Article
Geosciences, Multidisciplinary
Paul Alessio, Thomas Dunne, Kristin Morell
Summary: The study focused on the erosion process after wildfires and its impact on debris flows, highlighting rills as the dominant form of erosion and shale hillslopes as the main source of slurry for debris flows.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Water Resources
Liam C. Stiefel, Susannah C. Cooley, Bradley G. Johnson
Summary: Wildfires in mountainous regions can enhance soil hydrophobicity and increase runoff, but the recovery process can be relatively fast. Burned areas may have decreased organic surface horizons and reduced soil moisture storage capacity, leading to differences in peak discharges.
HYDROLOGICAL PROCESSES
(2021)
Article
Forestry
Kevin J. Badik, Codie Wilson, Stephanie K. Kampf, Laurel Saito, Louis Provencher, Sarah Byer, Mickey Hazelwood
Summary: A new method combining erosion models and state-and-transition simulation models has been introduced to estimate post-fire sediment yield and identify high-risk areas. This method can be applied at three scales - large watershed, subwatershed, and single fire event, to help land managers prioritize pre-fire restoration practices or post-fire rehabilitation actions.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Environmental Sciences
Zhang Li-ting, Shuai Fang, Chen Li, Huang Yan-he, Lin Jin-shi, Zhang Yue, Ge Hong-li, Jiang Fang-shi
Summary: This study investigated the effects of gravel content on the soil detachment capacity of colluvial deposits and its hydrodynamic mechanism. The results showed that gravel content is the primary factor influencing detachment capacity, followed by discharge and slope. Additionally, gravel can influence detachment capacity by changing soil properties, and gravel content also affects the relationship between detachment capacity and hydrodynamic parameters.
JOURNAL OF MOUNTAIN SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Tereza Zadorova, Vit Penizek, Lenka Lisa, Magdalena Koubova, Daniel Zizala, Vaclav Tejnecky, Ondrej Drabek, Radka Kodesova, Miroslav Fer, Ales Klement, Antonin Nikodem, Jessica Reyes Rojas, Petra Vokurkova, Lenka Pavlu, Ales Vanek, Piotr Moska
Summary: This study provides a detailed analysis of colluvial profiles in two different regions of Czechia, focusing on the stratigraphy, properties, and development of these profiles. The findings indicate that rapid, recent sedimentation occurs in the toe-slope areas, while gradual and older sedimentation is characteristic of the side-valleys. The study also identifies periods of increased erosion activity associated with human impact and climatic events.
Article
Soil Science
Cristina Fernandez, Teresa Fonturbel, Jose A. Vega
Summary: Post-fire salvage logging can reduce soil erosion, with slash cover mitigating erosion without negative effects on soil properties and vegetation recovery. However, the recovery of soil microbial and enzymatic attributes appears slow compared to vegetation recovery, warranting further research.
Article
Geosciences, Multidisciplinary
Tereza Zadorova, Vit Penizek, Magdalena Koubova, Lenka Lisa, Lenka Pavlu, Vaclav Tejnecky, Daniel Zizala, Ondrej Drabek, Karel Nemecek, Ales Vanek, Radka Kodesova
Summary: This study focuses on the post-depositional evolution of colluvial profiles in two different regions of Czechia. The study used a multi-proxy approach to analyze clay mineralogy, micromorphology, humus quality, and geochemical parameters to differentiate between inherited and in-situ developed pedogenetic features. The results showed distinct differences in pedogenetic features between individual plots and colluvial positions.
Article
Geosciences, Multidisciplinary
Luke A. McGuire, Craig Rasmussen, Ann M. Youberg, Jonathan Sanderman, Brendan Fenerty
Summary: Wildfires can alter hydrologic and geomorphic systems, leading to increased runoff and erosion compared to unburned areas, which can result in substantial lateral redistribution of pyrogenic carbon (PyC) through overland flow. The spatial distribution of PyC is influenced by terrain attributes such as slope, unit stream power, and soil burn severity, with runoff-driven erosion being a dominant control factor. In areas burned at moderate to high severity, intense runoff and lack of canopy cover can lead to erosion of PyC regardless of slope and landscape position.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2021)
Article
Soil Science
Pengzhi Zhao, Sebastian Doetterl, Zhengang Wang, Alison M. Hoyt, Enheng Wang, Hanqing Yu, Laura Quijano, Daniel J. Fallu, Antony G. Brown, Johan Six, Kristof Van Oost
Summary: This study compares the dominant controls on SOC stability in colluvial and non-colluvial soils and finds that the soil accretion rate is the key control factor for colluvial SOC stability in agricultural systems. The results highlight the importance of understanding the mechanisms underlying colluvial SOC stability as it differs from that in non-colluvial soils.
