• 제목/요약/키워드: ecological indicator

검색결과 275건 처리시간 0.031초

Physicochemical tolerance ranges and ecological characteristics in two different populations of Carassius auratus and Cyprinus carpio

  • Kang, Seung Gu;Choi, Ji-Woong;An, Kwang-Guk
    • Journal of Ecology and Environment
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    • 제38권2호
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    • pp.195-211
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    • 2015
  • The objectives of this research were to determine mean and maximum tolerance ranges of Carassius auratus ($C_a$) and Cyprinus carpio ($C_c$) populations on various physico-chemical parameters and ecological indicator metrics. Little is known about chemical tolerance ranges of the two species, even though these species are widely distributed species in aquatic ecosystems. Maximum tolerance ranges of $C_a$-population to total nitrogen (TN) and total phosphorus (TP) were $20.3mgL^{-1}$ and $2.0mgL^{-1}$, respectively. Optimal ranges of TN and TP in the $C_a$-population were $1.7-5.0mgL^{-1}$ and $0.06-0.30mgL^{-1}$, respectively. Such nutrient regimes of the $C_a$-population were evaluated as hypereutrophy, indicating high tolerance limits. The $C_c$-population had similar ecological characteristics to $C_a$-population, but the mean tolerance ranges of TN, TP, BOD, and COD were significantly (p < 0.05) greater than the $C_a$-population. Ecological patterns of trophic composition and tolerance guilds in the $C_a$-population were similar to those of the $C_c$-population. The model value of Index of Biological Integrity (IBI) of the habitat where C. auratus and C. carpio co-occurred averaged $15.0{\pm}4.3$ and $12.9{\pm}3.6$, respectively. Based on the modified criteria of the United States Environmental Protection Agency (Klemm et al. 1993), it indicated poor ecological health of both species. These results suggest that both species are highly tolerant to chemical and physical habitat conditions of waterbodies, and that the chemical tolerance range of $C_c$-population was higher than $C_a$-population.

사찰림의 생태문화적 평가지표에 관한 연구 - 조계산 송광사를 중심으로 - (A Study on the Eco-Cultural Assessment Indicator for Buddhist Temple Forest - Focused on Mt. Jogye Songgwang-sa Temple -)

  • 장영환;구본학
    • 한국전통조경학회지
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    • 제37권2호
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    • pp.74-88
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    • 2019
  • 본 연구는 우리나라 사찰림의 생태문화적 가치를 평가하는 평가지표를 개발하고, 개발된 사찰림의 평가지표를 삼보사찰의 한 곳인 송광사(승보사찰)에 적용하였다. 브레인스토밍(숲치유 전문가 2인, 불교계 산림전문가 스님 1인, 산림1인, 연구자 포함 6인)을 통하여 문헌연구와 평가지표 초안을 도출하였고, 이후 전문가그룹(1차:32명, 2차:30명) 심층인터뷰(FGI)를 5점 리커트 설문조사방법으로 도출한 최종평가지표 4개 영역 20개 항목을 기초로 실행한 연구 결과는 다음과 같다. 사찰림의 생태문화적 평가지표에 대해 4개 영역 20개 평가항목으로 각각 5점으로 하였으며 역사문화적 가치는 5개 항목으로 총 25점을, 생태적 가치는 5개 항목으로 총 25점, 휴양 관광적 가치는 6개 항목 총 30점, 교육 이용적 가치는4개 항목 총 20점으로 각각 배점하여 총점을 100점으로 하였다. 개발된 평가지표를 연구대상지인 조계산 송광사를 대상으로 적용한 결과, 사찰림의 역사 문화적 가치가 25점 만점에 23점, 생태적 가치는 25점 만점에 21점, 휴양 관광적 가치는 30점 만점에 22점, 교육 이용적 가치는 20점 만점에 16점을 차지하여 총 82점의 결과치가 도출되었다. 이번 연구에 대한 의미는 다음과 같다. 첫째, 최초로 사찰림의 생태문화적 지표를 개발했다는 것에 의미를 가지고, 사찰림의 생태문화적가치에 대한 활용자료가 될 수 있음에 의미를 가진다. 둘째, 사찰림의 생태문화적 평가지표를 가지고 송광사 사찰림을 평가한 결과, 사찰림의 휴양 관광적 가치와 교육 이용적 가치가 매우 낮았다. 이러한 이유에서 사찰림을 국내 최고의 고객으로 인정하는 산림청과 환경부, 문화재청 등은 사찰림의 관광, 휴양, 교육, 이용을 위한 지원을 해야 한다고 할 수 있다. 셋째, 사찰림의 생태문화적 가치에 대한 우수성에 대해 국가적 차원에서 연구하여 사찰림만이 가지는 템플스테이와 치유를 접목한 가칭 "사찰림에서의 치유"와 같은 국가브랜드를 만들어 세계적인 관광산업이 되기를 바란다. 넷째, 사찰림에 대한 법적정의가 없는 현 상황에서 사찰림에 대한 법적정의의 필요성에 대하여 법적정의를 제안하였다. 이러한 사찰림의 정의가 법률적으로 마련되면 사찰림의 생태문화적 가치에 대한 보호 및 활용적 측면에서 국가기관에 전담부서를 조직하고 더 나아가 사찰림을 세계자연문화유산으로도 등재하는데 기초가 될 것으로 판단된다. 다섯째, 이번 연구의 결과로 나온 사찰림에 대한 생태문화적 평가지표를 바탕으로 유네스코 세계문화유산으로 등재된 "산사, 한국의 산지 승원"에 적용해서 각 사찰마다의 특징을 도출하여 사찰의 관리 또는 활용에 기초자료가 될 것이다.

