• 한국산림과학회지
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• 제106권4호
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• pp.408-416
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• 2017

본 연구는 국내 천연기념물 은행나무 23개체를 대상으로 8개의 microsatellite 마커를 이용하여 DNA 지문분석을 수행하였다. 그 결과, 평균 대립유전자수는 6.875개, 평균 이형접합도 관찰치와 기대치는 각각 0.711과 0.710로 나타났다. 이러한 수치는 동일한 마커로 일본 및 중국 은행나무에서 분석된 기존 연구 결과와 유사하였다. 분석된 8개 마커의 다형성 정보량(PIC) 값 및 개체식별력(PD)은 각각 0.677과 0.9999로 높은 개체식별 효율을 나타내었다. 실제 유전형을 비교한 결과에서도 모든 천연기념물 은행나무와 추가로 분석된 일반 은행나무 13개체가 모두 식별되었다. 천연기념물 은행나무에서 계산된 PIC 값을 기준으로 상위 3개의 마커(Ging06, Gb60, Gb61)에서 계산된 개체인식력과 개체식별력이 각각 $8.045{\times}10^{-5}$ 및 99.99%로 계산되므로, 이들 3개의 마커가 은행나무 개체식별을 위한 DNA 지문 분석에 우선 적용이 가능할 것이다. 본 연구의 DNA 지문 분석 결과는 천연기념물 은행나무의 관리와 후계목 육성 및 은행나무 선발 개체의 유전적 동일성 검정에 유용한 자료로 활용될 것으로 판단된다.

• 한국환경복원기술학회지
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• 제12권3호
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• pp.116-129
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• 2009

This study is to enhance the provincial leisure plans through various programs and infrastructure facilities and to establish a network of natural leisure areas in Gyeonggi-do. According to the result, first, in terms of analyzing the locations of natural leisure areas by types, the rest of urban parks is formed in the Capital area outside Seoul as centering around the central area. Moreover, with regard to the rest of forest and the rest of natural ecology learning, the area of the detention exceeds the total area of Gyeonggi-do. The rest of valleys and swamps showed a dotted pattern of the detention area while the rest of tideland and fishing village experience indicated a distribution of the detention area along the West Coast as an axis. Second, according to result of analyzing the accessibility of natural leisure areas by types, the rest of valleys and swamps showed the highest accessibility among the natural leisure areas : the rest of natural ecology learning had the medium level of accessibility; the rest of forest indicated the lowest accessibility. Therefore, it is necessary to create more leisure areas concerning the futures demands. In addition, they should be constructed in the places adjacent to the urban district area exhibiting higher usability and accessibility. In the places where there are many natural leisure area with higher utility, management plans should be deliberated as well. Based on the result of analyzing the rest of valleys and swamps and the rest of tideland and fishing village experience, it was found that the natural leisure area should improve the quality of water intensively and hydrophile property and create hydrophilic spaces. The development of natural leisure areas need to be carried out under the principle of environmental protection while considering historic sites and nearby rivers and lakes. Moreover, water leisure programs should be developed actively as well with further utilization of water resources in order to enhance the usability of natural leisure.

• The Journal of Asian Finance, Economics and Business
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• 제9권9호
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• pp.167-179
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• 2022

The study aims to determine the influencing factors and their impact on the management of the forest land used for production allotted to peasant households and proposes solutions to improve its management. Secondary data was calculated until the end of 2019 at state agencies. The primary data was collected through 2 steps. To determine the factors influencing forest land management for production, step one involved a survey of 100 households that were given access to forest land. Step 2 involved a survey of 215 households to determine how factors impacted the Likert scale's five levels. The study also used a multivariate regression model and SPSS24.0 software to determine the impact rates of factor groups. The study indicated 43 factors that belong to 11-factor groups affecting the management of forest land for production. The policy and legal factors group is the most influential, with an impact rate of 12.72%, followed by 10 other factor groups with impact rates ranging from 4.08% to 11.74%. The solutions include improving policies and laws, strengthening the dissemination of policies and laws; encouraging investment, completing cadastral work, intensifying inspection, examination, and sanctioning of administrative violations of land, upgrading the infrastructure system, and ensuring enough human resources to manage forest land.

