Roles of Aquatic Plants on Erosion Relief of Stream Bed
Roles of the vegetation to mitigate the erosion of the
stream bed or to facilitate the deposition of the fine sediments by the
species of the aquatic plants were presented. Field investigation on the
estimation of the change of the bed level and the estimation of the flow
characteristics were performed. The results showed that Phragmites
japonica has the mitigation function of 0.3m-0.4m of the erosion in the
range of higher than 1.0m/s of flow velocity at the vegetated region.
Phragmites communis has the mitigation function of 0.2m-0.3m of the
erosion in the range of higher than 0.7m/s of flow velocity at the
vegetated region. Salix gracilistyla has greater role than Phragmites
japonica and Phragmites communis to sustain the stable channel. It
has the mitigation function of 0.4m-0.5m of the erosion in the range of
higher than 1.4m/s of flow velocity. Miscanthus sacchariflorus has a
weak role compared with that of Phragmites japonica and Salix
gracilistyla, but it has still function for sustaining the stable bed. From
these results, the vegetation has effective roles to mitigate the erosion
or to facilitate the deposition of the stream bed.
[1] J. H. Kim, “Hydraulic effects on vegetation impact by flood flow in urban
streams.” Proceedings of the 8th International Symposium on New
Technologies for Urban Safety of Mega Cities in Asia, 2009, pp. 72-80.
[2] M. Miyazaki, S. Honda, H. Kawase, N. Awamura, and M. Kitoh, “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, Vol. 9, 2003, pp. 79-84. (in Japanese).
[3] Y. Shimizu, K. Osada, and M. H. Kim, “Study on the flood disturbance
and the destruction of vegetation in a degraded gravel-bed river.” River
Technology Journal, Vol. 9, 2009, pp. 377-382. (in Japanese).
[4] N. Tamai, N. Mizuno, and S. Nakamura, Environmental River
Engineering, University of Tokyo, Tokyo, 2009, pp. 125-128. (in
Japanese).
[5] J. H. Kim, “Effects on Erosion/Deposition of Stream Bed by Aquatic
Plants”, Asia Oceania Geophysical Society, Singapore, 2009, pp. 12-16.
[6] National Rivers Authority. River Corridors Survey Methods and
Procedures, 1992, London.
[7] National Institute of Environmental Research. Survey and Evaluation of
Aquatic Ecosystem Health in the Nakdong River, Ministry of
Environment, Seoul, 1998 pp. 224-226. (in Korean).
[1] J. H. Kim, “Hydraulic effects on vegetation impact by flood flow in urban
streams.” Proceedings of the 8th International Symposium on New
Technologies for Urban Safety of Mega Cities in Asia, 2009, pp. 72-80.
[2] M. Miyazaki, S. Honda, H. Kawase, N. Awamura, and M. Kitoh, “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, Vol. 9, 2003, pp. 79-84. (in Japanese).
[3] Y. Shimizu, K. Osada, and M. H. Kim, “Study on the flood disturbance
and the destruction of vegetation in a degraded gravel-bed river.” River
Technology Journal, Vol. 9, 2009, pp. 377-382. (in Japanese).
[4] N. Tamai, N. Mizuno, and S. Nakamura, Environmental River
Engineering, University of Tokyo, Tokyo, 2009, pp. 125-128. (in
Japanese).
[5] J. H. Kim, “Effects on Erosion/Deposition of Stream Bed by Aquatic
Plants”, Asia Oceania Geophysical Society, Singapore, 2009, pp. 12-16.
[6] National Rivers Authority. River Corridors Survey Methods and
Procedures, 1992, London.
[7] National Institute of Environmental Research. Survey and Evaluation of
Aquatic Ecosystem Health in the Nakdong River, Ministry of
Environment, Seoul, 1998 pp. 224-226. (in Korean).
@article{"International Journal of Biological, Life and Agricultural Sciences:70118", author = "Jin-Hong Kim", title = "Roles of Aquatic Plants on Erosion Relief of Stream Bed", abstract = "Roles of the vegetation to mitigate the erosion of the
stream bed or to facilitate the deposition of the fine sediments by the
species of the aquatic plants were presented. Field investigation on the
estimation of the change of the bed level and the estimation of the flow
characteristics were performed. The results showed that Phragmites
japonica has the mitigation function of 0.3m-0.4m of the erosion in the
range of higher than 1.0m/s of flow velocity at the vegetated region.
Phragmites communis has the mitigation function of 0.2m-0.3m of the
erosion in the range of higher than 0.7m/s of flow velocity at the
vegetated region. Salix gracilistyla has greater role than Phragmites
japonica and Phragmites communis to sustain the stable channel. It
has the mitigation function of 0.4m-0.5m of the erosion in the range of
higher than 1.4m/s of flow velocity. Miscanthus sacchariflorus has a
weak role compared with that of Phragmites japonica and Salix
gracilistyla, but it has still function for sustaining the stable bed. From
these results, the vegetation has effective roles to mitigate the erosion
or to facilitate the deposition of the stream bed.", keywords = "Aquatic plants, Phragmites japonica, Phragmites
communis, Miscanthus sacchariflorus, Salix gracilistyla.", volume = "9", number = "7", pages = "723-5", }