Deposition and Erosion Relief of Riverfront by Vegetation

Jin-Hong Kim

doi:10.17820/eri.2015.2.2.154

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Deposition and Erosion Relief of Riverfront by Vegetation 식생에 의한 하안 퇴적과 침식 경감

30 June 2015. pp. 154-160

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Abstract

This paper presents the field investigation of deposition and erosion relief of a riverfront using vegetation. The results obtained were as follows: Phragmites japonica showed 0.2 m of deposition and 0.3 m - 0.4 m of erosion relief of river front by the critical velocity of 1.0 m/s - 1.2 m/s. P. communis showed 0.1 m - 0.4 m of deposition and 0.2 m - 0.3 m of erosion relief by the critical velocity of 0.6 m/s - 0.7 m/s. Salix gracilistyla showed 0.1 m - 0.2 m of deposition and 0.4 m - 0.5 m of erosion relief by the critical velocity of 1.2 m/s - 1.4 m/s. Miscanthus sacchariflorus showed 0.1 m - 0.4 m of deposition and 0.1 m - 0.2 m of erosion relief by the critical velocity of 0.6 m/s - 0.7 m/s. S. gracilistyla had the greatest role, while M. sacchariflorus had the lowest role for erosion relief. These results showed that aquatic plants had an effective role in sustaining a stable channel.

Keywords

Deposition

Erosion relief

Miscanthus sacchariflorus

Phragmites communis

Phragmites japonica

Salix gracilistyla

본 연구에서는 현지조사를 통해 식생의 하안 퇴적과 침식 경감을 판단하였다. 달뿌리풀은 임계유속 1.0 m/s-1.2 m/s을 기준으로 0.2 m 정도의 하안 퇴적과 0.3 m-0.4 m의 침식 경감 기능을 발휘하였다. 갈대는 임계유속 0.6 m/s-0.7 m/s을 기준으로 0.1 m-0.4 m의 하안 퇴적과 0.2 m-0.3 m의 침식 경감 기능을 발휘하였다. 갯버들은 임계유속 1.2 m/s-1.4 m/s을 기준으로 0.1 m-0.2 m의 하안 퇴적과 0.4 m-0.5 m의 침식 경감 기능을 발휘하였다. 물억새는 임계유속 0.6 m/s-0.7 m/s을 기준으로 0.1 m-0.4 m의 하안 퇴적과 0.1 m-0.2 m의 침식 경감 기능을 나타내었다. 조사 대상 식생 중 갯버들이 가장 높은 하안 침식 경감 기능을, 물억새가 가장 낮은 침식 경감 기능을 발휘하였다. 그러나 현지조사 결과 대상 식물종 모두 하안 퇴적 및 침식 경감 기능을 발휘함으로써 안정하도 형성에 기여함을 알 수 있었다.

키워드

퇴적

침식 경감

물억새

갈대

달뿌리풀

갯버들

References

Kim, J.H. and Choi, I.K. 2013. Vegetation behavior and its habitat region against flood flow in urban streams. Journal of Engineering Science and Technology 8: 307–316.

MOE. 2002. Guideline of River Restoration. Ministry of Environment, Seoul, Korea. (in Korean)

Miyazaki, M., Honda, S., Kawase, H., Awamura, N. and Kitoh, M. 2003. A study concerning the river hydraulic examination method which considers the dynamic characteristics of reed community at the time of the flood. River Technology Journal 9: 79-84. (in Japanese)

NIER. 1998. Survey and Evaluation of Aquatic Ecosystem Health in the Nakdong River. National Institute of Environmental Research, Ministry of Environment, Seoul, Korea. (in Korean)

Shimizu, Y., Osada, K. and Kim, M.H. 2009. Study on the flood disturbance and the destruction of vegetation in a degraded gravel-bed river. River Technology Journal 9: 377-382. (in Japanese)

Yoon, S.E., Kim, J.H. and Choi, S.U. 2008. Guideline of Vegetation Management in Urban Streams. Urban Flood Disaster Management Research Center, Seoul, Korea. (in Korean)

Information

Publisher :Korean Society of Ecology and Infrastructure Engineering
Publisher(Ko) :응용생태공학회
Journal Title :Ecology and Resilient Infrastructure
Journal Title(Ko) :응용생태공학회 논문집
Volume : 2
No :2
Pages :154-160
Received Date : 2015-05-14
Revised Date : 2015-05-25
Accepted Date : 2015-06-23
DOI :https://doi.org/10.17820/eri.2015.2.2.154

Ecology and Resilient Infrastructure ISSN:2288-8527(Online) 응용생태공학회 논문집

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