• Title/Summary/Keyword: Stream Landscape

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Review on the Improvement Works of Ecological Stream in Rural Areal - A Focused on Sijeon-ri Dogo-myeon Asan City - (농촌지역 하천정비공사 실태와 제언 -아산시 도고면 시전리를 대상으로-)

  • Nam, Yun-Cheol
    • Journal of the Korean Institute of Rural Architecture
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    • v.17 no.2
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    • pp.51-58
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    • 2015
  • 10 years ago, in Sijeon-ri, Dogo-myeon, Asan-si, the existing stream was repaired to develope Mt. Dogo trail and irrigation systems through road expansion pavement construction and small stream repair construction. The trees such as persimmon and willow are eliminated that rowed on both sides of the stream and dredging work to dig the rock and sand have been performed. As a result, wide asphalt road was built, also flood damage worries were reduced. 10 years passed and now, how did local residents think about the stream repaired before and after? Village residents, public officials, and the stream construction engineer were interviewed. Villagers indicated a problems that brook became a place where water peppers were taking over and water was stagnating due to the slow velocity so nothing could live and natural landscape like a wash place and the cascade disappeared, because rock and sand were taken out brought soil into the brook. Public officials and engineers were aware of the problems at the time of the stream. Now that construction is completed after 10 years, Both realistically and budgetary to restoration would be difficult. However, it is necessary to seek for waterfront space which can be restored or replaced by a part of the stream like similarly before. In addition, it is necessary to restore to the progression of a natural stream which connect with stairs(or slope) - small waterfalls - pools - wash place. In this paper, we hope to take a lesson from the Sijeon-ri model and make rural stream construction be prepared with consideration about not only distinct characteristics of specific area but also the opinion of local resident.

Research Trends Concerning Landscape Design in the Journal of the Korean Institute of Landscape Architecture (한국조경학회지 게재논문 조경설계 분야의 연구경향)

  • 김영대
    • Journal of the Korean Institute of Landscape Architecture
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    • v.31 no.6
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    • pp.107-119
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    • 2004
  • special subjects, from basic data-building to applied design itself, and from how-why studies to theory building research. It seems that the research concerns are mainly the explanation of the processes of design projects rather than the application and expression of design theory and conceptual work itself. The articles do not show a clear trend or design concerns that would lead landscape architecture firms or its market. A few articles deal with aesthetical theory and with design criticism that could be one of landscape design's fundamental theories. It is not enough to regard the Journal of the Korean Institute of Landscape Architecture as the main stream of contemporary Korean landscape design trends. More research in the field of landscape design need to focus on pre-research work rather than on post-work reports. More research work in the field of landscape aesthetics is also required. The format of the journal needs to be reformed to include more design research papers that are of a free-presentation style in nature.

Vegetation Sectional View and Flora in the Sinpyeong Stream (Imsil), Churyeong Stream (Jeongeup) (신평천(임실), 추령천(정읍) 일대의 식물상 및 식생 단면도)

  • Oh, Hyun-Kyung;Beon, Mu-Sup
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.14 no.2
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    • pp.59-81
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    • 2011
  • The flora of the Sinpyeong and Churyeong stream were listed 324 taxa; 87 families, 227 genera, 289 species, 1 subspecies, 31 varieties and 3 forms. The Sinpyeong stream were 249 taxa and Churyeong stream were 221 taxa. Based on the rare plants (IUCN) by the Korea Forest Service and Korea National Arboretum were recorded; Penthorum chinense (Crassulaceae), etc. and endemic plants, 6 taxa; Weigela subsessilis (Caprifoliaceae), Lycoris flavescens (Amarylidaceae), etc. Based on the specific plants by floral region were total 12 taxa (3.7% of all 324 taxa of flora); Monochoria korsakowi (Pontederiaceae), etc. in class III. 10 taxa (Salix glandulosa (Salicaceae), Ulmus parvifolia (Ulmaceae), Impatiens noli-tangere (Balsaminaceae), Grewia biloba var. parviflora (Tiliaceae), Nymphoides peltata (Gentianaceae), Actinostemma lobatum (Cucurbitaceae), Cirsium pendulum (Compositae), Microstegium japonicum (Gramineae), etc.) in class I. Based on the naturalized plants, 51 taxa and ecosystem disturbing wild plants, 6 taxa (Rumex acetosella, Sicyos angulatus, Aster pilosus, Ambrosia artemisiaefolia, Hypochaeris radicata, Paspalum distichum var. distichum) and naturalization rate was 15.7% of all 324 taxa of flora, urbanization index was 18.8% of all 271 taxa of naturalized plants. Based on the hydrophytes, 23 taxa and emergent hydrophytes were 17 taxa, floating-leaved hydrophytes were 3 taxa, submergent hydrophytes were 2 taxa, free-floating hydrophytes was Spirodela polyrhiza.

