• 환경위생공학
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• 제5권1호
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• pp.14-27
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• 1990

본 연구는 1979년 6월부터 1981년 5월까지 4회(10일)에 걸쳐 평일도의 식생을 생태학적으로 조사한 것으로 본도의 식물은 총 80과 172속 173종 21변종 4품종, 199종이었으며 상록활엽수는 사스레피나무, 마삭줄을 비롯하여 총 11종으로 섬 전체의 상록활엽수의 분포상태는 특히 빈약하였다. 또한 본도는 동백나무(흉고 직경 30~35cm), 든나무, 사스레피나무, 마삭줄과 같은 상록활엽수가 우점종이었던 것이 대표적인 갑섭(신탄용, 건책용, 방목, 농지리용)에 의해 현재와 같은 10~20년생 곰솔림을 우점종으로 하는 대위적인 천이가 일어날 것으로 생각된다. 특히 높은 인구밀도와 취농율, 경작면적의 증가로 인하여 식물이 심하게 파괴된 것으로 생각되며 한편 월송리의 곰솔림은 보호해야할 가치가 있다고 생각된다. 해안가 식물은 5종(순비기, 해당화, 햇보리사초, 갯맷꽃, 갯방풍)으로 월송리, 동백리, 사동리에 이르는 백사장 부근에 분포되고 있었다.

• 한국환경복원기술학회지
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• 제4권1호
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• pp.57-66
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• 2001

The floating islands have been constructed for the water quality improvement and the biodiversity conservation in an disturbed aquatic ecosystem. We made floating islands consisted of a special float and substrates of coconut fibers implanted with four emergent macrophytes such as Phragmites australis, Zizania latifolia, Iris pseudoacorus, Typha angustifolia. Vegetation structure and plant growth were compared between on the floating islands and on ground in order to select suitable plants for the construction of floating islands. Emergent-macrophytic vegetation on the floating islands showed lower coverages and higher plant biodiversity due to natural introduction of various hydrophytes and hygrophytes. Shoot density was increased on floating islands except for Zizania latifolia. From the point of coverage and density of plants, Phragmites australis and Iris pseudoacorus were suitable for floating islands. Total biomass of emergent macrophytes was decreased on the floating islands. The belowground/aboveground biomass ratio of floating islands was higher than that of the ground. Out of planted macrophytes, Iris pseudoacorus with a high belowground/aboveground biomass ratio could be evaluated a suitable plant for the floating islands because a plenty of its root is profitable to adapt with the nutrient-limited environment of floating islands.

• 한국환경과학회지
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• 제23권1호
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• pp.39-46
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• 2014

This study surveyed Abies koreana to identify the correlation between its vegetation structure according to its slope direction and seedling establishment in a bid to build basic research data on the changes and conservation of the A. koreana in Hallasan Mountain. The findings of its vegetation structure revealed that in both areas, Importance value was given to the A. koreana for its tree layer, the Taxus cuspidata for its shrub layer, and the Sasa quelpaertensis for its herb layer. However, in the Youngsil area with the tree layer, high importance was given to deciduous broad-leaved trees such as Prunus maximowiczii, Quercus mongolica, and the young species of the A. koreana in the shrub layer that can maintain the A. koreana forest's greater importance in the Jindallebat than in the Youngsil. Thus, the A. koreana forest in the Jindallebat is believed to lastlonger. The findings of correlation between the quantity of seedlings and their location by area revealed that in each tiny quadrat, the A. koreana seedling averaged 5.3 in the Youngsil and 2.9 in the Jindallebat. Both areas were all found to have a positive correlation in terms of rock exposure ratio and dead tree ratio as well as a negative correlation with regard to the cover degree of S. quelpaertensis, the canopy gap, the total vegetation, and the herb layer. It was found that the cover degree of the herb layer in the Youngsil and the S. quelpaertensis in the Jindallebat had the largest impact on the A. koreana seedlings.

• 한국환경복원기술학회지
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• 제25권3호
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• pp.29-45
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• 2022

For biodiversity conservation, the importance of beta-diversity which is changes in the composition of species according to environmental changes has become emphasized. However, given the systematic investigation of species distribution and the accumulation of large amounts of data in the Republic of Korea(ROK), research on the spatialization of beta-diversity using them is insufficient. Accordingly, this research investigated the applicability of the Generalized Dissimilarity Modeling(GDM) to ROK, which can predict and map the similarity of compositional turnover (beta-diversity) based on environmental variables. A brief overview of the statistical description on using GDM was presented, and a model was fitted using the flora distribution data(410,621points) from the National Ecosystem Survey and various environmental spatial data including climate, soil, topography, and land cover. Procedures and appropriated spatial units required to improve the explanatory power of the model were presented. As a result, it was found that geographical distance, temperature annual range, summer temperature, winter precipitation, and soil factors affect the dissimilarity of the vegetation community composition. In addition, as a result of predicting the similarity of vegetation composition across the nation, and classifying them into 20 and 100 zones, the similarity was high mainly in the central inland area, and tends to decrease toward the mountainous areas, southern coastal regions, and island including Jeju island, which means the composition of the vegetation community is unique and beta diversity is high. In addition, it was identified that the number of common species between zones decreased as the geographic distance between zones increased. It classified the spatial distribution of plant community composition in a quantitative and objective way, but additional research and verification are needed for practical application. It is expected that research on community-level biodiversity modeling in the ROK will be conducted more actively based on this study.

