• 해양환경안전학회지
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• 제28권1호
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• pp.10-18
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• 2022

선박을 통한 세계교역 증가에 따라 침입외래종(Invasive Alien Species, IAS)로 인한 해양생태계파괴 및 사회경제적 피해가 지속적으로 증가하고 있다. 특히 선체표면과 틈새구역(Niche Area)에 부착된 해양생물의 이동은 외래종침입 문제뿐만 아니라 선박의 마찰저항을 증가시켜 운항효율감소 및 온실가스배출 증가를 유발한다. 국제해사기구(IMO)는 최근 선체부착생물 통제 및 관리에 대한 지침 개정작업에 착수하였고 뉴질랜드와 미국 캘리포니아는 이미 자국법으로 선체부착생물 관리를 규제하고 있다. 본 논문에서는 국내에 입항하는 국제운항선 5척을 대상으로 선체부착생물 관리현황과 생물부착현황을 조사하였고, 생물부착종과 피도(Coverage)를 분석하여 생물부착단계 등급(Level of Fouling, LoF rank)을 평가하였다. 모든 선박에서 대형부착생물(Macrofouling)이 관찰되었고 특히 선수 스러스터(Bow thruster), 빌지킬(Bilge keels) 및 해수 흡입구 격자(Sea-chest gratings)와 같은 틈새구역의 대형개체(Macro organisms) 부착이 심각한 수준으로 나타났다. 본 연구에서는 국내 선체부착생물 관리방안을 제시하고, 실선대상 생물부착단계등급 적용 및 검사(Inspection) 방법 개선방안을 제안하고자 하였다.

• 한국환경복원기술학회지
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• 제19권2호
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• pp.19-39
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• 2016

This study was carried out to investigated the flora of Naknam-Jeongmaek, Korea. The survey sites were Gilmajae, Mt. Muryang, Mt. Yeohang, Mt. Muhak, Mt. Cheonju and Mt. Sineo. The flora were summarized, numbering 666 taxa including 112 families, 357 genera, 574 species, 4 subspecies, 73 varieties and 15 forms. The threatened species was Aconitum austrokoreense. The rare plants were 12 taxa including Asarum maculatum, Wikstroemia ganpi, Viola albida, Tricyrtis macropoda and so forth. The Korean endemic plants were 19 taxa including Salix koriyanagi, Thalictrum actaefolium var. brevistylum, Weigela subsessilis, Hosta minor and so forth. The specific plants by floristic region were 81 taxa including 38 taxa of grade I, 19 taxa of grade II, 16 taxa of grade III, 7 taxa of grade IV and 1 taxa of grade V. The naturalized plants were 32 taxa including Rumex crispus, Physalis angulata, Erechtites hieracifolia, Taraxacum officinale and so forth. The invasive alien plants were Ambrosia artemisiifolia and Aster pilosus.

• 한국환경복원기술학회지
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• 제20권5호
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• pp.15-41
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• 2017

The purpose of this study is to present the basic data for conservation of forest ecosystem by surveying and analysing the flora distributed in Nakdong-Jeongmaek Mountains, Korea. The numbers of flora were 901 taxa including 116 families, 433 genera, 790 species, 4 subspecies, 90 varieties, 15 forms and 2 hybrids. The threatened species was Pedicularis ishidoyana. The rare plants were 33 taxa including Pseudostellaria sylvatica, Cimicifuga heracleifolia var. bifida, Isopyrum mandshuricum, Paeonia japonica, Syringa patula var. kamibayshii, Lilium distichum, Iris odaesanensis and so forth. The Korean endemic plants were 35 taxa including Salix koriyanagi, Thalictrum actaefolium var. brevistylum, Corydalis maculata, Lespedeza maritima, Cirsium setidens, Carex okamotoi and so forth. The specific plants by floristic region were 155 taxa including 55 taxa of grade I, 41 taxa of grade II, 36 taxa of grade III, 18 taxa of grade IV and 5 taxa of grade V. The naturalized plants were 62 taxa including Rumex obtusifolius, Amaranthus lividus, Medicago sativa, Geranium carolinianum, Malva sylvestris var. mauritiana, Foeniculum vulgare, Sonchus oleraceus, Tradescantia reflexa and so forth. The invasive alien plants were 5 taxa including Rumex acetocella, Solanum carolinense, Ambrosia artemisiifolia, Aster pilosus and Lactuca scariola.

