鷄龍山 森林群集의 連續變化에 關하여

宋鎬京 忠南大學校 環境問題硏究所 1984 環境硏究 Vol.2 No.2

150 quadrats of 20m×20m scattered in Mt. Gyeryong were inventoried to determine continuous variation of leading dominants along topographic moisture gradient. The mesic species were Quercus aliena, Styrax japonica, etc., and the xeric were Quercus mongolica, Fraxinus sieboldiana, etc. The leading dominant species were determined as follows; Styrax japonica, Castanea crenata, Pinus densiflora, Carpinus laxiflora, Carpinus cordata, Quercus variabilis, Quercus mongolica. The continuous variation of leading dominants were presumed with close relations to moisture gradient. Pinus densiflora located in subxeric regions were widely dispersed pioneer species.

우리나라 소나무속(屬)의 Monoterpene 조성(組成)의 변이(變異)에 관(關)한 연구(硏究)

송호경,Song, Ho-Kyung 충남대학교 농업과학연구소 1976 Korean Journal of Agricultural Science Vol.3 No.2

한국산(韓國産) Pinus속(屬)의 Diploxylon아속(亞屬)의 소나무, 중곰솔, 곰솔, 금강소나무에 대(對)한 류별(類別)을 알아보기 위(爲)하여 GLC에 의(依)한 monoterpene 조성(組成)을 분석(分析) 연구(硏究)하여 다음과 같은 결과(結果)를 얻었다. 소나무, 중곰솔, 곰솔, 금강소나무의 monoterpene은 ${\alpha}$-pinene, camphene, ${\beta}$-pinene, myrcene, limonene, ${\beta}$-phellandrene, terpinolene 외(外)에 2개의 미지(未知)의 조성분(組成分)으로 구성(構成)되어 있다. 소나무와 금강소나무의 주요(主要) monoterpene조성(組成)은 ${\alpha}$-pinene, ${\beta}$-phellandrene, myrcene, terpinolene 이다. 중곰솔의 주요(主要) monoterpene 조성(組成)은 ${\beta}$-pinene, ${\beta}$-phellandrene, ${\alpha}$-plnene, terpinolene 이다. 곰솔의 주요(主要) monoterpene 조성(組成)은 ${\beta}$-pinene, ${\alpha}$-pinene, ${\beta}$-phellandrene, limonene 이다. 소나무, 중곰솔, 곰솔, 금강소나무에서 모두 monoterpene 조성분(組成分)은 개체간에 큰 차이(差異)가 있었다. 중곰솔은 monoterpene 조성(組成)에 있어서 소나무와 곰솔의 중간에 해당되었다. 소나무와 곰솔을 구별(區別)하는 가장 좋은 분류적기준(分類的基準)이 되는 monoterpene의 주성분(組成分)은 ${\alpha}$-pinene, ${\beta}$-pinene, myrcene이었고 소나무는 ${\alpha}$-pinene이 ${\beta}$-pinene보다 항상 많았고 중곰솔을 그 반대(反對)였다. 안면도와 치악산(産) 소나무의 산지별(産地別) 차이(差異)에서는 ${\alpha}$-pinene에서 유이성(有異性)이 보였으나 이는 개체 사이의 변이(變異)가 큰 것에 기인(起因)하는 것으로 추측(推測)된다. Monotupenes of the oleoresin of P. densiflora S. et Z., P. densi-thunber gii Uyeki, P. thunbergii Parl., and P. densiflora for. erecta Uyeki of the subgenus Diploxylon of the genus Pinus in Korea were analysed by means of gas liquid chromatography, and following results were obtained. Monoterpene of P. densiflora, P. densi-thunbergii, P. thunbergii, and P. densiflora for. erecta consisted of ${\alpha}$-pinene, camphene, ${\beta}$-pinene, myrcene, limonene, ${\beta}$-phellandrene, terpinolene and two unknown components. Major monoterpene components of P. densiflora and it's for. erecta were ${\alpha}$-pinene, ${\beta}$-phellandrene, myrcene, and terpinolene. Major monoterpene components of P. densi-thunbergii were ${\beta}$-pinene, ${\beta}$-phellandrene, ${\alpha}$-pinene, and terpinolene. Major monoterpene components of P. thunbergii were ${\beta}$-pinene, ${\alpha}$-pinene, ${\beta}$-phellandre, and limonene. Monoterpene components in P. densiflora, P. densi-thunbergii, P. thundergii, and P.densiflora for, erecta showed a range of variation by the individual trees. Monoterpene contents of P. densi-thunbergii were intermediate between those of P. densiflora and P. thunbergii. ${\alpha}$-pinene, ${\beta}$-pinene, and myrcene appeared to be the best taxonomio characteristics for separating P. densiflora from P. thunbergii, and the former had higher content of ${\alpha}$-pinene than ${\beta}$-pinene while those of the latter were vise versa. There was a significant difference of ${\alpha}$-pinene components of P. densiflora between that of Anmyun Island and Mt. Chiak, but it seemed to be caused by the difference of the individual trees rather than provenancial difference.

