• Title/Summary/Keyword: Bio-indicator

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

  • Cho, Eun Jung;Oh, Yun Gyeong;Bae, Seung Jong;Kim, Soo Jin;Lee, Sang Hyun
    • Journal of Korean Society of Rural Planning
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    • v.27 no.1
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    • pp.9-20
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    • 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.

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

  • Kim, Young-Taek;Choi, Soo-Myung;Cho, Eun-Jung;Yoon, Chi Wook;Im, Sang-Bong
    • Journal of Korean Society of Rural Planning
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    • v.20 no.3
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    • pp.131-141
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    • 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.

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

  • Oh, Jeong-Ik
    • Journal of Korean Society of Environmental Engineers
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    • v.32 no.4
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    • pp.363-368
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    • 2010
  • The overall indicator of microbial activity in the fermentation-extinction reaction of food waste by using bio wood-chips were investigated by considering adenosine tri-phosphate(ATP). Degradation rate of organic compounds, which was represented by chemical oxygen demand(COD) and total nitrogen(TN), was increased with the concentration of adenosine tri-phosphate during fermentation-extinction reaction of food waste by using bio-wood chips. With this view, the ATP would be one of the overall evaluation indicator of organic degradation in the species of bio-wood chip for the fermentation-extinction of food waste.

국내 지하수 미소생물 분포 조사를 통한 Bio-Indicator System 작성

  • Jeon Seon-Geum;Won Lee-Jeong;Berkhoff Sven;Kim Hyeong-Su
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2005.04a
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    • pp.340-343
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    • 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.

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Insect natural enemies as bioindicators in rice paddies

  • Ueno, Takatoshi
    • Korean Journal of Agricultural Science
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    • v.39 no.4
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    • pp.545-553
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    • 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.

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

  • Lee, Dong-Kun;Jeon, Seong-Woo
    • Journal of Environmental Impact Assessment
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    • v.6 no.1
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    • pp.33-45
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    • 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.

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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
    • Korean Journal of Soil Science and Fertilizer
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    • v.50 no.5
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    • pp.472-481
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    • 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.

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

  • Lee, Dong-Geon;Moon, Chang-Kwon;Heo, Eunn-Yeong
    • New & Renewable Energy
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    • v.6 no.2
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    • pp.33-39
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    • 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.

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

  • Park, Soo-Youl;Shin, Seung-Rim;Shin, Joung-Il;Jun, Kun
    • Textile Coloration and Finishing
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    • v.19 no.3
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    • pp.6-11
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    • 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.