• Korean Journal of Plant Resources
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• v.32 no.5
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• pp.463-470
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• 2019

Wild-simulated ginseng is requires standard establishment on location environment for long-term and eco-friendly cultivation. The this study was carried out to investigate the correlation between growth characteristics and location environment of wild-simulated ginseng for selection of suitable cultivation area. Samples were collected from a 9 site of wild-simulated cultivation area and examined growth characteristics and location environment. Correlation coefficient between growth characteristics and location environment was analyzed using Spearman's rank correlation. The growth of wild-simulated ginseng was shown significantly higher in Geochang and Hamyang cultivation area. The results of correlation analysis was shown significantly correlation with percentage of conifer, total diameter at breast height, soil pH, K, Ca and Mg. The results of this study was clearly investigated the correlation between growth characteristics and location environment of wild-simulated ginseng, which is considered to will provide understanding for selection suitable cultivation area of wild-simulated ginseng.

• The Korean Journal of Ecology
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• v.24 no.3
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• pp.149-156
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• 2001

Zostera caespitosa Miki has been identified to be distributed along the seacoasts of Korea and Japan. This study was intended to clarify the morphological characters and the habitat characteristics of Korean Z. caespitosa. It was confirmed that Z. caespitosa is distributed along the seacoasts of South, Yellow and East Seas of South Korea. The habitats were located in the bay and port with the depth varying from 2.5 to 5.2 m. The habitats of Z. caespitosa were rather deeper than that of mixed bed with Z. marina. The sediment in the habitats was composed of well-sorted fine sand or muddy sand. Z. caespitosa showed marked differences in several morphological characters among sites. Morphology of Z. caespitosa varied with water depths, grain size and organic contents of sediments. Flowering shoots occurred by water temperature of 6.0∼13.7℃ from January to early April.

• Journal of The Korean Society of Grassland and Forage Science
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• v.8 no.2
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• pp.117-122
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• 1988

다른 生長條件(growth chamber, outdoor)과 室素施肥條件(N O, N 60kg $ha^{-1}$에서 자란 perennial ryegrass잎에 있어서 葉伸長率(LER)과 伸長部位의 空間的 移動 및 細胞의 伸長등을 알아보고자, 잎 基部내 伸長部位의 0~30mm에 pin 처리를 하고 일정시간후 pin hole의 이동거리로서 生長을 조사하였으며 표면복제방법에 의해 細胞의 길이를 측정하였다. Growth chamber에서 자란 목초의 LER은 25.2mm day$^{-1}$(outdoor 목초에 비해 54.6% 증가), 생육의 공간분포는 基部로부터 24mm까지, 최대생육은 10~13mm에서, 세포신장은 20mm까지로 관찰되었다. Outdoor 목초는 LER 16.3mm, 생육분포는 17mm까지, 최대생육은 5~8mm에서, 세포신장은 14mm까지였다. 질소시비구 목초의 LER은 30.3mm day$^{-1}$(무시비구 목초에 비해 61.2% 증가), 생육분포는 基部로부터 27mm까지, 최대생육은 13~15mm에서, 세포신장은 21mm까지였으며, 질소무시비구 목초는 LER 21.3mm, 생육 분포는 21mm까지, 최대생육은 8~11에서, 세포신장은 16mm까지였다. Ligule 부위의 세포길이는 현저히 짧아졌으며, LER이 빠를때 伸長部位내 生育의 移動速度도 빨랐다.

• Korean Journal of Environmental Biology
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• v.20 no.1
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• pp.66-72
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• 2002

The intraspecific variability, habitats, and morphological characteristics of eelgrass (Zostera marina L.) along the eastern coast of Korea were examined during June to August 1998. Morphological characteristics including shoot height, leaf length, leaf width, number of leaf veins, and shape of leaf apex were measured, and eelgrass habitats were analyzed using character correlation, principal components and cluster analyses. The morphological characteristics varied with the habitat types and water depth. Eelgrass beds distributed mostly in lagoons, ports and bays along the east coast of the Korean peninsula. The quantitative morphological features that enabled recognition of the two phonetic groups were short- narrow and long-broad leaf types. Leaf apex in particular varied with the habitat characteristics.

