창덕궁 연구(I) -건축물을 중심으로 한 전통공간의 시대적 변화-

손창구,김귀곤,오구균,김익수,전용준 한국조경학회 1991 韓國造景學會誌 Vol.18 No.4

The purpose of this study is to find the bases for the restoration of traditional Palace gardening by chronologically analyzing the change of space in Changduk Palace. The result of analyzing archives and Dongguldo is that the most of present spaces are considerably differ from the spaces of traditional Palace. But the backyard of Palace was not greatly damaged and the spaces of Injungjun and Daejojun was immediatly restored.

國立公園 開發에 따르는 寺刹環境 保全方案에 關한 硏究

孫昌求,姜泰昊 동국대학교 2007 慶州大學論文集 Vol.6 No.-

土壤中의 망간 定量法에 關한 二三의 考察

孫昌求 東國大學校 學徒護國團 農林大學大隊 1976 東國農林 Vol.9 No.-

湛水土壤中에서의 數種改良劑의 添加가 遊離硫化水素發生의 抑制效果에 關한 硏究

孫昌求 동국대학교 농림과학연구소 1980 農林科學 論文集 Vol.6 No.-

Investigations were made on the inhibitory effect, of Various materials cantaining iron and red clay soils, which were added to the Akiochi soils at various rate, and incubated under the water logged condition, on the production of hydrogen sulfide. 1. Among various materials containing iron, ferric hydroxide, metalic iron powder and the "iron-rich red soil" B were the highest in inhibitory effct for hydrogen sulfide: ironoxide powder and burnt Pyrite slat were somewhst inferior to the formers, and bausite slag was least effective. In general, the inhibitory effect was least effective. In general, the inhibitory effect was in Proportion to the free iron content of the materials. For example, ferric hydroxide and bausite slag were compared in the following table: ◁ 표삽입 ▷ (원문을 참조하세요) 2. The inhibitory strength of all the materials containing iron revealed an increase with the time of incubation period. 3. The inhibitory effect of red clay soils was generally, in proportion to the free ironoxide contents, although the contents varied by the soil orgin. But, sometimes were found exceptions, in which red lay soils containing large amounts had poor inhibitory effects. 4. Consequently, the inhibitory effect of hydrogen sulfide by various material nearly coincided each other, when they are compared on the basis of free ironoxide quantity by TROUG'S method, with a few exceptions. 5. The inhibitory efficiency on hydrogen sulfide declined with the increasing addition of the materials. 6. The most effective and economical rate of addition of these materials for inhibiting hydrogen sulfide seems to be 0.5g as hot Hcl Soluble iron (Fe_2O_3), and 0.25g as free iron oxide (Fe_2O_3), per 100g soil, respectively.

Tree-Carnation에 대한 Gibberellin 處理硏究

孫昌求 동국대학교 새마을연구소 1979 새마을硏究 論文集 Vol.1 No.-

The Tree-Carnation sapling which were used in this experiment were grown by cutting and planted in clay pot. this experiment were conduced in greenhouse during 1975 and 1965. The experiment were carried as following. A : control. B : sprayed 10p.p.m. of Gib solution 3 times (on date of Oct. 17.27. Nov. 6.) C : sprayed 50p.p.m. of Gib solution 3 times 〃 D : sprayed 10p.p.m. of Gib solution 3 times 〃 (on date of Jan. 2. 12. 22.) E : sprayed 50p.p.m. of Gib solution 3 times 〃 The blooming of Tree Carnation were promoted one or two week by application of Gib. a period of bud forming. but not so much Promoted which were treated in period of Growing. By the spraying of Gib. the length of stem and scape were elongated when sprayed at bud forming season. By the elongation of Scape Promoted the quality of Tree-Carnation flower decoration.

