• 제목/요약/키워드: Ecological factors

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하천개수 전·후 하천공간의 생태기능 평가방법에 관한 연구 (A Study on Evaluation of Ecological Function before and after River Improvement)

  • 홍일;김지성;신형섭;김규호
    • 한국수자원학회논문집
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    • 제47권4호
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    • pp.397-409
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    • 2014
  • 본 연구에서는 과거 자연하천에서 개수 후 현재 정비하천으로 변화된 하천공간의 생태기능을 비교 평가할 수 있는 방법을 제안하고 그 적용성을 검토하였다. 생태기능 평가는 하도 중심의 물리구조와 하천공간의 생태연결성으로 구성하였고, 각각 4개와 2개 평가항목을 토대로 평가기준에 따라 정량화 하였다. 평가방법의 적용은 하천개수 전인 1918년과 대규모 하천개수사업이 종료된 현재의 만경강 하천공간에 204개 격자와 7개 하도구간을 설정하고 GIS 분석기능을 활용하여 수행하였다. 그 결과, 물리구조와 생태연결성은 각각 평균 2등급에서 4등급, 2등급에서 3등급으로 감소한 것으로 나타났다. 물리구조의 주된 악화 원인은 직강화와 그에 따른 하천 횡단구조물의 건설에 의한 것으로 파악되었고, 생태연결성 악화는 도로와 철도 등에 의한 선적 단절요인이 토지이용에 의한 면적 단절요인보다 비교적 더 크게 작용한 것으로 확인되었다. 특히, 생태기능이 높은 격자들을 기준으로 하천공간을 살펴볼 때, 1918년의 생태 연결성은 하천을 축으로 분포되어 있었음을 알 수 있으나, 2007년은 제방 축조와 도시화된 지역의 증가로 산포하는 경향을 나타났다.

산림교육 프로그램 효과성 평가를 위한 산림생태감수성 척도 개발 (Development of a Forest Ecological Sensitivity Scale for Evaluating the Effectiveness of Forest Education Programs)

  • 최선혜;하시연
    • 한국산림과학회지
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    • 제111권3호
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    • pp.450-460
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    • 2022
  • 본 연구는 산림교육 프로그램을 평가하고, 국민의 산림생태감수성을 측정하기 위한 문항을 구성하여 신뢰도와 타당도를 검증하고, 척도를 개발하는 데 목적이 있다. 문헌 연구와 전문가 회의를 통해 산림생태감수성의 정의를 내리고 각 문항의 요인을 나누어 106개의 예비문항을 개발하였고, 전문가 평가를 통해 내용타당도와 문항이해도 및 중복성을 평가하여 98문항을 추출하였다. 추출된 문항을 바탕으로 성인 256명에게 예비조사를 진행하였다. 조사 결과를 바탕으로 탐색적 요인분석을 실시하였고, 요인간 중복되는 문항과 요인부하량에 적합하지 않은 문항을 제외하여 총 19문항을 선정하였다. 본 연구는 전국에 있는 성인을 대상으로 진행하였고, 총 557명이 참여하였고, 분석에는 532개의 설문이 사용되었다. 탐색적 및 확인적 요인분석 결과, 산림생태감수성 척도는 10문항, 3개 요인(개인적 단계, 사회적 단계, 일체적 단계)로 구성되었고, 양호한 적합도를 보였다. 본 연구를 통해 개발된 산림생태감수성 문항을 이용하여 산림교육 프로그램의 효과성을 평가하여 산림교육 프로그램의 질적 향상에 기여할 수 있길 기대해본다.

평택-음성간 고속도로의 에코로드 조성을 위한 환경생태계획 (Ecological Planning for the Preparation of an Eco-Road on the Pyungtak-Eumsung Highway)

  • 강현경;민권식;장종수;한봉호
    • 한국조경학회지
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    • 제32권3호
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    • pp.32-42
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    • 2004
  • This study aims at establishing an ecological planning for road construction. which is considered to be a main cause of damage to the natural environment in Korea. This study focuses on the Pyungtak-Eumsung Highway development project. It considers the ecological factors and status of the site and its surrounding area. The study site is a four-way highway with a width of 23.4m and a length of 5.7km that spans from Hyungok-ri, Anseong City, Kyeonggi Province to Jukhyun-ri, Jincheon-gun, Chungbuk Province. The objective of the plan is "the establishment of an eco-road in harmony with nature." The plan is divided into five detailed goals: 1) restoration of river morphology and ecosystem through ecological planning; 2) establishment of wet biotopes; 3) construction of ecological corridors; 4) restoration of damaged forest ecosystems; and 5) ecological restoration of the roadside slopes that are linked with the surrounding forest. A master plan has been developed based on the detailed goals. The master plan involves: 1) establishment of a natural river, wet biotopes, and ecological corridors that facilitate the movement of amphibians, wild fowls, mammalians and fish; 2) development of a planting plan for the visitor center, the tunnel entrance, and soundproof banks; and 3) the presentation of a planting model for restoring roadside slopes that are connected to the surrounding forest. The eco-road plan needs to entail ecological conservation and restoration plans. In addition, a monitoring plan for ecological corridors and habitats should be included in the comprehensive plans, along with the continuous development of environmentally friendly technologies.

