• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.461-461
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• 2023

하구담수호는 하구에 방조제를 축조하여 인공적으로 조성된 저수지로 배수갑문을 통해 적정수위를 유지하고 담수된 물은 농업용수, 공업 및 생활용수로 활용되고 있다. 최근 담수호 수질을 살펴보면 호소수 수질환경기준 IV등급을 상회하여 농업용수로 부적합한 것으로 나타났다. 하구담수호 수질은 간척농지와 담수호 유역내 농경지, 축사 등에서 배출되는 영양염류, 유사 등에 의해 오염되며, 이들은 경지의 경사, 토양, 강우 특성 등과 같이 다양한 인자들에 의하여 영향을 받는다. 도시화와 기후변화 등으로 인해 변화하는 환경에서 지속가능한 수자원 관리를 위해 하구담수호 물환경의 변화를 분석할 필요가 있다. 따라서 본 연구에서는 간월호 유역을 대상으로 유역-호소 연계 모형을 이용하여 미래 기상, 토지이용, 용수수요량 등의 변화에 따른 담수호 물환경을 분석하였다. SSP(Shared Socioeconomic Pathways) 기후변화 시나리오를 활용하여 미래 기상을 적용하였으며 Markov Chain기법 및 FLUS (Future Land-Use Simulation model)모형을 통해 미래 토지이용을 구축하였다. 미래 환경 변화를 적용하여 HSPF-EFDC-WASP 모형을 구동하여 담수호의 수문, 수질 분석을 수행하였다. 이 연구의 결과는 미래의 환경 변화에 대응하기 위해 하구담수호를 관리하기 위한 효과적인 전략을 개발하는 데 활용될 것으로 사료된다.

• The Journal of the Korea Contents Association
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• v.13 no.3
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• pp.152-161
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• 2013

This study attempted to test the causal effect of structural characteristics of metropolitan neighborhoods on crime, based on the ecological model of crime explanation. To this end, a Negative Binomial Regression analysis was performed for Seoul's 424 Dong Districts. Results showed that the incidence of homicide increases as much as the scales of economic disadvantage, family disruption, and commercial land use go worse. It suggested that family integrity is one of the most strong and consistent factors that could deter crime in neighborhood's contexts. Economic disadvantage and commercial land use were also critical targets as crime-generating factors. Reasoning with the results of past studies implied that neighborhood-specific approaches need to be developed for effective crime prevention. Although a few limitations could raise a caveat against such interpretation of the results, the value of this research would not be simply denied as the first attempt to utilize all Dong districts of Seoul. It is expected that this study contributes to activating Dong level research and developing effective crime control policy.

• Journal of Wetlands Research
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• v.20 no.1
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• pp.20-26
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• 2018

The purpose of this study is to construct a GIS / DB by grasping a small but ecologically valuable village wetland distribution, and to propose conservation management and wise use plan. The study area is Seocheon-gun, a typical farming village. Firstly, based on the digital topographical map (1:5,000), the Arc-GIS tool was used to identify the provisional(draft) village wetlands. In addition, for the management of village wetlands, wetlands with an area of more or less than $625m^2$ each were derived and according to ecological regions study area was classified into urban areas, inland areas and coastal areas. And finally, according to the wetland identifying indicators, the village wetlands were identified as the final village wetlands through indoor and field trips. The results of the study show that there are 570 village wetlands in Seocheon - gun province, which are 74 in urban areas, 220 in inland areas, and 276 in coastal areas. The case study for village wetland identification was conducted in one out of two urban areas (Seocheon - eup), two of four coastal areas (Biin - myeon and Seo - myeon), and three of seven inland areas (Masan - myeon, Hansan - myeon, and Sicho - myeon). The distribution of village wetlands was found mainly to be a village wetland with an area of less than $625m^2$. In addition, compared with inland areas, the discrimination rate of village wetlands in coastal areas and urban areas was relatively low, indicating that inland areas were still less disturbed, and land use in urban areas and coastal areas is changing rapidly. Especially, land with less awareness such as village wetlands is relatively easily damaged, and management strategy is urgent.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.187-187
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• 2012

