• Title/Summary/Keyword: Ecological system

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Current status and characteristics of the Ecological and Natural Map in the Republic of Korea

  • Eui-Jeong Ko;Hyosun Leem;Junghyun Lee;Wooseok Oh
    • Journal of Ecology and Environment
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    • v.48 no.1
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    • pp.8-16
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    • 2024
  • The integration and management of various national ecological assessments are essential for the benefit of the public. In the Republic of Korea, the Ecological and Natural Map (ENM) serves as a comprehensive platform that synthesizes the results of national ecosystem surveys into a unified system interface. To provide the current status and characteristics of our policy, we analyzed the ENMs and related appeals from 2014 to 2022. Following their implementation, the ENM Guidelines underwent nine revisions, with most of the revisions pertaining to appeals. Nine public announcements were made regarding the ENM, resulting in a gradual expansion of the conservation area. The data also showed a consistent increasing trend in appeals. Most of the 1st-grade areas in the ENM regions where appeals were filed have significantly decreased. The larger area or the smaller population density of an administrative distinct, the more appeals were filed. Our study presents information regarding the current status of the ENM system. The analysis of the operational direction and indicator trends across the 16-year period since the establishment of the system provides valuable insights for similar systems.

Development of Decision Support System for Establishment of Ecological Streams (생태하천조성을 위한 의사결정지원시스템 개발)

  • Lee, Jung-Min;Choi, Jong-Soo;Lee, Sang-Hun;Jin, Kyu-Nam;Kim, Mi-Suk
    • Land and Housing Review
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    • v.2 no.3
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    • pp.299-305
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    • 2011
  • Streams and rivers are among the most fascinating and complex ecosystems on Earth. Recently, many plans of ecological streams are developed and performed in several regions. In spite of obtaining of instream water is most important problem to composite an ecological stream, assessment methods for instream water are too various to estimate an optimal result. In this study, we developed decision support system so that decision-maker may can be supported decision making for composite an ecological stream with connecting the satisfaction of residents in stream. Decision support system is composed of hydraulic, water quality, eco-river simulation model and can show optimal instream flow assessment and water quality improvement.

Water Purification and Ecological Restoration Effects of Sustainable Structured Wetland Biotop (SSB) System Established in the Habitat of the Endangered Species -Exemplified by An-teo Reservior Ecological Park in the Habitat of the Gold-spotted Pond Frog - (멸종위기종 서식처에 조성된 생태적 수질정화 비오톱 시스템의 수질정화 및 생태복원 효과 - 금개구리 서식처인 안터 저수지 생태공원 사례를 중심으로 -)

  • Byeon, Chan-Woo
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.13 no.6
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    • pp.145-159
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    • 2010
  • A Sustainable Structured wetland Biotop (SSB) system was planned, designed, and finally constructed, and maintained in the An-teo Reservoir ecological park, which is the habitat of the endangered Gold-spotted Pond Frog. The system purifies polluted water of An-teo Reservoir which flows from up to bottom within the system. Water was sampled once a month at the inlet and at the outlet from December, 2009 to August, 2010. BOD5, SS, T-N and T-P were analyzed. Average influent and effluent BOD5 concentration was 2.9 and 1.0 mg/L, respectively, and BOD5 removal was 67%. SS concentration of influent and effluent averaged 18.1 mg/L and 2.5 mg/L, respectively, and SS abatement amounted to 86%. Average influent and effluent T-N concentration was 0.426 mg/L and 0.147 mg/L, respectively, and T-N retention was 66%. T-P concentration of influent and effluent averaged 0.071 mg/L and 0.022 mg/L, respectively, and T-P removal amounted to 68%. Plant and frog species of the system were monitored during the period. Amphibia and reptiles provided 7 species and 4 families including the Endangered Gold-Spotted Pond Frog (Rana chosenica ) which also lives in the system. Twenty-six plant species were naturally introduced into the system, however, they didn't make up a significant portion of the plant populations compared with the planted species. The endangered plants, Bladderwort (Utricularia vulgaris var. japonica ) and Euryale ferox were observed in An-teo Reservoir as well as in the system.