• 농업생명과학연구
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• 제46권4호
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• pp.57-68
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• 2012

본 연구는 관광객의 증가 및 개발로 인해 식생의 파편화가 진행되고 있는 해안 곰솔림을 대상으로 효율적인 보전과 관리를 위한 기초자료를 제공하기 위하여 곰솔 우점림에 조사구 70개($20{\times}20m$)를 설치하여 수행하였다. 경상북도 동부 해안가 곰솔림의 군집분석 결과 곰솔림은 3개의 군집(곰솔-소나무군집, 곰솔-아까시나무군집, 곰솔-소나무-팽나무군집)으로 구분되었으며, 다수응답순열절차 검정 결과, 군집은 유의성 있게 나타났다. 지표종 분석 결과, 유의한 종은 소나무, 작살나무, 노간주나무, 산철쭉 등 19종이 분석되었다. 곰솔림의 개체군 구조는 12~26 cm의 직경급이 우점하는 것으로 나타났으며 고봉형 양상(hump-shape pattern)으로 나타났다. 종다양도(H')는 목본층에서 $1.033{\pm}0.234{\sim}1.629{\pm}0.226$, 초본층에서 $2.448{\pm}0.232{\sim}2.545{\pm}0.318$ 사이로 나타났다.

• 한국환경생태학회지
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• 제20권3호
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• pp.281-288
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• 2006

본 논문은 2004년 3월부터 10월까지 가야산국립공원 지역에서 선택한 총 15개 조사 지역에서 외래식물과 귀화식물의 도시화지수를 분석하였다. 가야산국립공원의 외래식물은 총 88종류로 39과 72속 82종 5변종 및 1품종이 확인되었으며,그 중 귀화식물은 47종류로 확인되었다. 가야산국립공원 지역에서 귀화율은 4.06%,도시화지수는 17.74%로 나타났다. 귀화식물은 인위적 간섭을 받은 지역을 중심으로 분포하며 비교적 보전이 잘된 지역과 인위적 간섭이 없는 자연식생에서는 귀화식물의 분포를 확인하기 어려웠다. 원산지별로는 유럽과 북아메리카원산지인 귀화식물이 37종류, 72%로 가장 많게 나타났다. 국가 차원에서 외래종의 통합관리방안이 필요하지만 가야산국립공원의 외래종분포를 확인하여 지속적인 관리를 하는 것이 자생종의 보전과 보호에 있어서 매우 중요한 역할을 하게 될 것이다.

• 한국습지학회지
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• 제9권1호
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• pp.31-46
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• 2007

In this paper, the nature-based tourism is described as one of the tools to achieve sustainable development in small islands. The study was carried out at Ayer, Bidadari and Onrust Islands of Kepulauan Seribu chains at Jakarta Bay, Indonesia. While the historical records show that previous uses of such islands have started at sixteen century, tourism uses was started at the beginning of 1970s. Among nature-based tourism destination in Kepulauan Seribu chains, these islands are the famous destinations and received a lot of tourists. Tourism growth at these islands has stimulated development of numerous tourism facilities and infrastructure to meet visitor satisfaction. It is observed in this study that island's site-plan destination design has contributed to the successful and sustainability of tourism in small island. The key success lies on the successful integration and implementation of three substantial perspectives into practices, namely economic, ecosystem and social perspectives. First, in order to enhance economic benefits, a site-plan design allowing floating cottages establishment to extent room availability, to build strong images as tropical paradise islands, and to enhance tourist satisfaction with the objectives of improving income and sustaining tourist loyalty to the destination. This design is also reducing land risk from tourism impact and it becomes the significant key of second perspective, the ecosystem perspective. Moreover, the ecosystem perspective has been implemented through native vegetation preservation that led island's wildlife conservation and became potential tourism attraction. The design also develops effective mechanism to manage and regulate visitor flows by establishing visitor track corridors. In implementation, such corridor plays an important role to reduce tourist density in single places and therefore become instrument to reduce severe visitor impact to wildlife, vegetation and heritages of islands. Third, the social aspect of development allowing heritages to conserve and furthermore serve numerous benefits for education, socio-political, culture, and historical studies. Through this study, it is clear that the success of these islands to continuous tourism growth lies on the island's vision to integrate economic, ecosystem and social perspectives on tourism development.

