• 제목/요약/키워드: Bio-indicator

검색결과 161건 처리시간 0.023초

공간규모별 어촌지역 진단지표 개발 (Development of Diagnostic Indicator in Fishing Villages by Spatial Scale)

  • 조은정;오윤경;배승종;김수진;이상현
    • 농촌계획
    • /
    • 제27권1호
    • /
    • pp.9-20
    • /
    • 2021
  • In order to develop practical indicator that can diagnose the regional conditions and characteristics of fishing villages, this study reviewed domestic and foreign researches and selected the diagnostic indicator of fishing villages by spatial unit. The major categories are divided into population and society, economic conditions, and living conditions. The middle categories consists of population, household, industry, tourism, settlement, environment, safety, health and welfare, education, and culture and leisure. The indicator were selected with reference to the existence of statistical data officially provided according to the spatial range(Si/Gun, eup/myeon, village). Based on the selected indicator, the test evaluation was conducted in Jindo-gun, Jeollanam-do by applying data that can be obtained from KOSIS and web GIS. It is judged that the diagnostic indicator developed through this research can be used in various ways from the planning stage to the implementation stage of the regional development project, such as grasping the current conditions, setting improvement targets, promotion and evaluation/monitoring of the project. In addition, it is expected that it will be possible to carry out regional diagnosis for each spatial unit and to plan and implement regional development projects by giving priority to areas where the level of each department is insufficient.

농촌마을 발전단계별 평가지표 기준 설정 연구 (A Study on the Establishment of Evaluation Indicator Standards on Development Stages of Rural Village)

  • 김영택;최수명;조은정;윤치욱;임상봉
    • 농촌계획
    • /
    • 제20권3호
    • /
    • pp.131-141
    • /
    • 2014
  • This study aimed at setting up the grading indicator standards on development stages for phasing the continuous development process. To achieve the objective of this study, after referring to the proposed cases derived from the reference analysis, the development stages were classified. Also grading criteria of indicators according to development stages were established through the statistical analysis and expert group checking. Development stages of rural village were stepped into 4-stages through the reviews and analysis of reference literature ; preparation-entry-development-advanced stage. Reasonable achievement level of each development stage was established by considering the necessary development period and benchmarking reference target together. On the basis of these clear stepwise development phases, the grading criteria were proposed for determination of the incumbent development stages.

목질바이오칩에 의한 음식물쓰레기 발효-소멸반응에서의 아데노신3인산의 변화 (Variation of Adenosine tri-Phosphate(ATP) in Fermentation-Extinction of Food Wastes with Wood Bio-Chip)

  • 오정익
    • 대한환경공학회지
    • /
    • 제32권4호
    • /
    • pp.363-368
    • /
    • 2010
  • 본 연구에서는 아데노신3인산의 측정을 통하여 음식물 쓰레기의 발효-소멸반응에서의 미생물이 발생 및 활성정도를 총괄할 수 있는 인자를 도출할 수 있었다. 목질바이오칩을 이용한 음식물 쓰레기의 발효-소멸에서 무게감량 및 유기물 분해율이 높아질수록 아데노신3인산의 농도가 증가하였다. 아데노신3인산은 목질바이오칩의 종류별 유기물 분해 및 무게 감량에 대한 성능 선택성 설정에 유용한 인자로 활용 기대된다.

국내 지하수 미소생물 분포 조사를 통한 Bio-Indicator System 작성

  • 전선금;원이정;;김형수
    • 한국지하수토양환경학회:학술대회논문집
    • /
    • 한국지하수토양환경학회 2005년도 총회 및 춘계학술발표회
    • /
    • pp.340-343
    • /
    • 2005
  • 국내 지하수의 지속적인 개발을 위한 훌륭한 방안이 될 수 있는 Stygofauna를 이용한 biological indicator system 개발을 위해 국내 지하수를 대표할 수 있는 국가지하수관측망 약 200여 개소를 선정하여 국내 지하수 미소생물 분포를 조사하였다. 전국의 지하수 생물 채집 결과, Cyclopoida(41.4%)가 우리나라 지하수 생태계에서 가장 전형적인 동물로 나타났으며, 암반대수층보다 에너지와 유기물이 충분한 충적대수층에서 동물의 밀집도가 두 배 가량 높게 나타났다. 생물 분포 또한 충적대수층과 암반대수층이 약간 다르게 나타났다. 권역별 동물 개체수 비교 결과, 금강권역에 비해 영산강과 낙동강권역은 종과 개체수가 적게 나타났다.

