• 제목/요약/키워드: ecological survey

검색결과 1,188건 처리시간 0.022초

한국의 저서성 대형무척추동물 생태점수 개선 (Revision of Ecological Score of Benthic Macroinvertebrates Community in Korea)

  • 공동수;박영준;전용락
    • 한국물환경학회지
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    • 제34권3호
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    • pp.251-269
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    • 2018
  • In 1997, the environmental score (Q) corresponding the tolerance value of Korean benthic macroinvertebrate species and the related biotic score, the ecological score of benthic macroinvertebrates (ESB) were proposed; ESB was similar to Beck's biotic index or Chandler's biotic score. This study was carried out to revise the Q values of individual species and the assessment scheme of ESB based on the taxonomic performance and ecological information accumulated since then. The original ESB was renamed as TESB (total ESB), and AESB (average ESB) was newly proposed. AESB is calculated by dividing the TESB (for a given station) by the number of species present in the sample. In this study, TESB showed a positively skewed distribution, while AESB showed a negatively skewed distribution. The correlation between TESB and the concentration of $BOD_5$ was a little stronger than that of the original ESB. TESB showed a very strong correlation (correlation coefficient r = 0.98) with Margalef's species richness, of which correlation coefficient was higher than that of AESB (r = 0.85). AESB showed a strong correlation (r = -0.79) with the concentration of $BOD_5$, while TESB showed a weaker correlation (r = -0.67). Applying TESB and AESB together in an assessment of the environment may be comprehensive because the physical and chemical states of the environment can be evaluated together. AESB is less dependent on the sample size, while TESB tends to increase as the sample size increases. In the evaluation of the environment using TESB, it is necessary to standardize the methods on monitoring.

해안간척지의 생태적 환경복원을 위한 식물 선정에 관한 연구 -인천공항 사토장지역을 중심으로- (Plant Species Selection Program for Ecological Restoration of Coastal Reclaimed Land -Focused on the Dumped Soil Area at Inchon Airport-)

  • 배영훈;이동근
    • 한국환경복원기술학회지
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    • 제4권3호
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    • pp.66-74
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    • 2001
  • The main purpose of this thesis is to select the appropriate plants for the ecological restoration of coastal land. The soil and vegetation environment survey of the beach where the halophytes live now was executed for the sake. Firstly, the soil survey was done by the physical and chemical survey of beach soil and dumped soil. The soil is mostly sandy loam and sandy clay loam which has silty much. The beach soil where the salt plants live has more organic matters in the content than dumped soil because of the influx of the dead halophytes, a pioneer plant to this area. Secondly the vegetation survey was executed by the halophytes survey in the beach area in order to select the appropriate plants for ecological restoration. The shows two different areas in the vegetation divided by the salt density of soil. Artemisia fukudo, Juncus haenkei, Carex pumila, Silene armeia, Polyponum aviculare etc live in the less salt density area and it doesnt show collected. Salicornia herbacea, Suaeda asparagoides, Aster tripolium, Limonium tetragonum, Suaeda maritima, Scirus fluvitilis, Phragmtes communis, Suaeda japonica, Zoysia sinica etc halophytes live in the more salt density area and there are a few advent plant but many collected. So the salt density of soil limits the vegetation. The selection of appropriate plants for the ecological restoration programs was designed with 3 different standards considering the salt density of soil in the dumped soil area. The plan selection guidelines of thick salt density due to the salt density of soil, and economical efficiency and maintenance because the area is large. The guidelines of middle salt density area were made considering economical efficiency and maintenance because there are salt as well, and it is effective for the scenery if they have normal ecology but their leaves have good color and the flowers are beautiful. However I suggest beautiful flowery plants for the neutral plan area because this area is the entry point of the airport so the view is very important.

