• Proceedings of the Korean Society of Environment and Ecology Conference
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• autumn
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• pp.126-128
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• 2004

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2005.04a
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• pp.81-84
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• 2005

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2006.04a
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• pp.153-156
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• 2006

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2005.10a
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• pp.106-108
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• 2005

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2001.04a
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• pp.58-61
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• 2001

• Proceedings of the Korean Society of Environment and Ecology Conference
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• 2001.04a
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• pp.98-100
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• 2001

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2018.10a
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• pp.100-100
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• 2018

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.31 no.4
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• pp.16-21
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• 2002

자연채광 및 인공조명에 의한 건축물 및 실내공간의 빛환경을 평가할 수 있는 프로그램 및 활용사례를 소개하고자 한다.

• Journal of the Korean Society for Marine Environment & Energy
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• v.11 no.2
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• pp.63-69
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• 2008

As a basic study on the creation of artificial tidal flats using dredged sediments, the pilot-scale artificial tidal flats with 4 different mixing ratio of ocean dredged sediment were constructed in Nakdong river estuary. The phragmites australis was transplanted from the adjacent phragmites australis community after construction, and then the survival and growth rate of the planted phragmites australis were measured. Also the changes of soil chemical oxygen demand (COD), ignition loss (IL), and the heterotrophic microbial numbers were monitored. The survival rate of the planted phragmites australis decreased as the mixing ratio of dredged sediment increased but there was little difference of length and diameter of the shoots. 30% of COD and 9% of IL in the tidal flat with 100% dredged sediment decreased after 202 day, however, fluctuations of COD and IL concentrations were also observed possibly due to the open system. It was suggested that the construction of tidal flats using ocean dredged sediment and biological remediation of contaminated ocean dredged sediment can be possible considering the growth rate of transplanted phragmites australis, decrease of organic matter and increased heterotrophic microbial number in the pilot plant with 100% dredged sediment. However, the continuous monitoring on the vegetation and various environmental factors in the artificial tidal flat should be necessary to evaluate the success of creation of artificial flats using dredged sediments.

• Journal of the Korean Society for Marine Environment & Energy
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• v.2 no.1
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• pp.102-112
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• 1999

The purpose of this study is to evaluate the effects of design criteria and environmental conditions of the site of created tidal flats on the structure and function of man-made ecosystem. Seven constructed tidal flats and three natural tidal flats were studied taking the difference in the location (wave height and tidal current), inflow of river water, slope of tidal flat and age after the construction completed into consideration. Parameters studied were physico-chemical and biological characteristics of soils and rate of respiration. The natural tidal flats had higher contents of silt, nitrogen and organic matter compared with the constructed ones. The natural ones had reductive zone below 2cm, whereas the constructed ones had aerobic zone from the surface to below 20cm. The bacterial population in the soil of the constructed tidal flats was one to two orders of magnitude lower than that in the natural ones. Both biomass of macrobenthos and microbial respiration rate, however, were not different significantly between the natural and the constructed tidal flats. There was an exceptional constructed tidal flat with similar physico-chemical and biological characteristics to the natural ones. It is most probable that sufficient conditions to have similar tidal flats to natural ones are the location in enclosed bay or calm coastal area. Thus, to make man-made tidal flats with the same characteristics as those in natural ones, man-made tidal flats should be designed and/or located to enhance the accumulation of silt on tidal flat. It is important to select a place having low water motion for construction of tidal flat.