Field investigation of rill and ephemeral gully erosion in the Sparacia experimental area, South Italy

Stefano, Costanza Di; Ferro, Vito; Pampalone, Vincenzo; Sanzone, Francesco

doi:10.1016/j.catena.2012.10.012

Cited by 124 publications

(91 citation statements)

References 20 publications

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“…Accurate ground measurements of ephemeral gully erosion are frequently carried out using a microtopographic profiler, a tape or a ruler, to assess some channel cross-sections (Di Stefano and Ferro, 2011;Di Stefano et al, 2013). These ground measurements, which are simple and lowReview N o n -c o m m e r c i a l u s e o n l y cost, allow measurement of the cross-sectional areas and the reach length and calculation of the ephemeral gully volume, even if, according to Casalì et al (2006), the limit of these simple methods is due to the lack of information on the errors associated with ground measurements of the cross-sections.…”

Section: Rill and Gully Erosion Measurement By Ground Monitoring Techmentioning

confidence: 99%

Predicting plot soil loss by empirical and process-oriented approaches. A review

Bagarello

Ferro²,

Flanagan

2018

J Agricult Engineer

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Soil erosion directly affects the quality of the soil, its agricultural productivity and its biological diversity. Many mathematical models have been developed to estimate plot soil erosion at different temporal scales. At present, empirical soil loss equations and process-oriented models are considered as constituting a complementary suite of models to be chosen to meet the specific user need. In this paper, the Universal Soil Loss Equation and its revised versions are first reviewed. Selected methodologies developed to estimate the factors of the model with the aim to improve the soil loss estimate are described. Then the Water Erosion Prediction Project which represents a process-oriented technology for soil erosion prediction at different spatial scales, is presented. The available criteria to discriminate between acceptable and unacceptable soil loss estimates are subsequently introduced. Finally, some research needs, concerning tests of both empirical and process-oriented models, estimates of the soil loss of given return periods, reliability of soil loss measurements, measurements of rill and gully erosion, and physical models are delineated.

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Section: Rill and Gully Erosion Measurement By Ground Monitoring Techmentioning

confidence: 99%

Predicting plot soil loss by empirical and process-oriented approaches. A review

Bagarello

Ferro²,

Flanagan

2018

J Agricult Engineer

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“…However, as a general discussion, it can still be affirmed that the exponent of Eq. (4) is independent of the type of channelized erosion while different scale factors hold depending on the size of the erosion landform considered (Di Stefano et al, 2013).…”

Section: Gully Morphometrymentioning

confidence: 99%

“…Lane and Foster, 1980;Foster et al, 1984;Sidorchuk, 1998;Bennett et al, 2000;Giménez and Govers, 2001). These equations are used as general modelling tools of channel hydraulic characteristics, and some researchers have used them for small ephemeral channels studies during storm flow events (Rendell and Alexander, 1979;Di Stefano et al, 2013).…”

Section: Hydraulic Characterization Of the Gullymentioning

confidence: 99%

“…(12) to (14) have been applied to different types of channels: natural rills, ephemeral and permanent gullies, streams and rivers (e.g. Leopold and Maddock, 1953;Leopold and Miller, 1956;Thornes, 1970Thornes, , 1974Graf, 1971;Hamlin and Thornes, 1974;Gilley et al, 1990;Govers, 1992;Foster et al, 1984;Abrahams et al, 1996;Di Stefano et al, 2013) and simulated experiments under controlled laboratory conditions (e.g. Lane and Foster, 1980;Foster et al, 1984;Sidorchuk, 1998;Bennett et al, 2000;Giménez and Govers, 2001).…”

Section: Hydraulic Characterization Of the Gullymentioning

confidence: 99%

“…Gully erosion studies have used simple empirical equations for analyzing the morphometric and hydraulic characteristics of gullies (Nachtergaele et al, 2001a(Nachtergaele et al, , 2001b(Nachtergaele et al, , 2002Capra et al, 2005Capra et al, , 2009Bruno et al, 2008;Di Stefano and Ferro, 2011;Kompani-Zare et al, 2011;El Maaoui et al, 2012;Di Stefano et al, 2013;Frankl et al, 2013;Caraballo-Arias et al, 2014). Since gully erosion processes are often considered similar to those occurring in other types of channelized water flows, many of the empirical equations used for gully erosion assessment have their origins in rills, streams or rivers.…”

Section: Introductionmentioning

confidence: 99%

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Morphometric and hydraulic geometry assessment of a gully in SW Spain

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Effects of different tillage practices on rill distribution of sloping farmland

Wang

2021

Agronomy Journal

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To better understand how surface roughness affects soil erosion, we investigated the rill distribution of sloping farmland under tillage practices in China's Loess Plateau region. Four tillage treatments (three tillage practices and a non-tillage control) were simulated manually using five slope gradient levels (3˚-20˚) and two rainfall intensities (90 and 120 mm h -1 ). The spatial distribution of rills was extracted and four indices were derived based on Strahler's stream ordering. With increasing slope gradient, random roughness exhibited a decreasing effect on sediment yield, and the interaction effect changed from negative to positive at a critical slope gradient of ∼10˚. Low-order rills gradually merged into high-order rills, forming a complete rill network toward higher slope gradients. The bifurcation ratio of different treatments did not differ considerably. With increasing surface roughness, the length of firstorder rills and their longitudinal river slope decreased. For example, on the 10˚slope under 90 mm h -1 rainfall intensity, the longitudinal river slope of contour plowing, manual hoeing, and contour drilling treatments decreased respectively by 29.4, 38, and 48.9% relative to the value of smooth surface (control) with a rise in rill order. Yet a greater surface roughness had the least effect on the number, length, and longitudinal river slope of third-order rills. A similar result was obtained in that correlation between sediment yield and the length of third-order rills was the weakest overall. The results indicate that surface roughness affects rill distribution and soil erosion on sloping farmland via its effect upon low-orderrill development. INTRODUCTIONRill erosion is a major soil erosion process caused by water on extensive sloping farmlands and rangelands worldwide, leading to serious soil loss (Kimaro et al., 2008). Rill erosion is a major type of soil erosion, because sediment particles detached from both interrill areas and the rill wetted perimeter are easy to transport in rill channels (Nearing et al., 1997).

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Field investigation of rill and ephemeral gully erosion in the Sparacia experimental area, South Italy

Cited by 124 publications

References 20 publications

Predicting plot soil loss by empirical and process-oriented approaches. A review

Predicting plot soil loss by empirical and process-oriented approaches. A review

Morphometric and hydraulic geometry assessment of a gully in SW Spain

Effects of different tillage practices on rill distribution of sloping farmland

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