• Title/Summary/Keyword: RESTORATION OF ECOSYSTEM

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Sustainable Road Construction Techniques with Special Emphasis on the Conservation and Restoration of Ecosystem in Japan (생태계의 보전·복원을 고려한 일본의 환경친화적 도로건설 기술 사례 연구)

  • Sung, Hyun-Chan;Moon, Da-Mi
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.6 no.4
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    • pp.74-84
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    • 2003
  • This study focuses on the technology to reduce destruction and damages of an ecosystem in the process of road construction. The authors investigated the ecological conservation activities and restoration technology which were applied to the construction of 2 bridges in Japan. The key results are as following : First, the most important thing in constructing eco-road was the linear design. Second, we need to adopt the environmental construction forms and materials to the design of structure. Finally, we have to use environment-friendly methods for the sake of the ecosystem at the real construction stage. Adopting those technologies has at least a few merits. First, we can achieve out goals : conservation and restoration in the local habitat. Second, we can save money instead of building a eco-bridge. There is a further advantage which makes it possible to develop environment-friendly technologies than before by drawing developers' attention.

The Economic Valuation of Ecosystem Restoration in Suncheon Bay (순천만 생태복원에 따른 경제적 가치 평가)

  • Hwang, Minsup;Lee, Myung Kyoon;Jung, Tae Yong
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.17 no.4
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    • pp.69-79
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    • 2014
  • Coastal wetlands are among the most productive biomes in the Earth. The economic values include the direct use of a coastal wetland's ecosystem services, such as food, raw materials, recreation, and tourism. Other values comprise the indirect use of a coastal wetland's ecosystem services, such as carbon sequestration, waste-water treatment, and erosion prevention. In particular, Suncheon Bay is recently attracting attention as the most successful case of the preservation and restoration. This study applies Travel Cost Method (TCM) to estimate the economic value by drawing the demand curve for trips to Suncheon Bay. The TCM is an approach used for economic valuation of non-market goods and services. Based on the results of TCM, this study shows that the economic benefit from recreational uses of the site adds up to \174.7 billion per year. It is also significant in the sense that monetary information is suggested to help local policy makers evaluate the realistic values of coastal wetlands.

Selection of Pollution-tolerant Plants and Restoration Planning to Recover the Forest Ecosystem Degraded by Air Pollution in the Industrial Complex

  • Lee, Chang-Seok;Moon, Jeong-Suk;Hwangbo, Jun-Kwon;You, Young-Han
    • Animal cells and systems
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    • v.6 no.1
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    • pp.59-64
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    • 2002
  • To restore the forest ecosystem severely damaged by air pollution around industrial complexes, plants tolerant to the polluted environment were selected by transplant and pot culture experiments. A restoration plan by arranging those tolerant species was prepared based on the ecological diagnostic results on an area that requires restoration. Transplant experiment in Ulsan and Yeocheon areas, the representative industrial complexes in Korea, selected eight tolerant species of Quercus aliena, Q. acutissima, Q. dentata, Q. mongolica, Q. serrata, Ligustrum japonicum, Styrax japonica, and Poncirus trifoliata. Cultivation in the polluted soil transported from the Ulsan and Yeocheon industrial complexes chose five tolerant plants of Q. aliena, Q. acutissima, Q. serrata, Styrax japonica, and Alnus firma. A plan to restore the forest ecosystem of Mt. Dotjil, which experienced the severest ecosystem degradation in the Ulsan industrial complex, was prepared by applying those tolerant species along with treatment for soil amelioration. Arrangement of the tolerant species was designed by considering their ecological characteristics including distribution range on topography and shade tolerance. Soil amelioration was focused on the improvement of fertility and moisture conditions.

Assessment of Definitions and Models of River Restoration based on the Functions, Services, and Values of River Ecosystem (하천생태계 기능, 서비스, 가치 관점에서 본 하천복원 정의 및 모형의 고찰)

  • Woo, Hyoseop
    • Ecology and Resilient Infrastructure
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    • v.4 no.3
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    • pp.123-129
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    • 2017
  • This study aims to identify and reduce the gaps of understandings and thoughts of river restoration between river engineers and ecologists by logically re-examining the definition and value of river restoration. For this purpose, function, and goods and services of river ecosystem are analyzed based on the study of those by de Groot et al. (2002). From the result of this analysis, definitions and strategies of presently-known river restoration and its similar activities are re-examined. Next, presently-known river restoration models, ERM (Ecological restoration model), ARM (Amenity restoration model) and semi-ERM (semi-Ecological restoration model), are reinforced in their frameworks. This study is expected to narrow the gap, between the professionals of different fields, of their understandings and thoughts of river restoration.

