• 식물분류학회지
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• 제50권3호
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• pp.333-342
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• 2020

Despite poorly documented species delimitation and unresolved taxonomic nomenclature, four species of Symplocos (S. coreana, S purnifolia, S sawafutagi, and S. tanakana) have been described in Korea. In this study, we carried a comparative wood anatomy analysis of all four species of Korean Symplocos to understand the wood anatomical variations among them. The results of this study indicated that Korean Symplocos are comparatively indistinguishable in terms of their qualitative wood features, except for exclusively uniseriate rays present in S. purnifolia instead of uniseriate to multiseriate in other three species. Nevertheless, differences are noticed in quantitative wood variables such as the vessel density, vessel size, and ray density. The vessel density of S. purnifolia is more than twice as high as those of S. sawafutagi and S. tanakana. In contrast, the vessel circumference and diameter on both plants of S. sawafutagi and S. tanakana is nearly twice as large as those of S. purnifolia. Symplocos coreana has characteristic intermediacy between these two groups in terms of vessel features and is closer to S. purnifolia in terms of its ray density level. A cluster analysis based on a paired group (unweighted pair-group method with the arithmetic mean, UPGMA) algorithm using the Euclidean similarity index clearly differentiates S. purnifolia from the remaining species, representing the first branch of the phenogram.

• Journal of Ecology and Environment
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• 제35권3호
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• pp.157-166
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• 2012

Many models intending to explain the latitudinal gradient of increasing species diversity from the poles to the equator are presented, which are a formalisation of the species-energy hypothesis. The model predictions are consistent with patterns of increasing species number with increasing mean air or water temperatures for plants and animals. An increase in species richness is also correlated with net primary production or the Normalised Difference Vegetation Index. This implies that increased availability of resources favours increased diversity capacity. The explanatory variables included in the biodiversity prediction models represent measures of water, energy, water-energy, habitat, history/evolution and biological responses. Water variables tend to be the best predictors when the geographic scope of the data is restricted to tropical and subtropical areas, whereas water-energy variables dominate when colder areas are included. In major models, about 20-35% of species in the various global regions (European, Africa, etc.) will disappear from each grid cell by 2050 and >50% could be vulnerable or threatened by 2080. This study provides good explanations for predictive models and future changes in biodiversity depending on various scenarios.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2022년도 추계학술대회
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• pp.48-48
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• 2022

Ethnobotany is an interdisciplinary science at the intersection of botany and ethnology. Currently, there is a sharply increasing need for the study and conservation of traditional knowledge about plants. The loss of traditional sources, knowledge, and practices in using plants is caused by the growth of technologies in all branches of production, widespread urbanization, and globalization of the economy. This study was been conducted to collect and analyze the Koryoins (Koryo saram) traditional ethnobotanical knowledge, living in Uzbekistan, whose number 174,200 people. They are the descendants of Korean immigrants to the Russian Far East, who ended up in Central Asia as a result of the forced resettlement in 1937. In the processing of collected data, four main categories of uses were defined - Alimentary, Medicinal, Household/Handicraft, and Others. For quantitative data analysis, synthetic indices were used - RFC (Relative Frequency of Citation) and CI (Cultural Importance Index), which are commonly applied to assess the importance of plants. The respondents mentioned 72 plants belonging to 28 botanical families. A significant part of them was cultivar plants. The category that had the largest number of plants mentioned by the respondents was the Alimentary use category (51). According to quantitative indices rates, the most important plants are traditionally used for food. A comparison of ethnobotanical knowledge was made with the collected data of this study and Korean traditional knowledge.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2020년도 춘계학술대회
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• pp.36-36
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• 2020

