• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.05a
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• pp.435-436
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• 2002

• Proceedings of the Plant Resources Society of Korea Conference
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• 1996.09a
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• pp.53-53
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• 1996

• Korean Journal of Fisheries and Aquatic Sciences
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• v.28 no.3
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• pp.316-324
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• 1995

Ecology and life History of the mudskipper, Boieophthaimus pectinirostris were investigated based on the specimens collected from the Korean roasts from 1978 to 1994. The spawning of this species takes place during the period from June to August. Prolarva hatched from egg was 3.3mm in total length, and began to bottom life in TL 16.0mm of 40 days after hatching. The stomach contents were principally diatoms. In the foraging behavior, this species were conducted at the wet soft mud on the upper tidal zones. The burrowing observed in the intertidal mud flat was YL type. B. pectinirostris is restricted to western and southwestern coast of Korea, but their habitats and individuals are being reduced by the result of reclimation to tide land.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.04a
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• pp.65-65
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• 2019

비무장지대(DMZ)는 군사적 활동 외에 일반인에 의한 접근이 엄격히 통제되어 자연적으로 생물들이 보호되어 왔으며, 한반도의 거대한 동 서 생태축으로서 그 중요성이 매우 높다. 본 연구는 경기도 연천군지역의 비무장지대 및 민통선지역에 분포하는 자원식물의 현황을 파악하고 희귀식물, 한국특산식물 등 주요 유용자원식물의 보전과 관리에 기초자료를 제공하고자 실시하였다. 연구대상지에 분포하는 자원식물은 74과 168속 192종 4아종 26변종 5품종으로 총 227분류군으로 우리나라에 분포하는 관속식물 4,881(국립수목원, 2007)분류군의 4.66%로 나타났다. 각 과별 구성종의 출현비율을 살펴보면 국화과 36분류군으로 가장 다양하게 출현하였다. 연구대상지내에 분포하는 희귀식물은 쥐방울덩굴(Aristolochia contorta Bunge)로 1분류군이 확인되었으며, 한국특산식물은 키버들(Salix koriyanagi Kimura), 병꽃나무(Weigela subsessilis (Nakai) L.H.Bailey), 은사시나무(Populus tomentiglandulosa T. B. Lee)로 3분류군, 귀화식물은 단풍잎돼지풀(Ambrosia trifida L.), 족제비싸리(Amorpha fruticosa L.), 아까시나무(Robinia pseudoacacia L.) 등 등 17분류군으로 나타났다. 연구결과 전체적으로 다양한 식물종이 확인되지는 않았으며, 일부 구간에는 가시박(Sicyos angulatus L.), 돼지풀(Ambrosia artemisiifolia L.), 단풍잎돼지풀(Ambrosia trifida L.) 등 생태계교란 야생식물이 폭넓게 분포하고 있는 것을 확인할 수 있었다.

• Korean Journal of Environment and Ecology
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• v.13 no.3
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• pp.244-253
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• 1999

백운산의 산림군락과 환경 요인과의 관계를 구명하기 위하여 TWINSPAN과 CCA Ordination을 이용분석한 결과는 다음과 같다. TWINSPAN에 의해서 서어나무 군락, 고로쇠나무 군락, 신갈나무 군락 및 굴참나무 군락의 4 group으로 구분되었다. 주요 군락과 환경 용인과의 상관을 보면 서어나무 군락과 굴참나무 군락은 해발고가 중간이고 유기물 함량과 유효인산의 양료가 중간인 곳에 주로 분포하고 신갈나무 군락은 해발고가 높고 유기물 함량과 유효인산의 양료가 많은 곳에 주로 분포하며 고로쇠나무 군락은 해발고가 낮고 $K+$,$Ca{++}$,및 $Mg^{++}$등의 양료가 많은 곳에 주로 분포하고 있다 주요 수종과 환경과의 상관관계를 보면 해발고가 높고 유기물 함량과 $P_2O_5$ 많은 곳에 신갈나무, 노리재나무, 물푸레나무, 해발고가 중간기고 양료가 중간인 곳에 서어나무, 비목, 단당풍 졸참나무, 쪽동백나무, 때죽나무, 해발고가 낮고, 습하며$K+$,$Ca{++}$,및 $Mg^{++}$ 등의 양료가 많은 계곡부타 까치박달나무 층층나무, 느티나무, 고로쇠나무, 들메나무, 나도밤나무 및 산뽕나무가 분포하고 있다.

