• Journal of Ecology and Environment
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• 제36권1호
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• pp.89-94
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• 2013

Diatoms have become an integral part of the UK's freshwater monitoring strategy over the past two decades, mostly in response to increasingly stringent European Union (EU) legislation. The use of diatoms is based on strong correlations between diatom assemblages and environmental variables, and from knowledge of the "expected" (= "reference") state of each river. The nationwide overview of the ecological health of rivers this gives allows those stretches of rivers which fail to meet EU criteria to be identified. This, in turn, allows appropriate remediation measures to be planned. Because diatom assemblages vary in space and time, even within a single water body, effective use of diatoms requires a consistent approach in order to minimise uncertainty. This includes the use of methods which comply with European Standards, a training and accreditation scheme for analysts, and a suite of quality assurance methods. Those aspects of uncertainty that cannot be readily controlled have been quantified and all estimates of ecological status are accompanied by the appropriate "confidence of class" and "risk of misclassification". This, in turn, helps planners prioritise those locations which are most likely to benefit from remediation.

• 한국환경복원기술학회지
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• 제9권6호
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• pp.95-106
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• 2006

Ecopark enables sustainable use of natural resource and can be used as a place for site-based environmental education as well as for recreation. This study investigated the opinion for the development of ecopark and ecological education program of ecopark. Nine hundred and fifteen (918) students, 388 teachers, 341 adults, 200 administrators of district education offices, and 40 administrators of environmental offices participated in this survey with a response rate of 89.7%. Results of this survey indicated the followings are needed to develop ecopark : natural resources and facilities, ecological educational program and its operation, human resource and professional development, and cooperation system with educational and environmental offices. On the basis of these results, the way of improvement was discussed and proposed.

• 생태와환경
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• 제53권1호
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• pp.102-108
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• 2020

본 연구는 4가지 환경요인에 따른 떡갈나무 유식물의 생육 반응 분석과 생태적 지위폭을 측정하였다. 환경요인은 광, 수분, 토성 그리고 유기물 함량이고 각각 4구배로 처리하였다. 광량이 많을수록 잎 무게, 지상부 무게, 지하부 무게 그리고 식물체 무게가 증가하였다. 수분함량처리구와 토성처리구에서 생육 반응은 차이가 없었다. 유기물 함량이 많을수록 지상부 무게가 증가하였지만, 나머지 형질의 생육 반응의 차이는 없었다. 생태적 지위폭은 광요인에서 0.865, 수분요인에서 0.995, 토성요인에서 0.994 그리고 유기물 함량 요인에서 0.988이었다. 생태학적 지위폭은 수분함량 처리구에서 가장 넓었고 광처리구에서 가장 좁았다. 이는 떡갈나무의 생육 반응이 광량의 양이 많을수록 생육이 좋고, 광에 민감함을 의미한다. 따라서 생육 반응과 생태적 지위폭을 결정짓는 것은 광 요인이다.

• 한국환경교육학회지:환경교육
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• 제15권2호
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• pp.30-48
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• 2002

This study is on theoretical foundation for orthodoxy korean style Environmental Education based on oriental ecological thought. The main theme is that various kinds of all the ideas related with ecological thought based on oriental thoughts for EE should be focused into Moderation, the core-concept of oriental confuscian thoughts. The Moderation has not meant just a personal enlightenment, as it has known to general people, it can be developed into social status core-consciousness for regulating the natural resource. So we should focus on this conceptual developing mechanism personal enlightenment into social status for our orthodoxy konean style EE. It can be infered from Taoism, Confuscionism Buddism, especially, Anxiety Consciousness (WOOHWAN) for grand-scale anxiety to public society and universal cosmos. And also I drawed Harbermas-philosophy to provide good means for fortifying this research. His communication theory and restoration of real life for public people communication can be connected to oriental thoughts in the aspect of reciprocative response among the community people. So our orthodoxy korean style EE can be erected on the community-based regionality and their public communication through reciprocative response process. We should try to make this surrounding conditions nature-familiar oriental philosophy has provided from ancient times in the aspect all the traditional thought has been eco-deterministic.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2018년도 학술발표회
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• pp.355-355
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• 2018

Natural hydrology systems, including high flow and low flow events, are important for aquatic ecosystem health and are essential for controlling the structure and function of ecological processes in river ecosystems. Ecosystem responses to flow changes have been studied in a variety of ways, but little attention has been given to how episodic typhoons and atmospheric circulation patterns can change these hydrologic regime-ecological response relationships. In this diagnostic study, we use an empirical approach to investigate the salient features of interactions between atmospheric circulation, climate, and runoff in the five major Korean river basins.

