• Title/Summary/Keyword: wetland restoration

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Wetlands Classifying Characteristics by Wetland Classifying Systems - Cases on the Tu-men River and Han River - (습지 유형 분류 체계별 습지 분류 특성 -두만강과 한강을 사례로-)

  • Zhu, Weihong;Koo, Bon-Hak
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.9 no.6
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    • pp.152-161
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    • 2006
  • This study is the primary study for analyzing the classifying characteristics of river wetlands in Korea and China. It is the first step for constructing the wetlands inventories and establishing the wetland conservation strategies in North-Eastern Asia. The case study sites are Han-river which is the representative river of Korea and Tu-men river which is flowing on the borderline of 3 nations, China, North Korea and Russia. The results are as follows : 1. The types of wetlands of Han-river in Korea and Tumen-river in China were classified by the methods of Koo(2002) which is focused on the topography and hydrology and Zhu(2002) which is emphasized the vegetation and habitats. 2. There are three features which are hydrology, topography and soil cover, and vegetation to classify the wetlands into each types. 3. According to the two wetland types by Koo and Zhu, classification system, wetlands in the case study area(Han river and Duman river) were classified by types. 4. In Koo's classifying system(2002), lots of Riverine, Lacustrins and Flat wetlands are found because the topographical and hydrological features are emphasized. On the contrary in Zhu's system(2002), there are lots of Palustrine wetlands because of emphasizing the vegetation. 5. By the topographic and geological characteristics of each sites, there are more wetland types in the lower Tumen river.

Ecological Restoration Plan for a Small Scale Public Construction Area - A Case Study on Ilsan Water Treatment Plant, Goyang-Si - (소규모 공공시설 개발 사업지의 생태적 복원 연구 - 고양시 일산정수장 조성예정지를 사례로 -)

  • Lee, soo-Dong;Kang, Hyun-Kyung
    • Journal of the Korean Institute of Landscape Architecture
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    • v.35 no.6
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    • pp.48-63
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    • 2008
  • This research is to apply suitable natural ecosystem evaluation criteria in order to develop the ecosystem conservation, restoration and ways to build substitute habitats as a compensation plan for damaged soundly natural ecosystems in small-scale projects such as resource recovery facility, filtration, etc. The environmental ecology evaluation i.e. generally based on their actual vegetation, community structure, wildlife, water system survey were measured the primary plans for reflecting unique natural environment level of site. As a result, it is necessary to conserve the land in fallow type of wetland, good conservative condition of deciduous forest, wetlanded watercourse for amphibia and reptiles crossing. However, the plan of filtration plant was destroyed wetland(sound ecosystem), natural forest, asian toad spawning area. According to the result of it schemed to build alternative wetland and spawning area, plan to healthy ecosystem and surface soil transplantation as compensation plan. The alternative wetland and spawning area are not only created a various water levels like depth of water is $0{\sim}30cm,\;30{\sim}60cm$, more than 1.5m but also it leads to asian toad spawning and wildlife inhabitant. Moreover, the ecosystem and surface soil transplantation be applied to use the Quercus acutissima forest resources(114 upper trees, 71 canopy trees, 401 shrubs) and surface soil$(5,072m^3)$ in ecology creation sets.

A Case Study on Selecting Sites for Wetland Restoration - Focusing on the Research Survey of National Inland Wetlands Monitoring in 2016 - (복원대상습지 선정 사례 연구 - 2016년 전국내륙습지 모니터링 결과를 중심으로 -)

  • Lee, Jung-Hwan;Lee, Chang-Su;Kim, Mi-Jeong
    • Journal of Environmental Impact Assessment
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    • v.28 no.1
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    • pp.71-81
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    • 2019
  • This study aims to provide basic data for the decision-making process in selecting sites for wetland restoration projects. To this end, the current list of demaged wetlands was identified based on the findings from the nationwide monitoring project in 2016 targeted at wetlands in inland areas. Then, to determine the necessity of restoration for these demaged sites, the cause of demage was investigated, and their conservation value was examined from an ecological and legal perspective. The 2016 monitoring project identified a total of 20 demaged wetlands, of which one site was deemed to have high conservation value through analysis of its ecological and legal values and on-site reviews. The results of this study are expected to support policymakers' decision-making in selecting wetlands for restoration projects since it identifies priority sites among demaged wetlands that require immediate restoration efforts. It should also be pointed out that wetlands in South Korea cannot benefit from legal protection despite their high conservation value unless they have a designated status as protected areas.

