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Title: Sediment deposition and pedogenesis in exclosures in the Tigray highlands, Ethiopia
Authors: Descheemaeker, Katrien ×
Nyssen, Jan
Rossi, Joni
Poesen, Jean
Haile, M
Raes, Dirk
Muys, Bart
Moeyersons, J
Deckers, Jozef A. #
Issue Date: Jun-2006
Publisher: Elsevier science bv
Series Title: Geoderma vol:132 issue:3-4 pages:291-314
Abstract: In the Tigray highlands of Northern Ethiopia, the establishment of exclosures (i.e., areas closed for gazing and agriculture) has become an important measure to combat land degradation and restore vegetative cover. Exclosures are commonly found on steep slopes and downslope from a sediment source area. In this study their sediment trapping capacity and controlling factors were investigated. Total sediment depth turned out to be related to vegetation cover, sediment source area and in some cases slope gradient. Thickness of recent, short-term (< 20 years) sediment deposits was strongly related to distance from the top edge of the closed area, slope gradient, vegetation cover and characteristics of the sediment source area. Mean sediment deposition rates ranged between 26 and 123 Mg ha(-1) yr(-1). Under influence of vegetation and sediment deposition dark soils rich in organic matter (Phaeozems) develop. In view of their high sediment trapping capacity, exclosures are highly valued as efficient soil conservation measures in the Tigray highlands. (c) 2005 Elsevier B.V. All rights reserved.
ISSN: 0016-7061
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division Soil and Water Management
Division of Geography & Tourism
Division Forest, Nature and Landscape Research
× corresponding author
# (joint) last author

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