가시오갈피(Acanthopanax senticosus)의 자생지 환경특성

천경식(Kyeong-Sik Cheon),한준수(Jun-Soo Han),장수길(Su-Kil Jang),유기억(Ki-Oug Yoo) 강원대학교 환경연구소 2010 Journal of the Environment Vol.7 No.-

This study intended to investigate environmental factors including soil and vegetation in order to understand the environmental and ecological characteristics of 4 different habitats of Acanthopanax senticosus. These habitats, according to investigations, are mostly located at elevation of 674 m to 1,242 m with angles of inclination ranging from 3 degree to 36 degrees. A total of 81 vascular plants are identified in 5 quadrates of 4 habitats. The importance value of Acanthopanax senticosus is 22.9%, and 5 highly ranked species such as Deutzia uniflora (18.1%), Deutzia glabrata (10.3%), Syringa patula var. kamibaysii (6.7%), Weigela subsessilis (5.6%) and Euonymus macropterus (5.1%) are considered to be an affinity with Acanthopanax senticosus in their habitats. The dominance species of the four habitats are represented as Comus controversa (33.8%) in the tree layer (T1), and Actinidia arguta (17.1%), Acer tegmentosum (13.8%) in the subtree layer (T2), and Astilboides tabularis (21.4%), Dryopteris crassirhizoma (11.0%) and Polystichum tripteron (6.7%) in the herbaceous layer (H). The degree of their average species diversity is 1.25, and that of dominance and evenness are 0.08 and 0.89, respectively. The average field capacity of soil is 32.1 %, soil pH is 5.98, and organic matter is 18.21%. Correlation coefficients analysis based on environmental factors shows that the negative correlated in coverage of Acanthopanax senticoslls-coverage of tree and subtree layer.

인공호 호소사면 나대지의 식물분포 특성과 녹화를 위한 식물 종 선정

천경식 ( Kyeong Sik Cheon ),김경아 ( Kyung Ah Kim ),서원복 ( Won Bok Seo ),장진환 ( Jin Hwan Jang ),유기억 ( Ki Oug Yoo ) 한국환경보건기술학회(구 한국환경복원녹화기술학회) 2010 한국환경복원기술학회지 Vol.13 No.2

Distributional characteristics of vascular plants and plants selection for revegetation in bare ground of lakeside was investigated in nine artificial lakes. The vascular plants were composed of 64 families, 194 genera, 268 species, 3 subspecies, 30 varieties, 3 forma, totaling 304 taxa. Dominant species of nine investigated areas were represented as Ambrosia trifida, Calystegia hederacea, Matricaria matricariodes, Xanthium italicum. Dominant species of three parts based on the location of artificial lakes were as follows: Ambrosia trifida, Bidens tripartita, Calystegia hederacea, Equisetum arvense, Setaria viridis, Spergula arvensis, Torilis japonica in northern part (Lake Paro and Soyang); Calystegia hederacea, Matricaria matricariodes, Rumex crispus, Xanthium italicum in middle part (Lake Chungju, Daecheong, Andong and Imha); and Ambrosia artemisiifolia, Bidens frondosa, Chenopodium glaucum, Miscanthus sinensis var. purpurascens, Persicaria pubescens, Setaria viridis in southern part(Lake Juam, Hapcheon and Jinyang). Among the 304 taxa, Korean endemic, endangered and rare plants were not investigated. The naturalized plants were 46 taxa, and life form was Th-R5-D4-e type. Above the results, Calystegia hederacea, Equisetum arvense, Xanthium italicum, Matricaria matricariodes, and Spergula arvensis were considered with proper species for revegetation in bare ground of lakeside in artificial lakes.

