한국의 대표적인 산림토양통에 (山林土壤統) 대한 중요 조림수종의 (造林樹種) 시비효과 (施肥效果) 분석에 관한 연구 (Ⅰ)

정인구,김창호 ( In Koo Chung,Chang Ho Kim ) 한국산림과학회 1978 한국산림과학회지 Vol.37 No.1

This experimentation aims to study on the characterics of tree growth by forestry land soil system and the effect of applied fertilizer by kind of tree for obtaining basic data on application of fertilizer to forestry land and to further investigate the restriction factor of tree growth by soil system for promoting more effective application of fertilizer to forestry area. 1. The characteristics of tree growth by soil system showed that tree growth was worst on erosive soil, bad on red or red and yellow soil and generally good on brown soil. 2. With regard to Black Locust, the restriction factor of its growth appeared the content of P₂O_5 in the soil and the less the content of P₂O_5 is in the soil, the worse its growth was and its growth was bad on clay soil. 3. The growth of pinus seems closely related with the content of K₂O in the soil and the growth of PH was bad on neutral or alkali soil and good on weak-acid soil. Its growth greatly depended upon the content of OM or FN. 4. As Suwon Poplar is a kind of tree requiring for a special soil, its growth required for fertile soil and the content of O. MN P₂O_5 K₂O was proportional to its growth. 5. The growth of Black Locust, pinus and Suwon Poplar was good on the soil containing much sand but bad on the soil containing much clay.

간장 ( 肝臟 ) 및 담도 ( 膽道 ) : 담관낭종의 15예에 대한 임상적 고찰

김선주(Sun Joo Kim),정재삼(Jae Sam Chung),조무식(Moo Sik Cho),조주영(Joo Young Cho),김대수(Dae Soo Kim),황성규(Seong Gyu Hwang),이문호(Moon Ho Lee),임건일(Gune Il Lim),구영무(Young Moo Koo),김창호(Chang Ho Kim),송옥평(Ok Pyeong Song) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.1

N/A Congenital diatation of the common bile duct is an uncommon condition. More than 190 cases have been reported in the Korean literature up to date including the present series. We reviewed 15 cases of choledochal cyst treated surgically at the Chun-an Hospital, Soonchunhyang University, between January 1984 and July 1990. The results were as follows. 1) Age ranged from 1 year to 64 years and 7 of 15 cases were above 30 years. The ratio of men to women was 1: 6.5. 2) The durations of symtoms varied widely from 3 days to 13 years. 3) The frequency of the triad of symptoms and signs were in order of abdominal pain 14 cases (93%), jaundice 8 cases (53%) and abdominal mass 7 cases (47%), The classical triad of mass, pain and jaundice was present in 6 cases (40%). 4) Ultrasonography was useful as the initial diagnostic tool in all cases As next diagnostic studies, abdominal CT was performed in 6 cases, ERCP in 4 cases and PTC in 3 cases. 5) According to the classification of Todani, 13 cases (87%) were type I and two cases (13%) were type II. 6) The associated disease were cholecystitis in 8 cases, stone in common bile duct in 4 cases, cancers in 2 cases, GB empyema in 1 case and bile peritonitis in 1 case 7) Preoperative diagnosis was made in 13 (87%) of 15 cases 8) Surgical procedure used were principally choledochocystoduodenostomy in 3 cases, choledo-chocystojejunostomy in 8 cases, cyst excision in 2 cases, T tube choledochostomy in 1 case, and T tube choledochostomy with delayed cyst excision in 1 case.

嶺湖南地方 瘠薄林地의 오리나무와 아까시나무의 適地에 關한 硏究

金昌浩,鄭印九,吳正壽 동국대학교 농림과학연구소 1969 農林科學 論文集 Vol.3 No.-

The objectives of these studies were to investigate how every kinds of Black Locust and Alder influence on the growth of woods in the Yongnam and Honam district. The result of this study appeared as follows: 1. At the point of soil depth. the deeper the soil depth is, the better for Black Locust and Alder grows well regardless of it. 2. Black Locust shows good growth in loose soil but even in consistant soil Alder was excellently brought up. 3. Black Locust grows well in clay loam while Alder is appropriate to grow in sandy soil. 4. Black Locust requires an adequate soil depth so it grows well in gentle slope area but Alder grows well even in steep slope area which unproductive land enables to grow Alder satisfactorilly. 5. The constitution of cover vegetation could, to some extent, be attained in the superior forest land of Black Locust but it was impossible to make cover vegetatioe in that of Alder : It can therefore, be easily attained the open area between trees of Alder pure forest. 6. Black Locust and Alder are soil improving trees and so the content of effectivn phosphorus had a great effect on tree growth. 7. Black Loust forest land had more organic substance than Alder and this fact was closely connected with tree growth. 8. C. E. C is deeply concerned with the growth of black locust but less concernment related with Alder. 9. The suitable land for Black Locust. 1) A deep soil depth. 2) On less consistancy. 3) Contained much of P_2O_5 in soil. 4) Much of organic substance. 5) On a clay loam. 6) Forest land with greater C. E. C. 10. The suitable land for Alder : 1) Contained much of P_2O_5 in soil. 2) Much of organic substance. 3) With moderate consistancy and effective soil depth 4) on sandy soil. 11. It is assumed that Black Locust requires more soil conditions than Alder. 12. Haenam district of Chulanam-Do where severly damaged by disease was excluded from this survey study.

苗圃 肥培管理에 關한 硏究

金昌浩,鄭印九 東國大學校 1975 論文集 Vol.14 No.-

This studies was carried out in autumn 1973-1974 at the 8 nursery 36 places all over the Korea. Nursery soil samples were collected and analized it's various properties. Especially relation of soil ingridient and seedling's growth were observed to elucidate the production of healthy seedling by proper treatment of nursery soil fertilizer. The results were as follws. 1. On the basis of soil ingrident level and seedling grade, The effective phosphate contents in high grade of seedling was 74.12ppm in average, median grade of seeddling was 50.06 ppm, and low level of seedling was 24.20ppm. Effective potassium contents in high grade of seedling was 36.62ppm, median grade of seedling was 28.63ppm, and lowgrade of seedling was also 19.45pp. Effective organic substance on the growth of nursery was nearly ignored in it's relation. 2. In the relation of seedling growth to soil depth, surface to 15cm depth of soil character was effective on the growth of seedling, 15-30cm depth of soil was corelated in each otger, but 30-60cm depth of soil was nearly ignored in it's relation. 3. Physical characteristics of soil were important in the growth of seedling. Although soil characteristics to median level of soil in it's ingridient contents, it could not produced high grade of seedling onlu by the it's physical composition, structure, water contents, airation, soil character, incoporated organic matter aand cross sectional structure of soi. the reasons were that soil was suplyed with proper quantity of organic fertolizer to change soil structure. 4. Optimum pH range to growth of seeding was 5-7, Rigida pine and a sort of pine were tolerance in acid pH of their growth, But soluble ingridents will be affects to their grwoth. 5. Effect of organic phospate and potassium contents on the growth of seedling were closely related. The soil which contained larger quantity of effective phosphate also contained much quantity of potassium. 6. In the effective phosphate and exchangeable potassium contents in surface soil to produce a healthy seedling, phoshate content was 75ppm, and exchangeable potassium was also 50ppm, Recommandable ingridents Table for production of healthy seedling showed at the table 1.