• 한국환경복원기술학회지
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• 제17권1호
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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.

• Computers and Concrete
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• 제12권6호
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• pp.755-774
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• 2013

Considering the well known environmental issues of cement manufacturing (direct and indirect levels of $CO_2$ emissions), clinker replacement by supplementary cementing materials (SCM) can be a very promising first step in reducing considerably the associated emissions. However, such a reduction is possible up to a particular level of SCM utilization, influenced by the rate of its pozzolanic reaction. In this study a (4-step) structured methodology is proposed in order to be able to further adjust the concrete mix design of a particular SCM, in achieving additional reduction of the associated levels of $CO_2$ emissions and being at the same time accepted from a derived concrete strength and service life point of view. On this note, the aim of this study is twofold. To evaluate the environmental contribution of each concrete component and to provide the best possible mix design configuration, balanced between the principles of sustainability (low environmental cost) and durability (accepted concrete strength and service life ). It is shown that such a balance can be achieved, by utilising SCM by-products in the concrete mix, reducing in this way the fixed environmental emissions without compromising the long-term safety and durability of the structure.

• 한국수정란이식학회:학술대회논문집
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• 한국수정란이식학회 2002년도 국제심포지엄
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• pp.56-62
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• 2002

The International Union for Conservation of Nature and Natural Resources (IUCN) considers the western/lowland bongo Tragelaphus eurycerus eurycerus to be a threatened species, and the eastern/mountain bongo Tragelaphus eurycerus isaaci an endangered species［1］. Although extinction is considered by many biologists to be a natural process during evolution, the exponential growth of the human population has drastically and prematurely reduced the numbers and genetic diversity of many species［2］. Species have evolved to adapt to a specific habitat or environment that meet their survival needs. Alteration or destruction of their habitat results in a species becoming incapable of adapting and hence becoming threatened with extinction. A widespread scientific and public consensus has emerged suggesting that governments should assign high priority to the maintenance of biological diversity via habitat preservation and management far species conservation［3］. Unfortunately, the loss of biological diversity far surpasses the available conservation resources and species are lost forever on a daily basis［4］. Notwithstanding the focus on habitat preservation and wildlife management, conservation biologists have also become increasingly interested in using the technologies of reproductive and developmental biology to help manage or rescue endangered species［5］.

• 한국환경복원기술학회지
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• 제15권1호
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• pp.27-33
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• 2012

This study was performed in the Tropical Plant Resources Research Center of Korea National Arboretum to assess the effects of natural enemy attack on aphid population feeding on tropical plants. We measured the density of leaf-feeding aphids, Myzus persicae and Aphis gossypii, cohabiting with 5 types of tropical plants at intervals of approximately 2 weeks after introducing their natural enemy, Aphidius colemani. The density of aphids cohabiting with 4 types of tropical plants-Sanchezia parvibracteata, Hibiscus rosa-chinensis, Ficus kurzii, and Aloysia triphylla-started decreasing after 2 weeks of observation and was completely in control after 4 weeks of observation; however, the density of aphids cohabiting with the tropical plant, Hamelia patens, increased during 22 weeks of observation but decreased after the $23^{rd}$ week of observation. We suggest that a banker plant is necessary for the maintenance of A. colemani in tropical greenhouses, and monitoring studies on H. patens, which was weakest against the aphids, should be performed. Our results indicate that biological pest management strategies using their natural enemies were formulated for the construction of new tropical greenhouses.

