DSpace DSpace 日本語
 

AIT Associated Repository of Academic Resources >
A.研究報告 >
A1 愛知工業大学研究報告 >
3.愛知工業大学研究報告 .B(1976-2007) >
37号 >

Please use this identifier to cite or link to this item: http://hdl.handle.net/11133/1160

Title: 矢作川のアーマ化した河床における砂礫粒径の特徴
Other Titles: ヤハギガワ ノ アーマカ シタ カワドコ ニオケル サレキ リュウケイ ノ トクチョウ
Characteristics in the material size of the armored beds in the Yahagi River
Authors: 内田, 臣一
加藤, 大典
末松, 朋浩
西山, 正臣
UCHIDA, Shigekazu
KATO, Daisuke
SUEMATSU, Tomohiro
NISHIYAMA, Masaomi
Issue Date: 31-Mar-2002
Publisher: 愛知工業大学
Abstract: Size of the bed material was measured at riffles, pools, and glides (transition zone between riffle and pool) of six stations in the Yahagi River, Aichi Prefecture, Honshu, Japan. River beds at the uppermost station and the lower two stations are deemed to be in natural condition with frequent downstream transport of the material, but the beds are armored and the material probably moves seldom at the intermediate three stations, according to the data on periphytic algae and benthic invertebrates. The material was sampled from two layers of the bed : 1) the extreme surface layer, 2) the second layer beneath the extreme surface. The thickness of each layer was adjusted at the depth of maximum diameter of the gravel at riffles and glides, but it was fixed at 10cm at pools. The material at intermediate three stations was very similar to that at the uppermost station, but the former was distinguished from the latter and that of the lower two stations by little ratio (less than 2%) of sand in the second layers at the riffles, and by small ratio (less than 4%) of sand and fine gravel (under 32mm diameter) in the extreme surface layers at the glides. The material at the pools of the intermediate three stations exhibits no distinctive characteristic from that of the uppermost station and the lower two stations. These characteristics of the material may be formed by washouts of fine gravel and sand even from the second layers at riffles and from the surfaces at glides in armored beds, whereas the washouts are probably limited to the surfaces of riffles in natural beds by frequent movement of material.
URI: http://hdl.handle.net/11133/1160
Appears in Collections:37号

Files in This Item:

File Description SizeFormat
紀要37号B(P109-114).pdf865.68 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback