Improvement in soil loss estimation in USLE type experiments

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Title Improvement in soil loss estimation in USLE type experiments
Author Ciesiolka, C.A.A.; Yu, Bofu; Rose, Calvin Wyatt; Ghadiri, Hossein; Lang, D.; Rosewell, C.
Journal Name Journal of Soil and Water Conservation
Year Published 2006
Place of publication Ankeny, Iowa, USA
Publisher Soil and Water Conservation Society
Abstract Soil erosion experimentation around the world commonly uses field runoff plots from which runoff and soil loss are collected. The volume of the collected water-sediment mixture is usually so great that sub-sampling techniques are required to estimate total soil loss in any erosion event. It has been shown that the commonly used method involving a collection box or tank, agitation of the water-sediment mixture and then sub-sampling can lead to serious under-estimation of total soil loss. The various possible sources of this error are investigated. For the error due to the unavoidable short time delay between completion of sediment stirring and sample collection, a simple practical method of correction based on settling theory is described and illustrated for four different soil types. Application of this correction requires measurement or estimation of the time delay, and of the soil's settling velocity characteristics.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.jswconline.org/
Alternative URI http://www.jswconline.org/content/61/4/223.abstract
Volume 61
Issue Number 4
Page from 223
Page to 229
ISSN 0022-4561
Date Accessioned 2007-02-27
Language en_AU
Research Centre Environmental Futures Research Institute
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Land Capability and Soil Degradation
URI http://hdl.handle.net/10072/14434
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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