연구논문 : 노랑무늬붓곷(Iris odaesanensis Y.N.Lee) 자생지의 환경특성

천경식 ( Kyeong Sik Cheon ),한준수 ( Jun Soo Han ),서원복 ( Won Bok Seo ),김경아 ( Kyung Ah Kim ),유기억 ( Ki Oug Yoo ) 한국환경과학회 2010 한국환경과학회지 Vol.19 No.11

This study intended to investigate environmental factors including soil and vegetation in order to understand the environmental and ecological characteristics of 12 different habitats of Iris odaesanensis. These habitats, according to investigations, are mostly located at elevation of 280 m to 1,555 m with angles of inclination ranging from 2 degree to 30 degrees. A total of 273 vascular plants are identified in 23 quadrates of 12 habitats. Dominant species of woody plants in 12 habitats are represented as Quercus mongolica in the tree layer (TI) and the subtree (T2) layer, and Lespedeza maximowiczii, Lindera obtusiloba, Rhododendron schlippenbachii the shrub (S) layer. The importance value of Iris odaesanensis is 9.65%, as regards the herbaceous layer, and 6 highly ranked species such as Carex siderosticta (3.92%), Meehania urticifolia (2.67%), Spodiopogon cotulifer (2.58%), Aconitum pseudolaeve (2.51%), Carex bostrychostigma (2.28%) and Disporum smilacinum (2.09%) are considered to be an affinity with Iris odaesanensis in their habitats. The degree of their average species diversity is 1.32, and that of dominance and evenness are 0.08 and 0.89, respectively. The type of soil is sandy loam and loam, and the average field capacity of soil is 28.31%. Their average organic matter is 16.71%, soil pH 5.29, and available phosphorus is 9.29%. Correlation coefficients analysis based on environmental factors, vegetation and soil analysis shows that the coverage of Iris odaesanensis is correlated with pH and dominance, and species richness is positive related with species diversity.

백서향 자생지의 환경 및 생태 특성

천경식(Kyeong-Sik Cheon),김경아(Kyung-Ah Kim),옥길환(Gil-Hwan Ok),정희진(Hee-Jin Jeong),유기억(Ki-Oug Yoo) 한국원예학회 2012 한국원예학회 학술발표요지 Vol.2012 No.10

울릉도 미역고사리(Polypodium vulgare L.) 자생지의 입지환경특성

천경식 ( Kyeong Sik Cheon ),한준수 ( Jun Soo Han ),김경아 ( Kyung Ah Kim ),옥길환 ( Kil Hwan Ok ),유기억 ( Ki Oug Yoo ) 한국환경생태학회 2012 한국환경생태학회지 Vol.26 No.1

본 연구는 희귀식물로 지정되어 있는 울릉도 미역고사리의 자생지 환경을 조사하여 보전 및 복원 시 기초자료를 제공하고자 하였다. 조사결과 미역고사리의 자생지는 해발고도 410~748m 범위와 경사 12~80°의 암석지에 주로 생육하는 것으로 조사되었다. 식생분석결과 4개 지역의 10개 방형구내에서 조사된 관속식물은 총 66분류군이었다. 자생지 상층수목 중 교목층의 중요치는 고로쇠나무(49.52%)가 아교목층은 당마가목(28.99%)이 가장 높았으며, 관목층은 바위수국(51.99%), 섬쥐똥나무(8.82%), 너도밤나무(7.25%)가 높은 값을 보였다. 초본층은 미역고사리가 23.23%로 가장 높았으며, 다음으로는 큰두루미꽃(9.65%), 파리풀(9.23%), 관중(8.40%), 산꼬리사초(6.75%), 섬바디(5.42%) 등이 높은 값을 보여 이 종류들이 친화도가 높은 것으로 판단된다. 종다양도는 1.18로 산출되었으며, 우점도와 균등도는 각각 0.11와 0.84로 확인되었다. 토양분석 결과 토성은 사양토로 나타났으며, 포장용수량은 30.42%, 유기물함량은 17.95%, pH는 4.70으로 측정되었다. 환경특성과 식생 및 토양분석 결과에 기초한 상관분석에서는 종다양도와 종풍부도는 정의 상관관계를 보였고, 종다양도와 우점도 그리고 미역고사리의 피도와 종풍부도는 부의상관관계를 형성하였다. The habitats characteristics of Polypodium vulgare L. in Ulleung-do were investigated to compile basic data for conservation and restoration. Natural habitats were located at altitudes of 410~748m with inclinations of 12~80°. Sixty six vascular plants were identified from 10 quadrats in 4 habitats. Dominant species among the woody plants, based on importance value, were Acer pictum subsp. mono(49.52%) in the tree (T1) layer, Sorbus amurensis(28.99%) in the subtree (T2) and Schizophragma hydrangeoides(51.99%), Ligustrum foliosum(8.82%), Fagus engleriana(7.25%) in the shrub (S) layer. Importance value for members of the herb (H) layer were as follows: Polypodium vulgare 23.23%; Maianthemum dilatatum 9.65%; Phryma leptostachya var. asiatica 9.23%; Dryopteris crassirhizoma 8.40%; Carex shimidzensis 6.75% and Dystaenia takesimana 5.42%. The importance value of the last five species were high, so they were at affinity with Polypodium vulgare in their habitats. Species diversity was 1.18, and dominance and evenness were found to be 0.11 and 0.84, respectively. The soil types were sandy loam. Average field capacity was 30.42%, and the organic matter and pH were 17.95%, and 4.70. Correlation coefficients based on environmental factors, vegetation and soil analysis were showed that positive correlations between species diversity and species richness, whereas between species diversity and dominance, coverage of Polypodium vulgare and species richness were showed negative correlations.