Development and Application of Natural Ecosystem Value Assessment Model in Land Development (개발사업지구 내 자연생태계 가치평가모델 개발 및 적용)

  • Lee, Dong-Kun;Yi, Hyim-Yi;Kim, Eun-Young;Choi, Jaeyong
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.3
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    • pp.59-71
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    • 2009
  • The goals of this study were to development Natural Ecosystem Value Assessment Model, to suggest the practical applicability of the Natural Ecosystem value assessment for development areas, and to assess natural ecosystem quantitatively using GIS. The Model can evaluate Natural Ecosystem Value between before and after land developments. To select indicators for the model, we conducted the literature reviews. and six indicators and the standard of evaluation had been developed through the expert interviews and literature reviews. the relative importance of the evaluation index throught two times expert questionnaires was found out. the Natural Ecosystem Value Assessment Model has been established, The results demonstrate that although the suggested six indicators are arranged by priority, to maintain quantitative and qualitative the natural ecosystem value, all indicators are desirable to be maintained complementarily. The findings of this study suggest that the natural ecosystem value assessment model appears to be effective an assessment for damaged natural environment value and possible to assign a score value. Also, this model can be applied to research areas and has implications to help maintain the natural ecosystem in land development districts.

Strategy Prospects of Environmental Restoration of Stream Side in Japan(V) -With a Special Reference to the Application of Korean Style- (일본(日本)에서 계류변(溪流邊)의 환경복원(環境復元) 발전전략(發展戰略)(V) -한국적(韓國的) 적용(適用)을 중심(中心)으로-)

  • Park, Jae-Hyeon;Woo, Bo-Myeong;Kwon, Tae-Ho;Lee, Heon-Ho
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.4 no.1
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    • pp.80-89
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    • 2001
  • The objective of this study was to introduce the current status and development strategy for the environmental restoration of stream side in Japan, and to consider the methodology which could be effectively applied to the environmental restoration of stream side in Korea. 1. We should establish a new paradigm of forest conservation and erosion control which can emphasize the restoration of the stream side ecosystem and reduce soil movement in the areas. Also, in the past, the objective of forest conservation and erosion control was to fix soil by constructing permanent structures. The direction of future forest conservation and erosion control needs to be new forest conservation and erosion control technology to prevent large scale soil movement but allow small scale soil movement to conserve sound ecosystem and biotic habitats. 2. In the past, the goal of forest conservation and erosion control planning was to fix the amount of soil movement by constructing permanent facilities. Forest conservation and erosion control planning in the future needs to change the techniques which could prevent soil movement from large scale of soil disasters, but allow soil movement effectively to a small and middle scale's soil movement. Also, it is considered to change erosion control dams from non passing type to passing type. 3. In the point of ecological conservation aspects, we should evaluate the effects of new forest conservation and erosion control methods which are emphasized on the restoration of the stream side ecosystem. Also, forest conservation and erosion control construction projects for restoring stream and river ecosystem should be planned for perfectly restorating their ecosystems by the way of sustainable maintenance and management. 4. The restoration direction of stream and river ecosystems needs to be restoring the diversity of small geographies such as waterway, shoal and puddles rather than flattening stream bed. And the restoration of the stream side ecosystem should provide continuity of the stream side environment which allows desirable biological habitats, and environmentally sound facilities to harmonize with the environment.

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The Differentiation on the Plant Flora and Vegetation Caused by the Different Technique of Stream Restoration at the Seo-Ho Stream (하천 조성 기법에 따른 서호천 식생 및 식물상의 차이 비교)

  • Kim, Song-Yee;Kim, Hyea-Ju;Lee, Kyoo-Seock
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.7 no.3
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    • pp.26-34
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    • 2004
  • It is expected that the different techniques of stream restoration could be caused the different conditions of the stream ecosystem. The study was to investigate and compare plants and vegetation clusters of appearing plant species in the upper and lower section of the Seo-Ho stream, It was classified and listed all of the plants appeared in the upper and lower section of the stream, It was used the belt-transect method and Unweighted pair group method using arithmetic algorithm in order to examine and analyzed discover the vegetation clusters, In the result, 28 families and 114 species appeared in the upper section, In the other side, 26 families and 93 species appeared in the lower section of the steam. The naturalized index of the upper section was 21%, and that of the lower section was 27%. In addition, the upper section has more various geographical features than lower section of the stream. So that, consequently the study shows that the different techniques of stream restoration could be caused the different growth of the stream ecosystem.

