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Title :沖縄県二級河川奥川における自然再生とその評価
Title alternative :AN ASSESSMENT OF EFFECTS AND DURABILITY ON NATURE RESTORATION OF OKU-RIVER IN OKINAWA ISLAND
Authors :宮良, 工
赤松, 良久
湯野, 剛志
宮本, 真琴
神谷, 大介
島谷, 幸宏
Authors alternative :Miyara, Koh
Akamatsu, Yoshihisa
Yuno, Tsuyoshi
Miyamoto, Makoto
Kamiya, daisuke
Shimatani, Yukihiro
Issue Date :Mar-2015
Abstract :A nature restoration project has been conducted in the Oku River in the northem part of Okinawa Main Island. The purpose of this project is to restore the habitat of Ryukyu-ayu,which is extinct in the wild in Okinawa Main Island. The removal of drop structure and the restoration of pool by withdrawing the river bank were conducted to prevent the water leak as subsoil water and revive the structure of riffle and pool. The restoration for fish habitat was indicated by the results of investigation on fish and riverbed forms. These river improvements were evaluated in terms ofbed deformation using numerical simulation. The results of numerical simulation indicate that the removal of drop structure induces the change of the longitudinal profile into original one,and the restored pool maintains the function as a pool over the next ten years.
URL :https://doi.org/10.2208/jscejhe.71.I_1135
Type Local :雑誌掲載論文
ISSN :2185-467X
Publisher :公益社団法人土木学会
URI :http://hdl.handle.net/20.500.12000/38734
Citation :土木学会論文集Bl(水工学) Vol.71 no.4 p.1135 -1140
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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