하천복원사업 평가기준의 과제 (The Stream Restoration Program Evaluation Issue)

  • 최미희
    • 환경영향평가
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    • 제15권1호
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    • pp.13-22
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    • 2006
  • The Korean government adopted the integrated stream water management policy recently with growing perception that natural disasters and pollution in Korea have been due not only to such human factors as urbanization and industrialization, but also to the policy of functionally separated management of irrigation, flood control and ecological management. Contrary to its good intention, research result shows that it is not realistic to expect that this new integrated policy in Korea will work well. In order to be an effective policy and program evaluation, this paper suggests that evaluation indicator on related programs and projects should be made through bottom-up process. For example, environmental benefit should be taken into account rather than just economic benefit, and cultural and social characteristics in the project region should be also considered seriously.

람사르협약의 습지보호지역으로 지정된 전북 고창 운곡습지의 곤충상에 관한 연구 (Insect Fauna of Ungok Wetland in Gochang, Jeonbuk, Korea, Designated as a Wetland Protection Area at Ramsar Convention)

  • 김동언;김종명
    • 한국환경과학회지
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    • 제22권9호
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    • pp.1141-1152
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    • 2013
  • Insect fauna were surveyed in 2011 at Ungok wetland, Obeygol, located in Gochang, Jeonbuk, Korea. In total, 149 species belonging to 11 orders and 57 families were surveyed. Among them, Lepidopterans composed 23.5% (35 species) of the total insect numbers surveyed, comprising the most abundant group, and followed by Coleoptera, Hemiptera, and Odonata with a composition of 22.1% (33 species), 17.4% (26 species), and 10.1% (15 species), respectively. Bothrogonia japonica Ishihara was the most dominant species, and followed by Gastrophysa atrocyanea Motschulsky and Celastrina argiolus (Linnaeus). Phytophagous insects accounted for 60 percent of the total species. Dominance index was the highest in spring by 0.21. Diversity, richness, and evenness indices were the highest in summer by 4.07, 11.84 and 0.96, respectively. In the study area, the legally-protect species were grouped into five groups; 9 export-restricted species, 17 endemic species, 28 indicator species, 1 climate-sensitive biological indicator and 3 southern characteristic species. Additionally, twenty forest insect pest species were surveyed, belonging to 5 orders and 15 families. Therefore, it is required to conduct long-term monitoring and appropriate management based on the ecological characteristic of the habitats to continuously conserve and maintain of wetland.

