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Annual Layers in River-bed Sediment of a Stagnant River-mouth Area of the Kitagawa Brook, Central Japan : Volume 367, Issue 367 (03/03/2015)

By Kurashige, Y.

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Book Id: WPLBN0003989868
Format Type: PDF Article :
File Size: Pages 7
Reproduction Date: 2015

Title: Annual Layers in River-bed Sediment of a Stagnant River-mouth Area of the Kitagawa Brook, Central Japan : Volume 367, Issue 367 (03/03/2015)  
Author: Kurashige, Y.
Volume: Vol. 367, Issue 367
Language: English
Subject: Science, Proceedings, International
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2015
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Nakano, T., Kurashige, Y., Domitsu, H., Kasubuchi, E., & Maruo, M. (2015). Annual Layers in River-bed Sediment of a Stagnant River-mouth Area of the Kitagawa Brook, Central Japan : Volume 367, Issue 367 (03/03/2015). Retrieved from http://www.ebooklibrary.org/


Description
Description: School of Environmental Science, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone 522-8533, Japan. The river mouth of Kitagawa Brook is normally stagnant because it is easily closed by sand and gravel transported by littoral currents of Biwa Lake, Japan. A new urban area exists in the basin and sewerage works were constructed in the early 1990s, so contaminated water with a bad odour had flowed into the brook before the sewerage works. To reduce the smell, the river mouth was excavated to narrow the channel in the early 1980s. Thus, river-bed sediment after this excavation only occurs at the river mouth. From the upper 24 cm of a sediment core, we found 19 strata of leaves which were supplied from deciduous trees in autumn. We also found several gravel layers which were supplied from the lake during severe storms. The combination of veins and gravel layers were reconstructed for about 20 years of sediment records with an error of two to three years.

Summary
Annual layers in river-bed sediment of a stagnant river-mouth area of the Kitagawa Brook, Central Japan

 

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