EUROPEAN JOURNAL OF SOIL SCIENCE
(2022)
Article
Chemistry, Organic
Jiaqi Lyu, Richiro Ushimaru, Ikuro Abe
Summary: This study describes the early stages of Tabtoxin biosynthesis and identifies the roles of TblA and TblD in the process through gene deletion and in vitro biochemical assays, providing insights into the progression of these reactions.
Article
Water Resources
Michael Gieschen, Peter Nelson
Summary: Stream channel incision and deposition after wildfire can impact runoff mechanisms and water composition. This study found that seasonality and postfire stream channel erosion influence the makeup of runoff response.
HYDROLOGICAL PROCESSES
(2023)
Article
Geosciences, Multidisciplinary
Jaroslaw Cebulski
Summary: This paper investigates the impact of river erosion on landslides in the Polish Outer Carpathians. The study found that landslides remain active during floods, with colluvial material continuously removed between flood events. The amount of material carried away by streams during floods accounted for a significant portion of the total material removed during the study period.
Article
Agronomy
Yusen Zhang, Lunjiang Wang, Jing Yang, Qing Wang
Summary: Wildfires increase stemflow velocity by 30-40%. Stemflow velocity is positively related to stemflow rate and tends to increase with stem height. Pine bark fissure depth and width are negatively related to stemflow velocity. Wildfires reduce soil internal friction angle and cohesion by up to 32% and 62% respectively. Enhanced stemflow velocity can cause soil erosion around the base of the trunk.
Article
Engineering, Civil
J. Neris, P. R. Robichaud, J. W. Wagenbrenner, R. E. Brown, S. H. Doerr
Summary: Wildfires can significantly impact the hydrological and erosion processes in volcanic areas, increasing risks to population and assets. The effects of fire on these processes have not been extensively studied in this type of terrain, but are crucial for modeling and mitigating post-fire risks.
JOURNAL OF HYDROLOGY
(2023)
Article
Agronomy
Yolanda Sanchez Sanchez, Antonio Martinez Grana, Fernando Santos-Frances
Summary: This paper investigates soil erosion before and after a wildfire using remote sensing techniques. The study shows a significant increase in erosion post-fire, with the fire also negatively impacting post-fire vegetation recovery.
Article
Geography, Physical
Nadine G. Reitman, Karl J. Mueller, Gregory E. Tucker
Summary: In this study, the effects of interpretation error on apparent short-wavelength variability in surface slip distributions were examined. The results show that both inherent variability in the rupture process and interpretation error contribute to the observed variability in slip distributions.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Geosciences, Multidisciplinary
David G. Litwin, Gregory E. Tucker, Katherine R. Barnhart, Ciaran J. Harman
Summary: This study developed a new model to explore how runoff generation affects long-term catchment evolution, focusing on hydrologic processes dominating in humid climates. The results showed the interplay between surface and subsurface water, with implications on landscape evolution and runoff generation.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Environmental Sciences
Joshua C. Koch, Matthew J. Bogard, David E. Butman, Kerri Finlay, Brian Ebel, Jason James, Sarah Ellen Johnston, M. Torre Jorgenson, Neal J. Pastick, Robert G. M. Spencer, Robert Striegl, Michelle Walvoord, Kimberly P. Wickland
Summary: Climate change is causing the thawing of permafrost soils in northern circumpolar landscapes, potentially releasing large quantities of organic carbon (OC) into the environment. However, the extent and mechanisms of OC mobilization and terrestrial-aquatic transfer are not well understood.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Engineering, Geological
Alexander N. Gorr, Luke A. McGuire, Ann M. Youberg, Francis K. Rengers
Summary: The study presents a computationally efficient debris-flow inundation model, ProDF, calibrated using data from five watersheds near Montecito, California to demonstrate its effectiveness in simulating debris-flow inundation.