Ecological Studies of Fauna in and around Do-rim Urban Streams (도림천 및 주변지역에 서식하는 육상동물상에 관한 생태학적 연구)

  • Lee, Sang-Don
    • Journal of Wetlands Research
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    • v.11 no.3
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    • pp.105-113
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    • 2009
  • Wetland ecosystem is one of the most productive one in nature. Wetland is an areas in which transit between terrestrial and stream ecosystem. This study aims at identifying fanua (birds, mammals, amphibians and reptiles) in urban stream of Dorim. A total of 3 orders, 6 families and 9 species for mammals; 17 families, 30 species of birds; 3 families and 4 species of amphibians and 2 families and 3 species of reptiles were reported. This is a through study for species identification in Dorim steams. This study suggested that various organisms were found around Dorim stream and this study will better serve as a stepping stone for wetland restoration and establishment of biotope where organisms breed and survive.

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Categorized wetland preference and life forms of the vascular plants in the Korean Peninsula

  • Choung, Yeonsook;Min, Byeong Mee;Lee, Kyu Song;Cho, Kang-Hyun;Joo, Kwang Yeong;Hyun, Jin-Oh;Na, Hye Ryun;Oh, Hyun Kyung;Nam, Gi-Heum;Kim, Jin-Seok;Cho, Soyeon;Lee, Jongsung;Jung, Sangyeop;Lee, Jaeyeon
    • Journal of Ecology and Environment
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    • v.45 no.1
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    • pp.72-77
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    • 2021
  • Background: In 2020, a categorized list of wetland preferences, major habitats, and life forms of 4145 vascular plant taxa occurring in the Korean Peninsula was published by the National Institute of Biological Resources. We analyzed the list and explored the distribution patterns of the five categorized groups according to wetland preference, along with the information on the major habitats and the life forms of the plants belonging to those categories. Results: Out of 4145 taxa, we found that 729 wetland plant taxa (18%) occur in Korea: 401 obligate wetland plants and 328 facultative wetland plants. Among the 729 wetland taxa, the majority (73%) was hygrophytes and the remaining 27% was aquatic macrophytes. Furthermore, almost all of the wetland taxa are herbs; so, woody plants are only 4.7%. The 16 carnivorous taxa distributed in Korea were characterized as obligate wetland plants. Conclusions: We expect the categorized information would promote understanding of the characteristics of the plant species and would be an important source for understanding, conservation, and restoration of wetland ecosystems.

Type Classification and Functional Assessment of a Dam Lake - In the Case of the Boryung Lake - (댐 저수지 내 습지 유형 및 기능평가 연구 - 보령호를 중심으로 -)

  • Yang, Byoung-Ho;Cho, Un-Sik;Koo, Bon-Hak
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.8 no.6
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    • pp.80-91
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    • 2005
  • This research aims to classify wetland types and evaluate functions of a dam lake. The case study area is Boryung lake in Boryung City. In this study was carried out based upon field surveys, drawing maps and publication, and modified-RAM which can evaluate the general functions and conservation values of wetlands. Eight functions of 2-12 variables each are analyzed for assessing the wetland functions. The analysis shows that several types of wetlands were identified, such as Palustrine/ Perennial/ Hydrophytes, Palustrine/ Perennial/ Openwater, Palustrine/ Seasonal/ Herbal, Palustrine/ Seasonal/ Shrub and Scrub, Palustrine/ Seasonal/ Hydrophye, and Riparian/ Seasonal/ Shrub in the Boryung lake. The average level of functions of the wetlands is very "HIGH", and it is recommended that prompt conservation measures should be taken.

