Variations in albedo among natural and disturbed South Western Cape veld types

Master Thesis

1983

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http://hdl.handle.net/11427/16972
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thesis_sci_1983_johnston_peter_a.pdf (7.28 MB)
Authors
Johnston, Peter A
Supervisors
Fuggle, Richard Francis
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University of Cape Town

Department
Department of Environmental and Geographical Science
Faculty
Faculty of Science
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Abstract
Albedo is an important part of the radiation regime of any surface as it indicates the relative amount of solar radiation retained by the surface. Variations in albedo of the earth's land surface are broad. Bare, moist dark soils reflect as little as 9%, grasslands 26% and sandy deserts 37%. Man alters the natural environment in many ways, one of which is through altering the natural albedos. The primary aim of this project is to determine the actual variation in albedos amongst some South western Cape natural and disturbed veld types. Disturbances such as overgrazing, crop-development and fire are included. Surface readings were taken during January and June in ten veld types and floristic and soil data as well as climatic variables were measured. Disturbed veld types were found to have significantly higher albedos than natural veld types. The net loss of radiation may have significant climatic implications, which are discussed.
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Bibliography.

Keywords
Environmental Studies

Reference:

Johnston, P. 1983. Variations in albedo among natural and disturbed South Western Cape veld types. University of Cape Town.

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