• 대한지리학회지
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• 제49권1호
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• pp.18-31
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• 2014

이 연구에서는 제주도 지역에서 태풍에 의해 야기되는 조풍(潮風) 발생 및 식생에 나타난 피해의 시 공간적 특징을 밝히고자 하였다. 이를 위해 2012년 8월 하순 제주도를 강타한 태풍 볼라벤(BOLAVEN)의 통과시 기상자료를 분석하고 이후 야외답사를 수행하여 제주도 식생에 나타난 조풍해 정도를 조사하였다. 그 결과, 조풍해는 주로 제주도 남부 및 동부 해안지역에서 발생한 것으로 나타났으며, 태풍이 동반한 강한 남동풍과 상대적으로 적은 강수량이 그 원인으로 분석되었다. 조풍에 의해 해안에서 약 8km 범위 내의 삼나무(Cryptomeria japonica)와 해안지역의 곰솔(Pinus thunbergii)을 포함한 대부분의 식생이 피해를 입었으나, 그 피해정도 및 회복력은 수종별로 차이가 있었다. 조풍에 의한 식생 피해를 줄이기 위해서는 강풍성 마른 태풍이 접근 시 조풍해 발생을 예측하고 방제대책을 마련하는 것이 필요하다.

• 한국환경과학회지
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• 제14권9호
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• pp.817-825
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• 2005

The purpose of this study was to research about salt marsh flora and vegetation in the Dongjin-river estuary area where has a project for Sea Man Geum Reclaimed Land so that we can foster foundation on restoration of an ecological habitat, development of applicable plant and establishment of a conservation policy after deceloping the reclaimed land for salt marsh vegetation which has great value ecologically. In conclusion, we was distributed that there are 7 families 21 genera, 25 species, 2 varieties of vascular plant at the Dongjin-river estuary area which have 27 taxa in total and are $0.64\%$ among 4,191 of korean vascular plant. There are also 2 family, 2 genus, 2 species of a naturalized plant which are $1.1\%$ of indicator of a naturalized plant salt marsh vegetation of the downstream are very much affected by the time of inundation, tidal water so that a low degree of salt marsh has frequent flooding by sea water and has a pure group of Suaeda japonica. A Phragmites communis, Carex scabrifolia are distributed mainly around a waterway of salt marsh and Zoysia sinica, Atriplex subcordata, Phragmites communis are living in stock as forming into patch around medium salt marsh. Suaeda asparagoides, Phacelurus latifolius are living around a little high ground and a Phragmites communis is a behind vegetation of Phacelurus latifolius and a part of the Phragmites communis are living along with waterway in a salt marsh as a community. By the 2-M method twelve plant communities were recognized ; Suaeda japonica. Carex scabrifolia, Zoysia sinica, Artemisia scoparia, Phacelurus latifolius, Phragmites communis, Suaeda maritima, Suaeda japonica-Atriplex gmelini, Phragmites communis-Suaeda japonica, Suaeda japonica-Salicornia herbacea, Salicornia herbacea-Suaeda aspar-agoides and Scirpus planiculmis community. The actual vegetation map was constructed on the grounds of the communities classified and other data.

• 한국수자원학회논문집
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• 제33권5호
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• pp.581-592
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• 2000

본 연구에서는 식생된 개수로에서의 난류 구조와 부유사 이동을 수치모의하였다. 난류폐합식으로는 $\textsc{k}-\;\varepsilon$ 난류모형을 사용하였다. 수치모의를 통해 평균유속, 난류강도, 레이놀즈 응력, 난류에너지 생성 및 소멸의 분포를 계산하였으며, 기존의 실험결과와 비교하였다. 식생에 의한 항력으로 인하여 평균유속이 전반적으로 감소되었으며, 이에 따라 난류강도와 레이놀즈 응력의 분포 역시 약화되었다. 침수식생의 경우, 식생높이보다 높은 구간에서는 전단에 의한 난류에너지 생성이 지배적이며, 식생높이 보다 낮은 구간에서는 후류에 의한 난류에너지 생성이 지배적임을 확인하였다. 또한 정수식생의 경우, 전채 수심에 걸쳐 후류에 의한 난류에너지 생성이 지배적으로 발생하였다. 대체적으로 수치모의에 의한 결과가 실험값과 유사한 양상을 보이는 것이 확인되었다. 수치모형으로부터 계산된 난류동점성계수 분포를 이용하여 부유사 보존방정식을 수치해석하였다. 식생된 개수로에서의 부유사 농도는 일반 개수로에 비해 전 수심에 걸쳐 균일하게 분포하였다. 또한 식생밀도가 증가할수록 부유사량은 감소하며, 동일한 식생밀도에 대해서는 입자의 크기가 작을수록 부유사량이 증가함을 확인하였다.