Articles | Volume 11, issue 1
https://doi.org/10.5194/esurf-11-71-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-11-71-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
01 Feb 2023
Research article |
| 01 Feb 2023
| 01 Feb 2023
Geology and vegetation control landsliding on forest-managed slopes in scarplands
Daniel Draebing
CORRESPONDING AUTHOR
Chair of Geomorphology, University of Bayreuth, 95447 Bayreuth, Germany
Department of Physical Geography, Utrecht University, 3584 CB Utrecht, the Netherlands
Tobias Gebhard
Chair of Geomorphology, University of Bayreuth, 95447 Bayreuth, Germany
Miriam Pheiffer
Chair of Geomorphology, University of Bayreuth, 95447 Bayreuth, Germany
Related authors
Till Mayer, Maxim Deprez, Laurenz Schröer, Veerle Cnudde, and Daniel Draebing
The Cryosphere, 18, 2847–2864, https://doi.org/10.5194/tc-18-2847-2024, https://doi.org/10.5194/tc-18-2847-2024, 2024
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Frost weathering drives rockfall and shapes the evolution of alpine landscapes. We employed a novel combination of investigation techniques to assess the influence of different climatic conditions on high-alpine rock faces. Our results imply that rock walls exposed to freeze–thaw conditions, which are likely to occur at lower elevations, will weather more rapidly than rock walls exposed to sustained freezing conditions due to winter snow cover or permafrost at higher elevations.
Daniel Draebing
Earth Surf. Dynam., 9, 977–994, https://doi.org/10.5194/esurf-9-977-2021, https://doi.org/10.5194/esurf-9-977-2021, 2021
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Alpine rockwalls are affected by weathering processes that result in rock and fracture deformation. This deformation decreases rockwall stability with time. I installed crackmeters along a topographic gradient to identify the spatial and temporal variation of weathering processes. My data show that elevation-dependent snow cover, topographic factors and fracture dipping control the frequency and magnitude of weathering processes and resulting rock kinematics.
Till Mayer, Maxim Deprez, Laurenz Schröer, Veerle Cnudde, and Daniel Draebing
The Cryosphere, 18, 2847–2864, https://doi.org/10.5194/tc-18-2847-2024, https://doi.org/10.5194/tc-18-2847-2024, 2024
Short summary
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Frost weathering drives rockfall and shapes the evolution of alpine landscapes. We employed a novel combination of investigation techniques to assess the influence of different climatic conditions on high-alpine rock faces. Our results imply that rock walls exposed to freeze–thaw conditions, which are likely to occur at lower elevations, will weather more rapidly than rock walls exposed to sustained freezing conditions due to winter snow cover or permafrost at higher elevations.
Daniel Draebing
Earth Surf. Dynam., 9, 977–994, https://doi.org/10.5194/esurf-9-977-2021, https://doi.org/10.5194/esurf-9-977-2021, 2021
Short summary
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Alpine rockwalls are affected by weathering processes that result in rock and fracture deformation. This deformation decreases rockwall stability with time. I installed crackmeters along a topographic gradient to identify the spatial and temporal variation of weathering processes. My data show that elevation-dependent snow cover, topographic factors and fracture dipping control the frequency and magnitude of weathering processes and resulting rock kinematics.
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A machine learning approach to the geomorphometric detection of ribbed moraines in Norway
Stream hydrology controls on ice cliff evolution and survival on debris-covered glaciers
Time-varying drainage basin development and erosion on volcanic edifices
Geomorphic risk maps for river migration using probabilistic modeling – a framework
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A physics-based model for fluvial valley width
Implications for the resilience of modern coastal systems derived from mesoscale barrier dynamics at Fire Island, New York
Quantifying the migration rate of drainage divides from high-resolution topographic data
Long-term monitoring (1953–2019) of geomorphologically active sections of Little Ice Age lateral moraines in the context of changing meteorological conditions
Coevolving edge rounding and shape of glacial erratics: the case of Shap granite, UK
Pliocene shorelines and the epeirogenic motion of continental margins: A target dataset for dynamic topography models
Dimensionless argument: a narrow grain size range near 2 mm plays a special role in river sediment transport and morphodynamics
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Thomas J. Barnes, Thomas V. Schuler, Simon Filhol, and Karianne S. Lilleøren
Earth Surf. Dynam., 12, 801–818, https://doi.org/10.5194/esurf-12-801-2024, https://doi.org/10.5194/esurf-12-801-2024, 2024
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In this paper, we use machine learning to automatically outline landforms based on their characteristics. We test several methods to identify the most accurate and then proceed to develop the most accurate to improve its accuracy further. We manage to outline landforms with 65 %–75 % accuracy, at a resolution of 10 m, thanks to high-quality/high-resolution elevation data. We find that it is possible to run this method at a country scale to quickly produce landform inventories for future studies.
Eric Petersen, Regine Hock, and Michael G. Loso
Earth Surf. Dynam., 12, 727–745, https://doi.org/10.5194/esurf-12-727-2024, https://doi.org/10.5194/esurf-12-727-2024, 2024
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Ice cliffs are melt hot spots that increase melt rates on debris-covered glaciers which otherwise see a reduction in melt rates. In this study, we show how surface runoff streams contribute to the generation, evolution, and survival of ice cliffs by carving into the glacier and transporting rocky debris. On Kennicott Glacier, Alaska, 33 % of ice cliffs are actively influenced by streams, while nearly half are within 10 m of streams.
Daniel O'Hara, Liran Goren, Roos M. J. van Wees, Benjamin Campforts, Pablo Grosse, Pierre Lahitte, Gabor Kereszturi, and Matthieu Kervyn
Earth Surf. Dynam., 12, 709–726, https://doi.org/10.5194/esurf-12-709-2024, https://doi.org/10.5194/esurf-12-709-2024, 2024
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Understanding how volcanic edifices develop drainage basins remains unexplored in landscape evolution. Using digital evolution models of volcanoes with varying ages, we quantify the geometries of their edifices and associated drainage basins through time. We find that these metrics correlate with edifice age and are thus useful indicators of a volcano’s history. We then develop a generalized model for how volcano basins develop and compare our results to basin evolution in other settings.
Brayden Noh, Omar Wani, Kieran B. J. Dunne, and Michael P. Lamb
Earth Surf. Dynam., 12, 691–708, https://doi.org/10.5194/esurf-12-691-2024, https://doi.org/10.5194/esurf-12-691-2024, 2024
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In this paper, we propose a framework for generating risk maps that provide the probabilities of erosion due to river migration. This framework uses concepts from probability theory to learn the river migration model's parameter values from satellite data while taking into account parameter uncertainty. Our analysis shows that such geomorphic risk estimation is more reliable than models that do not explicitly consider various sources of variability and uncertainty.
Steven Y. J. Lai, David Amblas, Aaron Micallef, and Hervé Capart
Earth Surf. Dynam., 12, 621–640, https://doi.org/10.5194/esurf-12-621-2024, https://doi.org/10.5194/esurf-12-621-2024, 2024
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This study explores the creation of submarine canyons and hanging-wall fans on active faults, which can be defined by gravity-dominated breaching and underflow-dominated diffusion processes. The study reveals the self-similarity in canyon–fan long profiles, uncovers Hack’s scaling relationship and proposes a formula to estimate fan volume using canyon length. This is validated by global data from source-to-sink systems, providing insights into deep-water sedimentary processes.
Anuska Narayanan, Sagy Cohen, and John R. Gardner
Earth Surf. Dynam., 12, 581–599, https://doi.org/10.5194/esurf-12-581-2024, https://doi.org/10.5194/esurf-12-581-2024, 2024
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This study investigates the profound impact of deforestation in the Amazon on sediment dynamics. Novel remote sensing data and statistical analyses reveal significant changes, especially in heavily deforested regions, with rapid effects within a year. In less disturbed areas, a 1- to 2-year lag occurs, influenced by natural sediment shifts and human activities. These findings highlight the need to understand the consequences of human activity for our planet's future.
