Soil erodibility dynamics and its representation for wind erosion and dust emission models

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Title Soil erodibility dynamics and its representation for wind erosion and dust emission models
Author Webb, Nicholas P.; Strong, Craig
Journal Name Aeolian Research
Year Published 2011
Place of publication United Kingdom
Publisher Elsevier
Abstract The susceptibility of a land surface to wind erosion is highly sensitive to changes in soil erodibility. Nonetheless, the performance of wind erosion models continues to be affected by the accuracy of their erodibility representations. There is thus an ongoing need for robust approaches for assessing and modelling soil erodibility dynamics. This paper provides a critical review of research into the controls on soil erodibility dynamics. The review focuses on progress in understanding temporal changes in soil aggregation and crusting as they influence the erodibility of agricultural and rangeland soils, and identifies deficiencies in approaches for resolving the nature and causes of spatio-temporal patterns of erodibility change. A conceptual model of soil erodibility dynamics is developed to represent erodibility changes within a single erodibility continuum. The model is used to identify ongoing research questions that are central to developing new measures and a deeper understanding of soil erodibility dynamics, and representations of soil erodibility for wind erosion and dust emission models. Finally, available soil erodibility metrics are evaluated in the context of their application in addressing these research needs, and new and alternate approaches for reducing the complexity of soil erodibility assessments and models are identified.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1016/j.aeolia.2011.03.002
Volume 3
Issue Number 2
Page from 165
Page to 179
ISSN 1875-9637
Date Accessioned 2012-05-03; 2012-05-31T23:06:51Z
Date Available 2012-05-31T23:06:51Z
Research Centre Atmospheric Environment Research Centre
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Atmospheric Sciences
URI http://hdl.handle.net/10072/45408
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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