• Korean Journal of Environment and Ecology
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• v.25 no.6
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• pp.903-910
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• 2011

The research was carried out in order to find climate factors which determine the distribution of Machilus thunbergii, and the potential habitats under the current climate and three climate change scenario by using classification tree (CT) model. Four climate factors; the minimum temperature of the coldest month (TMC), the warmth index (WI), summer precipitation (PRS), and winter precipition (PRW) : were used as independent variables for the model. The model of distribution for Machilus thunbergii (Mth-model) constructed by CT analysis showed that minimum temperature of the coldest month (TMC) is a major climate factor in determining the distribution of M. thunbergii. The area above the $-3.3^{\circ}C$ of TMC revealed high occurrence probability of the M. thunbergii. Potential habitats was predicted $9,326km^2$ under the current climate and $61,074{\sim}67,402km^2$(South Korea: $58,419{\sim}61,137km^2$, North Korea: $2,655{\sim}6,542km^2$) under the three climate change scenarios (CCCMA-A2, CSIRO-A2, HADCM3-A2). The Potential habitats was to predicted increase by 51~56%(South Korea: 49~51%, North Korea: 2~5%) under the three climate change scenarios. The potential expand of M. thunbergii habitats has been expected that it is competitive with warm-temperate deciduous broadleaf forest. M. thunbergii is evaluated as the indicator of climate change in Korea and it is necessary for M. thunbergii to monitor of potential habitats.

• Korean Journal of Environment and Ecology
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• v.14 no.3
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• pp.205-211
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• 2000

본연구는 조경소재로 이용가능성이 크지만 현재 자생지가 파괴되어 복원이 요구되고 있는 야생자란의 대량번식을 위해 무균배양시 배지 내 담함량의 변화와 펩톤, 트립톤 등의 첨가가 종자발아와 계대배양 후 유식물의 생육에 미치는 영향을 알아보고자 실시하였다. 배지 내 펩톤과 트립톤의 첨가는 발아에 영향을 주지는 않았지만, 당의 함량은 그 농도가 10g/L까지 증가함에 따라 발아율을 높였다. 또한 발아 후 유식물의 생육시 당의 첨가는 뿌리의 생육을 두드러지게 향상시켰으며, 생체중도 거의 2~3배정도 많았다. 하이포넥스 배지(대조구)에서는 높은 발아율을 보였지만 유식물의 생육은 트립톤 첨가배지(2g/L)에서 많았는데 엽수, 뿌리수, 엽장 근장, 생체중 등이 모두 다른 처리구의 2~3배에 이르는 초기생육을 보였다. 계대배양 이후의 생육상은 펩톤 첨가배지에서 가장 많은 생육량을 보였는데 특히 엽장과 엽폭 그리고 근장이 다른 처리구보다 월등히 높은 경향을 나타냈다. 생체중도 한 개체당 0.18g으로 가장 높게 나타나 펩톤의 첨가가 계대배양 이후의 생육을 크게 촉지시키는 것으로 나타났다. 결론적으로 하이포넥스 배지에 트립톤 2g/L를 첨가하였을 때 발아율과 유식물의 생육이 다른 배지에 대해 매우 양호한 것으로 나타나 자생 자란의 종자발아용 배지로 가장 적당한 것으로 사료된다. 그리고 이후 계대배양시에는 펩톤의 첨가 (3g/L)가 유식물의 생육을 가장 촉진시키는 것으로 나타났다.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2020.08a
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• pp.98-98
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• 2020

본 연구의 목적은 약재로 사용되는 천궁 중 토천궁(Ligusricum chuanxing Hort.)에 대한 지역별 생육환경을 확인하고 이에 따른 지상부 및 지하부 생장과의 상관관계를 규명하여 토천궁의 적정 재배지역 확인 및 지속 가능한 안정적인 한약재 생산에 대한 기초자료로 사용함에 있다. 토천궁이 주로 재배되고 있는 봉화군, 영양군, 평창군과 더불어 기후변화에 의한 재배지 이동을 고려하여 고위도 지역인 인제군을 포함한 4지역의 재배지를 선정하였으며, 생육특성을 비롯 기상 및 토양환경을 분석하여 토천궁의 생육특성과의 상관관계를 분석하였다. 4지역의 재배지 중 지상부와 지하부의 전체적인 생육은 평창지역에서 유의적으로 높게 확인되었다. 그리고 생육특성과 기상환경과의 상관관계에서 대기 및 토양온도가 지상부의 전체높이, 줄기직경, 지하부의 생육특성과 P < 0.01수준에서 유의적인 음의 상관관계, 잎의 길이 및 너비와는 양의 상관관계를 보였다. 또한 일사량이 높아질수록 잎의 크기를 제외한 생육특성이 양의 상관관계를 나타냈는데 이는 대기 및 온도의 상승으로 인한 잎의 증발산율 상승과 일사량에 따른 잎의 광합성량의 차이에 의한 결과라 사료된다. 또한 토양특성과의 상관관계에서 OM과 N, P, K는 지상부의 전체 높이와 줄기 직경을 비롯한 지하부의 생육특성과 음의 상관관계를 보였는데 근권의 토양시료를 사용하여 분석한 것이라 실질적으로 토천궁의 생육에 필요한 토양의 성분이 OM과 N, P, K이며, 토천궁에 의해 흡수되었다고 판단되는데 생육이 가장 우수했던 평창지역 토양 내 OM(1.69%)과 N(0.09%), P(897.72mg/kg), K(0.21cmol⁺/kg)의 수치가 타 지역 대비 상대적으로 낮게 측정된 결과가 본 실험에서 확인된 생육에 대한 OM, N, P, K의 함량과 부의 상관관계를 지지하며, 본 연구의 결과는 향후 토천궁의 재배지 선정 및 재배기술 정립에 활용할수 있을 것이라 사료된다.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10c
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• pp.490-492
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• 2004

