Catenary soil differentiation on opposite-facing slopes related to erosion- deposition and restricted leaching processes, northern Negev, Israel.

M. Wieder, D. H. Yaalon

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12 Scopus citations

Abstract

Two pedomorphic toposequences on sandy material covered by loess, one on a north-facing slope and the other on a south-facing slope, were investigated in the mildly arid region of the northern Negev. On the north-facing slope, where loessial parent material prevails, the extent of erosion and deposition was assessed from the degree of soil differentiation, particularly from the secondary carbonate accumulation. The upland was found to be the most stable catenary member, followed by the soil of the footslope. Superimposed calcic horizons of these caternary members were related to normal and rainy years respectively. On the south-facing slope, where a calcareous sand is the main parent material, into which some eolian dust has been incorporated, erosion and deposition processes, as judged by soil differentiation, are less clear. The rate of deposition on the toeslope appears lower than on the north-facing slope, although the runoff contribution is high. -from Authors

Original languageEnglish
Pages (from-to)119-136
Number of pages18
JournalJournal of Arid Environments
Volume9
Issue number2
DOIs
StatePublished - 1985

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