• 제목/요약/키워드: Assessment Indices

검색결과 679건 처리시간 0.023초

수서곤충을 이용한 원주천 수서생태계 건강도 평가 (Health Assessment of Aquatic Ecosystem for Wonju Stream Using the Composition of Aquatic Insects)

  • 최준길;신현선;오사무 미타무라;김숙정
    • 한국환경생태학회지
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    • 제22권5호
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    • pp.544-550
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    • 2008
  • 본 연구는 2004년 5월부터 2004년 11월까지 총 4회 조사를 실시하였으며, 수서곤충은 과별 생물지수(FBI)와 물리적 서식환경(PHA)을 이용하여 원주천의 건강도를 평가하였다. 원주천 9개 지점을 통해 출현한 수서곤충은 총 8목 37과 62속 92종이었다. 과별생물지수의 경우 지점 1, 2, 3에서 $4.55{\sim}4.82$로 가장 건강한 하천생태계를 유지하고 있는 것으로 확인되었다. 물리적 서식환경과 과별생물지수 간의 상관관계는 지점 2가 각각 100, 4.82의 값으로 가장 좋은 서식환경을 나타내었다. 그러나 지점 7과 9는 45, 6.17과 6.97로 가장 낮은 서식환경을 나타내어 물리적 서식환경의 개선이 필요한 것으로 나타났다. 또한 물리적 서식환경과 과별생물지수는 서로 역의 상관성을 나타내었다.

도시개발 행정계획의 전략환경평가 모델개발 - 광역도시계획에의 사례적용 - (Development of Strategic Environment Assessment Model in Urban Development Plan - In case of Metropolitan Plan -)

  • 최희선;송영일
    • 환경영향평가
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    • 제19권4호
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    • pp.381-396
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    • 2010
  • It is essential to consider strategies, spatial planning, and reflection of sustainability for the creation of sound urban spaces. To this end, there is a need for plans that can secure better sustainability through strategic environmental assessment (SEA) of plans. This study examined the literature and available precedent to develop a SEA model for administrative plans for urban development including metropolitan plans, urban master plans and urban management plans. In the course of development of the model, environmental issues associated with the urban plans were analyzed by classifying them into ten categories, including "spatial planning," "conservation planning," "greenbelt systems," "habitats." and etc. according to their rank. Furthermore, those issues were reflected on the development of environmental evaluation indices for the plans. Overall and detailed environmental indices that can be applied to the administrative plans for urban development including metropolitan plans, urban master plans and urban management plans were devised for five stages: (1) Establishment of development goals and strategy, (2) Analysis of current status and characteristics, (3) Conceptualization of spatial structure, (4) Planning for each department, and (5) Execution and management. Sub plans are more detailed and concrete. Criteria based on the evaluation indices, when performing evaluations on plans based on each environmental assessment index in reference to experts and the literature, were used to forecast their effects, i.e. whether they had a positive, negative, or no effect or relationship, or whether their effects was uncertain. Based on the forecasts, this study then presents means to establish more improvable plans. Furthermore, by synthesis of the effects according to each index and integration of the process, plans were analyzed overall. This study reflects the characteristics of the present time period based on issues in the SEA process and techniques in upper level administrative plans being newly established, and presents them according to the stage of each plan. Furthermore, by forecasting the effect of plans by stage, this study presents proposals for improvement, and in this aspect, can be meaningful in promoting plan improvements through SEA.

하천환경의 생물학적 평가를 위한 간이저서동물지수(SBMI)의 개발 (Development of Simple Benthic Macroinvertebrates Index (SBMI) for Biological Assessment on Stream Environment)