식물의 생육지에 대한 정보는 여러 연구 분야에서 유용하게 사용될 수 있다. 특히, 생육지의 정보 중 서식지의 위치에 대한 정보는 식물의 특성을 분석하고, 분포나 통계에 널리 이용되기도 한다. 본 연구에서는, 식물의 서식지 정보에 대해 GIS 기법을 이용하여 식물별로 지도상에 표시하고 분포를 확인할 수 있는 생태 정보 시스템을 개발하였다. 남한지역의 수생식물을 대상으로 GIS 좌표정보를 바탕으로 시스템을 구축하였으며, 채집정보가 입력되면 좌표값을 바탕으로 지도상에 자동으로 표시하였다. 근접지역의 채집정보가 누적이 되면 화면상에 중첩되어 표시되는 문제를 해결하기 위해. '동전쌓기방식'이라는 새로운 알고리즘을 개발하여 사용하였다. 또한, 지역에 대한 상세한 브라우징을 위해 확대/축소 및 위치 이동을 통해 생태 정보를 자세히 볼 수 있는 기능을 가지고 있다.

• Journal of Wetlands Research
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• v.12 no.3
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• pp.49-56
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• 2010

Euryale ferox is only annual hydrophyte among endangered plants in Korea and its seed is high valuable medicinal material. This studies were carried to find out key factors that made E. ferox endanger in Korea and to apply the results for effective management of the natural wetlands inhabited by E. ferox. We investigated the distributed sites reported by previous studies and classified the distribution-affected factors into three categories, eutrophication(hypothesis 1), soil accumulation(hypothesis 2) and increasing of water level(hypothesis 3) in the habitat. These three hypotheses were tested in the field and explained the results with the morphological characteristics of seed germination stages of E. ferox. The geographical distribution ranges of E. ferox diminished at a rate of $1^{\circ}$ latitude with about 10 natural wetlands for last 30 years. Water eutrophication in the wetland had a positive effect on the establishment of E. ferox. But higher in soil accumulation and water depth, then lower in the establishment rate of E. ferox. These results indicate that water depth in the wetland must be below 50cm during the germination season, especially in May and emergent hydrophytes filter zone is need to protect soil accumulation from soil erosion within its watershed for the effective management of wetland with E. ferox.

• Korean Journal of Environment and Ecology
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• v.38 no.4
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• pp.388-404
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• 2024

The focus of conserving plant diversity at the national level includes endemic species restricted to specific regions. This study thus aimed to investigate and evaluate the current distribution status of the Pulsatilla tongkangensis Y.N. Lee & T.C. Lee, one of Korea's endemic plants. The study also examined the vegetation environment of its habitat and assessed the structure of each population. Furthermore, the performance variable of each population was comparatively evaluated, and its annual growth characteristics were also observed. The distribution area of the P. tongkangensis is largely divided into limestone cliffs, ridge rocks, mountain peaks in limestone regions, and sandy soil areas resulting from weathering. Plants in the same distribution area were categorized based on their geographical location, which reflected their respective habitats. According to the population structure evaluated using the number of measured leaves numbers, the plants were categorized into stable and relatively unstable populations. A relatively young population was observed at the top of mountains and rocky ridges of limestone areas and sandy soil areas resulting from weathering. The number of mature individuals was the highest in the population observed around limestone cliffs. In contrast, the population near the top of the limestone mountain range had more leaves , but the plants were of short stature and had the fewest inflorescences. The individuals distributed in limestone cliffs grew, produced, and dispersed seeds for an extended period following establishment. The growth of individuals was limited due to environmental factors in the habitat of distribution areas, including ridges, mountain tops in limestone regions, and sandy soil areas resulting from weathering. It was assessed to have a comparatively brief life cycle compared to that of the plants found on limestone cliffs. P. tongkangensis began flowering in early spring, and both fruit maturation and seed dispersal were completed before the onset of summer. The habitats were determined to receive around seven hours of sunlight per day during the summer, which was considered suitable for establishing a life cycle for the P. tongkangensis, a species requiring strong sunlight for growth to establish and success in a dry environment. Considering the status data gathered from this study, the P. tongkangensis was classified as an endangered species (EN). In addition, the collected data are expected to provide important information for the IUCN Red List of Threatened Species. Therefore, we proposed that the P. tongkangensis holds significant value as a core distribution site, given the observation of species with diverse characteristics on limestone cliffs in Pyeongchang-gun and Jeongseon-gun, Gangwon-do.