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Title :有明海沿岸火山岩地域における海底湧水の湧出機構と栄養塩の輸送特性
Title alternative :CHARACTERISTIC OF NUTRIENT TRANSPORT THROUGH SUBMARINE GROUNDWATER DISCHARGE TO VOLCANIC ROCK AREA ALONG THE ARIAKE BAY
Authors :安元, 純
広城, 吉成
末益, 大嗣
高岡, 秀朋
神野, 健二
Yasumoto, Jun
Hiroshiro, Yoshinari
Suemasu, Hirotsugu
Takaoka, Hidetomo
Jinno, Kenji
Issue Date :2011
Abstract :Submarine Groundwater Discharge (SGD) is now recognized as a significant role to the ecology of coastal environment as well as river discharge. This paper takes a first step for highlighting nutrient transport through SGD to volcanic rock area along the Ariake Bay. SGD rates and their qualities along the coastal area of the Ariake Bay, Ohura, Saga Prefecture, Kawachi, Kumamoto Prefecture, and Fukae, Nagasaki Prefecture regions are investigated. As a result, SGD generally decreased with the distance from the shoreline except Ohura point where large seepage rate is observed. It is presumed that SGD could be classified into two types based on the rate of SGD and the geological structure. Then, it is indicated that the SGD oxidation-reduction condition varied with seepage rate and path way. The results of this study demonstrate that SGD may be considered as a significant source of nutrient to the coastal area in Ariake Bay.
URL :https://doi.org/10.2208/jscejhe.67.I_589
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/20.500.12000/46105
Citation :土木学会論文集B1(水工学) Vol.67 no.4 p.I_589 -I_594
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Agriculture)

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