  • 공동수;민정기;노성유
    • 한국물환경학회지
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    • 제34권5호
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    • pp.514-536
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    • 2018
  • GPI (Group Pollution Index) using 29 indicator groups of Korean benthic macroinvertebrates was proposed in 1992, a higher category taxa-level index developed for rapid field assessment of organic water pollution. This study was performed to revise the assessment scheme of GPI based on taxonomic performance and ecological information accumulated since 1992. The original GPI was renamed SBMI (Simple Benthic Macroinvertebrates Index), and SBMI was based on saprobic valency of 26 indicator groups composed of higher category taxa (mainly family ~ phylum) excluding some genus or species-level taxa. SBMI revealed highly significant correlation with concentration of 5-day biochemical oxygen demand ($BOD_5$) (correlation coefficient r = 0.78, n = 569 sites), total suspended solids (r = 0.69), and total phosphorus (r = 0.77). Also, SBMI revealed strong correlation with Shannon-Weaver's species diversity (r = -0.85), Margalef's species richness (r = -0.85), and McNaughton's dominance (r = 0.83). Determination coefficient of SBMI to concentration of water quality items and values of community indices such as species diversity was 3 ~ 8 % and approximately 11 ~ 14 % higher than that of GPI, respectively. Correlation between SBMI and water quality factors or community indices such as species diversity did not reveal much difference compared to that of species-level indices, such as BMI (Benthic Macroinvertebrates Index) and ESB (Ecological Score of Benthic Macroinvertebrates). SMBI is a simple-qualitative index with higher category taxa easily identified, and is applicable for rapid field assessment of water environment impairment.

LCCGIS를 활용한 취약성 평가방법의 개선 (Improvement of Vulnerability Assessment to Climate Change using LCCGIS)

  • 김영수;이승훈
    • 한국기후변화학회지
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    • 제5권2호
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    • pp.165-178
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    • 2014
  • 기후변화에 대처하기 위하여 2015년부터 국가 및 광역지자체와 더불어 기초지자체에서도 기후변화 적응대책을 의무적으로 수립하여야 한다. 적응대책을 수립하기 위해 우선적으로 취약성 분석이 선행되어야 하며, 원활한 취약성 평가를 위하여 취약성 평가도구인 LCCGIS를 개발하고 보급하였다. 현재 대부분의 기초지자체에서는 LCCGIS를 적극적으로 활용하고 있으나, LCCGIS의 경우, 대부분의 평가지표의 값이 동일한 값이 적용되고 있어 평가결과의 편이가 상당하다. 본 연구에서는 LCCGIS를 최대한 활용하여 취약성 평가 결과를 조금이라도 지역적 여건을 반영한 결과로 도출할 수 있는 방법으로, 우선적으로 해당 지자체에서 확보 가능한 읍면동 자료를 확보하고, 다음으로 미확보된 지표에 대해서는 최대한 유사성을 가진 해당기초지자체의 읍면동 자료로 대체하는 방법을 소개하였다. 취약성 평가는 향후 일어날지도 모르는 상황에 어느 정도 취약할 것인지를 평가해야 하기 때문에, 연구자의 주관적인 견해가 포함될 우려가 상당히 많으므로, 최대한 객관적인 지표의 선정, 현재 확보할 수 있는 자료 수준 파악, 지역의 여건에 따라 지표내용의 변경 등에 있어서 객관성을 유지하고자 노력할 필요가 있다. 결론적으로 보완된 취약성평가 결과는 기후변화적응 대책을 수립하기 위한 중요한 선행과제로서, 본 연구의 결과는 향후 LCCGIS를 활용한 취약성 평가 결과의 신뢰성을 제고하고, 지역적 특성이 반영된 기후변화적응 세부시행계획의 수립이 이루어지도록 방향을 설정하는데 기여할 것으로 기대된다.

마늘의 제초제 약해에 대한 구조적, 생화학적, 생리적 계열 식생지수 반응: 지상분광계 및 다중분광카메라를 활용하여 (Response of Structural, Biochemical, and Physiological Vegetation Indices Measured from Field-Spectrometer and Multi-Spectral Camera Under Crop Stress Caused by Herbicide)