사과(沙果)園 土壤의 硝化作用에 미치는 添加窒素肥料의 影響

孫昌求 동국대학교 경주대학 2007 慶州大學論文集 Vol.1 No.-

사과(沙果)園 土壤의 硝化作用에 미치는 添加窒素肥料의 影響

孫昌求 동국대학교 경주대학 1982 論文集 Vol.1 No.-

Each of the five apple orchard soils (Table 1), which was treated with different kinds of ammonium salts, was incubated at 30℃ under a humid condition for a definite period. Then the amounts of nitrate produced and water-extractable ammonium nitrogen (NH_4-N) from the soil were determined. In proportion to increasing the addition of ammonium salts to the soil, the rate of nitrification in the (NH_4)_2HPO_4-applied soil was increased, but reversely that in the (NH_4)_2SO_4-applied soil was decreased except in the case of Soil-E. This repression in the latter could not be avoided by the addition of Potassium Phosphate to the soil (Fig. 1, 2, 3). In the case of the (NH_4)_2HPO_4-application the level of water extractable NH_4-N from the soil were lowered, which in the case of the (NH_4)_2SO_4-, CH_3COONH_4-and the (NH_4)_2SO_4+Potassium Phosphateapplication, became extremely high (Fig.3,4,5). It seems that the difference of the amounts of water-extractable NH_4-N among these salts is due to the amounts of NH_4-N adsorbed to the soil. As a result of extrapolating the concentration of water extractable NH_4-N VERSUS amounts of added water curve, the concentration of NH_4-N in the liquid phase of the incubated soil was estimated at more than 400ppm in the case of (NH_4)_2SO_4 and CH_3COONH_4 (Fig. 5). Also it is known that the growth of nitrifying bacteria is prevented when the concentration of ammonium ion (NH_4^+) in the soil solution is higher than 400ppm. When CH_3COONH_4 was applied to the soil, the amounts of nitrate produced were decreased with increasing the amounts of this salt at the initial stage of incubation, but after 14-day incubation there was a tendency for the nitrate amount to increase. This change was in accordance with the amounts of water-extractable NH_4-N from the soil (Fig.3). The addition of Calcium to the soil increased the rate of nitrification to a great extent (Table 2, 3). And it was shown that this increase was closely associated with the rise in soil pH (Table 3). Of these results, it was suggested that one of the reasons for the difference of the rate of nitrification among the applied ammonium salts may depend upon the difference of the ability of NH_4^4 adsorption to the soil, although the rate of nitrification in the soil which has a hich Calcbium saturation may not be so much influenced by NH_4^+ adsorption ability.

