• Title, Summary, Keyword: Ecosystem & Environment

Search Result 1,767, Processing Time 0.056 seconds

Vegetation Restoration Plan for a Coastal Area through Ecosystem Conservation Fund Return Project: - focus on the Dalmaji-gil area, Haeundae-Gu, Busan Metropolitan City. - (생태계보전협력금 반환사업을 통한 해안 식생복원계획 - 부산 해운대구 달맞이 고개 일대를 대상으로 -)

  • Yoon, sung-young
    • Journal of Environmental Science International
    • /
    • v.28 no.2
    • /
    • pp.191-201
    • /
    • 2019
  • This study suggested a vegetation restoration plan for a coastal area where the ecosystem conservation fund return project, targeting the whole area of Dalmaji-gil, located in Haeundae, Busan. After distinguishing if it would be a proper site for the operation of the ecosystem conservation fund return project by analyzing the ecological environment, human environment, and the current status of land owners, the target species for vegetation restoration was determined, and the facilities and programs were selected in accordance with the spatial division of the biosphere reserve. The basic direction is as follows. First, is the expansion of green space and the securement of life habitats downtown. Second, is the conservation of core areas by separating the conserved area from the space for use. Third, is the establishment of ecological resting space and the reinforcement of an ecological educational programs. The significance of this study is to suggest a vegetation restoration plan of a coastal area, fully utilizing the existing vegetation of the subject area, by suggesting the land use and flow planning, environmental improvement (vegetation restoration) plan, life habitats establishment plan, planting plan, and hydrologic plan, facilities, maintenance, and monitoring plan based on the basic direction. This study would provide useful basic data for ecosystem conservation and restoration in the Korean Peninsula, surrounded by the ocean on three sides.

A Social Network Analysis of the Ecosystem Transformation Caused by Technological Innovation

  • Cho, Namjae;Oh, SeungHee
    • Journal of Information Technology Applications and Management
    • /
    • v.21 no.4
    • /
    • pp.187-201
    • /
    • 2014
  • As the complexity of business environment increases rapidly the use advanced information technology start to affect not only the business processes of individual companies but also the fundamental nature of business and industrial ecosystem. The changes observed at the level of business and industrial ecosystem encompasses a broad range of transformation. This unit of analysis is not sufficiently dealt with by existing information system research. This research attempted to analyze the changes in business ecosystem caused by digital transformation using Social Network Analysis. We studied structural change of the Korea film industry ecosystem chronologically divided by critical events. The film industry is chosen because it is an industry very sensitive to the changes in technology and has gone through massive transformation during the last three decade by way of using modern information technology.

A Comparison of Floral Difference by the Land Use Type in the Metropolitan Area (대도시 인구밀집지역의 토지이용에 따른 식물상의 차이 및 비교)

  • Lee, Sang-Hwa;Lee, Kyoo-Seock
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.7 no.1
    • /
    • pp.10-18
    • /
    • 2004
  • The urban ecosystem, unlike the natural ecosystem, has been affected by the urban environment, so the existences of normal creatures have been threatened and eventually the stability has declined to consist of those that have adapted to such. Therefore, by creating a list of such organisms, their number of variety can be found out and their ecological distinction can be understood. Because flora is known to be an ecological index reflecting region's effects of human and societal environments, weather, and climates, it is a useful method of finding out the ecological position and distinctiveness of that region. The study site is part of watershed at Yangjae Stream, Kahngnam-ku, Seoul. In this study, the difference of flora in each land use type are investigated by plant identification. The purpose of this study is to evaluate the city's plant surviving environment, and eventually to contribute to the restoration of urban green spaces by finding out the plants which are appropriate for the corresponding environment. After doing the study, it was found that the urban forest is the most stable urban ecosystem while the urban park is seriously disturbed, and ecologically unstable. The urban stream is also disturbed continuously.