Ecological Network for Landscape Conservation and Restoration: from an International Perspective (경관의 보전과 복원을 위한 생태네트워크의 국제적 동향)

  • Hong, Sun-Kee
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.7 no.5
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    • pp.12-25
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    • 2004
  • Integration system of conservation ecology, ecosystem management and land planing in landscape scale is major principle strategy for national management system of environmental resource and biodiversity. Current conservation strategy is concerned with not only population and habitat level but also ecosystem and landscape level. In especially, ecological networking to link core areas or major habitat patches is most eminent and emerging issue in European Union (EU) and North America. Moreover, the promotion of national ecological network system in EU is focused on national cooperation to construct ecological corridor for key habitat that distributed in many countries. Integrating landscape ecology into conservation ecology and restoration have important role to stimulate the network system in regional and national level. In this review paper, comprehensive and necessary considerations arisen from the view of landscape ecology were discussed for the present situations of wildlife conservation and management in Korea compared with other countries. Especially, the conservation strategy and policy of biodiversity were addressed in broad sense including habitat protection, legal approaches, and ecological network programs. Finally, a national ecological network system was suggested for environmental policy in Korea in global consideration after the Korean Unification.

Ecological flow calculations and evaluation techniques: Past, present, and future

  • LIU Yang;Wang Fang
    • Proceedings of the Korea Water Resources Association Conference
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    • 2023.05a
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    • pp.28-28
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    • 2023
  • Most countries worldwide are finding it difficult to make decisions regarding the utilization of water resources and the ecological flow protection of rivers because of serious water shortages and global climate warming. To overcome this difficulty, accurate ecological flow processes and protected ecological objectives are required. Since the introduction of the concept, ecological flow calculations have been developed for more than 60 years. This technical development has always been dominated by countries such as the United States, Australia, and the United Kingdom. The technical applications, however, vary substantially worldwide. Some countries, for instance, did not readjust the method because of a lack of understanding of the ecological effect or because they failed to achieve elaborate scheduling. Mostly, readjustments were not made because the users could not make their choices from among numerous methods for ecological flow. This paper presents three research results based on a systematic review of 240 methods with clear connotation boundaries. First, the ecological flow algorithm was developed along with the scientific and technological progress in the river ecosystem theory, ecohydrological relationship, and characterization and simulation of hydrological and hydrodynamic processes. In addition, the basis of the method has evolved from the hydrological process of the ecosystem, hydraulics-habitat conditions, and social development interference to whole ecosystem simulation. Second, 240 methods were classified into 50 sub-categories to evaluate their advantages and disadvantages according to the ecological flow algorithms of hydrology, hydraulics, habitat, and other comprehensive methods. According to this evaluation, 60% of the methods were not suitable for further application, including the method based on the percentage of natural runoff. Furthermore, the applicability of the remaining methods was presented according to the evaluation based on the aspects of allocation of water resources, water conservancy project scheduling, and river ecological evaluation. Third, In the future, most developing countries should strengthen the guarantee of high-standard ecological flow via a coordination mechanism for the ecological flow guarantee established under a sustainable framework or via an ecological protection pattern at the national level according to the national system. Concurrently, a reliable ecological flow demand process should also be established on the basis of detailed investigation and research on the relationship between river habitats, ecological hydrology, and ecological hydraulics. This will ensure that the real-time evaluation of ecological flow forces the water conservancy project scheduling and accurate allocation of water.

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Tourism Attitude of Deagu Citizens toward the Sustainable Ecotourism (지속가능한 생태관광을 위한 대구시민의 관광태도)

  • Cho, Jin-Hee;Kim, Soo-Bong;Jeon, Eun-Jeong
    • Journal of Environmental Science International
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    • v.18 no.2
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    • pp.177-186
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    • 2009
  • The changes in the worldwide paradigm of the sustainable development have started to be applied in the entire industry fields, and they come out as the sustainable tourism in the field of tourism. And the ecotourism has emerged as a practical method to meet the needs of the actual practice and the intellectual system for the sustainable tourism. In the type of tourists based on tourist attitude, 82.3% has the environment-friendly tourist attitude as a potential ecological tourist or an ecological tourist. In addition, there are the potentials of increase in ecological tourists as well as the revitalization of ecological tourism. First, the ecological tourists are mostly the well-educated and married professional workers at 40, housewives, and people earning a high income. Next, the potential ecological tourists are mainly the well-educated and married professional workers at 30, workers in the service industry, and middle-class citizens. Lastly, the general tourists are the students at 20 who are single, earn a low income, and has low level of education. This study presents useful data to the tourist business in terms of the development, operation and management of sustainable ecological tourism.

