• Journal of the Korean Association of Geographic Information Studies
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• v.9 no.4
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• pp.176-192
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• 2006

The need for a systematic drought management has increased since last countrywide drought in 2001. Naturally various studies for establishing drought plan and preventing drought disaster have been conducted. MODIS image provided by Terra satellite has effective spatial and temporal resolutions to observe spatial and temporal characteristics of a region. MODIS data products are easy for preprocessing and correcting geometrically and provide various data set in regular which are applicable for drought monitoring. In this study, Ansung river and the upstream of South Han river basin was chosen for case study to identify and assess spring drought. The multi-period MODIS image and accumulated precipitation were used to detect not only the drought year but also the vegetation change of normal year and the result were compared with various spatial data. The result shows NDVI and LSWI with is more appropriate than LST for assesing spring drought in Korea and two month cumulative precipitation has moderate relationship with drought. It is necessary to use MODIS image which has same period and same space for effective drought analysis because drought is also affected by landover and altitude.

• Journal of the Korean Association of Geographic Information Studies
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• v.14 no.1
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• pp.94-106
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• 2011

The muddy water occurrence possibility of reservoir were analyzed by considering GIS based soil erosion model, sediment delivery ratio and effective reservoir capacity. For the purpose, the weakness factors for the establishment of countermeasures of basin were analyzed by evaluating input factors of RUSLE model based on spatial data such as DEM, soil map, landcover map and so on. The potential of soil erosion was estimated considering highland upland. The sediment yields of Chungju-Dam and Soyanggang-Dam showed the highest result in sediment yield using sediment delivery ratio with considering basin area. The sediment concentration of Imha-Dam and Chungju-Dam showed the highest value as 0.791 $kg/m^3/yr$ and 0.526 $kg/m^3/yr$ respectively in sediment concentration with considering effective reservoir capacity. Especially, sediment yield of Imha-Dam was about 2.36 times lower than Soyanggang-Dam, but the sediment concentration was 1.90 times higher preferably, because the effective reservoir capacity of Imha-Dam was about 4.48 times lower. This study calculated sediment concentration using the 10 years mean rainfall event and could consider the aspects of soil, terrain, landcover, cultivation condition and effective reservoir capacity of each basin effectively through the results. Therefore, these quantitative sediment concentration data could be used to estimate the potential of high density turbid water for reservoir and applied with effective tools for the management of reservoir.

• Journal of the Korean Association of Geographic Information Studies
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• v.8 no.2
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• pp.68-80
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• 2005

Parks became a matter of concerned among urban planning facilities that have not been executed for a long time because of the judgement of constitutional disagreement. This study deals with actual condition of constructing neighborhood park at the level of urban planning. In order to enhance the coefficient of citizens' utilization of parks. This study analyzes current situation of neighborhood parks and developing condition in Busan, revealing problems by investigating types of facilities under construction as well as by comparing size and progress of the parks under construction. This study tries different kind of access to the problems with the emphasis on estimation of planning and establishing neighborhood parks on the basis of the coefficient of citizens' utilization. Through the various examinations, this study brings into relief the problems being created in the course of establishment of parks which functions only as green tracts of land at present. As a result, the following conclusions could be made. First, from the viewpoint of location the parks, Busan parks are mostly located in the mountain areas adjacent to urban districts. Secondly, establishment of neighborhood parks is usually for development projects and the facilities introduced in them are monotonous. Thirdly, there is a tendency towards expansion of size and standardization of facility. Forthly, establishment plan of parks lacks profitability. Lastly, there is serious limitation in the size of land for developing neighborhood parks, and what is worse, there is no management of them.

• Korean Journal of Environment and Ecology
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• v.30 no.6
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• pp.1067-1072
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• 2016

In this study, we determined the ecological characteristics of Strix aluco, which is designated as an endangered category II species. Towards this, we identified the actual home range of Strix aluco that breed in Korea, and collected the data necessary for protecting, preserving and managing owl populations. This study was conducted from April 14 to May 20 of 2016 during the breeding season of Strix aluco as part of the 4th National Ecosystem Survey and in accordance with the Natural Environment Conservation Act. We captured and subsequently released a female owl with a total length of 423.5mm and a weight of 550g in Kyungbuk area, succeeded in tracking it for the first time in Korea and secured 6 points of direct observation and satellite tracking observation. The distance from the nest to the farthest point was 93m. As a result of the analysis of habitat points within a100m-radius during breeding period, it was established that their habitat consists of 34.2% of non-irrigated land, 30.6% of mixed forest land, 10.5% of orchard, and 9.4% of natural grassland. These findings are consistent with the previous estimate of home range studies. Further research based on follow-up studies on males or other individuals is required to develop a stronger basis for protection and conservation of endangered wildlife class II owls.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.33 no.4
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• pp.129-139
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• 2015

