968 연구논문집 Vol.1968 No.3

下水道沈泥의 理化學的 性質에 關한 硏究

李萬正 대구 효성가톨릭대학교 1969 연구논문집 Vol.5 No.1

下水道 沈泥의 理化學的 分析을 通해 다음과 같은 結論을 얻었다. 1. 採取場所에 따라 多少의 差이는 있으나 大體로 中性에 가깝고 炭素率이 比較的으로 낮았다. 2. 밭土壤에 비해서 ??基含量이 많고 Cation置煥容量이 크고 따라서 ??基飽度가 높았다.

숙주나물의 Vitamin C 에 關한 硏究

李萬正,姜漢月 대구 효성가톨릭대학교 1969 연구논문집 Vol.5 No.1

숙주나물 栽培에 있어서 播種前 濃度를 달리한 各種 微量要素와 生長抑制素의 溶液에 浸漬한 후 生長度와 還元形 Vitamin C의 含量을 調査한 結果는 다음과 같다. 1. 微量要素中 Fe, Zn, Mo, Cu, Mg等은 그 濃度가 0.01~0.0001%程度의 溶液에 浸漬한 후 栽培하였드니 對照區보다 生長이 빨랐다. 2. Fe₂(SO₄)₂0.001~0.0001% ZnSO₄0.01~0.0001% CuSO₄ 0.001% 및 Phosfon D., C.C.C 0.1~0.0001% 溶液에 浸漬栽培한 숙주나물은 對照區보다 還元形 Vitamin C의 含量이 많았다.

大學敎科課程에 대한 意見 調査 : 副專攻制度를 中心으로

李滿英,孫炳煥,張晩植 대구효성가톨릭대학교 1981 연구논문집 Vol.23 No.1

水銀分析法에 대한 考察

李萬正 대구효성가톨릭대학교 1982 연구논문집 Vol.24 No.3

食品의 依한 無機水銀의 Alkyl化에 關한 硏究

李萬正 대구효성가톨릭대학교 1987 연구논문집 Vol.35 No.1

Formation of alkylmercury compounds by addition mercuric chloride, methylcobalamin, or sun light irradiation in plant food stuffs was examined. 1. The component of plant foods itself, is not enouth for alkylation of the additional inorganic mercury. 2. After the plant foods had been incubated wiht inorganic mercury anc methylcobalamin, we obtained a methyl mercury compound. But the quantity of the yield was little and the reaction time was prolonged. 3. After sunlight irradiation of inorganic mercury in the presence of aceticacid and plant foods had been done, we obtained a methyl mercury compound. But the quantity of the yield was also little. These studies suggest that the plant foods may inhibit or delay the alkylation of inorganic mercury.

慶北道內의 果樹圓의 肥沃度에 關한 硏究(Ⅰ) : Primary Minerals and Clay Minerals of Persimmon Orchards 감밭土壤의 一次鑛物 및 粘土鑛物에 對하여

李萬正 대구효성가톨릭대학교 1970 연구논문집 Vol.6 No.1

The siols of persimmon orchards in the province of Kyungsangbukdo in Korea, were analyzed. Fine sand and clay were observed with mineral microscope, and by means of X-ray diffraction. The results obtained were as follows: 1) The principal primary minerals were plagioclase, quartz and alkali feldspar. Volcanic glass, hornblende, biotite, muscovite, plant opal, magnetite and epidote(?) were also pbserved. 2) In clay minerals, montmorillonite, vermiculite, illite and kaolin minerals which is derived from weathering products of metamorphic rock was observed mainly and minerals which are derived from weathering products of acidic rock were divided generally into two kinds, that is, kaolin minerals, montmorillonite and vermculite, and kaolin minerals and illite.