2010年奄美大島豪雨がマングローブ・サンゴ生態系に与えた影響

赤松 良久; 宮良 工; 神谷 大介; 竹林 洋史; 二瓶 泰雄; 興 克樹; 竹村 紫苑; 高村 紀彰

doi:10.2208/jscejoe.68.I_1121

Annual Journal of Civil Engineering in the Ocean Vol.28

EFFECT OF THE HEAVY RAIN DISASTER ON MANGROVE AND CORAL ECOSYSTEM AT AMAMI ISLAND IN OCTOBER 2010

Yoshihisa AKAMATSU, Koh MIYARA, Daisuke KAMIYA, Hiroshi TAKEBAYASHI, Yasuo NIHEI, Katsuki OKI, Shion TAKEMURA, Noriaki TAKAMURA

Author information

Keywords: Amami Island, storm rainfall, coral reef, mangrove forest, ecosystem

JOURNAL FREE ACCESS

2012 Volume 68 Issue 2 Pages I_1121-I_1126

DOI https://doi.org/10.2208/jscejoe.68.I_1121

Details

Abstract

The heavy rain disaster occurred in Amami Oshima in October, 2010. A large amount of sediment was supplied from land to coastal area during this disaster, and it would have a great influence on the mangrove and coral ecosystem.
In this study, field observations of mangrove area and coral reef were conducted to reveal the effect of the heavy rain disaster on mangrove and coral ecosystem. The deposited sediment on the coastal area drastically reduce the cover degree of coral. The mangrove trees only along the main channel were flushed due to the bank erosion, but the rapid deposition of the land derived sediment didn't occur in the mangrove forest.

Corresponding author

Register with J-STAGE for free!