Parks in order to find the inspiration and implication from their construction. The research is focused on a few cross-sectional city wall parks, which are Huangchenggen city wall park, Ming city wall park and Yuandadu city wall park. to come to the conclusion, it defines the generic concept of city wall park, clarifies the transitional process of the city of Beijing, organize the current situation and basis of the construction of the Beijing city wall parks. besides, by analyzing the Beijing city wall parks' specific construction manners including the basis of their planning, the support by government, planning functionality, landscape theme arrangement and gardening arrangement, the research puts forwards their construction characters and drawbacks. through comprehensive analysis on the aspects above, a series of inspirations are obtained for the construction of city wall parks. these include: specialized and legally valid regulation systems need to be setup before planning; government and citizens' proactive support is necessary for the protection of ancient city wall ruins and the construction of the city wall parks; when planning, existing situation should be utilized to the maximum extent, efficiency of space usage should be improved through smooth connection between different spacial locations.

• Journal of the Economic Geographical Society of Korea
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• v.14 no.3
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• pp.263-285
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• 2011

Despite the process of neoliberalization has made a decisive influence on our society as a whole, there seems little interests in neoliberal urbanization and entrepreneurial urban projects promoting it. This study is to see relationships between neolibealization process and recent urbanization and urban policies in terms of entrepreneurial city mediating them. In particular, this paper tries to reconceptualize entrepreneurial city as corresponding to privatization and commodification, financialization, state redistribution, and management and manipulation of crises which Harvey(2005) suggests as four main features of neoliberalization process in general and 'accumulation by dispossession' in particular, and to characterize it in terms of 'creative destruction' and of 'entrepreneurial governance'. As examined in the later part of this paper, recent cases of these entrepreneurial urban projects in S. Korea include volatility of land and housing price in the Capital region and urban regeneration and newtown projects, project for free economic zones construction in Incheon and other 5 regions, project for SOC construction heavily relying on private investment, in particular project financing pursued nationwidely including Daegu, and project of urban cultural marketing to promote capital inflow tacitly as well as to enhance urban imagine explicitly.

• Journal of Korean Society of Forest Science
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• v.84 no.4
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• pp.525-535
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• 1995

The western-style industrial forest management practice involving large scale clearcutting, silviculture with industrially desirable species, and inadequate consideration on ecosystem preservation, has faced severe criticisms from environmentalists, ecologists and conservationists. With an increasing concern about environmental degradation the general public has also been becoming vocal in demanding ecologically sound alternative forest management. An age-old practice of sustainable ecosystem management variously defined as community forestry, social forestry or homestead forestry, has received increased attention in recent days. This type of traditional, and often not very organized method of natural resource management has been practised in many countries from the prehistoric times. It is believed that with a clear understanding of the functioning of ecosystem and community needs, the existing landuse method can be developed into a more productive one. The nature of community forestry management will vary depending on the scale, geographical location, social/community structure and expectations. This article argues that although the rate of economic growth may be lower with community forestry than with industrial forestry, the former fosters the principle of ecosystem sustainability. Industrial forestry may have an initial high growth rate but often it is associated with unsustainable harvesting leading to ecosystem degradation. A review of the traditional methods of economic analyses shows that they do not take into account the many social and environmental costs associated with forestry. It is argued that a well managed community forestry can maintain the critical balance between economic and ecosystem sustainability. An integrated model of community/homestead forestry development is proposed by coordinating the extension services of the departments of agriculture, forestry and environment.

• Journal of Korean Society of Forest Science
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• v.109 no.2
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• pp.124-135
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• 2020

Alder (Alnus japonica) forests are representative of the wetland in East Asia, including Korea. In the past, alder forests were relatively common in various habitats such as mountains, riversides, back marshes, and alluvial plains. However, this plant community has recently become rare due to increasingly arid habitats and the influence of various land uses. In this study, we identify the synecological characteristics of alder (A. japonica) forests distributed naturally in the mountainous wetlands of Korea and provide basic data for their systematic conservation and management in the future. Based on vegetation survey data collected from 66 alder forests, community types were classified using the methods of the Zürich-Montpellier School of Phytosociology and two-way indicator species analysis. There were eight community types: Styrax obassia, Weigela subsessilis-Fraxinus mandschurica, Spiraea fritschiana, Viola verecunda, Impatiens textori-Spiraea salicifolia, Glyceria leptolepis, Molinia japonica, and Lindera obtusiloba-Quercus acutissima. These community types constituted a vegetation unit hierarchy of two communities, four subcommunities, and eight variants. In addition, the ecological characteristics of each community type were compared (including total coverage per 100 square meter, importance value index, constancy class, life-form composition, diversity indices, community similarity coefficient, and indicator species).