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생태공원조성을 위한 식재설계방법의 개발 -시각적 선호도와 생태적 다양성의 상호관련성을 중심으로- (A Study on the Development of Planting Design Method for Creating an Ecological Park -Focus on a Correlation between Visual Preference and Ecological Diversity-)

  • 김귀곤;조동길;차영두;황기현
    • 한국조경학회지
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    • 제27권5호
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    • pp.12-24
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    • 2000
  • This study seeks to find an approach tool that allows to consider both ecological and visual aspect in developing an ecological space. Main objective of this study is to develop a planting design method in consideration of correlation between high visual preference and ecological diversity. To this end, an integrated method based on visual design principles and landscape ecological principles was developed first. Then study areas of 20 natural areas and 10 urban areas were selected to survey and analyze visual preference and ecological diversity. The result showed that scale is an element that has the greatest impact on visual preference. In areas with high ecological diversity, scale and connectivity had the biggest impact. In order to have a planting design desirable visually and ecologically based on these factors, it may be divided into following three issues.(1) In oder to increase ecological diversity in areas with strong visual preference, a priority should be given to introduce techniques promoting harmony among dominant species of various scales and other species. At the same time, there should be efforts to secure connectivity. (2) To improve visual preferences in areas with high ecological diversity, close-range, medium-range, and distant landscapes should be ensured by aligning colors and connectivity of various scales with other factors. (3) Also, a target area should be developed into a visually preferred and ecologically sound area by supplementing form and interlocking issues and identifying the spirit of the place. This study offers a way to improve visual preference and promote ecological diversity indeveloping ecological parks for the future. In landscape planning and design, it is important to secure various scales and connectivity as high-priority principles.

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친환경건축물인증학교의 생태환경요소에 대한 실태조사 (Survey of actual status of ecological environment elements of certification schools of environment friendly architecture)

  • 송병준;조진일
    • 교육녹색환경연구
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    • 제7권1호
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    • pp.39-55
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    • 2008
  • The purpose of this study is to suggest improvement of certification standards of environment friendly architecture in ecological environment field by surveying and analyzing actual status of actual certification schools of environment friendly architecture per ecological environment elements through extracting ecological environment elements which is possible to analyze in quantity certification standards of environment friendly architecture. As contents of the study, first, certification as an examination on certification system of environment friendly architecture, summary of certification system of environment friendly architecture, ecological environment elements which is possible for quantitative analysis of ecological environment certification standards were extracted. Second, actual status of ecological environment elements per school grade, region, and population increase by collecting actual data of certification schools of environment friendly architecture. Third, using analysis data of ecological environment elements, ecological area ratio of certification schools of environment friendly architecture per weighted values of space types was calculated and the results were analyzed as the follows. (1) In case of preliminary certification out of total objects of investigation schools was average 34.06% but in this case of certification, it was reduced to 33.07%. However, it is difficult to make judgment as actual evidence data since ecological area ratio of actual preliminary certification is data based on drawing planes. Therefore, in case of this certification, elementary schools was investigated at average 33.11%, middle schools 34.81%, and high schools 31.28% and middle school showed the highest relatively. (2) Besides, average composition ratio of ecological area ratio was 63.04% in case of this certification regardless of school grade and region and it was analyzed that about 70% of ecological area ratio is composed of the natural based green area including pure natural based green land and 6.89% of ecological learning institute.

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산림녹지의 계획 및 관리를 위한 자연생태적 기능 평가 (An Evaluation of Natural-Ecological Function for Planning and Management on Forest)

  • 이우성
    • 한국조경학회지
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    • 제39권5호
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    • pp.1-11
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    • 2011
  • 산림녹지의 기능평가에 대한 많은 연구들이 도시민의 이용적 관점에 치중되어 있으며, 자연생태학적 관점에서 종합적인 기능을 평가한 사례는 미흡한 실정이다. 이에 본 연구는 산림녹지에 대한 지속적인 계획 및 관리를 위한 기초 연구로서 산림녹지의 자연생태적 기능에 대한 평가 지표 선정 및 적용을 목표로 하고 있다. 우선, 국 내외 56개 문헌 조사를 통해 최초 35개 지표를 선정되었고, 1차 설문에 의해 12개의 자연생태적 지표가 선택되었으며, 2차 설문에 따른 MCB분석에 의해 녹지면적, 녹지연결성 등 7개 지표가 최종적으로 결정되었다. 또한, 3차 설문에 따른 AHP분석에 의해 7개 지표에 대한 가중치를 설정하여 기능 평가를 기초 작업을 완료하였다. AHP분석 결과에서는 자연성 항목이 0.189로 가장 높게 나타났으며, 반면 식생활력도가 0.063으로 가장 낮게 평가되었다. 사례지 적용을 위해 대구광역시를 대상지로 설정하여 산림녹지에 대한 자연생태적 기능을 평가한 결과, 앞산과 청룡산, 비슬산의 정상부를 따라 85점 이상의 높은 점수가 나타나 자연생태적 기능이 우수한 지역으로 평가되었다. 반면, 와룡산과 마천산의 서쪽지역, 달성군의 대니산 일대지역에서 50점미만의 낮은 점수가 나타나 지속적인 관리가 필요한 지역으로 평가되었다. 이상의 평가 지표 및 결과들은 향후 도시계획, 환경계획을 수행함에 있어 보전 및 관리를 위한 기초 자료로 활용될 수 있을 것으로 판단된다.