Jacob Hardt, Tim P. Dooley, and Michael R. Hudec
Earth Surf. Dynam., 12, 559–579, https://doi.org/10.5194/esurf-12-559-2024, https://doi.org/10.5194/esurf-12-559-2024, 2024
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We investigate the reaction of salt structures on ice sheet transgressions. We used a series of sandbox models that enabled us to experiment with scaled-down versions of salt bodies from northern Germany. The strongest reactions occurred when large salt pillows were partly covered by the ice load. Subsurface salt structures may play an important role in the energy transition, e.g., as energy storage. Thus, it is important to understand all processes that affect their stability.
Prakash Pokhrel, Mikael Attal, Hugh D. Sinclair, Simon M. Mudd, and Mark Naylor
Earth Surf. Dynam., 12, 515–536, https://doi.org/10.5194/esurf-12-515-2024, https://doi.org/10.5194/esurf-12-515-2024, 2024
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Pebbles become increasingly rounded during downstream transport in rivers due to abrasion. This study quantifies pebble roundness along the length of two Himalayan rivers. We demonstrate that roundness increases with downstream distance and that the rates are dependent on rock type. We apply this to reconstructing travel distances and hence the size of ancient Himalaya. Results show that the ancient river network was larger than the modern one, indicating that there has been river capture.
Jens Martin Turowski, Aaron Bufe, and Stefanie Tofelde
Earth Surf. Dynam., 12, 493–514, https://doi.org/10.5194/esurf-12-493-2024, https://doi.org/10.5194/esurf-12-493-2024, 2024
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Fluvial valleys are ubiquitous landforms, and understanding their formation and evolution affects a wide range of disciplines from archaeology and geology to fish biology. Here, we develop a model to predict the width of fluvial valleys for a wide range of geographic conditions. In the model, fluvial valley width is controlled by the two competing factors of lateral channel mobility and uplift. The model complies with available data and yields a broad range of quantitative predictions.
Daniel J. Ciarletta, Jennifer L. Miselis, Julie C. Bernier, and Arnell S. Forde
Earth Surf. Dynam., 12, 449–475, https://doi.org/10.5194/esurf-12-449-2024, https://doi.org/10.5194/esurf-12-449-2024, 2024
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We reconstructed the evolution of Fire Island, a barrier island in New York, USA, to identify drivers of landscape change. Results reveal Fire Island was once divided into multiple inlet-separated islands with distinct features. Later, inlets closed, and Fire Island’s landscape became more uniform as human activities intensified. The island is now less mobile and less likely to resist and recover from storm impacts and sea level rise. This vulnerability may exist for other stabilized barriers.
Chao Zhou, Xibin Tan, Yiduo Liu, and Feng Shi
Earth Surf. Dynam., 12, 433–448, https://doi.org/10.5194/esurf-12-433-2024, https://doi.org/10.5194/esurf-12-433-2024, 2024
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The drainage-divide stability provides new insights into both the river network evolution and the tectonic and/or climatic changes. Several methods have been proposed to determine the direction of drainage-divide migration. However, how to quantify the migration rate of drainage divides remains challenging. In this paper, we propose a new method to calculate the migration rate of drainage divides from high-resolution topographic data.
Moritz Altmann, Madlene Pfeiffer, Florian Haas, Jakob Rom, Fabian Fleischer, Tobias Heckmann, Livia Piermattei, Michael Wimmer, Lukas Braun, Manuel Stark, Sarah Betz-Nutz, and Michael Becht
Earth Surf. Dynam., 12, 399–431, https://doi.org/10.5194/esurf-12-399-2024, https://doi.org/10.5194/esurf-12-399-2024, 2024
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We show a long-term erosion monitoring of several sections on Little Ice Age lateral moraines with derived sediment yield from historical and current digital elevation modelling (DEM)-based differences. The first study period shows a clearly higher range of variability of sediment yield within the sites than the later periods. In most cases, a decreasing trend of geomorphic activity was observed.
Paul A. Carling
Earth Surf. Dynam., 12, 381–397, https://doi.org/10.5194/esurf-12-381-2024, https://doi.org/10.5194/esurf-12-381-2024, 2024
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Edge rounding in Shap granite glacial erratics is an irregular function of distance from the source outcrop in northern England, UK. Block shape is conservative, evolving according to block fracture mechanics – stochastic and silver ratio models – towards either of two attractor states. Progressive reduction in size occurs for blocks transported at the sole of the ice mass where the blocks are subject to compressive and tensile forces of the ice acting against a bedrock or till surface.
Andrew Hollyday, Maureen E. Raymo, Jacqueline Austermann, Fred Richards, Mark Hoggard, and Alessio Rovere
EGUsphere, https://doi.org/10.5194/egusphere-2023-2099, https://doi.org/10.5194/egusphere-2023-2099, 2024
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Sea level was significantly higher during the Pliocene Epoch, around three million years ago. The present-day elevations of shorelines that formed in the past provide data constraint on the extent of ice sheet melt and the global sea level response under warm Pliocene conditions. In this study, we identify ten escarpments that formed from wavecut erosion during Pliocene times and compare their elevations with model predictions of solid Earth deformation processes to estimate past sea level.
Gary Parker, Chenge An, Michael P. Lamb, Marcelo H. Garcia, Elizabeth H. Dingle, and Jeremy G. Venditti
Earth Surf. Dynam., 12, 367–380, https://doi.org/10.5194/esurf-12-367-2024, https://doi.org/10.5194/esurf-12-367-2024, 2024
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River morphology has traditionally been divided by the size 2 mm. We use dimensionless arguments to show that particles in the 1–5 mm range (i) are the finest range not easily suspended by alluvial flood flows, (ii) are transported preferentially over coarser gravel, and (iii), within limits, are also transported preferentially over sand. We show how fluid viscosity mediates the special status of sediment in this range.
Lindsay Marie Capito, Enrico Pandrin, Walter Bertoldi, Nicola Surian, and Simone Bizzi
Earth Surf. Dynam., 12, 321–345, https://doi.org/10.5194/esurf-12-321-2024, https://doi.org/10.5194/esurf-12-321-2024, 2024
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We propose that the pattern of erosion and deposition from repeat topographic surveys can be a proxy for path length in gravel-bed rivers. With laboratory and field data, we applied tools from signal processing to quantify this periodicity and used these path length estimates to calculate sediment transport using the morphological method. Our results highlight the potential to expand the use of the morphological method using only remotely sensed data as well as its limitations.
Xuxu Wu, Jonathan Malarkey, Roberto Fernández, Jaco H. Baas, Ellen Pollard, and Daniel R. Parsons
Earth Surf. Dynam., 12, 231–247, https://doi.org/10.5194/esurf-12-231-2024, https://doi.org/10.5194/esurf-12-231-2024, 2024
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The seabed changes from flat to rippled in response to the frictional influence of waves and currents. This experimental study has shown that the speed of this change, the size of ripples that result and even whether ripples appear also depend on the amount of sticky mud present. This new classification on the basis of initial mud content should lead to improvements in models of seabed change in present environments by engineers and the interpretation of past environments by geologists.
Andrea D'Alpaos, Davide Tognin, Laura Tommasini, Luigi D'Alpaos, Andrea Rinaldo, and Luca Carniello
Earth Surf. Dynam., 12, 181–199, https://doi.org/10.5194/esurf-12-181-2024, https://doi.org/10.5194/esurf-12-181-2024, 2024
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Sediment erosion induced by wind waves is one of the main drivers of the morphological evolution of shallow tidal environments. However, a reliable description of erosion events for the long-term morphodynamic modelling of tidal systems is still lacking. By statistically characterizing sediment erosion dynamics in the Venice Lagoon over the last 4 centuries, we set up a novel framework for a synthetic, yet reliable, description of erosion events in tidal systems.
