Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
Online ISSN : 2185-4688
ISSN-L : 2185-4688
Annual Journal of Civil Engineering in the Ocean Vol.29
EELGRASS BED PROMOTION PROCESS AND RETENTION MECHANISM ON THE CONSTRUCTED ARTIFICIAL BED WITH GRANULATED FLY ASH
Yoshinori KOSHIKAWATadashi HIBINOShinya NAKASHITAIchiro YOSHIOKAKenji NAKAMOTOKastunori YAMAKI
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2013 Volume 69 Issue 2 Pages I_1072-I_1077

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Abstract
 In order to establish a restoration technique for eelgrass bed of Zostera marina in coastal region where thick sludge deposit is present, the applicability of granulated coal fly ash as the construction material of the growth base was investigated. Although the granular artificial growth base showed the tendency of being affected by wave actions at low tide, it had eventually stabilize sufficiently. Porous structure of the growth base contributed to the rapid growth of the rhizomes and roots. As a result, it was possible to maintain the eelgrass bed in the region and, in turn, to enhance the stability of the favorable coastal environment. It was concluded that the eelgrass growth base of granulated coal fly ash is an effective technique to establish a stable seagrass bed in coastal waters.
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© 2013 Japan Society of Civil Engineers
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