Classification과 Ordination에 依한 俗離山 森林群集의 分析

兪在殷,宋鎬京 忠南大學校 環境問題硏究所 1989 環境硏究 Vol.7 No.-

Vegetational data from Mt Sokri in central Korea were analysed in relation to 17 environmental variables. Two multivariate methods were applied two-way indicator species analysis (TWINSPAN) for classification and detrended canonical correspondence analysis (DCCA), a recent technique which extracts ordination axes that can be related to environmental factors. The relationship between the distribution of dominant species of forest vegetation and soil condition in Mt Sokri was investigated by analyzing altitude and soil nutrition gradient. Quercus mongolica forest was distributed in the high altitude and good nutrition area, Quercus serrata-Acer pseudo-sieboldianum forest in the medium altitude and good nutrition area, Quercus variabilis and Quercus serrata forest in the medium altitude and medium nutrition area, and Pinus densiflora forest in the low altitude and poor nutrition area. Quercus mongolica forests were distributed in the xeric parts of northern part of warm-temperate deciduous boardleaf forest and in the mesic parts of cool-temperate deciduous boardleaf forest in Korea. The dominant compositional gradient related to altitude.

울릉도 성인봉과 태하령지역 산림식생의 분류에 관한 연구 : TWINSPAN과 식물사회학적 방법을 중심으로

송호경 한국환경생태학회 2000 한국환경생태학회지 Vol.14 No.1

본 연구는 울릉도의 성인봉과 태하령지역의 산림식생을 분류하기 위해 199년 7-8월에 36개소를 선정하여 식생조사를 실시하였으며 식물사회학적 방법과 TWINSPAN에 의하여 군락을 분류하였다 울릉도 산림의 종조성표에 의한 군락 분류결과 너도밤나무-섬노루귀 군락군으로 판명되었다 이 군락군은 다시 솔송나무-섬잣나무 군락, 참나도히초미-졸방제비꽃군락으로 크게 나뉘어졌으며 참나도히초미-졸방제비꽃군락은 다시 전형하위군락. 섬조릿대하위군락 일색고사리하위군락으로구분되었다 TWINSPAN에 의한 분류결과는 솔송나무-섬작나무군락 너도밤나무-섬조릭대군락 너도밤나무-일색고사리군락, 너도밤나무-큰두루미꽃군락으로 구분되었다 식물사회학적 군락 분류결과와 TWINSPAN에 의한 군락분류결과는 4개 군락으로 구분되는 일치성을 보이고 있어 두 방법에 의한 군락 분류방법은 상호 보완될수 있다고 판단된다.

Midazolam 과 Thiopental 의 마취유도 효과 비교

송호경,김선희,최용우,문세호,정동석,성춘호 대한마취과학회 1993 Korean Journal of Anesthesiology Vol.26 No.4

