Study of ephemeral gully erosion in a small upland catchment on the Inner-Mongolian Plateau

Cheng, Hong; Wu, Yue; Zou, Xueyong; Ha, Si; Zhao, Yawen; Liu, Dagang; Yue, Xinglin

doi:10.1016/j.still.2005.09.006

Cited by 42 publications

(35 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fig. 7 shows the pairs of the dimensionless groups obtained from the bibliographic data (Capra et al, 2009;Cheng et al, 2006;Daba et al, 2003;Di Stefano and Ferro, 2011;Moges and Holden, 2008;Zhang et al, 2007) and the ones obtained in this investigation. The diagram shows how badland points are well predicted by a power regression model (Eq.…”

Section: Resultsmentioning

confidence: 99%

Testing GIS-morphometric analysis of some Sicilian badlands

Caraballo-Arias

Conoscenti

Stefano

et al. 2014

CATENA

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Testing GIS-morphometric analysis of some Sicilian badlands

Caraballo-Arias

Conoscenti

Stefano

et al. 2014

CATENA

View full text Add to dashboard Cite

“…Different authors (Casalì et al, 1999;Nachtergaele et al, 2001;Capra et al, 2005;Cheng et al, 2006) proposed that the total channel length L (m) can be considered a good estimator of the total eroded volume V (m 3 ) by the expression:…”

Section: Relationship Between Length and Volume Of The Channels (Rillmentioning

confidence: 99%

Similarity between morphological characteristics of rills and ephemeral gullies in Sicily, Italy

Capra

Stefano

Ferro

et al. 2009

Hydrological Processes

View full text Add to dashboard Cite

Abstract:This paper reports the results of a field investigation aimed to establish morphological similarity between rills and ephemeral gullies. Rill measurements were made on 14 plots having a surface area of 22-352 m 2 located on a 14Ð9% slope and on a plot 6Ð0 m wide and 22Ð0 m long having a uniform 22Ð0% slope. The plots are located on the experimental station for soil erosion measurements, 'Sparacia', of the Agricultural Faculty of Palermo University, in Sicily, Italy. All plots are subjected to natural rainfall. The measurements were made immediately following five events between November 2004 and December 2005. The ephemeral gully measurements were made on a cultivated area of about 120 ha, located in Central Sicily, which is representative of many soil-crop conditions in the Mediterranean basin. The morphological similarity between rill and ephemeral gully was first tested. Then a power relationship between rill or gully volume and length, theoretically deduced by dimensional analysis and self-similarity theory, was applied. This power relationship needs a different scale factor for rill and gully measurements. Finally, using two dimensionless groups representative of the channel morphology variables, the analysis showed that a single relationship can be applied to rill and gully measurements.

show abstract

“…Since the mid-1980s, much attention has been given to gullies (Cheng et al, 2006), which, of all erosion processes, have been found to be one of the most destructive mechanisms of agricultural soils . Previous studies report that soil loss rates by gully erosion represent from 10% (Casalí et al, 1999) to 94% (Poesen et al, 2003) of the total sediment loss caused by water erosion.…”

Section: Introductionmentioning

confidence: 99%

Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision

Svoray

Markovitch

2009

Earth Surf Processes Landf

View full text Add to dashboard Cite

High-resolution airphotographs and digital elevation models (DEMs) were used to study areas prone to gully incision in a small agricultural catchment in northern Israel. Data are analyzed to understand better the integrated effect of environmental and human factors on gully incision. The effect of fl ow accumulation, slope, unpaved roads density and tillage direction on gully width and length is found discontinuous and topography -in the form of the topographic threshold -was found to be the most dominant factor on gully incision in the catchment scale. The topographic threshold coeffi cients observed in Yehezkel catchment were lower than those found in previous studies, due to the effect of large rainfall events during the early winter season, when the soil in fi elds is still unprotected by crops. In addition, a survey of previous studies shows that, in cultivated areas, there is relationship between the topographic threshold coeffi cients a (multiplier) and b (exponent). The infl uence of unpaved roads and tillage direction on gully incision was also found signifi cant and consistent during the two seasons observed, while the nonparametric test showed that it added to the prediction in ~15% of the gullies. Incision points density plot show that of the two parameters, the unpaved roads were found to have greater infl uence on gully-head location than tillage direction. Studying the phenomenon on the catchment scale allows better understanding of the effect of spatial variation on gully-head location. Copyright

show abstract

Study of ephemeral gully erosion in a small upland catchment on the Inner-Mongolian Plateau

Cited by 42 publications

References 13 publications

Testing GIS-morphometric analysis of some Sicilian badlands

Testing GIS-morphometric analysis of some Sicilian badlands

Similarity between morphological characteristics of rills and ephemeral gullies in Sicily, Italy

Catchment scale analysis of the effect of topography, tillage direction and unpaved roads on ephemeral gully incision

Contact Info

Product

Resources

About