Article
Geosciences, Multidisciplinary
Benjamin Campforts, Charles M. Shobe, Irina Overeem, Gregory E. Tucker
Summary: This article investigates the impact of bedrock landslides on topography and sediment dynamics, highlighting the significance of interactions between landslides and sediment dynamics for landscape evolution and response to environmental change.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Editorial Material
Multidisciplinary Sciences
C. Michael Barton, Allen Lee, Marco A. Janssen, Sander van der Leeuw, Gregory E. Tucker, Cheryl Porter, Joshua Greenberg, Laura Swantek, Karin Frank, Min Chenk, H. R. Albert Jagers
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Editorial Material
Geosciences, Multidisciplinary
David G. Litwin, Gregory E. Tucker, Katherine R. Barnhart, Ciaran J. Harman
Summary: This article discusses the importance of domain size in a simple landscape evolution model and shows that it has little impact on the results in the examined parameter space. The authors also demonstrate that using landscape evolution process rates rather than domain size for nondimensionalization allows for a clearer understanding of the intrinsic features of the results.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Review
Geosciences, Multidisciplinary
Timothy Titus, D. Robertson, J. B. Sankey, L. Mastin, F. Rengers
Summary: Modern civilization lacks collective experience in dealing with the potential wide-ranging effects of a medium-sized asteroid impact. While efforts have been made to model the initial effects of meteor impacts or airbursts, the long-term cascading hazards are often overlooked. This paper reviews the initial and cascading effects of more common natural disasters and discusses their relevance to the expected long-term effects of an asteroid impact. A framework linking multiple hazard models could greatly benefit emergency managers, resource planners, and research scientists involved in mitigation and recovery efforts.
Article
Engineering, Civil
David M. Rey, Martin A. Briggs, Michelle A. Walvoord, Brian A. Ebel
Summary: Increasingly severe and frequent wildfires in the western United States may change the quantity, timing, and quality of water exported by streams from burned areas. However, the effects of wildfires on groundwater recharge, changes in subsurface routing, and their consequences for stream low flows sourced predominantly by baseflow are poorly understood. This study demonstrates the use of temperature signals to identify changes in watershed subsurface flow contributions after fire and provides a framework for water management, impacts on aquatic habitat, and post-wildfire response planning.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Sai S. Nudurupati, Erkan Istanbulluoglu, Gregory E. Tucker, Nicole M. Gasparini, Daniel E. J. Hobley, Eric W. H. Hutton, Katherine R. Barnhart, Jordan M. Adams
Summary: Projecting the response of arid and semi-arid ecosystems to global change involves integrating various analytical and numerical models. This study used the Landlab earth surface modeling toolkit to investigate the controls of exogenous drivers and endogenous grass-fire feedback mechanisms in New Mexico. The simulations showed that shrubs occupy cooler slopes in dry conditions and shift to warmer slopes as regional moisture increases. The expansion of woody plant encroachment is predicted to occur in three phases, with the second phase requiring the removal of positive grass-fire feedback by grazing or fire suppression.
WATER RESOURCES RESEARCH
(2023)
Review
Environmental Sciences
Brian A. Ebel, Zachary M. Shephard, Michelle A. Walvoord, Sheila F. Murphy, Trevor F. Partridge, Kim S. Perkins
Summary: Wildfires are an increasing concern due to climate change, and their hydrologic effects are being studied using numerical models. This review examines the use of physically based distributed models to understand water resources after wildfires, focusing on geographic/ecohydrologic distribution, representation of hydrologic processes, model parameterization, and model performance. There are opportunities for improvement, such as applying models in underrepresented regions, incorporating all streamflow generation mechanisms, and integrating vegetation regrowth models with hydrologic models.