This study was performed to evaluate the induction time, hemodynamic responses and local venous complications after intravenous induction with midazolam, comparing with those after intravenous induction with thiopental. Sixty adult surgical patients received either 5 mg/kg thiopental sodium(group I) or 0.2 mg/kg midazolam hydrochloride(group II) as an induction agent. The results were as follows. 1) The induction time(loss of palpebral reflex) of the group II(68.2±21.5 sec) was significantly longer than those of group I(29.6±8.3 sec). 2) The magnitude of rises in the systolic blood pressure, 1 and 2 minute after intravenous administration of induction agent, of group II were significantly smaller than those of group I. 3) The magnitude of rises in the diastolic blood pressure, 2 minute after intravenous administration of induction agent,of group II were significantly smaller than those of group I. 4) The magnitude of rises in the pulse rate, 1 and 2 minute after intravenous administration of induction agent, group II was not significantly differ from those of group I. 5) In three patients of the group I complained of pain during injection, but no patients of the group II complained of pain. There was no significant difference in the incidence of the postoperative local venous complication.

굴참나무림의 구조와 DCCA 에 의한 식생과 환경과의 상관관계 분석

송호경,이선,이미정,지윤의,김효정 한국산림과학회 2001 한국임학회 학술발표논문집 Vol.2001 No.-

N/A N/A

굴참나무림의 구조와 DCCA 에 의한 식생과 환경과의 상관관계 분석

송호경,이선,이미정,지윤의,김효정 한국임학회 2001 한국임학회 정기학술발표논문집 Vol.2001 No.-

계룡산국립공원 계곡부 식생의 식물사회학적 연구

송호경 한국환경생태학회 2000 한국환경생태학회지 Vol.14 No.1

본 연구는 국립공원의 산림관리에 필요한 기초자료를 제공하고자 계곡부식생을 조사하였다 계룡산국립공원의 계곡부식생을 ZM학과의 식물사회학적인 방법으로 분류한 결과 까치박달군락으로 구분되었다 까치박달군락은 다시 고로쇠나무아군락, 조릿대아군락, 병꽃나무아군락 등 3개의 아군락으로 서어나무군락은 쥐똥나무아군락 쪽동백아군란 등 2개의 아군락으로 구분되었다 까치박달군락은 서어나무군락보다 해발고가 높고 습한 지역에 분포하였다 또한 동일한 계곡이라 할지라도 입지조건 중 특히 계곡부가 위치해 있는 사면의 방위에 따라 식생구성의 차이를 나타냈다.

흰쥐에서 뇌실내 Choline 투여로 유발된 고혈압에 대한 편측 경부 교감신경 절제의 효과

송호경,장연,박수석 대한마취과학회 2001 Korean Journal of Anesthesiology Vol.40 No.1

Background: Brain acetylcholine is an important neurotransmitter in the control of blood pressure. Pharmacological activation of central cholinergic receptors by intracerebroventricular (ICV) administration of choline resulted in a marked pressure response in hypotensive experimental models, and the pressure response was associated with an increase in plasma vasopressin levels. The aim of this study was to determine whether a unilateral cervical sympathectomy affects the pressure response induced by ICV choline. Methods: Rats were prepared with a cervical sympathectomy or with a sham operation and a 23 G cannula was implanted into the lateral cerebral ventricle. They were divided into three group according to the pre-treated condition and the solution injected into the lateral cerebral ventricle; group 1 (ICV saline after sham operation), group 2 (ICV choline after sham operation), group 3 (ICV choline after cervical sympathectomy). Following the recovery period, pressure response was monitored for 50 min after injecting ICV choline or saline and plasma vasopressin levels were also assessed with an EIA kit at preinjection time, 10 min, and 50 min after ICV injection. Results: The baseline systolic blood pressure was 120.6 ± 3.9 mmHg in group 3 and 121.7 ± 9.0 mmHg in group 2 and there was no significant difference. The pressure response to ICV choline became evident within 1 min and reached a maximum magnitude in 10 min in both groups. Compared to the sham operated rats (group 2), the pressure response to ICV choline was significantly attenuated in sympathectomized rats (p < 0.05). However, the plasma vasopressin levels were not significantly affected by ICV choline or a cervical sympathectomy. Conclusion: While the unilateral cervical sympathectomy itself did not have any effect on blood

가토 상경신경절의 해부학적 위치 및 그 차단이 각막의 신생혈관 형성에 미치는 영향

송호경,진수남 가톨릭대학 (가톨릭신학대학) 대학원 1994 가톨릭大學醫學部 論文集 Vol.47 No.2