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2019.08a
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• pp.232-233
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• 2019

• Journal of Environmental Impact Assessment
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• v.29 no.2
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• pp.112-121
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• 2020

Organic pollution due to coastal development increases the distribution of organic pollution indicators (OPI) and disturbs benthic ecosystems by increasing the number of organic pollution indicators dominant in the target area. However, there is a little researches on the organic pollution levels of benthic ecosystems in subtidal target coast of all over Korea. Therefore, this study analyzed the distribution of macrobenthos in subtidal around the coast development sites of EIA, confirmed the distribution of OPI, and produced the benthic health index-map (organic pollution level) of all coasts of Korea. The benthic health index of the sites was calculated using the density of each OPI, and the image program was used for the benthic health index-map. Organic pollution levels varied by projects for EIA and OPI. Lumbrineris sp. was found to be dominant throughout the coast and correlated with the benthic health index in Korea. Through this study, we will be able to confirm the future organic pollution level in the subtidal ecosystems of the project for EIA through the results of research to macrobenthos in subtidal for EIA. In addition, the distribution of Lumbrineris sp. OPI can be used as an indicator to indirectly evaluate the organic pollution level of the development site.

• Journal of Korea Water Resources Association
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• v.46 no.11
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• pp.1053-1067
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• 2013

Distributed ecohydrological model which can simulate hydrological components, vegetation and landsurface temperature using practically available input and observed data with minimum parameters is introduced. This model is designed to properly simulate in area with lack of observed data. Parameter estimation and calibration of the model can be carried out with indirectly estimated data (monthly surface runoff by NRCS-CN method and annual actual vaporization by empirical equation) and remote sensing data (NDVI, LST) instead of observed data. We applied this model in the Naeseong creek basin to evaluate the model validity. Firstly, we found the sensitive parameters which largely influence the simulation results by sensitivity analysis, and then hydrological components, vegetation, land-surface temperature, routed streamflow and water temperature were simulated over 10 years (2001 to 2010) using calibrated parameters. Parameters are estimated by optimization method. It is shown that most of grids are well simulated. In the case of streamflow and water temperature, we checked two observed points in the outlet of watershed and it is shown that streamflow and water temperature are properly simulated as well. Hence, it can be shown that this model properly simulate the hydrological components, vegetation, land-surface temperature, routed streamflow and water temperature as well, even though in despite of using limited input data and minimum parameters.

• Journal of the Korean Society of Marine Environment & Safety
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• v.15 no.2
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• pp.91-98
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• 2009

The long-term water-quality change of Asan Bay by the influx of polluted disposal water was predicted through a simulation with an Eco-hydrodynamic model. Eco-hydrodynamic model is composed of a multi-level hydrodynamic model to simulate the water flow and an ecosystem model to simulate water quality. The water quality simulation revealed that the COD(Chemical Oxygen Demand), dissolved inorganic nitrogen(DIN) and dissolved inorganic phosphorus(DIP) are increased at 5 stations for the subsequent 6 months after the influx of the effluent. COD, DIN and DIP showed gradual decreases in concentration during the period of one to two years after the increase of last 6 months and reached steady state for next three to ten years. Concentration levels of COD, DIN, and DIP showed the increase by the ranges of $11{\sim}67%$, $10{\sim}67%$, and $0.5{\sim}7%$, respectively, which represents that the COD and DIN are the most prevalent pollutants among substances in the effluent through the sewage treatment plant. The current water quality of Asan Bay based on the observed COD, TN and TP concentrations ranks into the class II of the Korean standards for marine water quality but the water quality would deteriorate into class III in case that the disposal water by the sewage plant is discharged into the Bay.

• Journal of the Korean Geographical Society
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• v.47 no.5
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• pp.654-676
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• 2012

This study aims to develop an ecoregion classification using a multi-hierarchy of environmental factors for spatial patterns in the capacities and potentials of ecological systems in mountain regions. To achieve the objectives, we describe the spatial distribution of environmental factors and identify the multi-hierarchy of these factors using spatial statistics. Lastly, we assess ecosystem-units using both a forest type map (yung & kung) and a forest soil map in order to present a ecoregion classification. This study was performed at a $1,168km^2$ area in Gangwon-do, Korea. Sedimentary rocks, particularly limestone (36.6%) exist in high proportions in the research area. While higher mountains are present in the north and central Korean peninsula, plain areas show large proportions along Odae and Pyeongchang river. In a multi-hierarchy, geology and elevation are identified as upper levels and landform classification (surface curvature, upslope area) is considered as a lower level. 'Geology+elevation+landform' shows equally higher ${\chi}^2$ values than that of other classifications and we map ecoregions based on this result. Uniqueness of environmental characteristics in the research area such as high proportions of sedimentary rocks and higher elevations influences our ecoregion classification. We are looking forward to considering this study as an effective approach to integrating various ecological themes for mountain ecosystem management.