Davide Tognin, Andrea D'Alpaos, Luigi D'Alpaos, Andrea Rinaldo, and Luca Carniello
Earth Surf. Dynam., 12, 201–218, https://doi.org/10.5194/esurf-12-201-2024, https://doi.org/10.5194/esurf-12-201-2024, 2024
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Reliable quantification of sediment transport processes is necessary to understand the fate of shallow tidal environments. Here we present a framework for the description of suspended sediment dynamics to quantify deposition in the long-term modelling of shallow tidal systems. This characterization, together with that of erosion events, allows one to set up synthetic, yet reliable, models for the long-term evolution of tidal landscapes.
Emma L. S. Graf, Hugh D. Sinclair, Mikaël Attal, Boris Gailleton, Basanta Raj Adhikari, and Bishnu Raj Baral
Earth Surf. Dynam., 12, 135–161, https://doi.org/10.5194/esurf-12-135-2024, https://doi.org/10.5194/esurf-12-135-2024, 2024
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Using satellite images, we show that, unlike other examples of earthquake-affected rivers, the rivers of central Nepal experienced little increase in sedimentation following the 2015 Gorkha earthquake. Instead, a catastrophic flood occurred in 2021 that buried towns and agricultural land under up to 10 m of sediment. We show that intense storms remobilised glacial sediment from high elevations causing much a greater impact than flushing of earthquake-induced landslides.
Mohamad Nasr, Adele Johannot, Thomas Geay, Sebastien Zanker, Jules Le Guern, and Alain Recking
Earth Surf. Dynam., 12, 117–134, https://doi.org/10.5194/esurf-12-117-2024, https://doi.org/10.5194/esurf-12-117-2024, 2024
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Hydrophones are used to monitor sediment transport in the river by listening to the acoustic noise generated by particle impacts on the riverbed. However, this acoustic noise is modified by the river flow and can cause misleading information about sediment transport. This article proposes a model that corrects the measured acoustic signal. Testing the model showed that the corrected signal is better correlated with bedload flux in the river.
Byungho Kang, Rusty A. Feagin, Thomas Huff, and Orencio Durán Vinent
Earth Surf. Dynam., 12, 105–115, https://doi.org/10.5194/esurf-12-105-2024, https://doi.org/10.5194/esurf-12-105-2024, 2024
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We provide a detailed characterization of the frequency, intensity and duration of flooding events at a site along the Texas coast. Our analysis demonstrates the suitability of relatively simple wave run-up models to estimate the frequency and intensity of coastal flooding. Our results validate and expand a probabilistic model of coastal flooding driven by wave run-up that can then be used in coastal risk management in response to sea level rise.
Shunsuke Oya, Fumitoshi Imaizumi, and Shoki Takayama
Earth Surf. Dynam., 12, 67–86, https://doi.org/10.5194/esurf-12-67-2024, https://doi.org/10.5194/esurf-12-67-2024, 2024
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The monitoring of pore water pressure in fully and partly saturated debris flows was performed at Ohya landslide scar, central Japan. The pore water pressure in some partly saturated flows greatly exceeded the hydrostatic pressure. The depth gradient of the pore water pressure in the lower part of the flow was generally higher than the upper part of the flow. We conclude that excess pore water pressure is present in many debris flow surges and is an important mechanism in debris flow behavior.
Gabriele Barile, Marco Redolfi, and Marco Tubino
Earth Surf. Dynam., 12, 87–103, https://doi.org/10.5194/esurf-12-87-2024, https://doi.org/10.5194/esurf-12-87-2024, 2024
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River bifurcations often show the closure of one branch (avulsion), whose causes are still poorly understood. Our model shows that when one branch stops transporting sediments, the other considerably erodes and captures much more flow, resulting in a self-sustaining process. This phenomenon intensifies when increasing the length of the branches, eventually leading to branch closure. This work may help to understand when avulsions occur and thus to design sustainable river restoration projects.
Dieter Rickenmann
Earth Surf. Dynam., 12, 11–34, https://doi.org/10.5194/esurf-12-11-2024, https://doi.org/10.5194/esurf-12-11-2024, 2024
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Field measurements of the bedload flux with a high temporal resolution in a steep mountain stream were used to analyse the transport fluctuations as a function of the flow conditions. The disequilibrium ratio, a proxy for the solid particle concentration in the flow, was found to influence the sediment transport behaviour, and above-average disequilibrium conditions – associated with a larger sediment availability on the streambed – substantially affect subsequent transport conditions.
Byungho Kang, Rusty A. Feagin, Thomas Huff, and Orencio Durán Vinent
Earth Surf. Dynam., 12, 1–10, https://doi.org/10.5194/esurf-12-1-2024, https://doi.org/10.5194/esurf-12-1-2024, 2024
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Coastal flooding can cause significant damage to coastal ecosystems, infrastructure, and communities and is expected to increase in frequency with the acceleration of sea level rise. In order to respond to it, it is crucial to measure and model their frequency and intensity. Here, we show deep-learning techniques can be successfully used to automatically detect flooding events from complex coastal imagery, opening the way to real-time monitoring and data acquisition for model development.
Nil Carrion-Bertran, Albert Falqués, Francesca Ribas, Daniel Calvete, Rinse de Swart, Ruth Durán, Candela Marco-Peretó, Marta Marcos, Angel Amores, Tim Toomey, Àngels Fernández-Mora, and Jorge Guillén
EGUsphere, https://doi.org/10.5194/egusphere-2023-2721, https://doi.org/10.5194/egusphere-2023-2721, 2023
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The sensitivity to the wave and sea-level forcing sources in predicting a 6-month embayed beach evolution is assessed using two different morphodynamic models. After a successful model calibration using in-situ data, other sources are applied. The wave source choice is critical: hindcast data provide wrong results due to an angle bias whilst the correct dynamics is recovered with the wave conditions from an offshore buoy. The use of different sea-level sources gives no significant differences.
Judith Y. Zomer, Bart Vermeulen, and Antonius J. F. Hoitink
Earth Surf. Dynam., 11, 1283–1298, https://doi.org/10.5194/esurf-11-1283-2023, https://doi.org/10.5194/esurf-11-1283-2023, 2023
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Secondary bedforms that are superimposed on large, primary dunes likely play a large role in fluvial systems. This study demonstrates that they can be omnipresent. Especially during peak flows, they grow large and can have steep slopes, likely affecting flood risk and sediment transport dynamics. Primary dune morphology determines whether they continuously or intermittently migrate. During discharge peaks, the secondary bedforms can become the dominant dune scale.
Matthew C. Morriss, Benjamin Lehmann, Benjamin Campforts, George Brencher, Brianna Rick, Leif S. Anderson, Alexander L. Handwerger, Irina Overeem, and Jeffrey Moore
Earth Surf. Dynam., 11, 1251–1274, https://doi.org/10.5194/esurf-11-1251-2023, https://doi.org/10.5194/esurf-11-1251-2023, 2023
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In this paper, we investigate the 28 June 2022 collapse of the Chaos Canyon landslide in Rocky Mountain National Park, Colorado, USA. We find that the landslide was moving prior to its collapse and took place at peak spring snowmelt; temperature modeling indicates the potential presence of permafrost. We hypothesize that this landslide could be part of the broader landscape evolution changes to alpine terrain caused by a warming climate, leading to thawing alpine permafrost.