농약(農藥) 환경(環境) 안전성(安全性) 평가(評價)의 국제적(國際的)인 조화(調和) (International Harmonisation of Pesticide Environmental Safety Assessments)

  • 디 라일리;제이 다이슨
    • 한국잡초학회지
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    • 제17권1호
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    • pp.73-79
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    • 1997
  • Governments and industry have a growing interest in the harmonization of environmental test methods and risk assessment procedures. OECD are currently producing a set of harmonised test guidelines for studying the environmental fate and ecological effects of pesticides. FAO has published an environmental risk assessment procedure. This procedure, which is similar to those used in US and Europe, is based on calculating the ratio of the toxicity of a pesticide to indicator organisms to their level of exposure to the pesticide. The exposure depends on both the concentration of the pesticide and its bioavailability. Ratios which indicate a pesticide will not produce a harmful effect have been established using ecological field studies. Examples are presented for assessing the risk to aquatic ecosystems, earthworms and honeybees. Long-term field studies(up to 20 years) have also shown that pesticides can be used indefinitely without harming soil fertility. Herbicides can be used to avoid the ecologically damaging effects of using soil cultivations excessively for weed control.

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Fish Community Structure in the Pyeongchanggang River

  • Choi, Jun-Kil
    • Animal Systematics, Evolution and Diversity
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    • 제27권2호
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    • pp.151-158
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    • 2011
  • Fish community structure in the Pyeongchanggang River was investigated from April to November 2009. About 900 individuals representing 24 species from eight families at six sites in the Pyeongchanggang River were collected. It was similar to the 2001's survey and it was less than 2006's survey. The Korean endemic species, Zacco koreanus was the most abundant, whereas subdominant species were native species, such as Pungtungia herzi, Zacco platypus, Rhynchocypris kumgangensis and Rhynchocypris oxycephalus. Three endangered species were collected at the sampling area, Acheilognathus signifier (relative abundance [RA] 0.9%), Pseudopungtungia tenuicorpa (RA 1.4%), and Cottus koreanus (RA 3.6%). One natural monument species, Hemibarbus mylodon, was included. According to the analysis of ecological indicator characteristics, the relative proportion of tolerant species was 6.3% (57 individuals), whereas the proportion of sensitive species was 65.9% (593 individuals). Species evenness, richness and diversity indices decreased gradually through the month from April to November during the study. Community indices in Pyeongchanggang River showed a high evenness index (J'>0.6), a low level of species richness (R<3.5) and a medium level of diversity (1.5

농촌지역에서의 생물서식공간 조성기술의 개발(1) -잠자리 서식환경 조성을 중심으로- (Development of Ecotechnology for the Biotope creation in Korean Rural Area -With a Special Reference to Dragonfly Biotope-)

  • 구진혁;심우경
    • 한국조경학회지
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    • 제25권1호
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    • pp.100-111
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    • 1997
  • Owing to the urbanization, the industrialization and joining to WTo, there are lots of fallow and abandoned farmlands in Korea. Those results have occurred inefficient land use and destruction of agricultural ecosystem with the secondary succession and invasion of alien weeds. Using these fallow and abandoned farmlands, Korean government tries to create the ecological parks for the nature conservation, amenity, education and research, etc. For these purposes, materials on the ecological park construction were gathered from abroad such as England, Germany, Switzerland and Japan and also field trips to those countries were executed in April,1996. Accordingly, the goal for the ecological parks could be set suitably to Korean situation as of Japanese styles which are characterized by man-made biotopes. For a case study, dragonfly was selected as an indicator of the rehabilitation of water-side ecosystem, arid a site was selected for the dragonfly biotope under the criteria of selection to the Experimental Farm of Korea University including near abandoned farmlands (Dogok-ri, Wabu-eup, Namyangju city Kyunggi-do). Natural and cultural factors of this site were inventoried and analyzed, and then with the results dragonfly biotope was planned to the site with the detailed ecotechnology.

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서로 다른 서식지에서 섬참새의 외부형태 (Body Size of Russet Sparrow (Passer rutilans) in Two Different habitats)

  • 채희영
    • The Korean Journal of Ecology
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    • 제21권4호
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    • pp.401-403
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    • 1998
  • Body size of the Russet Sparrow (Passer rutilans) was investigated during the breeding seasons of 1994 to 1996, in south-eastern Hokkaido, Japan. Both male and female arrived slightly earlier in isolated forests than in shelter belts during the study. Wing lengths of males and females were significantly longer in isolated forests than those in shelter belts, but the other body size characteristics were not differ significantly. The results indicate habitat selection of the birds depended on their body constructions, in which wing length as an indicator, body size may be an important factor. Large-sized birds select the better quality habitat than birds of small size.