Symplocos Jacq. including about 350 species is the sole isolated genus of the family Symplocaceae. Despite poorly documented species delimitation and unresolved taxonomic nomenclature four species of Symplocos (S. coreana, S purnifolia, S sawafutagi, and S. tanakana) have been described in Korea. In this study, we carried the comparative wood anatomy of all the four species of Korean Symplocos to understand the wood anatomical variations within these four species. The result of this study indicated that Korean Symplocos are comparatively indistinguishable in terms of their qualitative wood features except for exclusively uniseriate rays present in S. purnifolia instead of uni- to- multiseriate in other three species. However, discrepancies are observed in quantitative wood variables such as vessel density, vessel size, and ray density. The vessel density of S. purnifolia (highest among the four species) is more than two times higher than the S. sawafutagi (lowest among the four species) and S. tanakana. On the other hand, vessel size is likewise reverse to the vessel number relationships i. e. vessel circumference and diameter in both planes of S. sawafutagi and S. tanakana is almost twice a larger than S. purnifolia. Interestingly, S. coreana remains in between of these two groups in terms of vessel features and closer to S. purnifolia in terms of ray density. The cluster analysis based on the paired group (UPGMA) algorithm using the Euclidean similarity index clearly differentiates S. purnifolia from the rest of the taxa representing the first isolated clade of the tree.

• 한국유기농업학회지
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• 제26권4호
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• pp.687-706
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• 2018

유기 농업은 토양에 물리적, 화학적 영향을 미칠 뿐 아니라 이에 따른 군집 구조와 생태적 영향을 통해 생물 다양성과 직접적으로 연관되어 있는 것으로 알려져 있다. 본 연구는 2017년 4월부터 10월까지 충청북도 괴산 내 유기 농법 및 관행 농법 시행 논과 밭에서 육상 및 저서 무척추동물상 모니터링을 수행하고 그에 따른 종 다양성의 변화를 비교 분석하였다. 그 결과, 네 곳에서 총 680종(14,371개체)이 확인되었으며 유기 농법을 시행하는 지역에서 더 많은 종 수가 확인되었다. 특히 개체 수에 따른 다양한 지수 분석을 시행한 결과, 유기 농법 시행 논에서 관행 농법 시행 논에 비해 약 40% 높은 다양성이 관찰되었고, 밭의 경우 유기 농법 시행 지역에서 약 10% 높은 다양성이 확인되었다. 종 풍부도의 경우 유기 농법 시행 논에서 약 60% 높게 나타났고, 유기 농법 시행 밭에서는 약 40% 높게 나타났다. 우점도와 균등도 지수 분석 결과, 관행 농법 시행 논에서만 낮은 균등도와 특정 종의 우점도가 높게 나타나 부분적인 우점화 현상이 나타나고 있음을 확인하였다. 종 분포의 경우 네 곳 모두에서 노린재목, 파리목, 거미목의 다양성이 가장 높게 나타났으며, 개체 수의 경우 유기 농법 시행 지역에서는 노린재목, 파리목, 거미목, 벌목의 개체 수가 가장 많았고, 관행 농법 시행 지역에서는 파리목, 노린재목, 거미목, 딱정벌레목의 개체 수가 높게 나타났다.

• 한국환경복원기술학회지
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• 제23권1호
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• pp.77-87
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• 2020

National parks and other protected areas often do not adequately protect national biodiversity because they were originally created for socio-economic and/or aesthetic values. The Korean government has committed to expanding the extent of protected areas to fulfill its commitments to the Aichi Biodiversity Convention. To do so, it is necessary to quantify the current levels of biodiversity representation within existing protected areas and to identify additional conservation needs for vulnerable species and ecological systems. In this study, we assess the proportion of species ranges found in South Korea's protected areas, for the species documented in the 3^rd National Ecosystem Survey. We modeled the range distribution of 3,645 species in the following taxonomic groups; plants (1,545 species), mammals (35), birds (132), herptiles (35), and insects (1,898) using the MaxEnt species distribution model and calculated how much of each species' range is within protected areas. On average, 17.4% of plant species' ranges are represented in protected areas, while for mammals and insects an average 12.0% is currently conserved. Conservation representation for herptiles averages 9.3%, while it is 8.6% for birds. Although large proportions of species that have restricted distributions should be represented in protected areas, 17 plant species, two insects (Parnassius bremeri and Lasioglossum occidens), and one bird species (Phylloscopus inornatus) with ranges smaller than 1,000 ㎢ have less than 10% of their ranges within protected areas. Establishing specific conservation goals such as the protection of endangered species or vulnerable taxonomic groups will increase the efficiency of the biodiversity conservation strategies. In addition, lowland coastal areas are critical for biodiversity conservation because the protected areas in South Korea are mainly composed of high mountainous areas.

