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GeoJournal

, Volume 23, Issue 1, pp 59–67 | Cite as

Patterns of gullying in Zimbabwe

  • Firth C. R. 
  • Whitlow R. 
Soil Erosion and Host Materials in Africa

Abstract

In Zimbabwe four contrasting gully locations and associated gully patterns are present, reflecting spatial variations in precipitation, bedrock, soil type and landuse. Deep dendritic gullies, associated with landslip activity and subsurface piping, characterise the wet Eastern Highlands and areas with sodic soils. Shallow discontinuous gully systems characterise bornhardt terrain in the Communal Lands. Dambo gullies tend to form a continuation of the fluvial system. The pattern and temporal variation of gullies was studied in three areas of Communal Land (Mhondoro-Ngesi, Mangewende, Mutema) with particular reference to the influence of average slope and landuse on gully development. In areas of sodic soils the gullies appear to be largely the product of natural processes and their development has only partly been influenced by landuse changes. In contrast the shallow gullies developed on granitic/gneissic terrain tend to occur on cultivated or recently cultivated land. The case studies indicate that a full assessment of gully development can only be achieved if a temporal perspective is also considered.

Keywords

Precipitation Temporal Variation Spatial Variation Soil Type Natural Process 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • Firth C. R. 
    • 1
  • Whitlow R. 
    • 2
  1. 1.Department of GeographyWest London InstituteIsleworthUnited Kingdom
  2. 2.Department of GeographyUniversity of ZimbabweHarareZimbabwe

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