湛水土壤의 諸條件과 遊離硫化水素 및 硫化物生成과의 關係에 對하여

孫昌求 동국대학교 새마을연구소 1981 새마을硏究 論文集 Vol.2 No.-

The production of hydrogen sulfide ad the other sulfides under various soil conditions, i.e. sulphur content, soil's pH, addition of starch and form of sulfate, etc., were investigated, using the methpd described in the report I. Degraded Akiochi soils and normal soil, under water-logged condition, were used in this study. The results obtained are as follows: 1. When the quantity of sulfate added (0-70 mg S. per 100g soil) to the Akiochi soil varied, also, the production of free hydrogen sulfide varied proportionally. Its maximum content was observed to be 3.48mg S per 100g soil. In the normal soil, however, only a trace f the hydrogen sulfide was produced, being less than 0.1mg S per 100g soil in most of the cases. In Akiochi soils, nearly equivalent amount of total sulfide to the added sulphur was obtained within 1-4 weeks of incubation period. while in the normal soils the amount of the total sulfide was much more higher. 2. Results of the experiment with 20, 30 and 35℃ in cubatiins showed that the higher temperature gave more amount of sulfide and hastened the generation of hydrogen sulfide. 3. As to the relationship of soil pH to sulfide production, it was observed that the maximum quantity of sulfide was produced when the pH was around 8. In Akiochi soils, evolution of the free hydrogen sulfide showed two peaks, i.e. one at pH 3-4 and the other at pH 8-9, respectively. The one on the alkaline side was especially greater. In case of Sachun Akiochi soil (dervied from liparite), the following results were obtained: pH 3 … 1.2mg S; pH5 … 0.81mgS; pH 9.7 …2.8mg S per 100g soil. In the normal soils, with various pH values, very small quantity of hydrogen sulfide was generated, being about 0;1mg S per 100g soil, except 0.2mg S at pH 3. 4. When starch was added with an aim to reduce the soil, at the rates of 0.1, 0.25, 0.5 and 1.0% contrary to the expectation, the production of the sulfides decreased, both in the normal and the Akiochi soils, with the increase in the starch. In Akiochi soils, the hydrogen sulfide was also produced, with the same tendency. The cause will be the organic acid produced and the soil's pH depressed, during the decomposing process of the starch. 5. Various sulfates added to the soil, such as NH_4, Na, K, Ca and Mg salts produced nearly equal quantities of the free hydrogen sulfide and the other sulfides. Ba salt, however, produced very slowly only a small quantity of the sulfides. Mn salt produced nearly the same quantity of total sulfides, as NH, Na salts etc., but an exceedingly large quantity of the free hydrogen sulfide was, also, produced, amounting to nearly 3 times much more, after 2-4 weeks incubation.

造景植栽工事 標準품셈의 改善方案에 關한 硏究

손창구,김귀곤,윤근영,강태호,김익수,Sohn, Chang-Ku,Kim, Kwi-Gon,Yoon, Keun-Young,Kang, Tae-Ho,Kim, Ik-Soo 한국조경학회 1990 韓國造景學會誌 Vol.18 No.3

The purpose of this study was to suggest, an ameliorated, 'standard of estimated unit manpower & material' in the Landscape Planting Work. To achieve this goal of this study, following process was performed to reach more advanced results. First, relevant domestic & foreign references were gathered & analyzed with a viewpoint of the system & contents within, Second, most similar foreign country‘s relevant 10 forms & actual site were surveyed, Third, actual site data were collected from the 17 selected landscape Planting sites Fourth, the collected data from reference study & actual site survey were analyzed and calculated. And Finally, analyzed data were reorganized & rearranged in good order with 3 principles to produce more ameliorated 'Standard of estimated unit manpower & material' in the landscape Planting Work. The suggested main results of this study include, 1. Reorganization of current system to transplanting(includes excavation & root ball wrapping), planting(includes tree & shrub), turfing & maintenance 2. Deletion of the Range of 'account of labor' & simultaneous distribution of 'account of labor' with a proposed regular ratio 3. Adjustment of the range of the plant's size 4. Amelioration of the level of 'Account of labor' 5. New establishment in maintenance items as Watering, Fertilizing & spraying chemicals on turf area. 6. Readjustment & new establishment of the backfill volume. 7. Actualization, readjustment & new establishment of the transportation amount.

國立公園 開發에 따르는 寺刹環境 保全方案에 關한 硏究

孫昌求,姜泰昊 동국대학교 경주대학 1987 論文集 Vol.6 No.-

Buddhism doesn't take an objective and relative view of the nature. It has connected korean native popular religion and identified man with nature on the level that man is able to project himself into nature. For this reason, Buddhism has been able to settle down and developed on the cultural climate of Korea. But western trends of though which regards the conquest of nature as a measure of development of civilization has brought about serious ecological crises like these days. So, our national park development plan, which has been based on the western though and methods, has destroyed and damaged our old temple areas which are ideal and cultural heritages of our nation. Because of these realities, our old temple areas have been changed as recreational areas, and amusement places. And in the same way, monks and relics of buddhism are changed as sight-seeing objects. Therefore, we must change our westent thought of nature so that these old temple areas are not damaged and lost any more. And we have to adopt a proper measure for conservation of nature environment and we need deep understanding of Buddhism ideas of nature.