Predicting gully erosion using landform evolution models: Insights from mining landforms

2021 ◽  
Author(s):  
Greg R. Hancock ◽  
Garry R. Willgoose
Keyword(s):  
Gully Erosion ◽  
Landform Evolution

LEE VS. STOSS: THE ROLE OF AEOLIAN PROCESSES IN GULLY EROSION

2016 ◽  
Author(s):  
Jamie Kincheloe ◽  
◽  
A. Nandi ◽  
Ingrid Luffman
Keyword(s):  
Gully Erosion ◽  
Aeolian Processes

scholarly journals Geomorphic effects of recurrent outburst superfloods in the Yigong River on the southeastern margin of Tibet

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kaiheng Hu ◽  
Chaohua Wu ◽  
Li Wei ◽  
Xiaopeng Zhang ◽  
Qiyuan Zhang ◽  
...  
Keyword(s):  
Landslide Dam ◽  
Upstream Migration ◽  
One Dimensional ◽  
Landform Evolution ◽  
Outburst Floods ◽  
Stepwise Method ◽  
Large Landslide ◽  
Southeastern Margin ◽  
Channel Slope ◽  
The One

AbstractLandslide dam outburst floods have a significant impact on landform evolution in high mountainous areas. Historic landslide dams on the Yigong River, southeastern Tibet, generated two outburst superfloods > 105 m3/s in 1902 and 2000 AD. One of the slackwater deposits, which was newly found immediately downstream of the historic dams, has been dated to 7 ka BP. The one-dimensional backwater stepwise method gives an estimate of 225,000 m3/s for the peak flow related to the paleo-stage indicator of 7 ka BP. The recurrence of at least three large landslide dam impoundments and super-outburst floods at the exit of Yigong Lake during the Holocene greatly changed the morphology of the Yigong River. More than 0.26 billion m3 of sediment has been aggraded in the dammed lake while the landslide sediment doubles the channel slope behind the dam. Repeated landslide damming may be a persistent source of outburst floods and impede the upstream migration of river knickpoints in the southeastern margin of Tibet.

Evaluating a new Landform Evolution Model: a case study using a proposed mine rehabilitation landform

2021 ◽  
Author(s):  
W. D. Dimuth P. Welivitiya ◽  
Garry R. Willgoose ◽  
Greg R. Hancock
Keyword(s):  
Evolution Model ◽  
Landform Evolution ◽  
Mine Rehabilitation

scholarly journals Land-Use/-Cover Changes and Their Effect on Soil Erosion and River Suspended Sediment Load in Different Landscape Zones of European Russia during 1970–2017

Water ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1631
Author(s):  
Artyom V. Gusarov
Keyword(s):  
Soviet Union ◽  
Suspended Sediment ◽  
Sediment Load ◽  
Gully Erosion ◽  
European Russia ◽  
Relative Reduction ◽  
Forest Steppe ◽  
Suspended Sediment Load ◽  
Cultivated Land ◽  
Study Region

Contemporary trends in cultivated land and their influence on soil/gully erosion and river suspended sediment load were analyzed by various landscape zones within the most populated and agriculturally developed part of European Russia, covering 2,222,390 km2. Based on official statistics from the Russian Federation and the former Soviet Union, this study showed that after the collapse of the Soviet Union in 1991, there was a steady downward trend in cultivated land throughout the study region. From 1970–1987 to 2005–2017, the region lost about 39% of its croplands. Moreover, the most significant relative reduction in cultivated land was noted in the forest zone (south taiga, mixed and broadleaf forests) and the dry steppes and the semi-desert of the Caspian Lowland—about 53% and 65%, respectively. These territories are with climatically risky agriculture and less fertile soils. There was also a widespread reduction in agricultural machinery on croplands and livestock on pastures of the region. A decrease in soil/gully erosion rates over the past decades was also revealed based on state hydrological monitoring data on river suspended sediment load as one of the indicators of the temporal variability of erosion intensity in river basins and the published results of some field research in various parts of the studied landscape zones. The most significant reduction in the intensity of erosion and the load of river suspended sediment was found in European Russia’s forest-steppe zone. This was presumably due to a favorable combination of the above changes in land cover/use and climate change.

Assessment of magnetite as a magnetic tracer for sediments in the study of ephemeral gully erosion: conditioning factors of magnetic susceptibility

2021 ◽  
Author(s):  
Elena Zubieta ◽  
Juan C. Larrasoaña ◽  
Alaitz Aldaz ◽  
Javier Casalí ◽  
Rafael Giménez
Keyword(s):  
Magnetic Susceptibility ◽  
Gully Erosion ◽  
Conditioning Factors ◽  
Ephemeral Gully ◽  
Magnetic Tracer

Estimation of initiation thresholds and soil loss from gully erosion on unpaved roads on China’s Loess Plateau

2021 ◽  
Author(s):  
Yiyang Zhao ◽  
Yan Zhang ◽  
Mutian Yuan ◽  
Meng Yang ◽  
Jiayong Deng
Keyword(s):  
Loess Plateau ◽  
Soil Loss ◽  
Gully Erosion ◽  
Unpaved Roads
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