생태적 특성에 따른 산림녹지의 관리방안 -부천시의 사례- (Managemtn Devices of Urban Forest in Accordance with Ecological Characteristics in the Case of Buncheon City)

  • 한봉호;이경재
    • 한국조경학회지
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    • 제29권1호
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    • pp.51-66
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    • 2001
  • The purpose of this study is to suggest the ecological management based on ecological characteristics of urban forest in Bucheon city. The actual vegetation area in the survey sites(7,426,587$m^2$) consisted of Robinuia pseudoacacia forest(61.6%; 5,574,168 $m^2$), Pinus rigida forest(6.1%), Quercus mongolica community(3.2%), Q.spp.community(2.9%), etc. According to the importance value of artificial planting forest, 58(/300$m^2$) survey plots were divided into 6 groups; 1) R. pseudoacacia forest, 2) R. pseudoacacia-Q.serrata community, 3) R. pseudoacacia-Q.mongolica community, 4) P.rigide forest, 5) P.rigida-Q.serrata community, 6) P.rigida-Q. mongolica community. As the result, the artificial planting forest was expected to the proceeded to Q. serrata community and Q.mongolica community. The ecological succesion stage in the survey sites (7,426,587$m^2$) was divided into 5 states based on actual vegetation, succession trend of artificial planting forest in Bucheon; 1) Stage of impossible succession(4.7%, 2)Stage of inducible succession(78.7%), 3) Stage of progressive succession(2.7%), 4)Sage of last succession(1.4%), 5)Stage of native plant forest(12.5%). The ecological management of urban forest was suggested as the management method for succession promotion, according to density controlling and native species planting in Bucheon. Individual numbers of R. pseudoacacia might be reduced to 6~8 individuals/300$m^2$ at canopy, 9~21 individuals/300$m^2$ at under-story by selective cutting in order to keep 63~70% of total basal area at R. pseudoacacia forest. Individual numbers of P.rigida might be reduced to 8~9 individuals/300$m^2$ at canopy, 27~30individuals/300$m^2$ at under-story by selective cutting in order to keep 68~75% of total basal area at P. rigida forest. 24 species that were selective by constancy analysis were chosen as the ecological appropriate species. Since, this studyis discussing the ares of urban forest and botanical ecology, it is suggested that a study on the relations between of environmental factors such as soil, climate, and vegetation will be performed in the future.

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생태교육을 고려한 영유아보육시설의 외부공간계획에 관한 연구 (A Study on the Outdoor Space of Child Care Facility for Ecological Education)

  • 이지수;남해경
    • 한국농촌건축학회논문집
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    • 제22권1호
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    • pp.21-30
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    • 2020
  • It is a trend to pursue the reinforcement of child-centered, play-oriented ecological education programs that support children's development. Most of these nature friendly and eco education is done in the outdoor space. So outdoor activities in child care facilities are essential. The purpose of this study was to analyze the actual condition of the outdoor space for ecological child education in the child care center. Therefore, in order to provide the basic data for the direction of the improvement and to grasp the current situation and problems, the survey and analysis of the external space composition and utilization status in the child care facilities for nature-friendly ecological child care education has been done. As a result, the half of the cases did not reserve even the minimum size of outdoor space and fall short of the standards of outdoor space quality as accessibility, complexity, articulation and nature friendliness for ecological education. Therefore, in order to establish an ecological education environment, it is necessary to build facilities in natural green or suburban areas. In addition, they need to use the natural environment such as parks, open spaces, and forests.