  • 류재현;문현동;조재일;이경도;안호용;소규호;나상일
    • 대한원격탐사학회지
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    • 제37권6_1호
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    • pp.1559-1572
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    • 2021
  • 다중분광카메라의 기술 개발로 인해 구조적 특성뿐만 아니라 생화학적, 생리적 특성을 가지는 식생지수를 다양한 공간 규모에서 활용할 수 있게 되었다. 이에 본 연구는 스트레스를 받은 노지작물을 대상으로 지상 초분광계 및 무인기 영상 기반 구조적, 생화학적, 생리적 계열의 식생지수 반응을 평가하였다. 마늘을 대상으로 서로 다른 생육시기에 고농도의 제초제를 살포하여 약해 처리하였으며, 정상 생육에 비해 지상부 건물중이 46.9~84.5% 감소하는 등 큰 피해가 나타났다. 제초제를 살포한 처리구에서 근적외선 분광반사도 값은 꾸준하게 감소하였으며, 구조적 식생지수에서 작물의 약해 피해가 명확하게 표현되었다. 생화학적 식생지수의 경우 일부 지수를 제외하고는 작물의 피해 상태를 표현하였으나 생리적 식생지수는 잎이 고사하고 드러나는 멀칭비닐의 영향으로 약해 피해를 해석하기에 어려움이 있었다. 제초제 살포 후 서로 다른 공간 규모에서 관측된 식생지수의 감소율 차이는 구조적 식생지수의 경우 평균적으로 2.3%로 나타났으며, 정규화 식생지수의 경우 1.3~4.1%의 분포를 보였다. 비록 생리적 식생지수가 작물 스트레스에 민감하다고 알려졌지만, 노지작물의 경우 작물 스트레스 종류와 재배 환경에 따라 적합한 식생지수를 활용하여야 한다는 것, 공간 규모에 따른 오차를 최소화하기 위해서는 정규화 식생지수를 활용해야 한다는 것을 확인하였다.

RAM(일반기능평가기법)을 이용한 내륙 습지 기능 평가 (A Study on the Assessment for the Functions of Inland Wetlands Using RAM(Rapid Assessment Method))

  • 구본학;김귀곤
    • 한국환경복원기술학회지
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    • 제4권3호
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    • pp.38-48
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    • 2001
  • A wetland is an ecosystem which is the most useful and highly-energetic transition area. This study has been carried out to develop the wetland function assessment methods and apply on the natural wetlands (Mul-young-ari wetland in Jeju-island and Bangdong wetland in Taejon Metropolitan city) using RAM (Rapid Assessment Method). The RAM is useful method for assessing the wetland functions in terms of general functions acquired by once or twice onsite surveying. Eight functions of 2-12 variables each are analyzed for assessing the wetland functions. The results are as follows : 1) The conservation values of two wetlands are "High". 2) In Mul-young-ari wetland, such functions as groundwater discharge, floral diversity and wildlife habitat, shoreline/stream bank protection are relatively high, but some functions such as flood/storm water storage, aesthetics and recreation are "Moderate" - "High". 3) In Bangdong wetland, such functions as floral diversity and wildlife habitat, groundwater discharge, flood/storm water storage, aesthetics and recreation are high, and another functions are "Moderate" - "High". The taxonomy of this study stems from assessing functions of inland wetlands using indices of RAM. So It is needed that consequent studies are to be performed with verifying the variables and indices.

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National Database, Evaluation and Assessment of Plant species based on the phytosociological Information

  • Kim, Jong-Won;Lee, Eun-Jin
    • 한국동물학회:학술대회논문집
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    • 한국동물학회 1997년도 제18회 생물과학 심포지움 강연록
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    • pp.42-57
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    • 1997
  • The multicriterion matrix technique (MM-technique) was proposed for a method of monitoring and assessment about vegetation naturalness. Four criteria and 10 subcriteria were selected and two evaluation indices such as VN-value and VN-class were used. The criteria were characterized by syntaxonomical informations of hemeroby concept and potential natural vegetation, hierarchical system between criteria, and ordinal scale of VN-values. VN-values were classified into 11 ordinal levels and condensed to five VN-classes for facilitating practical use. A vegetation map of naturalness described by combination o( two indices was proposed as an alternative resolution of the DGN map. We also discuss the organization of the map content which is a matter of grid size (unit-area). In the case study, a grid size proper to show a full account of real information of actual vegetation is less 250-grid (250 $\times$ 250 $m^2$) in a medium size of city area containing relatively fragmented ecosystems. In conclusion, it was recognized that this new assessment technique was useful and vegetation assessment was accomplished with the smaller grid size in Korea.