  • PDF

Insect natural enemies as bioindicators in rice paddies

  • Ueno, Takatoshi
    • 농업과학연구
    • /
    • 제39권4호
    • /
    • pp.545-553
    • /
    • 2012
  • In Asia, including Japan and Korea, rice paddies occupy the largest cultivated area in agricultural land. Rice paddies provide the habitats for many organisms including endemic species, sustaining high biodiversity. Insect natural enemies inhabiting rice paddies have an important function for rice production as agents of 'ecosystem services' because they play a major role in suppressing rice pests. The diversity and abundance of natural enemies can be a good index reflecting the 'healthiness' of agro-ecosystem services in rice paddies. The present study investigates whether insect natural enemies could be good biological indicators for general arthropod biodiversity and agricultural practice. First, the concept of ideal bio-indicators was summarized. The strategy to explore and select such bio-indicators was then proposed. Lastly, field survey was made to evaluate the abundance and biodiversity of natural enemies in Japanese rice paddies where chemical inputs, i.e., insecticide use, were different. The results showed that reduction of chemical inputs led to an increase in species richness or diversity of natural enemies including parasitoids and predators. Then, the data were analyzed to examine suitable indicator species to assess environmental soundness of agricultural practice and biodiversity in rice paddies. The density of several species of natural enemies did respond both to pesticide use and to general arthropod biodiversity. The analyses thus have indicated that natural enemies can be suitable as bio-indicators. Usefulness of indicator species in rice paddies is discussed in the context of ecologically sound agriculture.

도시지속성지표 구축을 위한 개념적 연구: 환경적 지속성지표를 중심으로 (A Conceptual Study of Sustainable City Indicators: with Priority Given to Environmental Indicators)

  • 이동근;전성우
    • 환경영향평가
    • /
    • 제6권1호
    • /
    • pp.33-45
    • /
    • 1997
  • Nowadays, the environmental conservation has become a hot issue. Also the sustainable city issue is recognized as one of the most important tasks to be solved urgently for urban development. Therefore, the current indicator for sustainable city has been analyzed only as a segment of the environmental indicator which is one kind of branch of social indicator. However, considering the degree of pollution and heightened concern, it is time to develop a new and improved framework for the analysis of the sustainable city indicator. This study aims for the development of sustainable city indicator and the examination of practical method for the use of them. Urban sustainable city indicators are based on the "Pressure-State-Response (PSR) framework" which has been adopted by Organization for Economic Cooperation and Development (OECD). The indicators suggested in this study is composed of the following categories: 1. Indicators of natural environment itself, such as land structure (available land use index etc.), bio-species (bio-diversity index etc.), environment resources (water quantity index etc.) 2. Indicators of relationship between man and environment, such as sustainability of using material (recycle of water index etc.), pressure size (pressure index on air etc.), effort of prevention (environmental basic facility index, etc.) 3. Indicators of environmental state, such as landscape and culture (historical & cultural index etc.), environmental pollution (air pollution index etc.) A sustainable city environment is necessary and obtainable, yet its realization seems to be difficult. The urban pollution problems have become more serious than ever before thus requiring much interest. Therefore, this kind of study is meaningful for the establishment of policy objective, and the development and management environmentally sound and sustainable cities.

