• Journal of Climate Change Research
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• v.7 no.3
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• pp.351-356
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• 2016

The carbon capture and storage (CCS), which collects and stores carbon dioxide in a geological site, is a promising option to mitigate climate change. However, there is the possibility of carbon dioxide leakage from the soil in the steps of collecting, transporting, and storing. To ensure the feasibility of this technology, it is important to monitor the leakage of carbon dioxide and to assess the potential impacts. As plants are sensitive to the changes in carbon dioxide in the soil environment, we can utilize plant parameter to detect the carbon dioxide leakage. Currently, chlorophyll a content is a conventional index indicating the changes in plants, however, this method is labor intensive and it only utilizes a small portion of leaves. To overcome its limitations, a simple spectroscopic parameter, DGCI (dark green color index), was suggested as an easy and quick indicator. In this study, we compared the values of chlorophyll a contents with DGCI from the experiment investigating the impacts of high underground $CO_2$ on grape plants. Results suggest that DGCI had high correlation with chlorophyll a contents and it has high potential to be utilized as an easy indicator to monitor plants' responses to $CO_2$ treatment.

• Journal of Korean Library and Information Science Society
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• v.34 no.2
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• pp.317-343
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• 2003

This study focuses on the identity establishment of library and information science. It suggests, as a way of establishing the identity, the necessity of promoting of business environment in library and information science. For this purpose, the study examines Korean cases that have damaged the identity, and analyzes why such damage has been done and how it affects the fostering of business environment in library and information. It also diagnoses the possibility of identity establishment such as, for example, professionalism of the librarian and creation of jobs through the fostering of business environment in library and information science.

• Journal of the Speleological Society of Korea
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• no.90
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• pp.1-8
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• 2009

Speleology has been recognized as a comprehensive science. The purpose of this study examine the research trends of the cave in korea. Journal of the Speleological Society was used for analysis. In the 1970s, research was focused primarily in the field of geomorphology(geology). But, since the 2000s, a variety of disciplines in the cave study is in progress.

• Economic and Environmental Geology
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• v.54 no.3
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• pp.353-364
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• 2021

Since the mid-twentieth century, geology has gradually evolved as an interdisciplinary context in South Korea. The journal of Economic and Environmental Geology (EEG) has a long history of over 52 years and published interdisciplinary articles based on geology. In this study, we performed a literature review using topic modeling based on Latent Dirichlet Allocation (LDA), an unsupervised machine learning model, to identify geological topics, historical trends (classic topics and emerging topics), and association by analyzing titles, keywords, and abstracts of 2,571 publications in EEG during 1968-2020. The results showed that 8 topics ('petrology and geochemistry', 'hydrology and hydrogeology', 'economic geology', 'volcanology', 'soil contaminant and remediation', 'general and structural geology', 'geophysics and geophysical exploration', and 'clay mineral') were identified in the EEG. Before 1994, classic topics ('economic geology', 'volcanology', and 'general and structure geology') were dominant research trends. After 1994, emerging topics ('hydrology and hydrogeology', 'soil contaminant and remediation', 'clay mineral') have arisen, and its portion has gradually increased. The result of association analysis showed that EEG tends to be more comprehensive based on 'economic geology'. Our results provide understanding of how geological research topics branch out and merge with other fields using a useful literature review tool for geological research in South Korea.

• Hwankyungkyoyuk
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• v.3 no.1
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• pp.13-16
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• 1992

• Hwankyungkyoyuk
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• v.3 no.1
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• pp.5-12
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• 1992

• Hwankyungkyoyuk
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• v.1 no.1
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• pp.44-61
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• 1990

• Hwankyungkyoyuk
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• v.1 no.1
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• pp.17-28
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• 1990

• Hwankyungkyoyuk
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• v.10 no.1
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• pp.65-76
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• 1997

• Hwankyungkyoyuk
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• v.6 no.1
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• pp.112-120
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• 1994