Christopher Tomsett and Julian Leyland
Earth Surf. Dynam., 11, 1223–1249, https://doi.org/10.5194/esurf-11-1223-2023, https://doi.org/10.5194/esurf-11-1223-2023, 2023
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Vegetation influences how rivers change through time, yet the way in which we analyse vegetation is limited. Current methods collect detailed data at the individual plant level or determine dominant vegetation types across larger areas. Herein, we use UAVs to collect detailed vegetation datasets for a 1 km length of river and link vegetation properties to channel evolution occurring within the study site, providing a new method for investigating the influence of vegetation on river systems.
Rabab Yassine, Ludovic Cassan, Hélène Roux, Olivier Frysou, and François Pérès
Earth Surf. Dynam., 11, 1199–1221, https://doi.org/10.5194/esurf-11-1199-2023, https://doi.org/10.5194/esurf-11-1199-2023, 2023
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Predicting river morphology evolution is very complicated, especially for mountain rivers with complex morphologies such as the Lac des Gaves reach in France. A 2D hydromorphological model was developed to reproduce the channel's evolution and provide reliable volumetric predictions while revealing the challenge of choosing adapted sediment transport and friction laws. Our model can provide decision-makers with reliable predictions to design suitable restoration measures for this reach.
Daisuke Harada and Shinji Egashira
Earth Surf. Dynam., 11, 1183–1197, https://doi.org/10.5194/esurf-11-1183-2023, https://doi.org/10.5194/esurf-11-1183-2023, 2023
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This paper proposes a method for describing large-wood behavior in terms of the convection equation and the storage equation, which are associated with active sediment erosion and deposition. Compared to the existing Lagrangian method, the proposed method can easily simulate the behavior of large wood in the flow field with active sediment transport. The method is applied to the flood disaster in the Akatani River in 2017, and the 2-D flood flow computations are successfully performed.
Hemanti Sharma and Todd A. Ehlers
Earth Surf. Dynam., 11, 1161–1181, https://doi.org/10.5194/esurf-11-1161-2023, https://doi.org/10.5194/esurf-11-1161-2023, 2023
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Seasonality in precipitation (P) and vegetation (V) influences catchment erosion (E), although which factor plays the dominant role is unclear. In this study, we performed a sensitivity analysis of E to P–V seasonality through numerical modeling. Our results suggest that P variations strongly influence seasonal variations in E, while the effect of seasonal V variations is secondary but significant. This is more pronounced in moderate and least pronounced in extreme environmental settings.
Eduardo Gomez-de la Peña, Giovanni Coco, Colin Whittaker, and Jennifer Montaño
Earth Surf. Dynam., 11, 1145–1160, https://doi.org/10.5194/esurf-11-1145-2023, https://doi.org/10.5194/esurf-11-1145-2023, 2023
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Predicting how shorelines change over time is a major challenge in coastal research. We here have turned to deep learning (DL), a data-driven modelling approach, to predict the movement of shorelines using observations from a camera system in New Zealand. The DL models here implemented succeeded in capturing the variability and distribution of the observed shoreline data. Overall, these findings indicate that DL has the potential to enhance the accuracy of current shoreline change predictions.
Christoph Rettinger, Mina Tabesh, Ulrich Rüde, Stefan Vollmer, and Roy M. Frings
Earth Surf. Dynam., 11, 1097–1115, https://doi.org/10.5194/esurf-11-1097-2023, https://doi.org/10.5194/esurf-11-1097-2023, 2023
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Packing models promise efficient and accurate porosity predictions of fluvial sediment deposits. In this study, three packing models were reviewed, calibrated, and validated. Only two of the models were able to handle the continuous and large grain size distributions typically encountered in rivers. We showed that an extension by a cohesion model is necessary and developed guidelines for successful predictions in different rivers.
Alexander A. Ermilov, Gergely Benkő, and Sándor Baranya
Earth Surf. Dynam., 11, 1061–1095, https://doi.org/10.5194/esurf-11-1061-2023, https://doi.org/10.5194/esurf-11-1061-2023, 2023
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A novel, artificial-intelligence-based riverbed sediment analysis methodology is introduced that uses underwater images to identify the characteristic sediment classes. The main novelties of the procedure are as follows: underwater images are used, the method enables continuous mapping of the riverbed along the measurement vessel’s route contrary to conventional techniques, the method is cost-efficient, and the method works without scaling.
Kelly M. Sanks, John B. Shaw, Samuel M. Zapp, José Silvestre, Ripul Dutt, and Kyle M. Straub
Earth Surf. Dynam., 11, 1035–1060, https://doi.org/10.5194/esurf-11-1035-2023, https://doi.org/10.5194/esurf-11-1035-2023, 2023
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River deltas encompass many depositional environments (like channels and wetlands) that interact to produce coastal environments that change through time. The processes leading to sedimentation in wetlands are often neglected from physical delta models. We show that wetland sedimentation constrains flow to the channels, changes sedimentation rates, and produces channels more akin to field-scale deltas. These results have implications for the management of these vulnerable coastal landscapes.
Katharina Wetterauer and Dirk Scherler
Earth Surf. Dynam., 11, 1013–1033, https://doi.org/10.5194/esurf-11-1013-2023, https://doi.org/10.5194/esurf-11-1013-2023, 2023
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In glacial landscapes, debris supply rates vary spatially and temporally. Rockwall erosion rates derived from cosmogenic 10Be concentrations in medial moraine debris at five Swiss glaciers around Pigne d'Arolla indicate an increase in erosion from the end of the Little Ice Age towards deglaciation but temporally more stable rates over the last ∼100 years. Rockwall erosion rates are higher where rockwalls are steep and north-facing, suggesting a potential slope and temperature control.
Sam Anderson, Nicole Gasparini, and Joel Johnson
Earth Surf. Dynam., 11, 995–1011, https://doi.org/10.5194/esurf-11-995-2023, https://doi.org/10.5194/esurf-11-995-2023, 2023
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We measured rock strength and amount of fracturing in the two different rock types, sandstones and carbonates, in Last Chance Canyon, New Mexico, USA. Where there is more carbonate bedrock, hills and channels steepen in Last Chance Canyon. This is because the carbonate-type bedrock tends to be more thickly bedded, is less fractured, and is stronger. The carbonate bedrock produces larger boulders than the sandstone bedrock, which can protect the more fractured sandstone bedrock from erosion.
Jens M. Turowski, Gunnar Pruß, Anne Voigtländer, Andreas Ludwig, Angela Landgraf, Florian Kober, and Audrey Bonnelye
Earth Surf. Dynam., 11, 979–994, https://doi.org/10.5194/esurf-11-979-2023, https://doi.org/10.5194/esurf-11-979-2023, 2023
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Rivers can cut into rocks, and their strength modulates the river's erosion rates. Yet, which properties of the rock control its response to erosive action is poorly understood. Here, we describe parallel experiments to measure rock erosion rates under fluvial impact erosion and the rock's geotechnical properties such as fracture strength, elasticity, and density. Erosion rates vary over a factor of a million between different rock types. We use the data to improve current theory.
Koji Ohata, Hajime Naruse, and Norihiro Izumi
Earth Surf. Dynam., 11, 961–977, https://doi.org/10.5194/esurf-11-961-2023, https://doi.org/10.5194/esurf-11-961-2023, 2023
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We investigated the influence of sediment transport modes on the formation of bedforms using theoretical analysis. The results of the theoretical analysis were verified with published data of plane beds obtained by fieldwork and laboratory experiments. We found that suspended sand particles can promote the formation of plane beds on a fine-grained bed, which suggests that the presence of suspended particles suppresses the development of dunes under submarine sediment-laden gravity currents.
