• Title/Summary/Keyword: 수변

Search Result 783, Processing Time 0.023 seconds

The Analysis of Soil Erosion in Water-pollutant Buffering Zone of Imha reservoir using Geo-Spatial Data (지형공간정보를 이용한 임하호 수변구역 토사유실 분석)

  • Lee, Geun-Sang;Hwang, Eui-Ho;Park, Jin-Hyeog;Chae, Hyo-Sok
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2006.05a
    • /
    • pp.908-912
    • /
    • 2006
  • Geology and terrain of Imha basin has a very weak characteristics to soil erosion, so much soil particles flow into Imha reservoir and bring about high density turbid water when it rains a lot. Especially, since the agricultural area of Imha basin is mainly located in river boundary, Imha reservoir has suffered from turbid water by soil erosion. Therefore, it is important to estimate the influence of soil erosion to establish efficient management of water-pollutant buffering zone for the reduction of turbid water. By applying GIS-based RUSLE model, this study can acquire 12.23% that is the ratio of soil erosion in water-pollutant buffering zone and is higher than area-ratio (9.95%) of water-pollutant buffering zone. This is why the area-ratio of agricultural district (27.24%) in water-pollutant buffering zone is higher than the area-ratio of agricultural district (14.96%) in Imha basin. Also as the result of soil erosion in sub-basin, Daegok basin shows highest soil erosion in water-pollutant buffering zone, second is Banbyeon_10 basin and last is Seosi basin.

  • PDF

A Study on the Users' Awareness of Waterfront in Japan - Focusing on Yokohama Minatomirai21 area - (일본 워터프런트 공간에 있어서 수변공간의식에 대한 연구 ~요코하마 미나토미라이21지구를 대상으로~)

  • Kon, Masayuki;Lee, Myung-Kwon;Yang, Dong-Cheon
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
    • /
    • 2012.06a
    • /
    • pp.7-8
    • /
    • 2012
  • Using a questionnaire, this study examined the users' consciousness through the human five senses on the waterside space in the district of Minato Mirai 21, Yokohama located in the east of Kanagawa prefecture, which is well known for its waterfront in Japan. Among the users, the results of the questionnaire showed 52.2% of male, and 29.6% accounted for people in their twenties as the dominant groups. Out of the nineteen questions regarding the consciousness on the waterside space, 'feel the sea breeze' accounted for 237(78.7%) while 'the sea is visible' accounted for 217(72.1%). Then, the contents of the nineteen questions were re-classified into such seven items as the human five senses(sight, hearing, touch, taste, and smell), activities, and the existence of facilities, discovering the consciousness of the users. The results demonstrated that touch(22.9%) and sight(20.8%) respectively were the most influential items.

  • PDF

Study on the Evaluation Criteria of Environment Assessment for the Various Type of Small-Scale Development Projects in the Riparian Areas (수변지역 소규모 개발사업의 유형별 환경평가 기준에 관한 연구)

  • Joo, Yong-Joon;Sagong, Hee
    • Journal of Wetlands Research
    • /
    • v.18 no.3
    • /
    • pp.218-225
    • /
    • 2016
  • Various strategies and management plans have been established in order to conserve water quality as well as ecosystem, prevent deterioration of scenic area, and more importantly, retain drinking water securely. However, due to the introduction of numerous small-scale development projects on the waterside area outside protection area of source water and reparian area, river water quality and landscape are severely deteriorated. In this study, We analyzed the expected environmental impacts on the ecosystem, topograph, geology, landscape, water quality according to development type, and assigned different environmental points to each development type depend on environmental impacts, which is able to divide small-scale development project into three categories such as projects with rigorous review, projects with general review and projects with simple review. Finally, we suggested the appraisal basement is to avoid or minimize the expected environment impacts of the small-scale development projects in riparian areas so that make them sustainable development by reasonable restriction.

A Case Study on Waterfront Revitalization Project for the Downtown Regeneration in Harbor City (항만도시 도심재생을 위한 수변공간재활성화사업 사례연구)

  • Choi, Kang-Rim
    • Journal of the Korea Convergence Society
    • /
    • v.10 no.11
    • /
    • pp.309-320
    • /
    • 2019
  • Waterfront revitalization is an important issue for the downtown regeneration of harbor cities. The purpose of this study was to derive implications for waterfront revitalization project to regenerate the downtown of harbor city. Theoretical considerations and case studies were conducted on Darling Harbour in Sydney and Rose Kennedy Greenway in Boston. The results of the case analysis are as follows. (1) The land use, buildings and facilities for leisure and amusement that provide public access and various experiences were constructed and historical heritage was actively utilized. (2) The open spaces in various sizes and characteristics including waterfront walkways, parks, plazas and green spaces were created. (3) The connection between downtown and waterfront was improved in terms of pedestrian space and townscape in order to create synergistic effect between downtown and waterfront.

The Influence Analysis of GIS-based Soil Erosion in Water-pollutant Buffering Zone (GIS기반 수변구역의 토사유실 영향 분석)

  • Lee, Geun Sang;Hwang, Eui Ho
    • KSCE Journal of Civil and Environmental Engineering Research
    • /
    • v.26 no.2D
    • /
    • pp.335-340
    • /
    • 2006
  • Geology and terrain of Imha basin has a very weak characteristics to soil erosion, so much soil particles flow into Imha reservoir and bring about high density turbid water when it rains a lot. Especially, since the agricultural area of Imha basin is mainly located in river boundary, Imha reservoir has suffered from turbid water by soil erosion. Therefore, it is important to estimate the influence of soil erosion to establish efficient management of water-pollutant buffering zone for the reduction of turbid water. By applying GIS-based RUSLE model, this study can acquire 12.23% that is the ratio of soil erosion in water-pollutant buffering zone and is higher than area-ratio (9.95%) of water-pollutant buffering zone. This is why the area-ratio of agricultural district (27.24%) in water-pollutant buffering zone is higher than the area-ratio of agricultural district (14.96%) in Imha basin. Also as the result of soil erosion in sub-basin, Daegok basin shows highest soil erosion in water-pollutant buffering zone, second is Banbyeon_10 basin and last is Seosi basin.