Article
Water Resources
Sheila F. Murphy, Charles N. Alpers, Chauncey W. Anderson, J. Ryan Banta, Johanna M. Blake, Kurt D. Carpenter, Gregory D. Clark, David W. Clow, Laura A. Hempel, Deborah A. Martin, Michael R. Meador, Gregory O. Mendez, Anke B. Mueller-Solger, Marc A. Stewart, Sean E. Payne, Cara L. Peterman, Brian A. Ebel
Summary: Wildfires pose a risk to water supplies due to potential degradation of water quality, but a lack of data hinders prediction and assessment of post-wildfire impacts. Strategic monitoring and selection of sampling locations based on specific criteria can enhance assessment and prediction of post-wildfire water quality. Improved estimates of post-wildfire effects on water quality would help mitigate impacts on water supplies.
FRONTIERS IN WATER
(2023)
Article
Water Resources
Brian A. Ebel, Joseph W. Wagenbrenner, Alicia M. Kinoshita, Kevin D. Bladon
Summary: Deviations in hydrologic processes caused by wildfires can impact streamflow, affecting peak flows and low flows. These changes can have consequences for water supplies, including quantity, quality, and timing. Post-fire shifts in hydrologic processes can also alter the timing and magnitude of floods and debris flows. The duration of hydrologic recovery is a critical concern for land, water, and emergency managers.
JOURNAL OF HYDROLOGY AND HYDROMECHANICS
(2022)
Article
Geosciences, Multidisciplinary
Gregory E. Tucker, Eric W. H. Hutton, Mark D. Piper, Benjamin Campforts, Tian Gan, Katherine R. Barnhart, Albert J. Kettner, Irina Overeem, Scott D. Peckham, Lynn McCready, Jaia Syvitski
Summary: Computational modeling plays a unique role in Earth and environmental sciences, serving as both scientific technology and infrastructure and as containers of the scientific community's understanding. To promote a flexible, interoperable, and ever-improving research software ecosystem, the Community Surface Dynamics Modeling System (CSDMS) has developed design principles, protocols, and tools.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2022)
Article
Geography, Physical
A. Securo, C. Del Gobbo, L. Rettig, S. Pillon, A. De Luca, D. Fontana, E. Benedetti Fasil, R. R. Colucci
Summary: Small glaciers in temperate mountain regions have experienced significant reduction and unprecedented melt rates in recent years. Some glaciers have transitioned from clean ice to debris-covered or even rock glaciers. This study examines the surface elevation change of the Popera Alto glacier in the Sesto Dolomites using LiDAR and Structure from Motion surveys, and analyzes its evolution in terms of surface cover and geomorphic processes. The glacier has lost an average of 0.35 m water equivalent per year over the past 16 years, with active modification of its surface cover by geomorphic processes. The role of debris and local topography feedback has allowed the resilience of the glacier, leading to a marked difference between the current environmental equilibrium line altitude (envELA) and the effective ELA (effELA) of the glacier.
Article
Geography, Physical
Zhenzhen Yan, Yaolin Shi, Lili Kang, Xiangtao Fan
Summary: This study proposes a quantitative regional deformation model based on global positioning system (GPS) data to quantitatively analyze the morphological evolution of rivers in the Three Rivers Region. It finds that tectonic deformation phases significantly control regional landscape development and drainage features.
Article
Geography, Physical
Said Mukhtar Ahmad, Nitheshnirmal Sadhasivam, Mona Lisa, Luigi Lombardo, Mustafa Kemal Emil, Amira Zaki, Cees J. Van Westen, Islam Fadel, Hakan Tanyas
Summary: In this study, we investigated a large slow-moving landslide in Northern Pakistan, using Interferometric Synthetic Aperture Radar (InSAR) analysis. Our results showed that the crown of the landslide is moving faster than the surrounding regions, while the footslope experienced high deformations. We discussed the possible roles of meteorologic and anthropogenic factors in causing these deformations.
Article
Geography, Physical
Shuang Bian, Xibin Tan, Yiduo Liu, Suoya Fan, Junfeng Gong, Chao Zhou, Feng Shi, Michael A. Murphy
Summary: The Yarlung River's drainage divide is primarily moving north due to variations in precipitation across the Himalayas. The Gangdese drainage divide shows predominantly northward and southward migration, controlled by base-level rise and downstream influences. The presence of north-trending rifts separates the drainage divides into five zones, each with a distinct migration pattern.