최근 환경에 대한 관심이 증대하면서 생물다양성, 홍수조절, 온실가스 저감 등 다양한 기능을 수행하는 습지에 대한 보전 및 복원을 위한 많은 노력들이 진행되고 있다. 습지 보전 및 복원을 위한 다양한 방안 중 하나가 댐 및 주변지역을 습지로 조성하여 활용하는 방안이라고 할 수 있으며, 이를 위해서는 댐 및 주변지역의 습지로서의 활용을 위한 특성 파악이 우선적으로 이루어져야 한다. 따라서 본 연구에서는 댐 주변지역에 조성된 습지와 댐 저수지 자체를 모두 포함하여 댐습지라고 정의하고, 댐습지가 지니고 있는 습지의 기능 및 경제적 가치를 추정하고자 하였다. 본 연구의 대상지역은 기준습지와 대상습지로 구분되며, 기준습지는 우포늪과 보령댐, 대상습지는 용담댐이다. 댐습지의 기능평가는 수문지형학적 특성을 고려하는 HGM(Hydrogeomorphic Method)을 이용하였으며, 가치평가는 조건부가치측정법(CVM)을 이용하였다. 기능평가 결과는 우포늪과 보령댐을 각각 기준지역으로 선정하였을 경우로 구분하여 나타낼 수 있다. 자연습지인 우포늪을 기준지역으로 선정하였을 경우에는 댐의 주목적과 관련이 있는 수문학적 기능이 높게 평가되었으나 습지 내에서 진행되는 생지화학적 기능과 다양한 식물 종에 대한 서식처로써의 기능은 다소 미흡한 것으로 평가되었다. 보령댐을 기준지역을 선정하였을 경우에는 일부 기능을 제외하고 대부분의 기능이 유사한 것으로 평가되었다. 조건부가치측정법을 이용한 용담댐의 경제적 가치평가는 댐습지 생태공원조성에 따른 훼손된 습지의 보호, 희귀생물종의 보호, 휴양 및 여가기능 제공을 주요인으로 설정하고 설문조사를 수행하여 가치를 추정하였다. 그 결과 용담댐의 총 가치는 우포늪의 가치와 비교하였을 때 우포늪의 35~41%에 해당하는 것으로 추정되었다. 본 연구에서 수행된 댐습지의 기능 및 가치평가 결과는 댐이 단순히 이 치수 측면으로만 이용되는 것이 아니라 생태학적으로도 활용성이 있다는 사실을 나타내고 있다. 이를 통해서 향후 댐의 친환경적 활용 방안 및 댐습지 관리 방안에 중요한 기초자료로 활용될 수 있을 것으로 판단되며, 댐에 대한 긍정적인 인식 증진에도 많은 도움이 될 것으로 판단된다.

• Journal of the Korean association of regional geographers
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• v.10 no.2
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• pp.341-355
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• 2004

This thesis is to analyze characteristic of sustainable development in the Nak-dong River. The results are summarized in the followings. 1) The principles which did not consider the equilibrium between development and environment, ecosystem, security. precautionary measure, equity could devise a plan, changes of economic land area, sand & gravel extractions from the riverbed, the river contamination cleanup, dam build 2) The rules which disregard polluter pay and opening participation in public affairs could input of too much province budget and manpower, project team. The measures to solve these problems could be proposed expansion of environmental infrastructure, sustainable sand & gravel extractions from the riverbed, fortifying the assistance of the residents who live in Dam construction site and the peripheral area of Dam, lower local fund rates in national projects, and the creation of management organization.

• Korean Journal of Environment and Ecology
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• v.15 no.2
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• pp.186-192
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• 2001

본 연구는 전라남도 광양만의 6개 임해매립지 식재지반의 토양환경 특성을 조사분석하였다. 토심이 깊어짐에 따른 토양성질의 수직적 특성은 각 식재지반별로 다르게 나타났다. 토양성질의 수직적 특성에 영향을 미치는 요인은 개토와 준설토의 이질서, 토양의 물리. 화학성의 교란, 지반하부에 잔존하는 염류의 이동, 유기물의 이동과 강우나 가뭄 등이었다. 수목생 상 유리한 식재지반은 식재지반의 높이가 낮은 곳보다 높은 성토지역이었으며, 이것은 토양의 물리. 화학적 교란과 지하부의 염류로부터 안전성이 높기때문이었다. 조경식물의 생육상 불리한 토양성질들은 토성의 이질서, 토양의 경화, 알칼리성 염류토양, 높은 ECe, Na, K. 저농도의 Ca, Mg, T-C등이었으며, 이러한 토양성질들은 표토보다는 지하의 근권부에 주로 분포하여 있었다. 따라서 임해매립지 식재지반 조성시에는 토양의 성질이 교란되지 않은 방법이 모색되어야 하며, 조경수목의 생육에 관련된 토양환경조사는 지하근권부 이하까지 정밀하게 조사. 분석하여야 할 것으로 사료되었다. 사료되었다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.45-46
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• 2003