• 광물과 암석
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• 제35권1호
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• pp.75-81
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• 2022

글로벌 광물에너지자원 분야 수요공급에서 중국의 자원조사탐사개발과 자원경제 정책이 한국의 산업 경쟁력과 밀접하므로, 중국의 자원관련 활동을 분석하는 것은 국내외 자원개발 전략수립에 매우 중요한 사항이라고 할 수 있다. 중국은 2020년에 광물자원관련 법제 개정과 표준을 정하면서 광물자원 탐사개발과 매장량 관리의 효율성을 기하고 있다. 중국 자연자원부는 국가광물자원계획(2021~2025년)의 수립을 통해 국가차원의 목표와 전략을 달성하고자 하며, 각 급 지방정부에서도 지역광물자원계획을 수립하여 시행하고 있다. 이를 통해, 지질광물탐사 활동 감독 및 관리가 강화되었고, 지질광물 탐사개발분야 산업의 생산 관리의 안전성이 강화되었다. 중국은 고품질의 지질탐사, 측량 및 지도 작성 지침개발을 통해, 중국의 지질광물탐사개발 수준을 향상시키고 광업 감독관리 체계 강화를 기하고 있다. 중국의 고체광물자원 매장량분류와 석유가스광물자원 매장량분류 등의 광물자원 표준 마련으로 중국내 새로운 매장량 관리 표준체계가 구축되어 과학적인 광물자원 자원량과 매장량의 파악 및 합리적 관리와 이용 등이 개선될 것으로 여겨진다.

• 환경영향평가
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• 제2권1호
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• pp.39-55
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• 1993

The importance of urban and regional natural park increases because of the needs for preserving the natural resources and providing with natural recreation space in nature. This planning of natural park management should be established based on the research of the various natural resources in the park. But for the lack of effective data synthesizing methods and concepts, only some restricted factors for zoning plan are considered even though GIS computer system for large complex simulation is used. Therefore, in this study three ecological zoning models such as Basic Factor Model (BFM), Visual Landscape Model (VLM) and Comprehensive Ecological Model (CEM) are proposed and applied to Byounsan Peninsula Nature Park(BPNP) for comparison with the current natural park zoning. The BFM has three components -elevation, slope and vegetation. The VLM has applied with six components -elevation, slope, vegetation, road type, and the visual distance. Finally the CEM's modelling factors have included all of BFM, VLM components are added with the land use type, nature and historic resource factors. The zoning concept of BPNP was based on "Minimization" focused on the specific factors. But introduced modelling concept is "Optimization" based on the total ecological environment. So the result of the modelling has larger area for preservation and development zoning compared with the current zoning whose characteristics are ambiguous which allows the environmental destruction. The future study issues will be the determination of the weighting factor, component reconsideration based on the ground truth data and the agriculture residential area zoning.

• 자원환경지질
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• 제41권2호
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• pp.253-265
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• 2008

지속가능한 자원관리모형(SRM)구축은 탈물질화 및 환경과 경제의 디커플링을 이루기 위한 핵심적 요소로 여겨지고 있다. 본 연구에서는 세계 각국의 지속가능한 자원관리 정책 및 연구방향을 살펴보고, decoupling factor를 이용하여 국내제조업의 경제활동과 에너지소비간의 디커플링현상을 살펴보았다. 마지막으로 이를 바탕으로 국내 실정에 맞는 SRM모형구축과 전략을 제시하였다. 자원관리 시스템은 수요전망, 물질흐름분석과 가치사슬분석, 시장구조분석 등의 분석과 조사 등을 바탕으로 구축된다. 이러한 분석들을 통해 환경적 문제 해결, 재활용시장관리방안 및 시장의 구조적 문제점 도출, 필요 재활용기술 도출, 1차자원과 2차자원의 최적 공급비율 등의 Hot-spot 도출 및 해결방안모색이 가능하다. 또한 지속가능한 자원 관리시스템과 국가단위, 권역단위의 물질흐름분석을 유기적으로 연계하고, 효과적인 이의 운영을 위해서는 국가차원의 법제화와 뒷받침이 이뤄져야 할 것이다.