근로자의 뇌심혈관계 질환 예방을 위한 중재 연구의 분석적 고찰: 생태학적 모델을 기반으로 (A Systematic Review of Interventions for Workers with Cardiovascular Disease Risk Factors: Using an Ecological Model)

  • 황원주;박윤희;김진아
    • 한국직업건강간호학회지
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    • 제25권1호
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    • pp.41-54
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    • 2016
  • Purpose: The purposes of this study were to review the research trends and to identify developmental direction of studies on community interventions according to the ecological model for workers with cardiovascular diseases (CVD) risk factors. Methods: Electronic databases including PsycINFO, PubMed, EMBASE, CINAHL, and Cochrane Library and the reference lists of articles were searched. All articles were assessed in relation to inclusion and exclusion criteria, resulting in 29 researches being reviewed. Each review was critically appraised by two authors using a guideline of PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analyses). Results: Nowadays, interventions in organizational level, integrated and web-based interventions are increasing to prevent CVD risk factors for workers. Even though the importance of psychosocial aspects to prevent CVD, the only 2 studies included psychosocial factors in the outcome variables. Also, 14% among 29 researches were based on theories. Conclusion: Psychosocial factors such as job stress, depression, and emotional labor could be CVD risk factors. Therefore, interventions including psychosocial aspects are needed to prevent workers' CVD risks more effectively. Theory-based interventions are needed to support interventions' effects and to develop the nursing science.

The distribution and ecological factors of aerial algae inhabiting stoneworks in Korea

  • Song, Mi-Ae;Kim, Ok-Jin;Lee, Ok-Min
    • ALGAE
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    • 제27권4호
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    • pp.283-294
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    • 2012
  • The physico-chemical and environmental factors of stoneworks were examined from March 2009 to October 2010, and aerial algae living on 24 stoneworks in Korea were identified. Fifty aerial algae were found in 24 stoneworks. Of the 50 taxa, 30 taxa were cyanophytes, 16 taxa were bacillariophytes, 3 taxa were chlorophytes, and 1 taxon was a xanthophyte. Nine species, including Aphanocapsa rivularis, which is known to only live in aquatic conditions, inhabited both aquatic and aerial environments. Synechococcus aeruginosus, Scytonema coactile var. thermalis, S. coactile var. minor, Stigonema ocellatum f. ocellatum, and Oscillatoria boryana were newly recorded in Korea. As a result of a correlation analysis between algae and the physico-chemical and ecological environmental factors, the taxa were divided into the bryophyte group, the humidity group, and the dry group. Although the bryophyte group was included within the humidity group, it was separated from the dry group. Taxa in the bryophyte group including Nostoc commune which was distributed in more humid areas than those in the humidity group. However, dry group taxa including Chroococcus pallidus were distributed in lower humidity than that of the two other groups. Correlations among other environmental factors were tested to identify other factors that could substitute for humidity and light intensity. As a result, tree distance, water distance, and plant coverage were replaceable environmental factors.

영암 구림마을의 친환경건축 계획요소 적용 실태에 관한 연구 (A Study on the Application of Environmental-Friendly Design Factors for Gu-Rim Tradition Village in Yeong-Am)

  • 장환;방민;김흥식
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2008년 추계학술발표대회 논문집
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    • pp.249-254
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    • 2008
  • The objective of this study is to interpret a environmental-friendly plan factors of Korean traditional settlement used of existing classification system. The existing classification system framework is six environmental ecological ideas as the adaptation to the adaptation to the availability of land, the eco-space in village, the system of house, the cycling of material and the reasonable energy system, the water resources, prevention of environment pollution. Additional research was undertaken to verify the findings. Through the interpretation, it has been found out that Gu-Rim tradition village has been developed to an environmental ecological rational setting and has the meaningful elements for environmental friendly housing estates.

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북반구의 너도밤나무와 너도밤나무림의 분포에 관하여 (On the Distribution of Beech(Fagus, Fagaceae) and Beech-Dominated Forests in the Northern Hemisphere)

  • Yim, Yang-Jai
    • The Korean Journal of Ecology
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    • 제6권3호
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    • pp.153-166
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    • 1983
  • The distribution of beech species (Fagus) and beech-dominated forests along climatic gradients in the Northern Hemisphere was studied by use of taxonomic and ecological literature. The genus Fagus as a whole occurs over the range of 4.5 to 20.0。C mean annual temperature and 600 to 1000 mm in lower limit, mean annual precipitation. At the higher end of the temperature range, beech occurs in zones with relatively high growing-season precipitation. Edaphically, beech species and beech-dominated forests tend to occur on mesic, moderately fertile sites. Beech-dominated forests occur in a limited portion of the climatic range of the genus with sensitive responses to other environmental factors. The distributional range of beech-dominated forests on a global scale depends more on climatic factors and geological events than on soil conditions or other factors, summarizing the facts obtained by many researchers on beech dominated forests.