Establishment of Priority Forest Areas Based on Hydrological Ecosystem Services in Northern Vietnam (수문학적 생태계 서비스를 고려한 북부베트남의 우선보전산림 설정)

  • Kong, Inhye;Lee, Dongkun
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.17 no.5
    • /
    • pp.29-41
    • /
    • 2014
  • Ecosystem services provide various benefits to human beings, but are considered to be free of cost. To protect ecosystems in an economically sustainable way, several developing countries have adopted a policy known as the Payment for Ecosystem Services (PES) that compensates upstream services with monetary incentives collected from service users. Vietnam is one of the countries that have enacted a nationwide PES policy. However, the policy in Vietnam requires further development in order to evaluate the spatial priority zones based on the quantification of ecosystem services. To obtain a recent and high-quality land cover map, we first classified the land cover in the Da River basin, in northern Vietnam, using Landsat dataset. We then applied a water balance theory and an USLE equation to assess hydrological ecosystem services concerning water supply and sediment retention. Following the assessment, we identified the priority areas for hydrological ecosystem services exclusively for forest environments. We found that the quantity and distribution of services from forests varied, due to the topography, climate, and land cover. According to a quantile distribution, Mt. Phu Luong, Mt. Fansipan, and Hoang Lien National Park were evaluated as high service areas in terms of both water yield and sediment retention. As a result, this assessment method can help construct spatial priority zones concerning ecosystem service distribution, and can also contribute to benefit sharing by indicating which forest and landowners require compensation.

Technical Reviews on Ecosystem Modeling Approach and its Applicability in Ecosystem-Based Coastal Management in Saemangeum Offshore and Geum River Estuary (생태계기반 연안관리를 위한 생태모델 개발방향에 대한 기술적 검토 - 새만금 외해역 및 금강 하구역 사례)

  • Kim, Hae-Cheol;Kim, Yong Hoon;Chang, Won-Keun;Ryu, Jongseong
    • Journal of the Korean Society for Marine Environment & Energy
    • /
    • v.18 no.3
    • /
    • pp.233-244
    • /
    • 2015
  • Marine ecosystem modelling has become a more widely used decision-making tool in coastal ecosystem-based management. However, it is not trivial to develop a well calibrated/validated model with potential applicability and practicality because understanding ecological processes with complexities is a pre-requisite for developing robust ecosystem models and this accompanies a great deal of well coordinated efforts among field-going ecologists, laboratory scientists, modelers, stake-holders and managers. This report aims to provide a brief introduction on two different approaches in marine ecological models: deterministic (mechanistic) and stochastic (statistical) approach. We also included definitions, historical overview of past researches, case studies, and contextual suggestions for coastal management in Korea. A long list of references this report included in this study might be used as an introductory material for those who wish to enter ecosystem modelling field.

Development Necessity of Diatom Indices for the Integrated Assessment of Water Quality and Aquatic Ecosystem of Korean Streams (수질 및 수생태계 평가를 위한 한국형 돌말지수의 개발 필요성)

  • Kim, Ha-Kyung;Ahn, Eun-Seo;Cho, In-Hwan;Kim, Young-Hyo;Hwang, Eun-A;Kim, Yong-Jae;Hwang, Soon-Jin;Lee, Jae-Kwan;Kim, Baik-Ho
    • Korean Journal of Ecology and Environment
    • /
    • v.52 no.1
    • /
    • pp.1-8
    • /
    • 2019
  • River water quality and organisms have a very close relationship with the human living environment and health, so it is very important to ensure and maintain the ecological integrity of the aquatic ecosystem. In that sense, benthic diatoms have relatively little mobility, can explain the effects of long-term exposed pollution sources, and are very suitable indicator organisms for river ecosystem evaluation. Diatom ecologists have been developed various diatom indices to assess water quality and stream ecosystem over the world. However, they so far have insufficient identification of taxa, are strongly regional, and are difficult to apply as they are domestically. Unfortunately, there has not been developed an independent diatom index suitable for the Korean stream. Therefore, management of water quality and aquatic ecosystem suitable for domestic rivers can be made, and development or improvement of comprehensive multivariate diatom index for the integrated assessment of water quality and aquatic ecosystem is urgently needed.

A Review of Ecosystem Service Studies: Concept, Approach and Future Work in Korea

  • Chung, Min Gon;Kang, Hojeong
    • Journal of Ecology and Environment
    • /
    • v.36 no.1
    • /
    • pp.1-9
    • /
    • 2013
  • In South Korea, the conflict between development and conservation policy still exist among government ministries, and conventional development plan often has priority over conservation policy. Establishment of sustainable development and comprehensive management policy employing the results of ecosystem service studies are highly warranted, but researchers in South Korea are still limited and often misuse the concept of ecosystem services. Thus, we aimed to introduce the concept of Ecosystem Service (ES) and related terminologies such as Social-Ecological Systems (SESs), ecosystem function, trade-off, and human well-being in this paper. Additionally, this article reviewed and arranged key approaches in ES studies as follows: 1) field works, 2) mapping ecosystem services, 3) valuing ES, 4) quantifying trade-offs between ES and 5) understanding SESs. Based on those results, we suggest that field works for basic information have the first priority to be conducted among ES studies. Once basic information is sufficiently accumulated, researchers can perform applied ES research with accuracy. Finally, results of ES studies conducted by five approaches allow decision makers to consider both natural system and society simultaneously, and hence the results can be utilized for sustainable development and conservation policy based on ecosystem-based management.

