Show simple item record

dc.contributor.authorJomaa, S
dc.contributor.authorBarry, DA
dc.contributor.authorBrovelli, A
dc.contributor.authorHeng, BCP
dc.contributor.authorSander, GC
dc.contributor.authorParlange, J-Y
dc.contributor.authorRose, CW
dc.date.accessioned2017-05-03T11:02:17Z
dc.date.available2017-05-03T11:02:17Z
dc.date.issued2012
dc.date.modified2013-06-18T02:21:35Z
dc.identifier.issn0341-8162
dc.identifier.doi10.1016/j.catena.2011.11.008
dc.identifier.urihttp://hdl.handle.net/10072/48441
dc.description.abstractRain splash soil erosion in the presence of rock fragments and different initial conditions was tested in laboratory flume experiments under controlled conditions. The aim of the experiments was to ascertain whether cumulative soil erosion is proportional to the area of soil exposed to raindrop detachment under the condition of constant and uniform precipitation. The surface area exposed to rain splash erosion was adjusted by placing rock fragments onto the surface of identically prepared soil in laboratory flumes. The laboratory results showed that the eroded cumulative mass depended on the cumulative runoff, and that soil erosion was proportional to the soil surface area exposed to raindrops, in situations where an initially dry, plowed and smoothed soil surface was ensured. The results showed that this relationship was controlled to a smaller extent by the soil's initial moisture content, bulk density and soil surface characteristics. When the initial conditions were more complex, soil erosion was proportional to the area exposed only at steady state. Then, sediment concentrations during the first part of the erosion event were instead more sensitive to the initial state of the soil surface, whereas at steady state it was observed that the concentrations of eroded sediments were controlled mainly by the effective rainfall and area exposed to raindrops. Previously published field data on rain splash soil erosion were analyzed to ascertain whether the same behavior was evident under field conditions. For this case it was found that rain splash erosion is in general not proportional to the area exposed. In contrast to the controlled laboratory experiments, the field experiments were characterized by non-uniform initial surface roughness, surface soil aging and heterogeneous rock fragment size and spatial distribution. However, the presented laboratory results showed clearly that, for soils with negligible surface roughness, erosion depends on (i) the area of soil exposed to rainfall and (ii) the cumulative runoff, and that it is only slightly dependent on other soil variables.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1665276 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoen_US
dc.publisherElsevier
dc.publisher.placeNetherlands
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom38
dc.relation.ispartofpageto48
dc.relation.ispartofjournalCatena
dc.relation.ispartofvolume92
dc.rights.retentionY
dc.subject.fieldofresearchSoil Sciences not elsewhere classified
dc.subject.fieldofresearchGeology
dc.subject.fieldofresearchPhysical Geography and Environmental Geoscience
dc.subject.fieldofresearchSoil Sciences
dc.subject.fieldofresearchcode050399
dc.subject.fieldofresearchcode0403
dc.subject.fieldofresearchcode0406
dc.subject.fieldofresearchcode0503
dc.titleRain splash soil erosion estimation in the presence of rock fragments
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2012 Elsevier. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2012
gro.hasfulltextFull Text
gro.griffith.authorRose, Calvin W.
gro.griffith.authorSander, Graham C.


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record