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.130-134
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• 2006

본 연구의 목적은 하천 복원과 관리에 필수적인 하천의 특성 분석 및 물순환 분석시스템 구축에 있다. 연구 대상지역으로 최근 하천의 생태 기능 회복을 위해 도심생태하천조성 사업이 추진되고 있는 대전 3대 하천유역을 선정하였다. 대전 3대 하천 유역의 물수지와 도시화에 따른 영향을 파악하기 위하여 SWAT을 이용한 물순환 분석시스템을 구축하였다. 모형적용 결과, 유출량과 지하수 수위 변화 등 대전 3대 하천 유역의 특성을 관측치에 가깝게 모의할 수 있었다. 모델의 검보정 실시결과에서 나타난 모델의 계산 값들의 관측된 유출량뿐 아니라 기저유출량 및 지하수 수위와의 높은 상관관계는 본 연구에서 구축한 모델의 구조나 변수의 유효성에 많은 신뢰도를 제공한다고 판단된다. SWAT을 이용하여 대전 3대 하천 유역의 물수지 분석 및 도시화에 따른 영향을 평가하였다. 물수지 분석결과에 의하면, 전체적으로 총 유출량 중 지하수 유출량이 47%정도, 중간 유출량이 31% 그리고 지표유출량이 22%이다. 각 소유역의별 유출 성분 분석결과는 각 소유역의 토지 이용도, 토양 그리고 지형적 특징에 따른 유출 특성을 확인하였다. 도시화 영향 분석 결과 전체적으로 1975년에서 2000년까지 갑천 유역의 약 5%가량의 도시화는 총 유출량의 변화에 있어서는 현저한 차이를 보이지 않았으나, 각 유출 성분의 경우에는 많은 영향이 있는 것으로 나타났다. 특히 지표유출량은 45% 가량의 증가를 보였고, 전체 유역의 지하수함양 량이 5%정도 감소한 반면, 도시화가 31%정도 진행된 소유역의 경우에는 17%정도의 현저한 감소를 나타냈다. 본 연구에서 수행한 물수지 분석 및 도시화 영향분석 결과는 향후 대천 3대 하천의 생태하천복원을 위한 물순환 정상화 대책마련 및 하천의 유량확보방안 마련에 기초자료를 제공할 수 있을 것이다.득증대를 꾀함으로 농촌문제 해결에 도움이 될 것으로 기대된다. 본 연구를 통해 GIS 와 RS의 기술이 농촌분야에 더 효율적으로 적용될 것으로 기대되며, 농업기술센터를 통한 정보제공을 함으로써 대농민 서비스 및 농업기관의 위상이 제고 될 것으로 기대된다.여 전자파의 공간적인 가시화를 수행할 수 있었다. 본 전자파 시뮬레이션 기법이 실무에 이용될 경우, 일반인이 전자파의 분포에 대한 전문지식을 습득할 필요 없이, 검색하고자 하는 지역과 송전선, 전철 등 각종 전자파의 발생 공간 객체를 선택하여 실생활과 관련된 전자파 정보에 예측할 수 있어, 대민 환경정보 서비스 질의 개선측면에서 획기적인 계기를 마련할 것으로 사료된다.acid$(C_{18:3})$가 대부분을 차지하였다. 야생 돌복숭아 과육 중의 지방산 조성은 포화지방산이 16.74%, 단불포화지방산 17.51% 및 다불포화지방산이 65.73%의 함유 비율을 보였는데, 이 중 다불포화지방산인 n-6계 linoleic acid$(C_{18:2})$와 n-3계 linolenic acid$(C_{18:3})$가 지질 구성 총 지방산의 대부분을 차지하는 함유 비율을 나타내었다.했다. 하강하는 약 4일간의 기상변화가 자발성 기흉 발생에 영향을 미친다고 추론할 수 있었다. 향후 본 연구에서 추론된 기상변화와 기흉 발생과의 인과관계를 확인하고 좀 더 구체화하기 위한 연구가 필요할 것이다.게 이루어질 수 있을 것으로 기대된다.는 초과수익률이 상승하지만, 이후로는 감소하므로, 반전거래전략을 활용하는 경우 주식투자기간은 24개월이하의 중단기가 적합함을 발견하였다. 이상의 행태적 측면과 투자성과측면의 실증결과를 통하여 한국주식시장에 있어서 시장수익률을 평균적으로 초과할 수 있는 거래전략은 존재하므로 이러한 전