  • PDF

Evaluating Soil Respiration as Indicator of Heavy Metal Pollution in Agricultural Field

  • Choi, Won-Suk;Hong, Young-Kyu;Min, Kyung-Jun;Kim, Kwang-Jin;Kim, Sung-Chul
    • 한국토양비료학회지
    • /
    • 제50권5호
    • /
    • pp.472-481
    • /
    • 2017
  • Agricultural field near at the abandoned metal mine and industrial area has a high possibility to be polluted by heavy metals. However, concern about chemical properties including heavy metal concentration has been increased and biological properties such as soil respiration has been minimal in heavy metal polluted field. Therefore, main objective of this research was to evaluate soil respiration as an indicator of heavy metal pollution in agricultural field. Total of 60 sampling sites including each 30 sites of abandoned metal mine and industrial area were selected and heavy metal concentration, soil respiration, and chemical properties were measured. Results showed that heavy metal concentration in metal mine area was ranged Cu: $6.21~85.23mg\;kg^{-1}$, Pb: $23.84{\sim}1,044.72mg\;kg^{-1}$, As: $1.88{\sim}691.44mg\;kg^{-1}$, Zn: $18.72{\sim}527.55mg\;kg^{-1}$, Cd: $0.58{\sim}4.27mg\;kg^{-1}$, and Cu: $0.29{\sim}30.62mg\;kg^{-1}$, Pb: $4.41{\sim}19.77mg\;kg^{-1}$, As: $2.23{\sim}11.76mg\;kg^{-1}$, Zn $39.98{\sim}109.59mg\;kg^{-1}$, Cd $0.29{\sim}0.57mg\;kg^{-1}$ for industrial area respectively. While no sampling site was exceed the threshold value of each heavy metals in industrial field, metal mine area was highly polluted with Pb, As, Zn, and Cd. Soil respiration in the metal mine and industrial area was ranged $12.05{\sim}299.80mg\;O_2\;kg^{-1}$ and $27.68{\sim}330.94mg\;O_2\;kg^{-1}$, respectively. Correlation analysis between heavy metal concentration in soil and soil respiration showed that negative correlation was observed in metal mine area while no correlation was observed in industrial area. This result might indicate that as heavy metal concentration was increased, microbial activity in soil was decreased resulting decrease of soil respiration rate. Overall, soil respiration can be used as indicator of heavy metal pollution in soil and more biological properties need to be evaluated to better understand heavy metal pollution in soil.

상관관계분석, 설비투입액 비교 및 효율성 지표를 통한 신재생에너지보급사업의 정량적 성과분석 고찰 (Outcome Analysis on Renewable Energy Dissemination Program through Correlation Analysis and Effectiveness Indicator)

  • 이동건;문창권;허은녕
    • 신재생에너지
    • /
    • 제6권2호
    • /
    • pp.33-39
    • /
    • 2010
  • The objective of this study is to present a basis for the evaluation on the renewable energy dissemination program in Korea applying the outcome evaluation, one of the five types of evaluation methods of EERE, DOE, and the effectiveness indicator, which is suggested by IEA, OECD. The outcome evaluation quantifies achievements of program outputs and outcomes against planned time frame. We analyze the correlation coefficients between cumulative expenditure on the renewable energy dissemination program and each renewable energy deployment and the unit installation cost of several dissemination programs for the outcome evaluation. Meanwhile, the effectiveness indicator is calculated by dividing the additional renewable energy deployment achieved in a given year by the remaining mid-term realizable potential to 2020 in each source of renewable energy. The results show that correlation coefficients between cumulative expenditure and each renewable energy deployment are significantly positive during the implementation period of each deployment program. And photovoltaic energy, bio energy, and wind power energy show high effectiveness indicator.

Isatin $\alpha-chloride$에 의한 인디고계 염료의 합성 (The Synthesis of Indigoid-Type Dyes Based on Isatin $\alpha-Chloride$)

  • 박수열;신승림;신종일;전근
    • 한국염색가공학회지
    • /
    • 제19권3호
    • /
    • pp.6-11
    • /
    • 2007
  • The indigoid-type dyes based on isatin $\alpha-chloride$ were synthesized and the dyes were discussed with relevance to the "H-chromophore" or "cross-conjugated chromophore". The color-changed properties of the dyes were also investigated by means of visible absorption spectra. The novel dyes from isatin $\alpha-chloride$ are of theoretical interest and such dyes can be used as continuous pH indicators in acid/base titrimetric analyses.