A Study on The Architectural Plan Access Method for The Integrated Design of The Environmentally Friendly Architecture (친환경 건축의 통합설계를 위한 건축 계획적 접근방법에 관한 연구)

  • Cho, Sung-Hyun;Kim, Chul-Kyu
    • Journal of The Korean Digital Architecture Interior Association
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    • v.10 no.3
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    • pp.79-86
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    • 2010
  • From the research which sees the building which uses a natural control method with ecological architecture, continuity tried to divide the building which uses a physical control method with sustainable architecture. Ecological architecture analyzes the microclimate of the area and applies mining and natural ventilation leads and that the interior environment controls, the condition of the site actively and there is a possibility of seeing. Also sustainable architecture which is possible to lead and recycling and reuse of the resources and energy cyclic process of the construction resources to lead and the interior environment to control. Therefore the case where the facility system and structural system become integrated design organically in natural circulating method is many. Specially the sunshade system and double skin system are combined and structural system of the building and there is a possibility of having the envelope which form is feature. Today the buildings lead and the system integration process where the integral parts are systematic is demanded the interior environment which and an external form and that, they make they are there is a possibility of seeing. the environmental building which hits joins in with natural control method and the structure and facility system are integrated and has the tendency which is developed and there is a possibility of saying that a meaning with the alternative construction will be able to reduce the resources and an energy.

A Study on the Regional Closed School Cases applied Ecological Concept (환경친화적 개념을 적용한 지역 폐교 활용사례 조사연구)

  • Jung, Jin-Ju
    • Journal of the Korean Institute of Educational Facilities
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    • v.13 no.3
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    • pp.37-47
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    • 2006
  • The conservation or practical use of a lot of closed schools which occurred from 1982 all over the country by governmental policy has been becoming important concerns to local resident and community with economical and administrative interest. A lot of examples, sold or rented to public institutions or a person, which have been using by welfare facilities for inhabitants, facilities for education, youth, company, culture and art, and other use, could be found. It could be said that the process of user's participation of these examples is very high, that is, a lot of examples of our surrounding is applied with ecological concept have participated by most users and local residents directly to architectural repair and renewal process, and practical use. In this background, I choose total five examples more than one by Chungbuk, Chungnam, Jeonbuk, Jeonnam district to investigate examples of closed schools applied ecological architectural concept and I researched reconfiguration of site, change of exterior or interior material, application of ecological system, and role as local community.

Application of Landscape Ecology to Watershed Management : How can We Restore Ecological Functions in Fragmented landscape\ulcorner (유역관리에서 경관생태학의 응용 : 절개된 경관의 생태적 기능을 어떻게 회복시킬 수 있을까\ulcorner)

  • Nakamura, Futoshi
    • The Korean Journal of Ecology
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    • v.21 no.4
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    • pp.373-382
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    • 1998
  • This paper describes the ecological structure and function of riparian zone, and their historical changes with land-use. The riparian zone consists of valley floor landform and riparian vegetation. The functions discussed are attenuation of sunlight energy, input of leaves and needles, contribution of woody debris to streams, and retention of flowing material out of transport. These primary functions directly or indirectly influence water and sediment qualities of streams, bars and floodplains, and thereby aquatic biota. Temporal changes in a hydrological system and riparian ecosystem were examined with reference to land-use conversin in order to understand the linkages between these two systems in Toikanbetsu River. The influences of channelization and land-use on discharge of suspended sediment and wetland vegetation was also investigated in Kushiro Marsh. These two examples suggested that the ecological functions of riparian zone have been degraded as flood control and reclamation works have expanded in the past twenty years The author proposes river restoration planning by preserving or creating landscape elements based on the concepts of sustaining physical and ecological linkages.

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A Study on the Ecological Analysis for the Modern Application of Traditional Dwellings - by the Ecological Approach - (전통주거(傳統住居)의 현대적(現代的) 응용(應用)을 위한 생태학적(生態學的) 분석(分析) - 생태학적(生態學的) 접근방법(接近方法)에 의하여 -)

  • Kim, Samneung
    • Journal of the Korean Institute of Rural Architecture
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    • v.1 no.3
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    • pp.53-64
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    • 1999
  • This is designed to find out the relations between traditional dwelling and its ecological concepts and factors in the natural environment. This also reveals how to design the dwelling under the full consideration of eco-system and its application possibility. Now, I have a conclusion that Modern architecture application would be possible if we design buildings under full-consideration of ecological environmental elements, inheriting the characteristics of the typical architecture items through more detailed and further advanced studies in traditional architecture methods.

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