Follow-up Monitoring & Adaptive Management after Ecological Restoration for the Stream - Focused the Hakui Stream in Anyang City - (생태하천 복원 후 모니터링과 적응관리 - 안양시 학의천을 중심으로 -)

  • Choi, jungkwon;Choi, mikyoung;Choi, cheolbin
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.18 no.6
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    • pp.85-95
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    • 2015
  • Recent years, nationwide projects for ecological restoration are implemented with emerging issues on the stream ecosystem. In order to enhance effectiveness of the ecosystem restoration and reduce negative impact, the appraisal of effectiveness through the follow-up monitoring and the adaptive management process are executed in consecutive phase. In this study, planning phase, monitoring and adaptive management in Hakui stream which is part of An Yang stream restoration project is introduced as representative ongoing case of effective adaptive management. The aim of this study is to verify the adaptive management process and suggest direction of effective restoration. Restoration project of Hakui stream resulted in increasing number and diversity of species (vegetation, fish, bird, invertbrates, amphibian and reptilia) according to monitoring from 2004 to 2013, and enhancing natural river landscape by evaluation of river naturalness among 2001(before restoration), 2007 (after), 2015 (recent). However, excessive vegetation expansion or sediment deposition on channel over time caused unexpected results such as terrestrialization or degradation of habitats. Adaptive management action such as removing disturbance species (Humulus japonicus)(2007), coppicing willow (2007), release of march snail (2007), creation of wetland (2014) were implemented based on monitoring results. And then appraisal of management action was discussed.

Improvement of Cooperation Charge on Conservation of Ecosystem Reflected Natural Capitals Valuation - Focused on Forest Area - (자연자산의 가치를 반영한 생태계보전협력금 제도 개선 방안 - 산림지역을 중심으로 -)

  • Park, Jin-Han;Lee, Dong-Kun;Tanaka, Riwako;Kim, Jung-Taek;Jeon, Seong-Woo;Lee, Woo-Kyun;Kim, Joon-Soon;Jung, Tae-Yong
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.17 no.1
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    • pp.203-213
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    • 2014
  • In Korea, a cooperation charge on conservation of ecosystem is imposed to prevent indiscriminate development. The total amount of this charge is determined by multiplying the size of the destroyed area by a value per unit area and the area index within 5 billion won. Since 2001, the charge per unit area has been determined to be $250won/m^2$. In this study, we estimated the unit value of ecosystem services per year using benefit transfer method, with a focus on forest resources. According to our results, forest resources have a value of about $3,500won/m^2$ per year. When the non-use value is subtracted, that figure becomes approximately $1,300won/m^2$. If this value incorporates the unit value of the cooperation charge on conservation of ecosystem, it will increase. To comply with the original intent of the cooperation charge on conservation of ecosystem, the fund must be used to improve ecosystem services, including the restoration of a destroyed area or the purchase of new land.

Monitoring of Detention Basin after Restoration at Joogyo Creek (주교천 천변저류지의 사후 모니터링)

  • Kim, Ki Heung;Lee, Hyeong Rae;Kim, Cheol Soo
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.14 no.3
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    • pp.177-194
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    • 2011
  • In order to assess ecologically for the restored detention basin in Joogyo creek, this study carried out a monitoring on the ecosystem of the detention basin. The study site was a small detention basin with an area $6,350m^2$, which had been established in March, 2004. The monitoring started in August and November, 2007. Terrestrial, riparian, and aquatic plants species have increased about 2 times at detention basin compared to that of streamside. Mammals, birds, reptiles, amphibians, aquatic insects and crustaceans were found more in species at detention basin, and especially there were a lot of more fish species. From the results, it seemed that various terrestrial, riparian, and aquatic ecosystem were made in the small detention basin.