• 환경영향평가
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• 제24권6호
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• pp.593-606
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• 2015

녹색도시지수(GCI), 환경성과지수(EPI), 도시생물다양성지수(CBI)는 환경적 측면에서 도시의 객관적 평가를 위해 국제적으로 활발히 활용되고 있다. 하지만 인구밀도나 도시규모 등 도시의 특성이 다른 국내 상황에 이들을 직접 적용하는 것은 어려움이 있다. 따라서, 본 연구는 도시의 환경개선과 생물다양성 향상을 위하여 지자체 스스로 환경문제를 진단하고 문제점을 도출하여 환경정책으로 활용 가능한 한국형 도시평가지표 개발을 목적으로 하고 있다. 이를 위하여 기존에 사용되는 국제지표들의 장단점을 분석하고, 이를 토대로 한국적 상황에 부합하는 지표를 도출하였다. 지표는 생물다양성, 생활환경, 생태계서비스, 행정 및 관리 4개 영역 20개 항목으로 구성된 한국형 '지속가능한 도시의 평가지표(ESCI)'를 개발하였으며, 도시생태현황지도가 작성된 서울, 인천, 수원, 원주, 계룡 등 5개 도시에 적용하였다. 그 결과, 제시된 한국형 지속가능한 도시의 평가지표는 대도시의 경우 거의 모든 항목을 적용할 수 있었으나 중소도시는 일부만 적용할 수 있었다. 지표 적용을 모든 도시로 확대하기 위해서는 지자체별로 통일된 도시생태 현황지도의 작성과 필요한 자료구축이 선행되어야하며, 도시규모 및 자료구축 수준에 따라 지표 항목을 점진적으로 적용하는 것이 바람직하다.

• Journal of Plant Biotechnology
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• 제5권3호
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• pp.137-142
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• 2003

The morphology of the leaves and the flowers of angiosperms exhibit remarkable diversity. One of the factors showing the greatest variability of leaf organs is the leaf index, namely, the ratio of leaf length to leaf width. In some cases, different varieties of a single species or closely related species can be distinguished by differences in leaf index. To some extent, the leaf index reflects the morphological adaptation of leaves to a particular environment. In addition, the growth of leaf organs is dependent on the extent of the expansion of leaf cells and on cell proliferation in the cellular level. The rates of the division and enlargement of leaf cells at each stage contribute to the final shape of the leaf, and play important roles throughout leaf development. Thus, the control of leaf shape is related to the control of the shape of cells and the size of cells within the leaf. The shape of flower also reflects the shape of leaf, since floral organs are thought to be a derivative of leaf organs. No good tools have been available for studies of the mechanisms that underlie such biodiversity. However, we have recently obtained some information about molecular mechanisms of leaf morphogenesis as a result of studies of leaves of the model plant, Arabidopsis thaliana. For example, the ANGUSTIFOLIA (AN) gene, a homolog of animal CtBP genes, controls leaf width. AN appears to regulate the polar elongation of leaf cells via control of the arrangement of cortical microtubules. By contrast, the ROTUNDIFOLIA3 (ROT3) gene controls leaf length via the biosynthesis of steroid(s). We provide here an overview of the biodiversity exhibited by the leaf index of angiosperms. Taken together, we can discuss on the possibility of the control of the shapes and size of plant organs by transgenic approaches with the results from basic researches. For example, transgenic plants that overexpressed a wildtype ROT3 gene had longer leaves than parent plants, without any changes in leaf width. Thus, The genes for leaf growth and development, such as ROT3 gene, should be useful tools for the biodesign of plant organs.