An Analysis of Land Use Patterns in Riparian Zones for the Geumho River Watershed Management (금호강 유역관리를 위한 수변구역의 토지이용패턴분석)

  • Park, Kyung-Hun;Oh, Jeong-Hak;Jung, Sung-Gwan
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.8 no.2
    • /
    • pp.157-165
    • /
    • 2005
  • The purpose of this study is to examine the relationship between land use patterns of riparian zones and water quality in the Geumho River watershed. A GIS database included digital land use maps (1:25,000), stream network extracted from digital topographic maps (1:5,000) and riparian zones maps by multi-buffering method. Pearson's correlation analysis was used to explain the relationship between the environmental conditions of a 30 meter buffer strip on each side and water quality. According to the result of investigation of riparian-level land use patterns, sub-watersheds on the lower Geumho River including Daegu metropolitan city were mainly developed as urban area such as residential, commercial and industrial ones, while sub-watersheds on the middle Geumho River and the main course of Nakdong River, agricultural ones such as a paddy, a dry field and an orchard. Meanwhile, the area-rate of riparian forests which play an important role in filtering nitrogen, phosphorus and sediment was estimated below the average 16%. The proportion of urban area in a 30 meter riparian bufferstrip had a negative correlation with water quality in each sub-watershed. But the proportion of forest area had a positive correlation with water quality. Henceforth, it is necessary to establish landscape planning for preparing and restoring the riparian buffer zones, concerning land form, soil type, the present land use pattern and economic aspects.

  • PDF

Research on Landscape Plan Strategy of Urban Waterside Space Buffer Zone - Focused on the Case of the Resilient Perspective of Plan - (도시 수변 완충지역의 경관 계획에 관한 연구 - 탄성 (resilient) 관점의 계획 사례분석을 중심으로 -)

  • Yang, Meng;Hong, Kwan-Seon
    • The Journal of the Korea Contents Association
    • /
    • v.20 no.7
    • /
    • pp.404-416
    • /
    • 2020
  • Flooding is an unavoidable natural disaster for the city. Flood disasters seriously undermine the city's economy, safety, and sustained development. In the course of development and construction of waterfront space in the same city, the construction of basic disaster prevention facilities cannot be avoided completely even if huge amounts of capital are invested to reduce the economic damage of flooding. The cost of rebuilding the city after the disaster is much higher than the cost of building disaster prevention facilities. In recent years, the theory of elasticity in urban reconstruction and so on has been a subject of city problem solving, creating widespread discussion and attention in academia. In other words, how to transform the concept of elasticity into practice based on theoretical and empirical factors is a real problem facing urban disaster. Through theoretical literature on the waterfront (space) buffer zone of a city (flood-weak area) and the case study of the city's practice, this paper tries to clarify the element of 5R, the theory of elastomeric fire prevention, and present detailed measures accordingly. In addition, the following two problems are addressed while emphasizing the feasibility of implementing the urban waterfront (space) plan of the elastomeric element around the urban water buffer zone. First, the means of disaster prevention planning are used to mitigate conflicts between individual utility of urban waterfront and disaster prevention functions in waterfront buffer zones, and second, the waterfront buffer zone can respond to flood-causing problems in terms of disaster prevention as much as possible through the elastic disaster prevention plan.

A Study on the Characteristics of Spatial Structure of Jiangnan Watertown(水鄕鎭) in China - Focusing on Wuzhen and Nanxun in Zhejiang Province - (중국 강남 수향진의 수변공간 특성 연구 - 절강성 오진과 남심을 사례로 -)

  • Choi, Jung-Kwon;Choi, Jung-Mean
    • Journal of the Korean Institute of Traditional Landscape Architecture
    • /
    • v.34 no.4
    • /
    • pp.98-109
    • /
    • 2016
  • The purpose of this study is to identify characteristics of spatial structure of Jiangnan water town in China which has been developed along the water channel. Spatial structural characteristics of the water town, Wuzhen and Nanxun in Zhejiang Province are as follows. First, location of town, spatial framework, lot division, and architectural style get determined by the water channel. The water channel is constructed in cross shape, T-shape, or in combination. Secondly, public space of water town is established along main water channel. Visually and functionally alternating private buildings are established on the water channel side and they are creating unique landscape of Jiangnan water town in overall harmony. Thirdly, residential area is established on the east-west water channel side with southward sunny-faced arrangement and waterside residence is in introvert spatial structure with courtyard but the exterior space is connected with water channel intimately. Fourthly, various spatial components along the water channel enrich the sense of place in water town. The components are corridor with roof, tea house, waterside steps, waterside theater and watergate etc. Uniqueness of place is becoming the core competence in modern townscape. In this aspect, Jiangnan water town with historical and cultural accumulation is suggesting a significant implication. Major implications are as follows. First, promotion of proximity to the water is the basic value that the spatial plan of waterfront needs to pursue. Secondly, mixed use is essential for effective land use and revitalization of waterfront. Thirdly, waterfront plan based on the local uniqueness as the place asset is being required.