• Title/Summary/Keyword: Ecological assessment

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The Analysis of Temporal and Spatial Variation on the Vegetation Area of the Siwha Tidat Flat (시화 갯벌식생범위의 시-공간적 변이 분석)

  • Jeong, Jong-Chul
    • Journal of Environmental Impact Assessment
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    • v.20 no.3
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    • pp.349-356
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    • 2011
  • This research is aim to analyze of changing landscape and according to phenological cycle from image information of coastal environment obtained by multi-media were analyzed by camera and satellite image. The digital camera and satellite image were used for tidal flat vegetation monitoring during the construction of Sihwa lake. The vegetation type and phenological cycle of Sihwa tidal flat have been changed with the Sihwa lake ecosystem. The environment changes of Sihwa tidal flat area and ecological change were analyzed by field work digital camera images and satellite images. The airborne, UAV and satellite images were classified with the changed elements of coastal ecological environment and tidal flat vegetation monitoring carried out the changed area and shape of vegetation distribution with time series images.

CHALLENGES FOR THE NEW MILLENNIUM FOR STOCK ASSESSMENT SCIENTISTS

  • Sakagawa, Gary T.
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.05a
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    • pp.327-327
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    • 2000
  • In the 1990's several economically important marine fisheries collapsed or showed signs of extreme hardship owing to overcapitalization and excessive fishing pressure on the resources. Public concern was raised and demands voiced for more prudent fishery management practices. The United Nations responded and developed international guidelines, such as the FAO Code of Conduct for Responsible Fishing and the UN Straddling Fish Socks and Highly Migratory Fish Stocks Agreement These guidelines task fishery managers to take prudent steps to ensure the long-term viability of fisheries and fishery resources. Included in the guidelines are two particular demands that will challenge stock assessment scientists in the new millennium. They are application of the precautionary approach and the inclusion of ecological considerations in assessments and management advice. High-lighted in the presentation are examples from the central-western Pacifi skipjack tuna fishery and the eastern Pacific thresher shark fishery where insufficien information is affecting stock assessments. The shortcomings are further linked t the new challenges of applying the precautionary approach, such as reference points, and ecological considerations, such as predator-prey and oceanographic-regime shift.(omitted)

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Analysis on Sustainability Assessment Tools for Overseas Single Detached Houses (해외 단독주택의 지속가능성 평가도구 분석에 관한 연구)

  • Choi, Joon Sung
    • KIEAE Journal
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    • v.11 no.2
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    • pp.45-57
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    • 2011
  • As climate change and environmental degradation become more evident, the public's concern and knowledge on sustainable development requires planners to have regards to social impacts and long term economic viability, as well as environmental impacts. The main objective of this study is to analyze existing sustainability assessment tools for single detached houses. The most widely used oversea tools are selected. From analysis on the existing assessment tools, "Impact Estimator" by Athena Institute, "Bees 4.0" by NIST, "CASBEE for Home" by JSBC, "Envest for Housing" by Energy Saving Trust, "LISA" by Center for Sustainable Technology, "SBTool" by iiSBE (International Initiative for Sustainable Built Environment), it can be seen that the current sustainability assessment programs are in need of much improvement. The selected programs are analyzed on scope of program setting & running, data input & output, assessment categories, and strength & weakness. This study is to supplement the existing sustainability assessment tools for single detached houses, and provide information for the development of web-based program to assist architects or home owners to plan sustainable houses in Korea in the schematic design stage.

Analysis of the Status and Limitation of the Biotope Area Ratio on Strategic Environmental Impact Assessment and Environmental Impact Assessment (전략환경영향평가 및 환경영향평가 사업에서의 생태면적률 적용 현황 및 한계점 분석)

  • Park, Jin-Han;Lee, Dong-Kun;Kim, Hyo-min;Sung, Hyun-Chan;Jeon, Seong-Woo;Choi, Jae-yong;Lee, Chang-Seok;Hwang, Sang-Yeon
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.21 no.1
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    • pp.55-71
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    • 2018
  • To improve the ecological function of urban areas, the guideline for applying the Biotope Area Ratio to the Environmental Impact Assessment (EIA) was developed in 2005 and modified in the July, 2017. This study investigates whether the guideline has been actually practiced in the real world by searching reports including 648 cases of the Strategic Environmental Impact Assessment (SEIA) and 471 cases of the EIA. The results show that the 38% of SEIA and the 43% of EIA include sections about Biotope Area Ratio, and the 15% of SEIA and the 25 % of EIA are satisfied the threshold of the Biotope Area Ratio suggested by the guideline. The statistical analysis results show that this low level of practice was not improved through the modification of the guideline in 2017. This is because the guideline is forcibleness, its explanation is unclear, and stockholders' understanding of it lacks. In addition, lack of tracking management on SEIA and EIA also contributes to the low level of practice of the guideline. To promote the practice, the efforts to legislate and publicize the guideline are required.

Study on Improving Environmental Impact Assessment of Carbon Sink in the Greenhouse Gas Evaluation Criteria for Railway Construction Projects for Carbon Neutrality (탄소 중립을 위한 철도 건설 사업 온실가스 평가항목의 탄소흡수원 분야 환경영향평가 개선 방안 연구)

  • Hwang, Jin-hoo;Namuun, Tuvshinjargal;Won, Joo-hee;Kim, Min-jeong;Park, Da-hye;Jeon, Seong-woo
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.26 no.3
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    • pp.43-55
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    • 2023
  • The railway project is an essential green transportation tool that is considered suitable for the domestic and foreign policy direction of carbon neutrality, but there are some limitations, such as damaging important carbon absorption sources during construction. This study analyzed the environmental impact assessment related to carbon absorption sources of greenhouse gas evaluation items conducted during the railway project, and limitations and implications were derived. The analysis of environmental impact assessment guidelines related to railway projects and carbon absorption sources dealt with prediction and reduction methods related to carbon absorption sources, but guidelines, including environmentally friendly railway construction guidelines, lacked descriptions. Since the greenhouse gas environmental impact assessment, 83 railway project environmental impact assessments have been reviewed, but in some cases, carbon absorption-related predictions have not been implemented, or carbon absorption-related reduction measures have been insufficient. In addition, there were cases where there was a limit to calculating emissions and reduction or where the reduction value was insignificant compared to emissions. In order to supplement the environmental impact assessment in the field of carbon absorption sources related to railway construction projects, alternatives such as quantitative emission and low reduction calculation, review of the no net loss system using the total environmental resource system, and linkage with climate change impact assessment are needed.