Matan Ben-Asher, Florence Magnin, Sebastian Westermann, Josué Bock, Emmanuel Malet, Johan Berthet, Ludovic Ravanel, and Philip Deline
Earth Surf. Dynam., 11, 899–915, https://doi.org/10.5194/esurf-11-899-2023, https://doi.org/10.5194/esurf-11-899-2023, 2023
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Quantitative knowledge of water availability on high mountain rock slopes is very limited. We use a numerical model and field measurements to estimate the water balance at a steep rock wall site. We show that snowmelt is the main source of water at elevations >3600 m and that snowpack hydrology and sublimation are key factors. The new information presented here can be used to improve the understanding of thermal, hydrogeological, and mechanical processes on steep mountain rock slopes.
Jessica Droujko, Srividya Hariharan Sudha, Gabriel Singer, and Peter Molnar
Earth Surf. Dynam., 11, 881–897, https://doi.org/10.5194/esurf-11-881-2023, https://doi.org/10.5194/esurf-11-881-2023, 2023
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We combined data from satellite images with data measured from a kayak in order to understand the propagation of fine sediment in the Vjosa River. We were able to find some storm-activated and some permanent sources of sediment. We also estimated how much fine sediment is carried into the Adriatic Sea by the Vjosa River: approximately 2.5 Mt per year, which matches previous findings. With our work, we hope to show the potential of open-access satellite images.
Kate C. P. Leary, Leah Tevis, and Mark Schmeeckle
Earth Surf. Dynam., 11, 835–847, https://doi.org/10.5194/esurf-11-835-2023, https://doi.org/10.5194/esurf-11-835-2023, 2023
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Despite the importance of bedforms (e.g., ripples, dunes) to sediment transport, the details of sediment transport on a sub-bedform scale are poorly understood. This paper investigates sediment transport in the downstream and cross-stream directions over bedforms with straight crests. We find that the patterns of bedload transport are highly variable on the sub-bedform scale, which is important for our understanding of the evolution of bedforms with complex crest geometries.
Paul A. Carling, John D. Jansen, Teng Su, Jane Lund Andersen, and Mads Faurschou Knudsen
Earth Surf. Dynam., 11, 817–833, https://doi.org/10.5194/esurf-11-817-2023, https://doi.org/10.5194/esurf-11-817-2023, 2023
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Many steep glaciated rock walls collapsed when the Ice Age ended. How ice supports a steep rock wall until the ice decays is poorly understood. A collapsed rock wall was surveyed in the field and numerically modelled. Cosmogenic exposure dates show it collapsed and became ice-free ca. 18 ka ago. The model showed that the rock wall failed very slowly because ice was buttressing the slope. Dating other collapsed rock walls can improve understanding of how and when the last Ice Age ended.
Paul A. Jarvis, Clement Narteau, Olivier Rozier, and Nathalie M. Vriend
Earth Surf. Dynam., 11, 803–815, https://doi.org/10.5194/esurf-11-803-2023, https://doi.org/10.5194/esurf-11-803-2023, 2023
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Sand dune migration velocity is inversely proportional to dune size. Consequently, smaller, faster dunes can collide with larger, slower downstream dunes. Such collisions can result in either coalescence or ejection, whereby the dunes exchange mass but remain separate. Our numerical simulations show that the outcome depends probabilistically on the dune size ratio, which we describe through an empirical function. Our numerical predictions compare favourably against experimental observations.
Adrian Ringenbach, Peter Bebi, Perry Bartelt, Andreas Rigling, Marc Christen, Yves Bühler, Andreas Stoffel, and Andrin Caviezel
Earth Surf. Dynam., 11, 779–801, https://doi.org/10.5194/esurf-11-779-2023, https://doi.org/10.5194/esurf-11-779-2023, 2023
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Swiss researchers carried out repeated rockfall experiments with rocks up to human sizes in a steep mountain forest. This study focuses mainly on the effects of the rock shape and lying deadwood. In forested areas, cubic-shaped rocks showed a longer mean runout distance than platy-shaped rocks. Deadwood especially reduced the runouts of these cubic rocks. The findings enrich standard practices in modern rockfall hazard zoning assessments and strongly urge the incorporation of rock shape effects.
Colin K. Bloom, Corinne Singeisen, Timothy Stahl, Andrew Howell, and Chris Massey
Earth Surf. Dynam., 11, 757–778, https://doi.org/10.5194/esurf-11-757-2023, https://doi.org/10.5194/esurf-11-757-2023, 2023
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Earthquakes can cause damaging coastal cliff retreat, but we have a limited understanding of how these infrequent events influence multidecadal retreat. This makes hazard planning a challenge. In this study, we use historic aerial images to measure coastal cliff-top retreat at a site in New Zealand. We find that earthquakes account for close to half of multidecadal retreat at this site, and our results have helped us to develop tools for estimating the influence of earthquakes at other sites.
Rishitosh K. Sinha, Dwijesh Ray, Tjalling De Haas, Susan J. Conway, and Axel Noblet
Earth Surf. Dynam., 11, 713–730, https://doi.org/10.5194/esurf-11-713-2023, https://doi.org/10.5194/esurf-11-713-2023, 2023
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Our detailed investigation of Martian gullies formed in different substrates in 29 craters distributed between 30°–75° S latitude suggests that they can be differentiated from one another in terms of (1) morphology and length of alcoves and (2) mean gradient of the gully fans. The comparison between the Melton ratio, alcove length, and fan gradient of Martian and terrestrial gullies suggests that Martian gullies were likely formed by terrestrial debris-flow-like processes in the past.
Christopher J. Skinner and Thomas J. Coulthard
Earth Surf. Dynam., 11, 695–711, https://doi.org/10.5194/esurf-11-695-2023, https://doi.org/10.5194/esurf-11-695-2023, 2023
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Landscape evolution models allow us to simulate the way the Earth's surface is shaped and help us to understand relevant processes, in turn helping us to manage landscapes better. The models typically represent the land surface using a grid of square cells of equal size, averaging heights in those squares. This study shows that the size chosen by the modeller for these grid cells is important, with larger sizes making sediment output events larger but less frequent.
Cited articles
Ad-hoc-AG Boden: Bodenkundliche Kartieranleitung, 5th Edn., Schweizerbart'sche, Stuttgart, ISBN 9783510959204, 2005.
Ammann, M., Böll, A., Rickli, C., Speck, T., and Holdenrieder, O.:
Significance of tree root decomposition for shallow landslides, Forest Snow
Landsc. Res., 82, 79–94, 2009.
Bayerisches Landesamt für Umwelt: digitale Geologische Karte 1:25.000 (dGK25), Nr. 6034 Mistelgau, https://www.lfu.bayern.de/index.htm (last access: 30 January 2023), 2021a.
Bayerisches Landesamt für Umwelt: digitale Geologische Karte 1:25.000 (dGK25), Nr. 6035 Bayreuth, https://www.lfu.bayern.de/index.htm (last access: 30 January 2023), 2021b.
Bayerisches Landesamt für Umwelt: digitale Geologische Karte 1:25.000 (dGK25), Nr. 5934 Thurnau, https://www.lfu.bayern.de/index.htm (last access: 30 January 2023), 2021c.
Bayerisches Landesamt für Digitslisierung, Breitband und Vermessung: Digitales Geländemodell (DGM), Bayerisches Landesamt für Digitslisierung, Breitband und Vermessung [data set], https://www.ldbv.bayern.de/produkte/3dprodukte/gelaende.html (last access: 30 January 2023), 2020.
Bayerisches Landesamt für Umwelt: Georisk objects, https://www.lfu.bayern.de/umweltdaten/geodatendienste/pretty_downloaddienst.htm?dld=georisiken (last access: 30 January 2023), 2020.