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.194-199
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• 2006

쌍천유역의 강수량과 지하수위의 관계를 분석한 결과 융설효과를 확인하였고 갈수기에 지하수위가 현저히 저하됨을 확인하였다. 쌍천유역의 지하수위와 GOI의 상관관계를 분석한 결과 70일 이동평균값을 이용한 GOI가 가장 높은 상관관계를 보여주었다. 융설효과를 고려하기 위해서 먼저 유역의 DEM 자료를 이용하여 100m 간격으로 고도별 면적분포를 구하고 기온이 100m당 $0.5^{\circ}C$씩 감소하는 것을 고려하여 강수사상이 발생하면 $0^{\circ}C$ 이하가 되는 고도에서는 강설사상이 발생하는 것으로 가정하였다. 이 때 고도별 면적분포에서 구해지는 면적비를 고려하여 강수사상을 강우와 강설로 나누었다. 이후에 고도를 고려한 기온이 $0^{\circ}C$ 이상인 날에 그 고도의 설적이 모두 녹는 것으로 가정하였고 강우가 발생한 것으로 처리하였다. 유역평균 일최대침투량을 알아내기 위하여 강수량자료를 일정값 이상은 고정하여 수정된 강수량자료로 70일 이동평균값을 구하고 이 값들과 지하수위와의 상관관계를 분석해 본 결과 40mm가 일최대침투량으로 가정하였을 때 가장 높은 상관관계를 보여주었다. 쌍천유역의 경우 40mm가 한계침투량이다. 이렇게 수정된 강수자료를 이용하여 이동평균을 구하여 지하수위와의 상관관계를 구해본 결과 쌍천유역의 2003년부터 2005년까지 2개년 자료에 대해서 융설을 고려했을 때 상관관계가 더 높아짐을 알 수 있고 한계침투량을 고려했을 때도 상관관계가 더 높아짐을 알 수 있으며 융설효과와 한계침투량을 동시에 고려했을 경우에 가장 높은 상관관계를 얻을 수 있었다.$2.8g/cm^3$로 가정했을 때, 경상분지의 화강암류의 압력평균값이 약 $0.73{\sim}3.16kbar$의 범위를 가졌고, 경상분지내 백악기 화강암류의 정치 깊이는 $2.6{\sim}11.4km$범위를 가졌다. 이는 경상분지 화강암류에 대해 유추된 기존의 정성적인 생각과 일치한다는 것을 알 수 있었고, 각섬석의 $Al^T$함량을 이용한 여러 경험적, 실험적인 압력계가 많은 제한점이 있지만 경상분지의 백악기 불국사화강암류에는 정성적으로 유효함을 알 수 있었다. 우리는 최종적으로 경상분지내 백악기 화강암류는 천부관입 암체이고 노출된 화강암류가 천부지각이라는 것을 알 수 있었다. 것이 아니라 낙관적 예측을 수행하는 경향이 있음을 발견할 수 있었다.원밭, 화산회밭으로 6개 유형으로 분류할 경우 각각의 분포면적은 41.9%, 23.3%, 17.5%, 13.9%, 1.1. 2.2% 이었다. 도시화 및 도로확대 등 다양한 토지이용 및 지형개변으로 과거의 토양정보가 많이 변경되었다. 그래서, 앞으로는 인공위성자료 및 항공사진을 이용하여 빠르고 쉽게 활용할 수 있는 토양조사 방법개발과 기 구축된 토양도의 수정, 보완 작업이 필요한 절실히 요구되고 있는 현실이다.브로 출시에 따른 마케팅 및 고객관리와 관련된 시사점을 논의한다.는 교합면에서 2, 3, 4군이 1군에 비해 변연적합도가 높았으며 (p < 0.05), 인접면과 치은면에서는 군간 유의차를 보이지 않았다 이번 연구를 통하여 복합레진을 간헐적 광중합시킴으로써 변연적합도가 향상될 수 있음을 알 수 있었다.시장에 비해 주가가 비교적 안정적인