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Estimating wind transport of sand on vegetated surfaces
Author(s) -
Wasson R. J.,
Nanninga P. M.
Publication year - 1986
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290110505
Subject(s) - vegetation (pathology) , vegetation cover , storm , environmental science , hydrology (agriculture) , aeolian processes , wind speed , cover (algebra) , sediment transport , geology , soil science , atmospheric sciences , geotechnical engineering , geomorphology , ecology , sediment , oceanography , land use , medicine , mechanical engineering , pathology , engineering , biology
Vegetation significantly reduces the transport of sand by wind. We report a generalization of Bagnold's transport equation by finding empirical mathematical expressions to describe the relationships between projected vegetation cover, wind speed outside the area of vegetation, and transport rates. Examples of the use of the equations are given, illustrating the effect of vegetation cover on sand transport, dune encroachment and soil nutrient loss during individual wind storms and over periods of many years.