Bischetti, G. B., Chiaradia, E. A., Epis, T., and Morlotti, E.: Root cohesion of forest species in the Italian Alps, Plant Soil, 324, 71–89,
https://doi.org/10.1007/s11104-009-9941-0, 2009.
Bischetti, G. B., Bassanelli, C., Chiaradia, E. A., Minotta, G., and Vergani, C.: The effect of gap openings on soil reinforcement in two conifer stands in northern Italy, Forest Ecol. Manage., 359, 286–299,
https://doi.org/10.1016/j.foreco.2015.10.014, 2016.
Boley Geotechnik: Trassenverschiebung aus Rutschhangbereich bei Thurnau,
Geotechnischer Bericht zum Feststellungsentwurf, Report, München, 2018.
Borga, M., Tonelli, F., d. Fontana, G., and Cazorzi, F.: Evaluating the
influence of forest roads on shallow landsliding, Ecol. Model., 187, 85–98, https://doi.org/10.1016/j.ecolmodel.2005.01.055, 2005.
Bromhead, E. N.: Reflections on the residual strength of clay soils, with
special reference to bedding-controlled landslides, Q. J. Eng. Geol. Hydrogeol., 46, 132–155, https://doi.org/10.1144/qjegh2012-078, 2013.
Chambers, J. E., Wilkinson, P. B., Kuras, O., Ford, J. R., Gunn, D. A., Meldrum, P. I., Pennington, C. V. L., Weller, A. L., Hobbs, P. R. N., and
Ogilvy, R. D.: Three-dimensional geophysical anatomy of an active landslide in Lias Group mudrocks, Cleveland Basin, UK, Geomorphology, 125, 472–484,
https://doi.org/10.1016/j.geomorph.2010.09.017, 2011.
Chandler, R. J.: Clay Sediments in Depositional Basins: the Geotechnical
Cycle, Q. J. Eng. Geol. Hydrogeol., 33, 7–39, https://doi.org/10.1144/qjegh.33.1.7, 2000.
Cohen, D. and Schwarz, M.: Tree-root control of shallow landslides, Earth Surf. Dynam. 5, 451–477, https://doi.org/10.5194/esurf-5-451-2017, 2017.
Crozier, M. J.: Deciphering the effect of climate change on landslide
activity: A review, Geomorphology, 124, 260–267, https://doi.org/10.1016/j.geomorph.2010.04.009, 2010.
Debel, A., Meier, W. J.-H., and Bräuning, A.: Climate Signals for Growth
Variations of F. sylvatica, P. abies, and P. sylvestris in Southeast Germany
over the Past 50 Years, Forests, 12, 1433, https://doi.org/10.3390/f12111433, 2021.
Deljouei, A., Abdi, E., Schwarz, M., Majnounian, B., Sohrabi, H., and Dumroese, R. K.: Mechanical Characteristics of the Fine Roots of Two Broadleaved Tree Species from the Temperate Caspian Hyrcanian Ecoregion,
Forests, 11, 345, https://doi.org/10.3390/f11030345, 2020.
Dorren, L. K. A., Berger, F., le Hir, C., Mermin, E., and Tardif, P.: Mechanisms, effects and management implications of rockfall in forests,
Forest Ecol. Manage., 215, 183–195, https://doi.org/10.1016/j.foreco.2005.05.012, 2005.
Draebing, D., Gebhard, T., and Pheiffer, M.: Geophysical and vegetation data on three landslides in the Franconian Jura, figshare [data set], https://doi.org/10.6084/m9.figshare.20368464.v2, 2023.
Duszyński, F., Migoń, P., and Strzelecki, M. C.: Escarpment retreat
in sedimentary tablelands and cuesta landscapes – Landforms, mechanisms and
patterns, Earth-Sci. Rev., 196, 102890, https://doi.org/10.1016/j.earscirev.2019.102890, 2019.
DWD Climate Data Center: Sum of annual precipitation at Heinersreuth-Vollhoff between 1991 and 2020, 2.2-v2206, https://cdc.dwd.de/portal/ (last access: 5 May 2022), 2022a.
DWD Climate Data Center: Annual air temperature at Heinersreuth-Vollhoff between 1991 and 2020, 2.2-v2206, https://cdc.dwd.de/portal/ (last access: 5 May 2022), 2022b.
Emmert, U.: Geologische Karte von Bayern 1:25 000, Erläuterungen zum
Blatt Nr. 6035 Bayreuth, Bayerisches Geologisches Landesamt, München,
1977.
Estrella, N. and Menzel, A.: Recent and future climate extremes arising from changes to the bivariate distribution of temperature and precipitation in Bavaria, Germany, Int. J. Climatol., 33, 1687–1695, https://doi.org/10.1002/joc.3542, 2013.
Fellenius, W.: Calculation of stability of earth dam, Transactions, in: 2nd Congress Large Dams, 7–12 September 1936, Washington, DC, 445–462, 1936.
Genet, M., Stokes, A., Salin, F., Mickovski, S. B., Fourcaud, T., Dumail, J.-F., and van Beek, R.: The Influence of Cellulose Content on Tensile Strength in Tree Roots, Plant Soil, 278, 1–9, https://doi.org/10.1007/s11104-005-8768-6, 2005.
Genet, M., Kokutse, N., Stokes, A., Fourcaud, T., Cai, X., Ji, J., and Mickovski, S.: Root reinforcement in plantations of Cryptomeria japonica D. Don: effect of tree age and stand structure on slope stability, Forest
Ecol. Manage., 256, 1517–1526, https://doi.org/10.1016/j.foreco.2008.05.050, 2008.
Genet, M., Stokes, A., Fourcaud, T., and Norris, J. E.: The influence of
plant diversity on slope stability in a moist evergreen deciduous forest, Ecol. Eng., 36, 265–275, https://doi.org/10.1016/j.ecoleng.2009.05.018, 2010.
Giadrossich, F., Schwarz, M., Marden, M., Marrosu, R., and Phillips, C.:
Minimum representative root distribution sampling for calculating slope
stability in Pinus radiata D. Don plantations in New Zealand, NZ J. Forest. Sci., 50, 5, https://doi.org/10.33494/nzjfs502020x68x, 2020.
Glade, R. C., Anderson, R. S., and Tucker, G. E.: Block-controlled hillslope
form and persistence of topography in rocky landscapes, Geology, 45, 311–314, https://doi.org/10.1130/g38665.1, 2017.
Haas, J., Schack-Kirchner, H., and Lang, F.: Modeling soil erosion after
mechanized logging operations on steep terrain in the Northern Black Forest,
Germany, Eur. J. Forest Res., 139, 549–565, https://doi.org/10.1007/s10342-020-01269-5, 2020.
Hales, T. C.: Modelling biome-scale root reinforcement and slope stability,
Earth Surf. Proc. Land., 43, 2157–2166, https://doi.org/10.1002/esp.4381, 2018.
Hales, T. C. and Miniat, C. F.: Soil moisture causes dynamic adjustments to
root reinforcement that reduce slope stability, Earth Surf. Proc. Land., 42, 803–813, https://doi.org/10.1002/esp.4039, 2017.
Hales, T. C., Cole-Hawthorne, C., Lovell, L., and Evans, S. L.: Assessing the accuracy of simple field based root strength measurements, Plant Soil, 372, 553–565, https://doi.org/10.1007/s11104-013-1765-2, 2013.
Hoffmann, C. W. and Usoltsev, V. A.: Modelling root biomass distribution in
Pinus sylvestris forests of the Turgai Depression of Kazakhstan, Forest Ecol. Manage., 149, 103–114, https://doi.org/10.1016/S0378-1127(00)00548-X, 2001.
Hutchinson, J. N.: Theme lecture: Periglacial and slope processes, Geol. Soc. Lond. Spec. Publ., 7, 283–331, https://doi.org/10.1144/gsl.Eng.1991.007.01.27, 1991.