가침박달 자생지의 환경특성

김경아(Kyung-Ah Kim),천경식(Kyeong-Sik Cheon),옥길환(Gil-Hwan Ok),정희진(Hee-Jin Jeong),유기억(Ki-Oug Yoo) 한국원예학회 2012 한국원예학회 학술발표요지 Vol.2012 No.10

강원도 동해안 3개 하천 하구역 일대의 식물상

정희진 ( Hee Jin Jung ),천경식 ( Kyeong Sik Cheon ),옥길환 ( Gil Hwan Ok ),유기억 ( Ki Oug Yoo ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2012 한국환경복원기술학회지 Vol.15 No.2

This study was carried out to investigate the flora of estuary regions, Namdaecheon, Jusucheon, and Maeupcheon, placed in the east coast of Gangwon-do. The vascular plants were summarized as 441taxa, including 90 families, 277 genera, 388 species, 2 subspecies, 35 varieties, and 6 forms. Number of species in each investigated region was 271taxa of Namdaecheon, 247taxa of Jusucheon, and 285taxa of Maeupcheon, respectively. Among the investigated 441taxa, 7 Korean endemic, 5 rare plants and 37 specially designated plants by Ministry of Environment were also included. Aquatic and hydrophyte plants were collected 41taxa, and the thinophyte and halophyte plants were investigated 22taxa. The naturalized plants were 59taxa, and the percent of naturalized plant species was estimated as 13.3%. Based on the floristic composition, Maeupcheon was estimated as well conserved estuary region among the investigated 3 rivers.

금강초롱꽃 자생지의 환경특성과 식생

장수길(Su-Kil Jang),천경식(Kyeong-Sik Cheon),정지희(Ji-Hee Jeong),김진수(Zin-Suh Kim),유기억(Ki-Oug Yoo) 한국원예학회 2010 원예과학기술지 Vol.28 No.3

특산 식물인 금강초롱꽃 자생지의 환경요인과 식생을 조사하여 보존 및 복원 시 기초자료를 제공하고자 하였다. 금강초롱꽃은 해발 580-1,396m에 위치하였고, 경사는 5-80˚로 대부분 북사면에 군락을 형성하였다. 10개 지역 32개 방형구를 조사한 결과 금강초롱꽃의 중요치는 8.87%로 가장 높았으며, 다음으로는 대사초(8.67%), 단풍취(7.10%), 실새풀(6.79%), 뱀고사리(5.33%), 노루오줌(3.11%) 등이 높게 나타나 이 종류들이 금강초롱꽃과 비슷한 환경을 선호하는 것으로 판단된다. 상층수목은 교목층에 신갈나무, 아교목층에 당단풍나무가 우점하였으며, 관목층에서는 철쭉과 메역순나무가 높은 출현 빈도와 피도를 보였다. 종다양도는 평균 1.30, 우점도와 균등도는 각각 0.08과 0.88로 산출되었다. 토양의 토성은 사양토가 우세하였고, 포장용수량은 평균 23.95%로 확인되었으며, 유기물함량은 12.28%, pH는 5.79, 그리고 유효인산함량은 25.48㎍ · g?¹으로 나타났다. 환경특성과 식생조사 및 토양분석 결과를 바탕으로 한 상관분석에서는 상층수목의 피도가 종풍부도, 종다양도, 우점도, 균등도 및 금강초롱꽃의 피도와 높은 연관성을 보였다. This study intended to investigate the environmental factors including soil and vegetation in order to better understand the environmental and ecological characteristics of ten different habitats of Hanabusaya asiatica. These habitats, according to investigations, are mostly located on the slopes of mountains facing north at an altitude of 580 m to 1,396 m above sea level with angles of inclination ranging from 5 degrees to 80 degrees. A total of 146 vascular plant taxa are identified in 32 quadrates of the ten habitats. The importance value of H. asiatica is 8.87%, and 5 highly ranked species such as Carex siderosticta (8.67%), Ainsliaea acerifolia var. subapoda (7.10%), Calamagrostis arundinacea (6.79%), Athyrium yokoscense (5.33%), Astilbe rubra (3.11%) are considered to be an affinity with H. asiatica in their habitats. Dominant species of woody plants in ten habitats are represented as Quercus mongolica in tree layer (T1), Acer pseudo-sieboldianum in subtree layer (T2), Rhododendron schlippenbachii and Tripterygium regelii in shrub layer (S). The degree of their average species diversity is 1.30, and that of dominance and evenness are 0.08 and 0.88, respectively. The type of soil is sandy loam, loam and loamy sand, and the average field capacity of soil is 23.95%. Their average organic matter is 12.28%, soil pH 5.79, and available phosphorus is 25.48%. Correlation coefficients analysis based on environmental factors, vegetation and soil analysis shows that the coverage of tree layers is correlated with richness, diversity, dominance, evenness and coverage of H. asiatica.