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정량적 분석에 의한 전남바다목장의 생태계 기반 어업평가 (A study on the ecosystem-based fisheries assessment by quality analysis in Jeonnam marine ranching ecosystem)

  • 박희원;최광호;장창익;서영일;김희용
    • 수산해양기술연구
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    • 제49권4호
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    • pp.459-468
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    • 2013
  • In the application of the ecosystem-based fisheries assessment Jeonnam marine ranching ecosystem, two fisheries, funnel fishery and trap fishery, were selected as target fisheries. Black seabream, Acanthopagru schlegelii, rock bream, Sebastes inermis, gray mullet, Mugil cephalus, were selected as target species for the funnel fishery, and conger eel, Conger myriaster, was target species for the trap fishery. For assessing indicators of four management objectives, that is the maintenance of sustainability, biodiversity, habitat quality and socio-economic benefits, indicators were selected considering the availability of data, which were 5 indicators for sustainability, 3 indicators for biodiversity, 4 indicators for habitat, 2 indicators for socio-economic benefit. The Objective risk indices for sustainability and biodiversity of two fisheries were estimated at yellow zone, medium risk level. The objective risk indices for habitat and socio-economic benefit were estimated at green zone, safe level. The species risk indices (SRI) were estimated at yellow zone. The fishery risk indices (FRIs) were estimated at 1.143 and 1.400 for funnel net fishery and trap fishery, respectively. Finally the ecosystem risk index estimated at 1.184.

생물지수를 이용한 북한강 수계에서의 생물학적 수질 평가 (biotic Indices as Assessment tools of Water Quality in the Han River System, Korea)

  • 정평림;정영헌;어성준;김재진;최선근
    • The Korean Journal of Ecology
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    • 제21권6호
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    • pp.759-770
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    • 1998
  • biotic indices scoring with the benthic macroinvertebrates were assessed as pollution monitoring tools in the north branch of the Han River system, Korea. We investigated the temporal variability of water quality at unpolluted, moderately polluted and heavily polluted sites using several biotic indices and assessed appropriate biological monitoring indices for lotic systems in Korea. The following biotic and chemical indices were employed in order to compare their applicability to the lotic systems : Trent Biotic Index (TBI), Chandler's Biotic Index-Average Score per Taxon (CBI-ASPT), Modified Biological Monitoring Working Party Score System-Average Score per Taxon (BMWP-ASPT), Hilsenhoff's biotic Index (BI) and Family-level Biotic Index (FBI) models for biotic analyses and National Sanitation foundation's Water Quality Index (NSFWQI) and comprehensive Chemical Pollution Index (Pb/n) for chemical analyses of water quality. Index and score values were compared with each other and with 24 water chemistry parameters. All biotic indices were significantly auto-correlated (p<0.001) and BI and FBI/ROK among them were highly correlated (r=0.84). BI and BMWP-ASPT models were also highly correlated with NSFWQI, while TBI values showed high correlation with the Pb/n. The BI and BMWP-ASPT were highly correlated with the most water chemistry parameters. We conclude that the BI model, which includes indicator species and abundance of taxa, is best suited for the bioassessment of lotic systems in Korea. For rapid field-based assessments, FBI/ROK and BMWP-ASPT models are also appropriate.

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원전격납건물 지진피해평가 프로그램 개발 (Development of a Seismic Damage Assessment Program for NPP Containment Structure)

  • 고현무;신현목;최강룡;정대열;현창헌;조호현;김태훈
    • 한국지진공학회:학술대회논문집
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    • 한국지진공학회 2003년도 춘계 학술발표회논문집
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    • pp.118-125
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    • 2003
  • Seismic damage assessment program for containment structure is developed. The program has been established through the combination of inelastic seismic analysis program and 3-D animation program. Damage indices at finite element level and structural level have been introduced for the seismic damage assessment. The seismic damage assessment program makes it possible to analyze in real-time the actual resistance capacity and damage level of containment structure. It will be expected that the program enables to establish the measures more quickly under the earthquake event.

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