A Method of River Environmental Impact Assessment using LCA (LCA를 적용한 하천환경영향평가 방법)

  • Kim, Sung-Joon;Jin, Ming-Ji;Jeon, Yong-Tae;Shin, Seon-Mi;Choe, Yong-Seung;Won, Chan-Hee
    • Journal of Environmental Impact Assessment
    • /
    • v.21 no.1
    • /
    • pp.93-104
    • /
    • 2012
  • In this research LCA methodology was adapted and analyzed in quantifying estimation of estuarine environment. The analysed objects of estuarine environment were construction methods, facility, and input material into water, and estuarine ecosystem. In this research the function of LCA of estuarine environment was river with the view of controling water, utilizing water, and hydrophilic function. According to the result of research, environmental damage indicator of facility was decreased 346 Pt from 453 Pt at pre-maintenance to 107 pt at post-maintenance. Among raw and subsidiary materials, remicon, stone-netting bag, and pebbles were showing heavy environmental load in the order. Evironmental impact of input material into water system was analyzed from 1,827 Pt environmental load before construction to 1,080 Pt of post-maintenance, and damage indicator was improved at 747 Pt. Water quality was improved from 1,827 Pt (before construction) to 1,080 Pt(after construction), and ecosystem was improved after maintenance. Environmental indicator in ecosystem was analyzed 427 Pt(before construction) to 348 Pt(after construction), and damage indicator of Sumnjingang riverine system was improved as much as 79 Pt. In the conclusion, estuarine environmental monitoring through LCA in the area of facility, input material into water and ecosystem showed that close-to-nature stream was 1,172 Pt better than artificial stream in environmental aspects.

Improvement of Forest Boundary in Landcover Classification Map(Level-II) for Functional Assessment of Ecosystem Services (생태계 서비스 기능평가를 위한 중분류 토지피복지도 산림지역 경계설정 개선 방안)

  • Jeon, Seongwoo;Kim, Jaeuk;Kim, Yuhoon;Jung, Huicheul;Lee, Woo-Kyun;Kim, Joon-Soon
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.18 no.1
    • /
    • pp.127-133
    • /
    • 2015
  • Interests in ecosystem services have increased and a number of attempts to perform a quantitative valuation on them have been undertaken. To classify the ecosystem types landcover classification maps are generally used. However, some forest types on landcover classification maps have a number of errors. The purpose of this study is to verify the forest types on the landcover map by using a variety of field survey data and to suggest an improved method for forest type classifications. Forest types are compared by overlaying the landcover classification map with the 4th forest type map, and then they are verified by using National Forest Inventory, 3rd National Ecosystem Survey and field survey data. Misclassifications of forest types are found on the forest on the forest type map and farm and other grassland on the landcover map. Some errors of forest types occur at Daegu, Busan and Ulsan metropolitan cities and Gangwon province. The results of accuracy in comprehensive classification show that deciduous forest is 76.1%; coniferous forest is 54.0%; and mixed forest is 22.2%. In order to increase the classification accuracy of forest types a number of remote sensing images during various time periods should be used and the survey period of NFI and the National Forest Inventory and National Ecosystem Survey should be consistent. Also, examining areas with wide forest patch should be prioritized during the field survey in order to decrease any errors.

Global Wanning Effect on Marine Environments and Measure Practices against Global Wanning (지구 온난화에 따른 해양환경 변화와 대책)

  • Kim, Do-Hee
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.16 no.4
    • /
    • pp.421-425
    • /
    • 2010
  • It has been mown that the global warming has an effectet on marine ecosystem and marine environments. Then, fisherman's activity and fishing production were decreased by changing of marine plankton composition and increasing of harmful marine organisms such as jellyfish, starfish and green laver bloom. Harmful red tides algae bloom and the deserted sea bottom often occurred due to increasing of sea water temperature and sea level rising in Korea. In this report, the cause and mechanism of the global warming phenomenon and it's effect on marine environment and marine ecosystem were introduced, and measures against global warming were suggested