강원대학교 춘천 캠퍼스 내 관속식물상

김경아(Kyung-Ah Kim),천경식(Kyeong-Sik Cheon),복영준(Yeong-Joon Pok),유승열(Seung-Yeol Yoo),김영훈(Young-Hun Kim),유기억(Ki-Oug Yoo) 강원대학교 환경연구소 2017 Journal of the Environment Vol.12 No.1

동강할미꽃 자생지의 환경 및 생태적 특성

유기억 ( Ki Oug Yoo ),천경식 ( Kyeong Sik Cheon ),장수길 ( Su Kil Jang ) 한국환경생태학회 2009 한국환경생태학회지 Vol.23 No.5

동강할미꽃 자생지(백운산, 마하리, 귤암리와 덕항산)의 환경특성을 파악하기 위하여 환경요인, 식생 및 토양분석을 실시하였다. 동강할미꽂 자생지는 해발 220-772 m에 위치하고, 경사는 41-85˚로 다양하였으며, 주로 북서사변에 분포하였다. 식생분석결과 10개 방형구내에서 조사된 분류군은 총 27종류였다. 중요치는 동강할미꽂이 9.65%였으며, 산거울(28.93%), 돌양지꽃(l6.55%), 돌단풍(7.09%), 기름나물과 그령(4.55%), 큰네잎갈퀴(3.90%) 등 6종류는 중요치가 높게 나타나 이 분류군들은 동강할미꽃과 친화도가 높은 것으로 생각된다. 종다양도는 평균 0.75이었고 우점도와 균등도는 각각 0.24와 0.85로 나타났다. 토양의 포장용수량은 평균 19.05%이었으며, 유기물 함량은 10.51%로 나타났고, pH는 7.43으로 자생지간에 비슷하게 나타났다. This is a study intended to investigate the environmental factors including vegetation and soil in order to better understand the environmental and ecological characteristics of four different habitats of Pulsatilla tongkangensis (Mt. Baekun, Maha-ri, Kyulam-ri and Mt. Deokhang). These habitats, according to investigations, are mostly located on the slopes of mountains facing northwest at an altitude of 220m to 772m above sea level with angles of inclination ranging from 41 degree to 85 degree. A total of 27 vascular plant taxa are identified in ten quadrates of the four habitats. The importance value of these plants is as follows: Pulsatilla tongkangensis is 9.65%; Carex humilis var. nana 28.93%; Potentilla dickinsii 16.55%; Mukdenia rossii 7.09%; Peucedanum terebinthaceum and Eragrostis ferruginea 4.55%; and Vicia venosa var. albiflora 3.90%. The importance value of these six species is high, so they are at affinity with P. tongkangensis in their habitats. The degree of their average species diversity is 0.75, and that of dominance and evenness 0.24 and 0.85, respectively. Their average field capacity of soil is 19.05%, organic matter 10.51%, and soil pH is 7.43, which are similar among their habitats.