• 제목/요약/키워드: Biodiversity offset

검색결과 4건 처리시간 0.016초

국립세종수목원 교목 4종의 탄소 저장량 및 연간 이산화탄소 흡수량 평가 - 소나무, 메타세쿼이아, 칠엽수, 이팝나무를 대상으로 - (Estimation of Carbon Stock and Annual CO2 Uptake of Four Species at the Sejong National Arboretum - Pinus densiflora, Metasequoia glyptostroboides, Aesculus turbinata, Chionanthus retusus -)

  • 김학구;홍용식;임윤경;윤이슬;도기석;정찬형;이지문;노회은;강신구;김찬범
    • 환경영향평가
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    • 제32권1호
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    • pp.41-48
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    • 2023
  • 본 연구는 세종특별시의 주요 도심 녹지인 국립세종수목원을 대상으로 신규 탄소흡수원으로서의 가능성을 확인하기 위해 수행되었다. 흉고직경 5.5cm 이상 소나무 794본과 가로수로 식재된 이팝나무 154본, 메타세쿼이아 216본, 칠엽수 172본 등 총 1,336본의 수목을 대상으로 4월부터 11월까지 현장조사와 지상라이다 측정을 수행하였다. 조사 결과를 바탕으로 산림탄소상쇄제도에서 사용하고 있는 연간 이산화탄소 흡수량 추정식을 사용하여 탄소 저장량 및 연간 이산화탄소 흡수량을 산정하였다. 주요 수목 4종이 가장 많이 분포하는 흉고직경 12cm 직경급의 탄소 저장량을 비교해본 결과, 이팝나무(0.0136tC/본), 소나무(0.0126tC/본), 메타세쿼이아(0.0092tC/본), 칠엽수(0.0076tC/본) 순으로 나타났다. 그리고 20본을 대상으로 지상라이다 측정자료와 비교해 본 현장조사 자료는 수고 10.0cm, 흉고직경은 1.7cm 차이를 보였다(p<0.05). 추후 정확하고 효율적인 측정방법에 대한 연구가 필요할 것으로 보인다. 또한 수목원에 식재된 다른 종의 탄소 저장량 및 연간 이산화탄소 흡수량을 추가로 구축하면 수목원의 탄소흡수 효과를 홍보하고 국가 NDC 달성에 기여할 수 있을 것으로 판단된다. 장기적으로 도시숲 및 정원에 주로 사용되는 수종의 정확한 탄소 저장량 산정을 위해 주로 사용되는 교목이나 관목의 탄소흡수계수개발도 필요할 것으로 사료된다.

환경영향평가 협의 시 대체서식지 조성을 위한 가이드라인 마련 (A Study on the Guidelines for Creating Alternative Habitats through Environmental Impact Assessment)

  • 심윤진;박용수
    • 한국환경복원기술학회지
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    • 제22권5호
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    • pp.69-79
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    • 2019
  • The purpose of this study is to suggest a guideline that can be used as a standard for consultation and review by environmental impact assessment consultation and review practitioner to enhance the practical effectiveness of creating alternative habitats. The consultation stage of environmental impact assessment was significantly divided into 1) preparation of draft environmental impact assessment reports and gathering of consensus thereon, 2) preparation of environmental impact assessment reports and consultation thereon, 3) follow-up survey of environmental impacts(under construction) and 4) follow-up survey of environmental impacts(in operation). And it was suggested that the procedures of creating alternative habitat by each consultation stage were linked in order of 1) planning, 2) designing, 3) construction, and 4) post-monitoring and maintenance. The basic principles were also proposed for each stage of consultation on environmental impact assessment and procedure for the creation of alternate habitats. Then, issues and methods to be reviewed by the consulting agency and review agency of environmental impact assessment were presented in detail. The guideline of this study provides important information not only to environmental impact assessment consultation and review practitioner, but also to developers and environmental impact assessment agents who plan, construct, and manage alternative habitats.

대체서식지 조성 현황 및 개선방안 연구 - 환경영향평가 대상 사업을 중심으로 - (A Study on the Status and Improvement Plan of Alternative Habitats - Based on the Projects Subject to Environmental Impact Assessment -)

  • 심윤진;정규종;어양준;유윤진;박현경;김동환;조영호;윤주덕;우승현;박수곤;장은혜;추연수;박용수
    • 한국환경복원기술학회지
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    • 제21권2호
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    • pp.77-85
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    • 2018
  • The intensive habitats loss of natural organisms as a consequence of anthropogenic activities has lead to the use of alternative habitats for species conservation. We reviewed the current status of alternative habitats and suggest the improvement of alternative habitats. Most of alternative habitats regarded in this study are not following the pre-arranged consultation at environmental impact assessment. These alternative habitats are rendered useless due to the insufficient consideration of ecological characteristics of species and lack of detailed plans. A number of alternative habitats are influenced by disturbance such as environmental pollution and construction. Post-monitoring of alternative habitats are needed to estimate immigration rate of species. Post management is also needed to assess the status of population stability. Overall, low effectiveness of alternative habitats is presented in this study. According to the status survey, methods for improvement of alternative habitats are required such as detailed guidelines, establishment of post-monitoring system, improvement of habitat restoration techniques, and guidelines for management and operation of alternative habitats.

Evaluation of the effects of the river restoration in Hwangji Stream, the upstream reach of the Nakdong River

  • Bong Soon Lim;Jaewon Seol;Chang Seok Lee
    • Journal of Ecology and Environment
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    • 제48권1호
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    • pp.85-95
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    • 2024
  • Background: In Korea, riparian zones and some floodplains have been converted into agricultural fields and urban areas. However, there are essential for maintaining biodiversity, as they are important ecological spaces. There are also very important spaces for humanity, as they perform various ecosystem services in a changing environment including climate change. Due to the importance of rivers, river restoration projects have been promoted for a long time, but their achievement has been insignificant. Development should be pursued by thoroughly evaluating the success of the restoration project. Ecological restoration is to accelerate succession, a process that a disturbed ecosystem recovers itself, with human assistance. Ecological restoration can be a test bed for testing ecological theories in the field. In this respect, ecological restoration should go beyond a 'simple landscaping exercise' and apply ecological models and theories in restoration practice. Results: The cross-section of the restored stream is far from natural rivers due to its steep slope and artificial material. The vegetation profiles of the restored streams did not reflect the flooding regime of the river. The species composition of the vegetation in the restored stream showed a significant difference from that of the reference stream, and was also different from that of an unrestored urban stream. Although species richness was high and the proportion of exotic species was low in the restored stream, the effect was offset by the high proportion of gardening and landscaping plants or obligate terrestrial plants. Conclusions: Based on both the morphological and ecological characteristics of the river, the restoration effect in the restored stream was evaluated to be very low. In order to solve the problems, a systematic adaptive management plan is urgently required. Furthermore, it is necessary to institutionalize the evaluation of restoration effects for the development of river restoration projects in the future.