Growth of Mangrove Forests and the Influence on Flood Disaster at Amami Oshima Island, Japan

Akira Tai; Akihiro Hashimoto; Takuya Oba; Kazuki Kawai; Kazuaki Otsuki; Hiromitsu Nagasaka; Tomonori Saita

doi:10.20965/jdr.2015.p0486

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JDR Vol.10 No.3 pp. 486-494

(2015)

doi: 10.20965/jdr.2015.p0486

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Growth of Mangrove Forests and the Influence on Flood Disaster at Amami Oshima Island, Japan

Akira Tai^1, Akihiro Hashimoto^2, Takuya Oba^3, Kazuki Kawai^3, Kazuaki Otsuki^4, Hiromitsu Nagasaka^5, and Tomonori Saita^*6

^*1Institute for Advanced Study, Kyushu University
744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

^*2Department of Urban and Environmental Engineering, Graduate School of Engineering, Kyushu University, Japan

^*3Department of Maritime Engineering, Graduate School of Engineering, Kyushu University, Japan

^*4Faculty of Science and Technology, Tokyo University of Science, Japan

^*5IDEA Consultants, Inc., Japan

^*6Department of Ocean Civil Engineering, Graduate School of Science and Engineering, Kagoshima University, Japan

Received:

December 17, 2014

Accepted:

April 20, 2015

Published:

June 1, 2015

Keywords:

Amami Oshima, mangrove, sediment transport

Abstract

“Mangrove” is the generic name for plants growing on tropical and subtropical tidal flats. The mangrove is used for many things, including disaster protecting land from high waves and tides and tsunamis, cleaning rivers and drainage containing soil and sand, and providing a variety of organisms with living space. Climate change and rising sea levels are threatening the future of the mangrove. Developing effective ways to conserve mangroves is thus needed, but more must be known about how the mangrove’s ecology and how it develops. It has been pointed out, for example, that mangroves increased flooding by the Sumiyo River in Amami Oshima. We studied ways to develop the mangrove at the Sumiyo River mouth in Amami Oshima and its influence in local flooding, finding that the current mangrove forest had little influence on flooding and that sediment deposition accelerating in Sumiyo Bay due to a sea dike could enlarge the mangrove forest in future.

Cite this article as:

A. Tai, A. Hashimoto, T. Oba, K. Kawai, K. Otsuki, H. Nagasaka, and T. Saita, “Growth of Mangrove Forests and the Influence on Flood Disaster at Amami Oshima Island, Japan,” J. Disaster Res., Vol.10 No.3, pp. 486-494, 2015.

Data files:

References

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[2] A. Tai, A. Hashimoto, H. Oshikawa, and T. Komatsu, “Investigation of flood disaster and evacuation activity of residents in the Sumiyo river basin in Amami Oshima Island on October 20, 2010,” Advances in River Engineering, JSCE, Vol.17, pp. 473-478, 2011 (in Japanese).
[3] Y. Mazda, E. Wolanski, and P. Ridd, “The Role of Physical Processes in Mangrove Environments: manual for the preservation and utilization of mangrove ecosystems,” Terrapub, Tokyo, Japan, 2007.
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[8] Y. Uchiyama, “Modeling wetting and drying scheme based on an extended logarithmic law for a three-dimensional sigma-coordinate coastal ocean model,” Rep. Port and Airport Res. Inst., Yokosuka, Japan, Vol.43, No.4, pp. 3-21, 2004.
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[10] A. Tai, T. Saita, R. Yonekura, S. Ogitsuka, and S. Seino, “Effects on Tide, Tidal Current and Sediment Transport by Coastline change in Hakata Bay,” Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering), Vol.68, No.2, pp. I_744-I_749, 2012.
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This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

[1] [1] A. Hashimoto, A. Tai, H. Ohikawa, and T. Komatsu, “Characteristics of flood disaster and evacuation activities of residents at Amami Oshima Island, Japan, ” IAHS Publ. Red Book Series, Vol.357, pp. 48-56, 2013.

[2] [2] A. Tai, A. Hashimoto, H. Oshikawa, and T. Komatsu, “Investigation of flood disaster and evacuation activity of residents in the Sumiyo river basin in Amami Oshima Island on October 20, 2010,” Advances in River Engineering, JSCE, Vol.17, pp. 473-478, 2011 (in Japanese).

[3] [3] Y. Mazda, E. Wolanski, and P. Ridd, “The Role of Physical Processes in Mangrove Environments: manual for the preservation and utilization of mangrove ecosystems,” Terrapub, Tokyo, Japan, 2007.

[4] [4] UNE, “Climate Change Threat to Pacific Ocean Mangroves,” 2006, http://www.unep.org/ [accessed December 1, 2014]

[5] [5] IPCC WG I, “Climate Change 2007 “The Physical Science Basis,” 2007, http://www.ipcc.ch/ipccreports/ar4-wg1.htm [accessed December 1, 2014]

[6] [6] The Princeton Ocean Model, http://www.aos.princeton.edu/ WWWPUBLIC/htdocs.pom/ [accessed December 1, 2014]

[7] [7] Y. Uchiyama, “Modeling wetting and drying scheme based on an extended logarithmic law for a three-dimensional sigma-coordinate coastal ocean model,” Rep. Port and Airport Res. Inst., Yokosuka, Japan, Vol.43, No.4, pp. 3-21, 2004.

[8] [8] Y. Uchiyama, “Modeling wetting and drying scheme based on an extended logarithmic law for a three-dimensional sigma-coordinate coastal ocean model,” Rep. Port and Airport Res. Inst., Yokosuka, Japan, Vol.43, No.4, pp. 3-21, 2004.

[9] [9] K. Yamamoto, K. Yoshino, Y. Hayami, T. Kasagi, H. Harada, T. Hamada, K. Ohgushi, F. Yamada, S. Yamaguchi, and K. Yokoyama, “Study of Bottom Sediment in the Inner Part of the Ariake Sea – For the Modelling of Suspended Sediment Transport and Expanation of the Accumulation of Fine Particles –,” Report of Saga univ. Ariake bay project, Vol.4, pp. 1-8, 2008.

[10] [10] A. Tai, T. Saita, R. Yonekura, S. Ogitsuka, and S. Seino, “Effects on Tide, Tidal Current and Sediment Transport by Coastline change in Hakata Bay,” Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering), Vol.68, No.2, pp. I_744-I_749, 2012.

[11] [11] J. A. Church and N. J. White, “A 20^th century acceleration in global sea-level rize,” Geophysical Research Letters, Vol.33, L01602, doi:10.1029/2005GL024826, 2006.

[12] [12] A. Cazenave and R. S. Nerem, “Present-day sea level change: Observations and causes,” Reviews of Geophysics, Vol.42, RG3001, doi:10.1029/2003RG000139, 2004.

Growth of Mangrove Forests and the Influence on Flood Disaster at Amami Oshima Island, Japan

Akira Tai*1, Akihiro Hashimoto*2, Takuya Oba*3, Kazuki Kawai*3, Kazuaki Otsuki*4, Hiromitsu Nagasaka*5, and Tomonori Saita*6

Akira Tai^1, Akihiro Hashimoto^2, Takuya Oba^3, Kazuki Kawai^3, Kazuaki Otsuki^4, Hiromitsu Nagasaka^5, and Tomonori Saita^*6