The Study on the Management and Application through Analysis of Actual Condition of Palustrine Wetland in Rural Area (농촌마을 소택형습지 실태 분석을 통한 관리 및 활용방안 연구)

  • Kang, Bang-Hun;Son, Jin-Kwan;Kim, Mi-Heui;Kim, Nam-Choon
    • Journal of Korean Society of Rural Planning
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    • v.16 no.3
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    • pp.103-115
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    • 2010
  • This study was accompanied to develop the management and application plans as resources for rural tourism through the analysis of distribution characteristics, inhabitants' practical use, need item for management and application, and aesthetic/recreation function of Palustrine wetland in rural area. The 2.3 Palustrine wetland per farm village were located, and 77.5% of total wetland was used by agricultural water, landscape, rural tourism The management and water quality were steadily getting better in used wetland than in unused wetland. Also, 91.8% of respondents answered that there is a practical use plan afterward, and much preferred the mode of ecotourism through restoration of ecological wetland. As the results from the appropriateness evaluation of management and application in used wetland for ecotourism, improvement item was required in observation deck, entrance lane, guidance facilities etc. And, insufficient result was deduced in appropriateness of operation program and special learning course, and in participation of inhabitants and experts. The result of evaluation of the aesthetic and recreation functions generally appeared high, but the need improvement item was required in artificial water wall and plantation base that deteriorate biological diversity. These results will be used to data for conservation, management and practical use of wetland, an important natural resource in farm village, which are confronted in crisis of land reclamation by use reduction of use and false management.

Functional Assessment for Preservation and Restoration of Wetland-type Old River Channel:Mangyoung River (습지형 구하도 보전 및 복원을 위한 기능 평가: 만경강 대상)

  • Hong, Il;Kang, Joon Gu;Kang, Su Jin;Yeo, Hong Koo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.32 no.4B
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    • pp.213-220
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    • 2012
  • Old river channels have been formed by engineering a straight channel in Korea. This can be classified as wetland-type or land-type. The wetland-type old river channel uses parts of agricultural water supply. However, the channels have been neglected since there are problems associated with poor water quality, reduced water level, ecosystem disturbance, etc. Thus, river maintenance through preservation and restoration of old river channel can be very effective in watershed management. To achieve this, functional assessment of wetland-type old river channel is a priority need. This study applied the wetland-type channel in Mangyoung river for functional assessment. It was formed these channels with regard to the following four major criteria (Natureless, Habitat, Water-friendliness and Water quality) and 21 indices. The indices managed by measuring depending in weights. Consequently, wetland-type channel in Mangyoung river was in good condition both natureless and habitat, while it was a fragile environment in water-friendliness and water quality. In particular, the areas where it has insufficiency water and water suffering from eutrophication needs urgent improvement. This results will be used to utilize wetland-type old river channel as watershed management.

A Study on the Reduction of Soil Particle Dissociation Rate by the Root of 'Salix Gracilistyla' (갯버들 근계의 토양 입자 해리 억제효과에 관한 연구)

  • Lee, Chun-Seok;Park, Myung-Ahn;Kang, Ho-Chul
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.6 no.3
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    • pp.69-78
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    • 2003
  • The main purpose of this study was to verify the shore margin protection effect of the root system of Salix gracilistyla Miq. developed from direct sticking cuttings on wetland, focusing on the effect of the root system reducing soil particle dissociation rate in water. The soil dissociation rate was examined through slaking tests with cylindric pure soil column at maximum particle density and the same size column of root reinforced soil. The dry weight of remained soil was measured after 5, 10, 15, 30minutes and 1, 6, 12, 24, 48hours inundation. As results, the soil particles began to dissociate severely at 10 minutes and only 10% of soil particles were left after 25minutes inundation. The stable slope angle of pure soil was $36^{\circ}$after 24 hours. On the other hand, the columns of root reinforced soil were stable even after 24hours, being dissociated only 7.2% of soil particles. So, it was revealed that the root system was very effective materials protecting more than 80% of soil particle from dissociation in inundation.