배경대기(Background Atmosphere)란 배출원의 강도에 따라 다를 수 있으나 일반적으로 도시 또는 대규모의 발전소로부터의 영향이 적은 지역의 대기로써 인위적 오염원이 거의 없는 지역을 의미한다(WMO, 1978). 세계 기상기구(World Meteorological Organization: WMO)에서는 지구 대기가 인위 적인 오염원으로 인하여 생태계의 변화가 예상되고 인류의 생존이 위협받게 됨에 따라 이에 대한 대책으로 1969년에 배경대기오염관측망(Background Air Pollution Monitoring Network: BAPMoN)을 구축하여 장기적인 지구의 대기 환경 변화를 예측하기 위한 사업을 시작하였다. (중략)

• Journal of Wetlands Research
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• v.12 no.3
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• pp.107-127
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• 2010

This research is about the monitoring of people's consciousness on ecosystem change after coastal restoration project in Gangjin Bay. Tidal flat ecosystem of Ganjin Bay was major producing district of short-necked clam in Jeonnam Province. Owing to coastal restoration project (sand gathering and dredging) during 5 years, however, ecosystem was disturbed and harvesting of fish was decreased. Although a few of ark shell and oyster are harvested but drastically decreased. Even aging and depopulation is general situation like other rural regions, life pattern of villages and depopulation in Gangjin Bay was influenced by drastic decreasing of income. As the results of social monitoring, drastic decreasing of fish and shell in Gangjin Bay is significantly concerned with coastal restoration project (sand gathering and dredging) and also with difficulty of fresh-water inflow to coastal bay because of Jangheung Dam. In order to get the detail information on the cause and consequence of ecosystem change in tidal flat, it is necessary to apply the long-term socio-economic monitoring as well as biological and ecosystem monitoring.

• Spatial Information Research
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• v.8 no.1
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• pp.51-67
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• 2000

This was preliminary research to develop the mapping method for the Urban Ecological Map. This research provided preliminary evaluation model for ecological conservation. The model was applied to Mt. Kwanak in Seoul, and the Urban Ecological Map was produced and tested. The results are as follows. First, some problems were found in the legal Ecological Map ; insufficient and only qualitative criteria for evaluation of the conservation value in an urban area, and exclusion of the areas designated by other was laws. Secondly, in order to improve the evaluation criteria for Ecological Map, some missed sites should be added to the legal list of valuable sites. Those are needed for ecological restoration, conservation of wildlife habitats managed by a city government , and establishment of eco-corridor. Third, the efficient mapping process for Urban Ecological Map must have two steps. On the first step an ecological evaluation should be done based on pure conservation value. On the second one the Ecological Map for legal action control should be made. And the Analytic Hierachy Process is considered as a Helpful technique for improving the objectivity of evaluation model. Fourth, the legal action control system for Urban Ecological Map should be reviewed.

• Korean Journal of Ecology and Environment
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• v.50 no.3
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• pp.286-294
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• 2017

Development of transportation is rapidly reducing the barriers between countries, but this is causing the easier migration of species than the past. Typically, exotic species are imported for the purpose of food, leather, and pets. However, it has been introduced into the wild through artificially or naturally paths, and recently they are become a main cause of ecosystem disturbance. In this study, we investigated exotic turtle species introduced into the wild and analyzed their distribution characteristics. As a result of filed surveys, totally 4 genus 8 species 62 individuals of exotic turtles were found from 126 reservoirs in Gangwon-do and Gyeongsangnam-do, South Korea. In particular, Trachemys scripta elegans showed relatively high frequency than other turtle species and the natural reproduction of T. s. elegans was confirmed in some areas. On the other hand, the frequency of discovery of exotic turtles except T. s. elegans was relatively low, and the range of the areas was limited. Especially, exotic turtles except T. s. elegans were mainly found in public places such as reservoirs in the park. As a result of analyzing the distribution characteristics of exotic turtles using geographic information system, the turtles' distribution showed a high correlation with the artificial factor such as "urban". In this study, we identified the distribution characteristics of exotic turtles in the Korean wild, and these results will be important data for understanding status the and establishing effective management methods for exotic species.