• 환경생물
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• 제32권2호
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• pp.95-101
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• 2014

한반도의 낙엽성 참나무인 졸참나무(Quercus serrata)의 생태적 지위폭이 $CO_2$ 농도와 온도가 상승하였을 때 광, 수분 그리고 영양소 구배에서 어떻게 변화하는지 알아보고자 유리온실에서 대조구와 온난화처리구로 구분하여 재배한 후, 유식물의 20가지 형질을 측정하고 생태적 지위폭을 계산하였다. 그 결과, 생태적 지위폭은 광구배에서 대조구보다 온난화처리구가 넓어졌고, 수분과 영양소 구배에서는 대조구보다 온난화처리구가 좁아졌다. 이것은 지구온난화 진행 시 졸참나무는 광 환경에 대한 내성이 증가되고, 수분과 영양소 환경에 대한 내성이 감소될 것으로 예측할 수 있다. 주성분분석(PCA) 결과, 각 환경 구배에서 요인 1과 요인 2에 의해 대조구와 온난화처리구가 구분되었다. 생태학적 반응은 다양한 형질이 종합적으로 관여하며, 그 중에서 식물의 생산량을 나타내는 형질이 많은 부분 관여하는 것으로 판단된다.

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2017년도 추계학술발표회
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• pp.235-235
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• 2017

• 대한인간공학회지
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• 제29권4호
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• pp.661-665
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• 2010

Current subway station's office employee must perform safety management tasks by monitoring the various safety management systems. But these monitoring systems are limited in effective situational awareness and response to a state of emergency immediately. It is necessary to develop an integrated safety management system display. In this study, we developed subway station safety management system's (CCTV, fire detection & alarm system, screen door control equipment) integrated prototype display with ecological interface design framework and evaluated prototype display interface's usability with GOMS model. The result was that the ecological interface's performance was better than existing safety management system's interface.

• The Korean Journal of Ecology
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• 제16권1호
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• pp.39-50
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• 1993

The geographical variation of the germination response and the seedling growth of the seed populations of hemistepta lyrata bunge distributed in the southern area of korean peninsula (seoul, yongwol, andong, $Ch^{\prime}angwon, \;Sunch^{\prime}on$)was investigated. Five populations were divided into two principal groups according to the phases of their seed germination. The first group consisting of the seoul and yongwol population was 62% and 64%, respectively, in the final germination percentage of 32%, 24% and 28%, respectively, were Andong, $Ch^{\prime}angwon\;and\;Sunch^{\prime}on$ populations. The seed populations of hemistepta lyrata bunge which hardly germination. the germination of seoul and yongwol populations located at the higher latitudes took plase synchronously in early autumn. On the other hand, andong, $Ch^{\prime}angwon\;and\;Sunch^{\prime}on$ populations located at the lower latitudes showed a tendency to germinata asynchronously in late autumn. the speed of the seedling growth of the populations located at the higher latitudes was greater than that of the populations at the lower latitudes. Therefore the geographical variation in the germination response and the seedling growth of the seed populations of hemistepta lyrate bunge appeared to be an important ecological strategy to maintain their existence in the extreme environmental variations.

• Communications for Statistical Applications and Methods
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• 제18권3호
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• pp.367-376
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• 2011

BLS 가중치보정법은 사업체 조사 시 발생한 무응답 및 이상점을 처리하기 위해 사용하는 가중치 보정방법중의 하나이다. 최근의 연구에 의하면 총계 추정에 있어 BLS 무응답 가중치보정법의 결과가 비추정법을 사용한 대체 결과와 일치하는 것으로 알려졌다. 본 논문에서는 이상점과 무응답이 동시에 있는 경우, BLS 무응답 가중치보정법을 비추정 대체법으로 바꾸어 총계를 추정하는 새로운 방법을 제안하였다. 매월 노동 통계 자료를 이용한 모의 실험을 통하여 제안된 방법의 우수성을 확인하였다.