DCCA에 의한 신갈나무群落과 環境의 相關關係 分析

宋鎬京 忠南大學校 環境問題硏究所 1990 環境硏究 Vol.8 No.-

신갈나무群落의 種 組成과 立地와의 關係를 究明하기 위하여 TWINSPAN(two-way indicator species analysis)과 DCCA(detrended canonical correspondence analysis)를 시행하였으며, 이들의 分析 結果는 다음과 같다. 1. 신갈나무群落과 土壤 環境과의 關係를 살펴보면 당단풍群이 소나무群보다 海拔高가 높고, 全窒素 含量이 많은 곳에 주로 分布하고 있다. 2. 신갈나무-철쭉群集은 濕한 곳에, 신갈나무-생강나무群集은 乾燥한 곳에 分布하며, 群集 分布에 영향을 미치는 第一의 環境 要因은 海拔高(溫度)이고 그 다음 要因은 全窒素이다. Vegetational data Quercus mongolica communities were analysed in relation to 14 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 relationships between the distribution of dominant species of Quercus mongolica community vegetation and soil condition were investigated by analyzing elevation and total nitrogen concentration gradient. Acer pseudo-sieboldianum groups were distributed in the high elevation and high total nitrogen concentration, while Pinus densiflora groups were distributed in the low elevation and low total nitrogen concentration. Quercus mongolica-Rhododendron schlippenbachii forest was distributed in the mesic area, Quercus mongolica-Lindera obtusiloba forest in the serix. The dominant compositional gradient was related to elevation and total nitrogen concentration.

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.

지리산 연기암과 임걸령 지역의 산림군집 구조에 관한 연구

송호경,이도한,이미정,이선 충남대학교 농업과학연구소 1999 농업과학연구 Vol.26 No.2

지리산 연기암과 임걸령 지역의 산림 식생을 파악하기 위하여 TWINSPAN 방법을 사용하여 군락을 분류하고 산림군락의 구조를 분석하였다. 연기암 지역의 산림 식생은 서어나무-졸참나무군락, 소나무-때죽나무군락, 갈참나무-서어나무군락, 갈참나무-졸참나무군락으로 분류되고, 임걸령지역의 산림식생은 신갈나무-서어나무군락, 신갈나무-당단풍군락, 신갈나무-구상나무군락, 신갈나무-철쭉군락으로 분류되었다. 연기암 지역에서 중요치 높은 종은 소나무, 서어나무, 졸참나무, 갈참나무, 굴참나무 등의 순이며, 임걸령 지역에서 중요치가 높은 종은 신갈나무, 구상나무, 당단풍, 철쭉, 피나무 등의 순이다. Community classification with TWINSPAN and analysis of forest community structure in Yo˘nkiam and Imgo˘lryo˘ng areas were carried out to research forest vegetation. The forest communities in Yonkiam area were classified as Carpinus laxiflora - Quercus serrata community. Pinus densiflora - Styrax japonica community, Quercus aliena - Carpinus laxiflora community, Quercus aliena - Quercus serrata community. The forest communities in Imgo˘lryo˘ng area were classified as Quercus mongolica - Carpinus laxiflora community, Quercus mongolica - Acer pseudosieboldianum community, Quercus mongolica - Abies koreana community, Quercus mongolica - Rhododendron schlippenbachii community. The dominant species in Yo˘nkiam area were Pinus densiflora, Carpinus laxiflora, Quercus serrata, Quercus aliena and Quercus variabilis. The dominant species in Imgo˘lryo˘ng area were Quercus mongolica, Abies koreana, Acer pseudosieboldianum, Rhododendron schlippenbachii and Tilia amurensis.

학술연구 발표논문집 : 토목,기계,보호,휴양,임산,조경 분야 ; 본관 3층 대회의실 : 화강암질 풍화토 절토비탈면의 식생천이 과정에 관한 연구

송호경,박관수,이미정,김효정,이준우 한국임학회 2003 한국임학회 학술발표논문집 Vol.2003 No.-

급성간헐성포르필리아 3례 보고

송호경,김녕중,정재화,백승진,이대윤 대한의학협회 1978 대한의학협회지 Vol.21 No.8

굴참나무림의 구조와 DCCA 에 의한 식생과 환경과의 상관관계 분석

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

大岩山 高層濕原 周邊의 森林群集 分析

宋鎬京,權琦遠,任慶彬,鄭鎭澈,張圭寬 충남대학교 농업과학연구소 1993 농업과학연구 Vol.20 No.2

Vegetational data obtained from 15 quadrats of Mt. Daeam area were analysed by applying two multivariate methods: two-way indicator species analysis(TWINSPAN) for classification and detrended canonical correspondence analysis(DCCA) for ordination. The dominant tree species were Quercus mongolica, Acer pseudo-sieboldianum, Betula costata, and Acer mono in descending order. The pH ranges were 5.0 to 5.5 in the 15 sites near bog and 5.3 to 5.4 in the 3 sites within bog. The forest communities in Mt. Daeam were classified into Quercus mongolica-Acer mono, Quercus mongolica-Prunus sargentii, Quercus mongolica-Abies nephrolepis-Acer tschonoskii var, rubripes, and Quercus mongolica-Abies nephrolepis-Betula costata according to the TWINSPAN. The relationships between the distribution of dominant species of forest vegetation and soil in the forest of Mt. Daeam were investigated by analyzing soil nutrition gradient. Quercus mongolica-Prunus sargentii forests were distributed in the good sites in nutrition levels of total nitrogen. cation exchange capacity. Mg^++ and Ca^++ but Quercus mongolica-Abies nephrolepis-Betula costata forests in the poor sites in the nutrition levels.

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

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.

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.