GIS와 RS를 이용한 생태지도 작성기법에 관한 기초연구 (A base study of an Ecological Mapping technique by using GIS and Remote Sensing)

  • 이기철;이원화;윤해순;남춘희;김구연;김승환;서상현
    • 한국지리정보학회지
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    • 제7권3호
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    • pp.57-69
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    • 2004
  • 본 연구는 낙동강 하구 일대의 생태계 변화와 생태 관련자료를 GIS DB로 구축하고 생태지도를 작성하였다. 생태지도 작성을 위해 1984년 11월 21일, 1997년 5월 17일에 촬영된 공간해상도 30m의 Landsat TM 위성영상과 국립지리원에서 발행된 1:25,000 수치지형도, 부산시에서 조사한 생물현황 자료를 바탕으로 DB를 구축하였다. 생태지도를 작성하기 위해, 첫째, 낙동강 하구 생태계 조사 보고서와 현재까지 진행된 생태지도에 대한 문헌 연구, 둘째, 시계열적 토지피복분류도 제작, 셋째, 동 식물상, 수질 등 생태계 항목별 DB 구축과 3단계 방식에 의한 생태계 평가, 최종적으로는 이러한 분석 결과를 바탕으로 생태계 관리를 위한 생태지도를 작성하였다.

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사회생태학적 모형에 기반한 한국인 위암검진 수검의 관련 요인 (Factors Associated with Gastric Cancer Screening of Koreans Based on a Socio-ecological Model)

  • 배상수;조희숙;김동현;최용준;이훈재;이태진;이혜진
    • Journal of Preventive Medicine and Public Health
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    • 제41권2호
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    • pp.100-106
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    • 2008
  • Objectives : We measured behavioral factors associated with Koreans receiving gastric cancer screening based on a socio-ecological model, in part to develop strategies to improve cancer screening rates. Methods : A telephone survey was conducted with 2,576 people chosen through stratified random sampling from April 1 - May 31, 2004. Collected information included gastric cancer screening, socio-demographic factors, and socio-ecological factors at intrapersonal, interpersonal, community, and public policy levels. Results : Among 985 survey respondents(380 men and 605 women), 402 had received gastric cancer screening. Logistic analysis was performed to compare those screened and unscreened. 'Age' was the only demographic factor that showed a statistically significant association with getting screening. People in their fifties (OR=1.731, 95% CI=1.190-2.520) and sixties (OR=2.098, 95% CI=1.301-3.385) showed a higher likelihood of getting screened, compared to those in the forties. 'Accessibility to a medical institution' was a significant factor related to having gastric cancer screening at the intrapersonal level. At the interpersonal level, recommendations by family members to be screened and a family practice of routine cancer screening were significantly related. People with frequent education about cancer screening or with stronger social feelings that cancer screening is necessary also demonstrated significantly higher tendencies to be screened. Conclusions : In conclusion, a socio-ecological model seems appropriate for explaining gastric cancer screening behavior and associated factors. Health planners should develop integrated strategies to improve cancer screening rates based on socio-ecological factors, especially at the interpersonal and community levels.

Contribution of Ecological Surveys to Coastal Conservation: A Case in Soft Shore Study

  • Tai, K. K;Cheung, S.-G;Shin, P.-K.-S.
    • The Korean Journal of Ecology
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    • 제27권3호
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    • pp.127-131
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    • 2004
  • Soft shores are particularly vulnerable to human exploitation; however, they exhibit a variety of habitats which provide refuge for a diversity of flora and fauna. This study describes a survey of 13 soft shores in Hong Kong with information on species diversity, sediment characteristics, shore extent, pollution threat, degree of naturalness, linkage with other ecological habitats, and degree of social/economic importance. Data collected were subjected to multivariate statistical analyses, so as to identify shores that have significant ecological status and conservation value for management purposes.