6533b830fe1ef96bd1297acb

RESEARCH PRODUCT

Assessment of soil particle erodibility and sediment trapping using check dams in small semi-arid catchments

Mohammad AbbasiSaskia KeesstraAli Reza VaeziArtemi CerdàArtemi Cerdà

subject

Sòls Erosió010504 meteorology & atmospheric sciencesGrain size distributioncomplex mixtures01 natural sciencesCement rock check damVegetation coverSediment trapping0105 earth and related environmental sciencesEarth-Surface ProcessesHydrologySediment yieldRemaining capacitySediment yieldSedimentRainfall erosivity04 agricultural and veterinary sciencesBodemfysica en LandbeheerPE&RCAridSoil Physics and Land ManagementParticle-size distribution040103 agronomy & agriculture0401 agriculture forestry and fisheriesParticleGeologyCheck dam

description

Check dams can be used as a source of information for studies on sediment characteristics and soil particle erodibility. In this study, sediment yield and grain size distribution (GSD) were measured in twenty small catchments draining into a rock check dam in NW Iran for different runoffs during 2010–2011. Significant correlations were found between sediment yield and slope steepness, vegetation cover and soil erodibility factor (K) of the catchments. The erodibility of soil particles was determined using the comparison of GSD between sediment and original soil. Clay was the most erodible soil particle which showed 2.05 times more percentage in sediment than the original soil. The erodibility of soil particles were strongly affected by the rainfall erosivity (EI30). Check dams showed more effectiveness in trapping coarse particles (sand and gravel). The effectiveness of check dams in trapping coarse particles enhanced with increase in the remaining capacity of check dams.

yearjournalcountryeditionlanguage
2017-10-01CATENA
https://doi.org/10.1016/j.catena.2017.05.021