• 한국식물생명공학회:학술대회논문집
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• 한국식물생명공학회 2003년도 식물바이오벤처 페스티발
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• pp.49-55
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• 2003

The morphology of the leaves and the flowers of angiosperms exhibit remarkable diversity. One of the factors showing the greatest variability of leaf organs is the leaf index, namely, the ratio of leaf length to leaf width. In some cases, different varieties of a single species or closely related species can be distinguished by differences in leaf index. To some extent, the leaf index reflects the morphological adaptation of leaves to a particular environment. In addition, the growth of leaf organs is dependent on the extent of the expansion of leaf cells and on cell proliferation in the cellular level. The rates of the division and enlargement of leaf cells at each stage contribute to the final shape of the leaf, and play important roles throughout leaf development. Thus, the control of leaf shape is related to the control of the shape of cells and the size of cells within the leaf. The shape of flower also reflects the shape of leaf, since floral organs are thought to be a derivative of leaf organs. No good tools have been available for studies of the mechanisms that underlie such biodiversity. However, we have recently obtained some information about molecular mechanisms of leaf morphogenesis as a result of studies of leaves of the model plant, Arabidopsis thaliana. For example, the ANGUSTIFOLIA (AN) gene, a homolog of animal CtBP genes, controls leaf width. AN appears to regulate the polar elongation of leaf cells via control of the arrangement of cortical microtubules. By contrast, the ROTUNDIFOLIA3 (ROT3) gene controls leaf length via the biosynthesis of steroid(s). We provide here an overview of the biodiversity exhibited by the leaf index of angiosperms. Taken together, we can discuss on the possibility of the control of the shapes and size of plant organs by transgenic approaches with the results from basic researches. For example, transgenic plants that overexpressed a wild-type ROT3 gene had longer leaves than parent plants, without any changes in leaf width. Thus, The genes for leaf growth and development, such as ROT3 gene, should be useful tools for the biodesign of plant organs.

• 한국습지학회지
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• 제5권2호
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• pp.57-65
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• 2003

This study was corried out to provide basic data for water analysis biodiversity, Actual vegetation map, flora and fauna on the Sanchon-tideland(Geojaesi), Doma-tideland(Namhaegun) in Kyungsangnamdo from august 2002 to February 2003. This tidelands was very broad and was being reclaimed. Therefore, it was anxious about destroying the habitat of the water birds. Since the water temperature was influenced by the surrounding air, it was highest in summer and lowest in winter. pH value and DO concentration of the water was highest in winter in the Sanchon-tideland and in surmmer in the Doma-tideland. COD concentration was lowest in winter in two tidelands. SS concentration was highest in summer. T-P and T-N concentration were very low but decreased with the seasonal change from summer to winter. Vascular plants of this area consist of 11 varieties, 67 species, 64 genera, 29 families(Sanchon-tideland) and 1 forma, 11varieties, 62 species, 64 genera, 30 families(Doma-tideland). The predominant community of this area, Phragmites communis Community were found on the seashore. The total insect specimens were classified into 120 species, 48 families, 10 orders(Sanchon-tideland) and perdominant species were Gabala argentata(Dominance 18.78%, Diversity index 1.75, Richness index 45.78). And 91 species, 40 families, 8 orders(Doma-tideland) and perdominant species were Sternolophus (Sternolophus) rufipes(Dominance 15.47%, Diversity index 1.47, Richness index 33.66). The total Fishes were classified into 3 species, 2 families, 1 order and Amphibia were 3 species, 2 families, 1 order. And Salicomia herbacea should be worthwhile species to conserve in this area. Because the water birds lived in The Tideland Sanchon and Doma, it was considered that it was necessary to preserve them.