Ikari, M. J. and Kopf, A. J.: Cohesive strength of clay-rich sediment, Geophys. Res. Lett., 38, L16309, https://doi.org/10.1029/2011GL047918, 2011.
Jäger, D., Sandmeier, C., Schwindt, D., and Terhorst, B.: Geomorphological and geophysical analyses in a landslide area near Ebermannstadt, Northern Bavaria, E & G Quaternary Sci. J., 62, 150–161,
https://doi.org/10.3285/eg.62.2.06, 2013.
Ji, J., Kokutse, N., Genet, M., Fourcaud, T., and Zhang, Z.: Effect of spatial variation of tree root characteristics on slope stability. A case
study on Black Locust (Robinia pseudoacacia) and Arborvitae (Platycladus
orientalis) stands on the Loess Plateau, China, Catena, 92, 139–154,
https://doi.org/10.1016/j.catena.2011.12.008, 2012.
Kany, M.,and Hammer, H.: Statistische Untersuchungen von Rutschungen im
nordbayerischen Deckgebirge, in: Ingenieurgeologische Probleme im Grenzbereich zwischen Locker-und Festgesteinen, edited by: Heitfeld, K.-H., Springer, Berlin, Heidelberg, Germany, 256–265, https://doi.org/10.1007/978-3-642-70452-9_17, 1985.
Keenan, R. J.: Climate change impacts and adaptation in forest management: a
review, Ann. Forest Sci., 72, 145–167, https://doi.org/10.1007/s13595-014-0446-5, 2015.
Kutschera, L. and Lichtenegger, E.: Wurzelatlas mitteleuropäischer
Waldbäume und Sträucher, 2nd Edn., Leopold Stocker Verlag, Graz,
ISBN 978-3-7020-0928-1, 2002.
Lapenna, V., Lorenzo, P., Perrone, A., Piscitelli, S., Rizzo, E., and Sdao,
F.: 2D electrical resistivity imaging of some complex landslides in the Lucanian Apennine chain, southern Italy, Geophysics, 70, B11–B18, https://doi.org/10.1190/1.1926571, 2005.
Loke, M. and Barker, R.: Least-squares deconvolution of apparent resistivity pseudosections, Geophysics, 60, 1682–1690, https://doi.org/10.1190/1.1443900, 1995.
Lwila, A. S., Mund, M., Ammer, C., and Glatthorn, J.: Site conditions more
than species identity drive fine root biomass, morphology and spatial distribution in temperate pure and mixed forests, Forest Ecol. Manage., 499, 119581, https://doi.org/10.1016/j.foreco.2021.119581, 2021.
McColl, S. T.: Chapter 2 – Landslide causes and triggers, in: Landslide
Hazards, Risks, and Disasters, 2nd Edn., edited by: Davies, T., Rosser, N., and Shroder, J. F., Elsevier, 13–41, https://doi.org/10.1016/B978-0-12-818464-6.00011-1, 2022.
Meyer, K. F. and Schmidt-Kaler, H.: Jura, in: Erläuterungen zur Geologischen Karte von Bayern 1:500 000, 4th Edn., Bayerisches Geologisches Landesamt, München, 90–111, 1996.
Nordmann, B., Göttlein, A., and Binder, F.: Einfluss unterschiedlicher
Waldbestockung auf die Abflussbildung – ein Beispiel aus einem
Wassereinzugsgebiet im Frankenwald, Hydrol. Wasserbewirt., 53, 80–95, 2009.
Pain, C. F.: Scarp retreat and slope development near picton, New South Wales, Australia, Catena, 13, 227–239, https://doi.org/10.1016/S0341-8162(86)80015-7, 1986.
Pawlik, Ł. and Šamonil, P.: Soil creep: The driving factors, evidence
and significance for biogeomorphic and pedogenic domains and systems – A
critical literature review, Earth-Sci. Rev., 178, 257–278, https://doi.org/10.1016/j.earscirev.2018.01.008, 2018.
Perkins, J. P., Reid, M. E., and Schmidt, K. M.: Control of landslide volume
and hazard by glacial stratigraphic architecture, northwest Washington State, USA, Geology, 45, 1139–1142, https://doi.org/10.1130/g39691.1, 2017.
Perrone, A., Lapenna, V., and Piscitelli, S.: Electrical resistivity tomography technique for landslide investigation: A review, Earth-Sci. Rev.,
135, 65–82, https://doi.org/10.1016/j.earscirev.2014.04.002, 2014.
Peterek, A. and Schröder, B.: Geomorphologic evolution of the cuesta
landscapes around the northern Franconian Alb – review and synthesis, Z. Geomorphol., 54, 305–345, https://doi.org/10.1127/0372-8854/2010/0054-0037, 2010.
Phillips, C., Hales, T., Smith, H., and Basher, L.: Shallow landslides and
vegetation at the catchment scale: A perspective, Ecol. Eng., 173, 106436, https://doi.org/10.1016/j.ecoleng.2021.106436, 2021.
Roering, J. J., Schmidt, K. M., Stock, J. D., Dietrich, W. E., and Montgomery, D. R.: Shallow landsliding, root reinforcement, and the spatial
distribution of trees in the Oregon Coast Range, Can. Geotech. J., 40, 237–253, https://doi.org/10.1139/t02-113, 2003.
Rogers, N. W. and Selby, M. J.: Mechanisms of Shallow Translational Landsliding during Summer Rainstorms: North Island, New Zealand, Geograf.
Ann. A, 62, 11–21, https://doi.org/10.2307/520448, 1980.
Schmidt, K.-H. and Beyer, I.: High-magnitude landslide events on a limestone-scarp in central Germany: morphometric characteristics and climatic controls, Geomorphology, 49, 323–342, https://doi.org/10.1016/S0169-555X(02)00193-9, 2003.
Schmidt, K. M., Roering, J. J., Stock, J. D., Dietrich, W. E., Montgomery, D. R., and Schaub, T.: The variability of root cohesion as an influence on
shallow landslide susceptibility in the Oregon Coast Range, Can. Geotech. J., 38, 995–1024, https://doi.org/10.1139/t01-031, 2001.
Schwarz, M., Lehmann, P., and Or, D.: Quantifying lateral root reinforcement
in steep slopes – from a bundle of roots to tree stands, Earth Surf. Proc. Land., 35, 354–367, https://doi.org/10.1002/esp.1927, 2010a.
Schwarz, M., Preti, F., Giadrossich, F., Lehmann, P., and Or, D.: Quantifying the role of vegetation in slope stability: A case study in Tuscany (Italy), Ecol. Eng., 36, 285–291, https://doi.org/10.1016/j.ecoleng.2009.06.014, 2010b.
Seidl, R., Thom, D., Kautz, M., Martin-Benito, D., Peltoniemi, M., Vacchiano, G., Wild, J., Ascoli, D., Petr, M., Honkaniemi, J., Lexer, M. J., Trotsiuk, V., Mairota, P., Svoboda, M., Fabrika, M., Nagel, T. A., and Reyer, C. P. O.: Forest disturbances under climate change, Nat. Clim. Change, 7, 395–402, https://doi.org/10.1038/nclimate3303, 2017.
Selby, M. J.: Hillslope Materials and Processes, Oxford University Press,
Oxford, ISBN 10:0198741839, ISBN 13:978-0198741831, 1993.
Sidle, R. and Ochiai, H.: Processes, prediction, and land use, in: Water resources monograph, American Geophysical Union, Washington, https://doi.org/10.1029/WM018, 2006.
Sidle, R. C. and Bogaard, T. A.: Dynamic earth system and ecological controls of rainfall-initiated landslides, Earth-Sci. Rev., 159, 275–291,
https://doi.org/10.1016/j.earscirev.2016.05.013, 2016.
