• Ecology and Resilient Infrastructure
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• v.6 no.3
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• pp.145-153
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• 2019

The present study performed the impact of the change of low-flow channel on aquatic habitat in a reach of the Wonju-cheon Stream, Korea. The target species was Zacco platypus, a dominant species in the middle- and upper-stream of Wonju Cheon. The River2D model was used for the computation of the flow and the habitat suitability index model was used to estimate the quantity and quality of fish habitat using habitat suitability curves. First, for the restoration to low-flow channel, the restoration was conducted in a form close-to-nature flow channel, and the width of the low-flow channel was expanded and reduced. The results indicated that the Weighted Usable Area (WUA) of the target species improved by about 72% when the width of the low-flow channel was expanded, and that the fish habitat decreased by about 25% when the width of the low-flow channel was reduced.

• Korean Journal of Environment and Ecology
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• v.11 no.2
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• pp.210-213
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• 1997

This study for development of close-to nature revetment techniques is conducted to rehabilitate disturbed stream ecosystem. For this objective, the experimental reach as on-site dimonstrated research was set up in Hakyoul, the Yangjaech'on from Oct. 1995 to Nov. 1996. Special emphasis on the developing process of the design of revetments was given to geomorphic character of 3 types of low flow channel bank: point bar, attack point and shallow bay. Each revetment was developed with the consideration on revegetation of emergent plants. And designed techniques were applied to the experimental reach, and were evaluated with monitoring for 1 year. As a result of the process, the experiment suggested ecological alternatives to enhance technical feasibility and to replace the conventional river-work.

• Journal of Haehwa Medicine
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• v.9 no.1
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• pp.121-134
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• 2000

The following results obtained through studies related on nose. 1. Nose is called mingtang(明堂) mianwang(面王), as it emphasize the meaning of viewing diagnosis(望診) and is called yuanpinzhimen(元牝之門), tianpinzhimen(天牝之門), qiqizhimen(七氣之門) as it emphasize the meaning of the entrance of atmosphere flow. Because it's position is the middle of face, we call tianzhongzhiyue(天中之嶽), zhongyue(中嶽). 2. As the organ of body, nose comes under the category of lung-iron(肺金), functionally comes under the category of heart-fire(心火). Functionally we can smell oder, organically nose is the pathway of respiration and to be resonator. 3. Wuzangliufu(五臟六腑) is arranged closely around the nose. The essence of wuzangliufu(五臟六腑) reflect nose, so nose becomes the standard of coloring diagnosis(色診). 4. We call nose is feihou(肺候), but it is not connected directly between the lung channel and nose. In case of lung symptom(肺證), first of all, nose become to appear the condition of lung, the lung channel and nose is close functionally. 5. The view of channels, nose is a connection with channels of yangming(陽明), bladder(膀胱), du(督脈) directly. By the connecting of each three channels, spleen stomach heart and kidney(脾胃心腎) are connected with indirectly. As the result of the relation, nose helps for body to breathe and to circulate qi(氣) and smell. And so the nature of wuzangliufu(五臟六腑) appear to the nose. 6. Particularly, the yangming channel(陽明經), and the bladder channel(膀胱經) are important. Because air-qi(天氣) reach to kidney lung through nose, ground-qi(地氣) reach to spleen stomach through mouth and yingwei(營衛) revolve through the bladder channel(膀胱經). As the result nose becomes the essential organ of circulation of yinewei(營衛), ascent and descent of qi(氣).

• Journal of the Korean Institute of Landscape Architecture
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• v.40 no.2
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• pp.112-129
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• 2012

The aim of this study was to provide basic data in managing the project that was carried out on Bulgwangcheon in a nature-friendly way to improve the conditions around the areas, which was brought to completion in 2002, based on changes in ecological characteristics. For this propose, this study examined documents related to the project, compared physical and enviromnental changes before and after the project was conducted and analyzed changes in the stream ecosystem. The result showed that in areas that effluent water was often observed, especially when it rained, the river wall was washed away and vegetation was found damaged. As for actual vegetation, this study compared planting coverage of each section of the research area and actual vegetation charts. The results indicated that Lespedeza spp., Aster koraiensis among mixed seeds that were planted in the reservoir path were almost swept away while Festuca arundinacea dominated the areas. Phragmites communis, Miscanthus sacchariflorns and Salix gracilistyla which had been planted in a small number were also almost washed out though a small number of them were left to form a colony. After examining the topography and structure of the plant community, this study found that areas where mixed seed were planted had changed into two types of vegetation: First type of area is dominated by P and R which are usually raised in apron with abundant floating particles. The second type of area is dominated by dry gramineous plant such as F and A. Areas around low flow channel where Phragmites communis, Miscanthus sacchariflorus and Salix gracilistyla planting construction method is applied was washed away with the width of low flow channel reduced. Though P, M and S formed a small community in some areas around the low flow area, they were in small number and in composition of simple plant species. Two ways were suggested in this study to manage the stream in an ecological way. First, adequate revetment construction methods should be applied by monitoring the flow of the stream as well as considering the flood control of urban streams. Second, target vegetation communities that are suitable for the environment of the stream should be chosen and be plantedconstantly with high density. At the same time, ornamental native plants shouldn't be planted as they have been and disturbing vegetation should be removed.