Access count of this item: 298

Files in This Item:
File Description SizeFormat 
ASM_28_125.pdf3.89 MBAdobe PDFView/Open
Title: GULLY HEAD RETREAT OF AWACH-KANO GULLIES, NYANZA PROVINCE, KENYA: FIELD MEASUREMENTS ANF PIXED-BASED UPALOPE CATCHMENT ASSESSMENT
Authors: KAT SURADA, Yusuke
HOSHINO, Mitsuo
YAMAMOTO, Koshi
YOSHIDA, Hidekazu
SUGITANI, Kenichiro
Keywords: Gully erosion
Headcut retreat
Kavirondo Rift
Pixel-based data management
Upslope catchments.
Issue Date: Sep-2007
Publisher: The Center for African Area Studies, Kyoto University
Journal title: African Study Monographs
Volume: 28
Issue: 3
Start page: 125
End page: 141
Abstract: Gully erosion is a form of land degradation. Soil loss from croplands and residential areas and damage to human infrastructure caused by gully headcut retreat are particularly serious issues for developing countries in sub-Saharan Africa. We focused on the severe gully headcut retreat that incises agricultural land at the foot of the Kavirondo Rift escarpment in western Kenya. Between 2003 and 2004, measurements of the gully headcut retreat were taken. We investigated the topography, geology, and vegetation cover of the upslope catchment through field studies using remotely sensed imagery, analyzed using pixel-based data management. Analysis showed that factors sensitive to runoff were dominant and different overland flow paths caused different kinds of gully headcut retreat. Our pixel-based catchment assessment is a useful measure in the risk management of gully headcut retreat in this region.
DOI: 10.14989/68261
URI: http://hdl.handle.net/2433/68261
Appears in Collections:Vol.28 No.3

Show full item record

Export to RefWorks


Export Format: 


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