A Study on Zoning and Management of Conservation Area and Ecological Management Plan on Urban Stream Using Marxan - A Case of Jungrangcheon(Stream) in Seoul - (Marxan을 이용한 도시하천의 보전지역 설정 및 생태적 관리방안 연구 - 서울시 중랑천을 대상으로 -)

  • Yun, Ho-Geun;Han, Bong-Ho;Kwak, Jeong-In
    • Journal of the Korean Institute of Landscape Architecture
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    • v.48 no.5
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    • pp.16-27
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    • 2020
  • This study presented a plan for the establishment of conservation areas and the ecological management of those areas in the stream based on the Marxan with Zones Program for a Jungrangcheon Stream in downtown Seoul. The application of the Marxan with Zones Program included the stage of planning unit setting, application of mapping indices, numerical correction for repetitive analysis, creation of scenario-specific optimizations through analysis, analysis of sensitivity by scenario, review, and the selection of optimal plans among the scenarios considered. As a result of the establishment of a conservation area near Jungrangcheon Stream, which has several watershed areas, including an upper-middle-class wildlife protection zone, which was previously designated and managed as a conservation area, and the migratory protection zone downstream of Jungrangcheon Stream were designated as key conservation areas. A number of wild birds were observed in the upper reaches of Jungrangcheon Stream, adjacent to the forests of Suraksan Mountain and Dobongsan Mountain. The downstream area is a habitat for migratory birds that travel along the stream and the adjacent river ecosystem, including the Hangang River confluence and Cheonggyecheon Stream confluence. Therefore, the upper and lower reaches of Jungrangcheon Stream are connected to forest ecosystems such as Dobongsan Mountain, Suraksan Mountain, and Eungbongsan Mountain, as well as urban green area and river ecosystems in the basin area, which influence the establishment of conservation areas. This study verified the establishment and evaluation of existing conservation areas through the Marxan with Zones Program during the verification of the conservation areas and was presented as in-stream management and basin management method to manage the basin areas derived from core conservation areas determined through the program.

Identifying Riparian Water Landscape Change Detection Using Digital Photogrammetry Technique

  • Ahn Seung-mahn;Lee Kyoo-seock
    • Proceedings of the KSRS Conference
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    • 2004.10a
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    • pp.25-27
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    • 2004
  • Han River water landscape changes between 1966 and 2002 were detected by interpreting IKONOS images, aerial photographs. Digital photogrammetry technique was used in this process. Most of water landscape change are disappearance of sandbars and meandering streams in 1966. It is mainly due to the stream straightening for housing site development.

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Density and Species Composition of Soil Seed Bank in Rural Stream Topsoil (농촌하천 표토내 매토종자의 발아량 및 종구성)

  • Kim, Se-Chang;Park, Bong-Ju;Kim, Won-Tae;Yoon, Yong-Han;Cho, Yong-Hyeon;Kang, Hee-Kyoung;Oh, Hyun-Kyung;Shin, Kyung-Jun;Eo, Yang-Joon;Yoon, Taek-Seong;Jang, Kwang-Eun;Kwak, Moo-Young
    • Journal of Environmental Science International
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    • v.21 no.11
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    • pp.1419-1424
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    • 2012
  • Purpose of this study was to evaluate germination characteristics of soil seed bank in rural stream topsoil using seedling emergence method in order to provide data for future ecological restoration of stream utilizing topsoil. There were 24 families, 52 genera, 61 taxa of soil seed bank flora found in topsoil from 6 rural streams. The most frequently found taxa were Compositae (12 taxa) followed by Gramineae (8 taxa), Caryophyllaceae (5 taxa), Cruciferae (4 taxa), Scrophulariaceae, Labiatae, Polygonaceae and Cyperaceae. Plant with the most number of germination was Stellaria aquatica followed by Erigeron annuus, Imperata cylindrica var. koenigii, Poa annua, Cyperus microiria and Veronica undulata. Naturalized plants found were Erigeron annuus, Rumex crispus, Oenothera odorata, Cerastium glomeratum, Bidens frondosa, Erigeron philadelphicus, etc.

Development of Revegetation Technique for Water Attacking Point Using Waterlogged Prevention Frame Revetment (침수방틀을 이용한 자연형 하천의 수충부 녹화공법 개발)

  • Moon, Seok Ki;Lee, Eun Yeob;Han, Sung Sik;Lee, Ki Joon
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.4 no.1
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    • pp.98-109
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    • 2001
  • This study aimed to investigate the effect of revegetation technique for water attacking point using waterlogged prevention frame revetment. In this study, we evaluate frame revetment stability, water quality, plant growth and ecological and envirnomental changes in Mooshim streamside landscape. The results are as follows; 1) The waterlogged prevention frame revetment appeared to be stable despite of two big floods. The materials used for the revetment were not eroded on the water attacking point. Thus, we confirmed the effect of scour prevention of the frame work. 2) The effects of the frame revetment on the water quality appeared to be good for the surrounding environment. Dissolved Oxygen(DO) was higher about $0.4{\sim}0.6mg/{\ell}$ at the frame revetment than that of the main stream flow. pH value was lower about 0.4~0.5. Electric Conductivity(EC) showed lower about $0.8{\sim}1.1{\mu}s/cm$. at submersion prevent frame than the low-flow of the stream. Turbidity was lower about $0.6{\sim}1.2mg/{\ell}$. 3) As the effects on ecological and environmental conditions, we discovered a number of carassius auratus and Zacco platypus in the frame revetment area. Also, sympetrum balteata, coenagrionidae was observed frequently. 4) The plant growth did not appear to tumble or wither despite of two big floods. The visual rating of plant growth was evaluated as medium (around 5 point) 5) The landscape analysis derived four factors(i.e. the harmony, the variation, the flexibility and the provincial characteristics) from the factor analysis.