Siewert, M. B., Krautblatter, M., Christiansen, H. H., and Eckerstorfer, M.:
Arctic rockwall retreat rates estimated using laboratory-calibrated ERT
measurements of talus cones in Longyeardalen, Svalbard, Earth Surf. Proc. Land., 37, 1542–1555, https://doi.org/10.1002/esp.3297, 2012.
Skempton, A. and De Lory, F.: Stability of natural slopes in London clay, in:
Proceedings of the 4th International Conference on Soil Mechanics, 2, 12–24 August 1957, London, 378–381, 1957.
Skempton, A. W.: Long-Term Stability of Clay Slopes, Géotechnique, 14,
77–102, https://doi.org/10.1680/geot.1964.14.2.77, 1964.
Skempton, A. W.: Residual strength of clays in landslides, folded strata and
the laboratory, Géotechnique, 35, 3–18, https://doi.org/10.1680/geot.1985.35.1.3, 1985.
Spreafico, M. C., Cervi, F., Francioni, M., Stead, D., and Borgatti, L.: An
investigation into the development of toppling at the edge of fractured rock
plateaux using a numerical modelling approach, Geomorphology, 288, 83–98,
https://doi.org/10.1016/j.geomorph.2017.03.023, 2017.
Stokes, A., Atger, C., Bengough, A. G., Fourcaud, T., and Sidle, R. C.:
Desirable plant root traits for protecting natural and engineered slopes
against landslides, Plant Soil, 324, 1–30, https://doi.org/10.1007/s11104-009-0159-y, 2009.
Stone, E. L. and Kalisz, P. J.: On the maximum extent of tree roots, Forest
Ecol. Manage., 46, 59–102, https://doi.org/10.1016/0378-1127(91)90245-Q, 1991.
Terwilliger, V. J. and Waldron, L. J.: Effects of root reinforcement on
soil-slip patterns in the Transverse Ranges of southern California, GSA Bull., 103, 775–785, https://doi.org/10.1130/0016-7606(1991)103<0775:Eorros>2.3.Co;2, 1991.
Thiebes, B., Bell, R., Glade, T., Jäger, S., Mayer, J., Anderson, M., and Holcombe, L.: Integration of a limit-equilibrium model into a landslide early warning system, Landslides, 11, 859–875, https://doi.org/10.1007/s10346-013-0416-2, 2014.
Uhlemann, S., Chambers, J., Wilkinson, P., Maurer, H., Merritt, A., Meldrum,
P., Kuras, O., Gunn, D., Smith, A., and Dijkstra, T.: Four-dimensional imaging of moisture dynamics during landslide reactivation, J. Geophys. Res.-Earth, 122, 398–418, https://doi.org/10.1002/2016JF003983, 2017.
van Beek, R., Cammeraat, E., Andreu, V., Mickovski, S. B., and Dorren, L.:
Hillslope Processes: Mass Wasting, Slope Stability and Erosion, in: Slope Stability and Erosion Control: Ecotechnological Solutions, edited by:
Norris, J. E., Stokes, A., Mickovski, S. B., Cammeraat, E., van Beek, R.,
Nicoll, B. C., and Achim, A., Springer Netherlands, Dordrecht, 17–64,
https://doi.org/10.1007/978-1-4020-6676-4_3, 2008.
Van Den Eeckhaut, M., Verstraeten, G., and Poesen, J.: Morphology and internal structure of a dormant landslide in a hilly area: The Collinabos
landslide (Belgium), Geomorphology, 89, 258–273, https://doi.org/10.1016/j.geomorph.2006.12.005, 2007.
Van Den Eeckhaut, M., Muys, B., Van Loy, K., Poesen, J., and Beeckman, H.:
Evidence for repeated re-activation of old landslides under forest, Earth
Surf. Proc. Land., 34, 352–365, https://doi.org/10.1002/esp.1727, 2009.
Vergani, C. and Graf, F.: Soil permeability, aggregate stability and root growth: a pot experiment from a soil bioengineering perspective, Ecohydrology, 9, 830–842, https://doi.org/10.1002/eco.1686, 2016.
Vergani, C., Chiaradia, E. A., Bassanelli, C., and Bischetti, G. B.: Root
strength and density decay after felling in a Silver Fir-Norway Spruce stand
in the Italian Alps, Plant Soil, 377, 63–81, https://doi.org/10.1007/s11104-013-1860-4, 2014.
Vergani, C., Schwarz, M., Soldati, M., Corda, A., Giadrossich, F., Chiaradia, E. A., Morando, P., and Bassanelli, C.: Root reinforcement dynamics in subalpine spruce forests following timber harvest: a case study in Canton Schwyz, Switzerland, Catena, 143, 275–288, https://doi.org/10.1016/j.catena.2016.03.038, 2016.
Vergani, C., Giadrossich, F., Buckley, P., Conedera, M., Pividori, M., Salbitano, F., Rauch, H. S., Lovreglio, R., and Schwarz, M.: Root reinforcement dynamics of European coppice woodlands and their effect on
shallow landslides: A review, Earth-Sci. Rev., 167, 88–102, https://doi.org/10.1016/j.earscirev.2017.02.002, 2017.
Waldron, L. J.: The Shear Resistance of Root-Permeated Homogeneous and Stratified Soil, Soil Sci. Soc. Am. J., 41, 843–849,
https://doi.org/10.2136/sssaj1977.03615995004100050005x, 1977.
Wilfing, L., Meier, C., Boley, C., and Pfeifer, T.: Monitoring and analysis of a large mass movement area in clay endangering a motorway in Bavaria, Germany, in: Geomechanics and Geodynamics of Rock Masses Selected Papers from the 2018 European Rock Mechanics Symposium, edited by: Litvinenko, V., Routledge, London, UK, 329–334, ISBN 9781138327481, 2018.
Wu, T. H.: Effect of vegetation on slope stability, Transport. Res. Rec., 965, 37–46, 1984.
Wu, T. H., McKinnell Iii, W. P., and Swanston, D. N.: Strength of tree roots
and landslides on Prince of Wales Island, Alaska, Can. Geotech. J., 16, 19–33, https://doi.org/10.1139/t79-003, 1979.
Young, R. W. and Wray, R. A. L.: Contribution to the Theory of Scarpland Development from Observations in Central Queensland, Australia, J. Geol., 108, 705–719, https://doi.org/10.1086/317949, 2000.
Young, R. W.: Blockgliding in sandstones of the southern Sydney Basin, in:
Aspects of Australian sandstone landscapes, Special Publication 1, edited by: Young, R. W. and Nanson, G. C., Australian and New Zealand Geomorphology Group, 31–38, ISBN 0864180012, 1983.
Zhu, J., Wang, Y., Wang, Y., Mao, Z., and Langendoen, E. J.: How does root
biodegradation after plant felling change root reinforcement to soil?, Plant
Soil, 446, 211–227, https://doi.org/10.1007/s11104-019-04345-x, 2020.
Ziemer, R. R.: The role of vegetation in the stability of forested slopes, in: vol. I, Proceedings of the International Union of Forestry Research Organizations, XVII World Congress, 6–17 September 1981, Kyoto, Japan, 297–308, 1981.
Short summary
Scarpland formation produced low-inclined slopes susceptible to deep-seated landsliding on geological scales. These landslide-affected slopes are often used for forestry activities today, and interaction between geology and vegetation controls shallow landsliding. Our data show that Feuerletten clays control deep-seated landsliding processes that can be reactivated. When trees are sufficiently dense to provide lateral root cohesion, trees can prevent the occurrence of shallow landslides.
Scarpland formation produced low-inclined slopes susceptible to deep-seated landsliding on...