Article
Geography, Physical
Joon-Young Park, Seok Yoon, Deuk-Hwan Lee, Seung-Rae Lee, Hwan-Hui Lim
Summary: This study developed a multiple-regression model to estimate site-specific average growth rates of debris flow events. The proposed model was validated through a case study and showed reasonable predictions of debris flow velocities and heights.
Article
Geography, Physical
Nicholas Reilly Mccarroll, Arnaud Temme
Summary: New geochronological data from hillslope boulder armor in the Flint Hills reveal the rates and timing of lateral retreat in the landscape. Surfaces of limestone boulders dating back to the Pleistocene era were found, and the ages of the hillslope armor increased with distance from the limestone bench. The estimated rate of lateral retreat in this landscape is 0.02 mm/yr.
Article
Geography, Physical
Xinbo Yao, Yuntao Tian
Summary: By studying the Longmenshan-Minshan drainage divide, we found that it has reached a dynamic steady state, indicating a balance between erosion and rock uplift. This study also reveals the process of formation and evolution of the divide and raises questions about the effectiveness of divide migration metrics.
Article
Geography, Physical
Junhui Yu, Pin Yan, Yanlin Wang, Guangjian Zhong, Changliang Chen
Summary: The seafloor mounds in the Chaoshan Depression of the South China Sea are identified as mud volcanoes, with fluids coming from underlying mud-fluid diapirs. The hydrocarbon gases feeding the mud volcanoes and diapirs are reasoned to originate from deep Mesozoic source rocks, indicating significant Mesozoic hydrocarbon potential in the Chaoshan Depression.
Article
Geography, Physical
Marius Huber, Luc Scholtes, Jerome Lave
Summary: This paper investigates the relationships between hillslope stability and fabric anisotropy of brittle rock materials and the implications for landscape shaping. It explores the different stability modes and movement characteristics of anisotropic materials, and demonstrates the significant control of material anisotropy on landscape shaping.
Article
Geography, Physical
Shubhra Sharma, Anil D. Shukla
Summary: The study investigates the relationship between glacial dynamics and lake sedimentation during the mid-Holocene climate variability in the Southern Zanskar ranges. It utilizes geomorphological disposition, elemental geochemistry, and optical chronology of relict lake sediment to reconstruct the pattern of minor glacier responses to climate variability. The results indicate six centennial to millennial-scale climatic phases, with warmer phases represented by decreased mineralogical fine grain flux and increased coarse grain flux. The study highlights the potential of relict lake sediment and para/peri-glacial landforms in understanding glacial dynamics and climate change during the Holocene.
Article
Geography, Physical
Jean-Francois Bernier, Sydney W. Meury, Patrick Lajeunesse
Summary: In this study, an approach combining various data and observation methods was proposed to improve the monitoring of landfast ice dynamics and its geomorphic impact on sedimentary systems. The results demonstrate the ability of the approach to accurately measure interannual variations in landfast ice and constrain geomorphic changes. Additionally, the study found a strong relationship between the severity of freezing seasons and the response of landfast ice to hydrometeorological events, with different geomorphic responses observed under different winter conditions.
Article
Geography, Physical
Heping Shu, Fanyu Zhang
Summary: This study investigates the relationship between susceptibility of soil-water hazards and human activities, geoheritage sites in the Loess Plateau, China. Landslide and gully erosion susceptibility were obtained using gradient boosting and support vector machines, and a hazard matrix was formed to couple landslide and gully erosion susceptibility. The study found different trends in the magnification times of soil-water hazards chain under different scenarios.
Article
Geography, Physical
Guangqiang Qian, Zhuanling Yang, Xuegang Xing, Zhibao Dong, Youyuan Guo
Summary: Granule ripples are aeolian landforms armored against erosion by coarse grains. This study investigates their seasonal morphological evolution and migration in the Sanlongsha Dune Field. The findings show that wind events, especially those exceeding the threshold velocities of coarse grains, significantly influence the morphodynamics of granule ripples. The study highlights the importance of considering the reptation and saltation of coarse grains in future research on granule ripples.