• 한국환경과학회지
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• 제27권11호
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• pp.1105-1115
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• 2018

The aim of this study was to collect crucial data for the improvement of water quality and ecosystem conservation by analyzing water samples, sediments, benthic macroinvertebrates, and fish in the Seosan reservoir. The average values of water quality parameters from 2001 to 2016 were a chemical oxygen demand of 10 mg/L, total nitrogen of 1.22 mg/L, and total phosphorus of 0.074 mg/L. Cadmium was detected in the range of 0.531-0.748 mg/kg in the reservoir sediment. Fish belonging to 6 families and 9 species were identified in the reservoir. The dominant species were Carassius auratus and Micropterus salmoides. Benthic macroinvertebrates belonging to 22 families and 28 species were identified. The ecological score of the benthic macroinvertebrate community was 15 inside the reservoir (St. 2). Micropterus salmoides, an invasive alien species, was determined to be the subdominant fish species based on the number of captures, and the presence of the invasive species, Sicyos angulatus L. and Paspalum distichum L. was confirmed among the land flora.

• 한국자원식물학회지
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• 제33권3호
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• pp.220-225
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• 2020

Bowlesia incana Ruiz & Pav., a new invasive alien plant in Korea, was found in Ulju-gun, Ulsan Metropolitan City. This species is characterized as being similar to the genera Hydrocotyle Tourn. ex L. and Centella L. However, it differs morphologically from these two genera in leaves, flowers, and fruits, as well as stellate pubescence growing on the whole plant. In Korea, Bowlesia incana Ruiz & Pav. is recorded for the first time in this study. A morphological description, distribution map, and illustrations based on the Korean materials collected are presented.

• 한국자원식물학회지
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• 제19권2호
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• pp.237-242
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• 2006

Non-native flora of the Ulleung island, located in the eastern part of South Korea, was surveyed as 54 taxa with 16 families, 35 genera, 53 species and 1 variety. Considering the geographical distribution aspects of the island, the flora of the island showed more closely related with Korean Peninsular than Japan. Poaceace (28%) and Asteraceae (24%) represents more than 50% of the non-native flora in Ulleung island, meaning that they have an advantage of seed dispersal and adaptation to new environments. Ulleung island is comparatively small island of vulnerable to the attack of invasive alien plants but presently, it has the least number of non-native plants than other areas in South Korea. Therefore, we need to take much interest in prevention and mitigation of non-native plant in the future.

• 식물분류학회지
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• 제53권1호
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• pp.60-64
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• 2023

Ipomoea cristulata Hallier f. (Convolvulaceae), native to the desert regions of the central USA to Mexico, was newly found in Gojeong-ri, Deokgwa-myeon, Namwon-si, Jeollabuk-do. This species can be distinguished from I. coccinea by leaves with 3-5 lobes, hirsute distributed adaxially, and corolla entirely red or orange-red. Its Korean name is 'Nabi-ip-yu-hong-cho' based on its butterfly-shaped leaves. We provide a detailed description, photographs, habitat details, and a taxonomic key to related taxa.

• 한국환경생태학회지
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• 제31권1호
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• pp.54-61
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• 2017

습지생태계에 심각한 영향을 미치는 침입외래종 황소개구리(Rana catesbeiana)의 생태적 제어를 목적으로 효과적인 생물종을 선발하기 위하여 6종의 토종 포식성 어류와 6종의 조류를 이용하여 황소개구리의 올챙이와 아성체를 대상으로 포식률을 측정하였다. 본 실험에 사용한 어류 중 동자개(Pseudobagrus fulvidraco), 메기(Silurus asotus), 가물치(Channa argus) 3종은 황소개구리의 올챙이와 아성체를 모두 포식하였고, 그 중 전자를 더 선호하였다. 그러나 끄리(Opsariichthys uncirostris), 드렁허리(Monopterus albus), 뱀장어(Anguilla japonica) 3종은 황소개구리의 올챙이와 아성체를 전혀 섭식하지 않았다. 그리고 고니(Cygnus columbianus), 큰고니(Cygnus cygnus), 쇠오리(Anas crecca), 원앙(Aix galericulata), 홍머리오리(Anas penelope), 가창오리(Anas formosa) 등 실험에 사용한 6종의 조류 또한 황소개구리의 올챙이와 아성체를 전혀 먹지 않았다. 결과적으로, 국내 습지생태계에서 토종 물고기를 이용한 침입외래종 황소개구리의 제어가능성을 확인할 수 있었다.