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A Study on the Landscape Arrangement Simulation System for Small Streams (소하천 경관정비 모의시스템에 관한 연구)

  • 김선주;윤경섭;이광야;박성삼
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.39 no.5
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    • pp.86-96
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    • 1997
  • The arrangement of small streams in rural area, in the past times, attached importance to the prevention of flood damage through the straightening and lining of streams. Recently, the way of small stream arrangement is introducing the idea of water friendly environment or friendly space. As a result, there has been much concern with water favorable river management model which may lead to control flood. However, it is very difficult to develop a model applicable to all types of rivers, since each river has different flow velocity, flow amount and unique ecological characteristics. In this study, photo processing technique, one of landscape simulation methods, has been adopted because it helps to visually express and comprehensively evaluate pre and post scenery and easily applicable. Some important guideline and technique for the planning of small stream landscape arrangement are mentioned in this study. The simulation system for acquiring water favorable space and arranging landscapes needs to develop database which can forecast various types of landscape. It may also be used for the bases of planning and designing river environment arrangement. Computer aided image processing system enables to make selective planning in river environment arrangement. It may also enables to develop the methods for river environment development, ecology conservation, and multipurpose space utilization. Moreover, it makes economic river arrangement by applying river environment arrangement methods relevant to geographical characteristics. There are some limitations in this study, such as shortage of exact investigation on the stream direction and velocity in landscape arrangement. Continuous monitoring and research may be required to develop techniques through the application of computer graphics and digital image processing.

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Eco-corridor Master Plan Connecting Urban Forests via the Urban Stream (도시하천(都市河川)을 이용(利用)한 도시림간(都市林間) 생태통로(生態通路) 조성(造成) 기본계획(基本計劃))

  • Kahng, Byung-Seon;Lee, Kyoo-Seock
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.4 no.4
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    • pp.36-45
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    • 2001
  • Natural disturbances and human development can cause habitat fragmentation. Plant and wildlife can become isolated, and habitat fragmentation and shrinkage have been recognized as a key issue facing the conservation of biological diversity. However, eco-corridors can alleviate the problem by providing linkages between isolated patches. The purpose of this study is to plan the eco-corridor for connecting urban forest via the urban stream with low cost and to restore the ecosystem. The results were as follows (1) Falco subbuteo, and Dryocopus martius inhabit in the study site. They are protected species designated by Korean Ministry of Environment. Thus the study site should be preserved as urban wildlife habitat species biodiversity (2) If the biodiversity of the study site is maintained properly, the eco-corridor can be constructed with low cost.

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Analysis on the Flora and Vegetation of Geumsan and Gisa Stream Located in Chunchengnam-do (충청남도 금산천과 기사천의 식물상 및 식생분석)

  • Park, In-Hwan;Cho, Kwang-Jin;Sagong, Jung-Hee;Kim, Hea-Young
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.17 no.1
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    • pp.45-64
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    • 2014
  • This study was carried out to offer the ecological data for restoring and maintaining a local stream by analyzing the vegetation and flora in Geumsan Stream and Gisa Stream, Geumsan-gun, Chungcheongnam-do, Korea. As a result of comparison of realities of land use near Geumsan Stream and Gisa Stream, in Geumsan Stream, the ratio of residential areas, commercial and business places, and places of transportation facilities was high. With these types of land use aggregating densely in the center, farmlands were formed on both sides. On the other hand, in Gisa Stream, farmlands were distributed evenly in all sections. As a result of comparison of flora of the two streams, Geumsan Stream had a total of 166 taxons including 53 families, 131 genuses, 139 species, 23 varieties, and 4 forms, and Gisa Stream had a total of 142 taxons including 42 families, 111 genuses, 116 species, 21 varieties, and 5 forms. As a result of calculation of the Naturalization Index and Urbanization Index, the indices were analyzed to be 23.5% and 12.1% in Geumsan Stream and to be 21.8% and 9.7% in Gisa Stream, respectively. Hence, Geumsan Stream showed higher figures in both evaluation indices than those of Gisa Stream. In addition, as a result of calculation of the Actual Urbanization Index, which is the index supplemented by considering the species pool and area, it could be known that Geumsan Stream (0.0285) was urbanized more than Gisa Stream (0.0107) by about 2.7 times. A total of 18 plant communities were classified in Geumsan Stream and Gisa Stream. In Geumsan Stream, 14 vegetation types were identified, and it was analyzed that there are various vegetation types including Phalaris arundinacea community, Zoysia japonica community, Phragmites japonica-Phalaris arundinacea community, etc. evenly distributed. 11 vegetation types were identified in Gisa Stream, and it was examined that Phragmites japonica community is widely distributed in all sections.