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국내 임업분야 공적개발원조(ODA)사업과 지속가능발전목표(SDGs)와의 연관성 분석 (Analysis of Linkage between Official Development Assistance (ODA) of Forestry Sector and Sustainable Development Goals (SDGs) in South Korea)

  • 김나희;문주연;송철호;허성봉;손요환;이우균
    • 한국산림과학회지
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    • 제107권1호
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    • pp.96-107
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    • 2018
  • 본 연구에서는 국내 산림부문의 공적개발원조(Official Development Assistance; ODA) 사업과 국제연합(United Nations; UN)의 지속가능발전목표(Sustainable Development Goals; SDGs) 간의 연관성을 분석하고, SDGs 달성 측면에서 ODA사업의 방향성을 제시하였다. 우선 한국수출입은행 대외경제협력기금(Economic Development Cooperation Fund; EDCF) 통계조회시스템에서 국내 임업분야 ODA사업 자료를 분석하였다. 분석결과에 따르면, 산림부문 ODA사업은 임업 개발 분야와 임업 정책 및 행정관리 분야에서 활발하게 이루어지고 있었으며, 두 분야에서도 산림청과 한국국제협력단(Korea International Cooperation Agency: KOICA)에서 가장 많은 사업을 시행하고 있었다. 이와 같은 결과를 통해 선정된 국내 임업분야 ODA사업의 각 사업별 목표와 내용을 바탕으로 기존 산림부문 ODA사업 항목인 기술개발, 역량강화, 인프라 구축, 조림으로 항목을 분류하였다. 분류된 항목별 ODA 활동내용과 SDGs에서 강조하는 국가별 이행평가를 위해 국내에서 활용 가능한 산림부문 목표 및 성과지표를 포함하고 있는 2016년 산림청 성과관리 기본계획 성과지표와의 연관성을 분석하였다. 분석된 2016년 산림청 성과관리 기본계획 성과지표와 이와 연관되는 SDGs 세부목표 및 지표를 파악하였으며, 최종적으로 SDGs 목표를 파악하였다. 그 결과 국내 임업분야 ODA사업은 SDGs 목표 1(빈곤퇴치), 목표 2(기아해소), 목표 6(물과 위생), 목표 13(기후변화 대응), 목표 15(육상생태계), 목표 17(파트너십)과 연관되었다. 본 연구는 SDGs가 출범함에 따라 국내 임업분야 ODA사업을 검토하고, 이를 2016년 산림청 성과관리 기본계획과 SDGs와의 연관성을 분석하여 국내 산림부분 ODA사업의 한계점 파악과 SDGs 이행을 위한 제언을 했음에 그 의의가 있다.

주거복지 분배 불평등 지수 연구 (Analysis on the Inequality Indicator of the Housing Condition Distribution)

  • 이강희;채창우
    • KIEAE Journal
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    • 제17권2호
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    • pp.45-51
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    • 2017
  • Purpose: Housing is the most essential element for well-being in a society. The government would continuously supply decent housings to make a better living condition for people. As various housing policies have been implemented into practice, the effectiveness of policies need to be assessed and improved to rearrange the financial resources. The indicators, such as quality of life, housing supply amount and etc, could be used to estimate housing policy to provide a guidance for a new policy direction. Though various indicators are utilized to assess the policy effect, most of the items are depend upon a relativeness in aspect to assessment goal, items, time and its weighting. Therefore, it needs an absolute indicator to compare the policy effectiveness regardless of time elapse or items. In this paper, it developed the housing welfare indicator to assess the level of living condition, utilizing the Gini coefficient which is used for explanation on income distribution. Method: To suggest an inequity indicator, this paper used Gini coefficient to explain the level of living condition which is used on economics to provide the level of income distribution. Data are collected through the Korea Housing Survey by Ministry of Land, Infrastructure and Transport between 2006 and 2014. Indicators of living condition focused on the development of the estimation model using the frequency of room use. Result: Gini coefficient between 2004 and 2014 is about 1.5 score except in year 2013, and the trend of score has been decreased slowly which means the inequality gradually improved. In this result, it implies the living condition and distribution level would be improved than before.