• The Korean Journal of Ecology
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• 제21권5_3호
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• pp.589-602
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• 1998

Mt. Nam (265m), a city park of Seoul, was originally covered with a typical deciduous broad-leaved forests in Central Korea. However, the park forests have been changed the development for various purpose such as the construction of castle wall, road way, broadcasting station, theater, hotel and apartments, in addition, to thoughtless plantation or alien plant introduction. Human population growth from ca. 100 thousands persons less in that time established Seoul as the capital of choseon dynasty in 1394 to ten millions over persons at present, accelerated the vegetational changes of the park. mt. Nam boundary in those days of sunjong (1908) also was much shrinked as much the range of 300 m distance in the northern most to 700 or 800m distance in some places. The actual vegetation of Mt. Nam largely can be classified by floristic composition into two plant communities of Quercus mongolica community and Pinus densiflora community, four plantations of Pinus rigida, Robinia pseudo-acacia, Populus tomentiglandulosa and other tree species, and on mixed forest with native and alien tree species in secondary succession stage (Yim et al. 1987). The restoration movement of Mt. Nam toward to the natural condition of forest or biodiversity is moving now. However, in the movement there are some problems such as the lack of ecological consideration and the undesirable decision of priority in the practice. A warning should be given, especially, on the undesirable plantation of non-native tree species restricting the forest succession, as in the case of southern slope of Mt. Nam. First of all, the most importance in Mt. Nam management is that the restoration for natural forest and biodiversity should be carried on the basis of integrated ecological principles based on the site evaluation.

• 한국환경생태학회지
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• 제34권6호
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• pp.589-600
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• 2020

효과적인 보호구역의 보전 관리를 위해서는 외래종의 정착 모니터링 및 확산 위험에 대한 저감 노력이 수반되어야 한다. 본 연구는 울진에 위치한 산림유전자원보호구역(2,274ha)에서 조사된 외래식물 분포 정보를 대상으로 활용도가 높은 세가지 종분포모형(Bioclim, GLM, MaxEnt)을 활용하여 외래식물의 잠재출현지역을 모의하였고, 모의 결과를 비교하여 지역적 지리 및 생태 관리 특성이 반영된 현실성 및 적합성 높은 종분포모형을 선발하였다. 분석에서 예측된 외래식물의 출현지역은 실제 분포와 같이 도로 같은 선형 경관 요소를 따라 분포하는 경향이었으며, 일부 벌채지가 포함되었다. 본 연구에서 적용한 각 모형의 예측력과 정확도를 통계적으로 비교한 결과, GLM과 MaxEnt 모형은 대체로 높은 예측력과 정확도를 보였지만, Bioclim 모형은 낮았다. Bioclim은 가장 넓은 면적을 출현예상지역으로 계산하였고, GLM, 그리고 MaxEnt 순으로 면적이 작았다. 모의 결과의 현상학적 검토에서는 GLM과 Bioclim 모형은 표본 수에 따라 예측력이 크게 영향을 받는 것으로 나타났고, 표본 수와 관계없이 가장 일관성 높은 모형은 MaxEnt로 평가되었다. 종합적으로, 본 연구에 사용된 모형 중 외래식물 분포 예측을 위한 최적 모형은 MaxEnt 모형인 것으로 판단되었다. 본 연구에서 제시한 정밀 생물종 분포 자료 기반의 모델 선발 접근 방식은 산림생태계 보호구역의 보전 관리 및 지역 특성이 반영된 현실적이고 정교한 모델 발굴 연구에 도움이 될 것이다.