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유아의 일상적 스트레스에 영향을 미치는 미시체계 변인 탐색 (An Analysis of Microsystem Variables Affecting Children's Daily Hassles)

  • 박성혜;김광웅
    • 아동학회지
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    • 제24권4호
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    • pp.1-14
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    • 2003
  • The daily hassles of 5-year-old children were explored and analyzed as microsystems in order to discover the relative importance of ecological factors in children's daily hassles. The subjects were 322 children, their mothers and 34 teachers recruited from 5 kindergartens and 15 child-care centers in Seoul and Kyonggido province. Children were interviewed individually with pictures showing certain stressful situations. Questionnaires were administered to mothers and teachers. The findings indicated that the microsystem variables of Kindergartens and child-care centers were the most significant factors explaining children's daily hassles. Therefore, it was suggested that the policies and regulations on child-care facilities be carefully developed and strictly regulated.

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중.소도시 하천의 친환경적 활용 잠재력 평가에 관한 연구 -전남 순천시 하천을 사례로- (A Study on the Evaluation of Pro-environmental Potential of Streams in Sunchon City)

  • 정정채;이상석
    • 한국조경학회지
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    • 제26권1호
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    • pp.96-112
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    • 1998
  • This study aims to evaluate the potential of pro-environmental application(PEP) in streams conceptualized ecological conservation and recreational use to be in harmony with. The main content of research are to clarify the PEP, to establish the evaluation model, and to evaluate 3 streams(Dongchon, Seokhyunchon, Okchon) in Sunchon city. Researchers introduced 12 evaluation items(water quality, water quantity, vegetation-water area, vegetation conservation, streamscape, neighborhood landscape, stream width, optimum area, nearby landuse, facility in stream, distance from user, obstacle to acces) by 5 scales to evaluate the characteristics of natural and artificial factors in stream area and nearby area. Also to decide the weight of items, researchers surveyed the opinion of 22 landscape architects experienced stream-plan through delphi method. Lastly the pro-environmental potential on streams were calculated by the ecological potential and recreational potential indices to be standardized and indicidual sections in streams were divided 5 grades on the basis of PEP. The result of this study are as follows; 1) The evaluation model of PEP was constructed by 4 steps, such as the decision of weight, the measurement of scale, the calculation of potential indices, the gradation of individual sections in streams. 2) The ecological potential were highly influenced by natural factor such as water quality, vegetation conservation, vegetation-water area, but on the other hand the recreational potential were influenced by optimum area, distance from user, water quantity, obstacle to access. 3) The factors such as vegetation conservation, optimum area, nearby landuse, distance from user were function as discernment factors to evaluate relatively ecological and recreational potential. and water quality, water quantity, vegetation -water area, neighborhood landscape were acted as important items to decide PEP.

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Biocultural diversity and traditional ecological knowledge in island regions of Southwestern Korea

  • Hong, Sun-Kee
    • Journal of Ecology and Environment
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    • 제34권2호
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    • pp.137-147
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    • 2011
  • In 2009, United Nations Educational, Scientific and Cultural Organization (UNESCO) recognized the unique outstanding ecosystem biodiversity and distinct ecocultural values of the Shinan Dadohae Biosphere Reserve in the island region. The Dadohae area, which has been sustainably conserved for scores of years, boasts not only a unique ecosystem, but also has residents with a wide range of traditional ecological knowledge. In terms of understanding the soundness of the ecosystem network known as the landscape system, the recent expansion of environmental development has served to heighten the degree of consideration given not only to biodiversity, which has long been used as an indicator to assess ecosystem soundness, but also to assess cultural diversity. Man has used the surrounding landscape and living organisms as his life resources since the beginning. Moreover, whenever necessary, man has developed new species through cultivation. Biodiversity became a foundation that facilitated establishing cultural diversity such as food and housing. Such ecological knowledge has been conveyed not only to adjacent regions, but also at the international level. The recent rapid changes in the Dadohae area island ecosystem caused by the transformation of fishing grounds by such factors as climate change, excess human activities, and marine pollution, is an epoch event in environmental history that shows that the balance between man and nature has become skewed. Furthermore, this issue has moved beyond the biodiversity and landscape diversity level to become an issue that should be addressed at the cultural diversity level. To this end, the time has come to pay close attention to this issue.