Saedi Marghmaleki, T., Shorafa, M., Khalilmoghadam, B., Gorji, M. (2014). Laboratory Study of Splash Erosion on Soil SamplesCollected from Different Land Uses of Lordegan Subcatchment, Iran. , 27(4), 545-554. doi: 10.22092/ijsr.2014.126297
T. Saedi Marghmaleki; M. Shorafa; B. Khalilmoghadam; M. Gorji. "Laboratory Study of Splash Erosion on Soil SamplesCollected from Different Land Uses of Lordegan Subcatchment, Iran". , 27, 4, 2014, 545-554. doi: 10.22092/ijsr.2014.126297
Saedi Marghmaleki, T., Shorafa, M., Khalilmoghadam, B., Gorji, M. (2014). 'Laboratory Study of Splash Erosion on Soil SamplesCollected from Different Land Uses of Lordegan Subcatchment, Iran', , 27(4), pp. 545-554. doi: 10.22092/ijsr.2014.126297
Saedi Marghmaleki, T., Shorafa, M., Khalilmoghadam, B., Gorji, M. Laboratory Study of Splash Erosion on Soil SamplesCollected from Different Land Uses of Lordegan Subcatchment, Iran. , 2014; 27(4): 545-554. doi: 10.22092/ijsr.2014.126297

Laboratory Study of Splash Erosion on Soil SamplesCollected from Different Land Uses of Lordegan Subcatchment, Iran

پژوهش های خاک
Volume 27, Issue 4, March 2013, Pages 545-554    PDF (1.81 M)
Document Type: Research Paper
DOI: 10.22092/ijsr.2014.126297
Authors
T. Saedi Marghmaleki1; M. Shorafa* 2; B. Khalilmoghadam3; M. Gorji2
1Graduate student, University of Tehran
2Associate Professor, University of Tehran, Soil Science Department
3Assistant Professor, Khozestan-Ramin University of Agriculture and Natural Resources
Abstract
Splash detachment and transport of soil particles by raindrops impacting a soil surface are the initiating mechanisms of water erosion. The aim of this research was to study the interaction effects of land use, slope, and rainfall intensity on splash erosion rate and its components (upslope, downslope transport, and total splash) in Lordegan sub-catchment. A factorial experiment with three variables was conducted in a completely randomized design with three replications using a Multiple Splash Set (MSS) which was designed and manufactured for this experiment. The treatments included three types of land uses (rangeland, dry farming and rain-fed farming), two levels of rainfall intensity (2.5 and 3.5 mm.min-1) and two slopes of 5% and 15%. The rangeland soils showed higher organic matter and mean weight diameter of aggregates (MWD) and lower calcium carbonates than the dry farming and rain-fed farming soils. There was no significant effect of land use on splash erosion rate and its components, but there was a significant effect of slope and rainfall intensity values on the upslope, downslope, and total splash. Also, the interaction effects of rainfall intensity and land use type showed a significant increasing in splash erosion rate and its components. Therefore, increase in splash erosion rate due to rainfall intensity (from 2.5 to 3.5 mm.min-1) in irrigated farming land use was 1.58 and 1.16 times that of rangeland and dry farming land uses, respectively. 
Keywords
Multiple splash set; Rangelands; Dry farming
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