Article
Environmental Sciences
Spencer Dakin Kuiper, Nicholas C. Coops, Piotr Tompalski, Scott G. Hinch, Alyssa Nonis, Joanne C. White, Jeffery Hamilton, Donald J. Davis
Summary: Understanding changes in salmonid populations and their habitat is crucial due to climate change and their importance as a keystone species. Airborne Laser Scanning (ALS) data can be used to assess the quality and quantity of salmonid habitat, as well as characterize detailed stream attributes. ALS data provides detailed Digital Elevation Models (DEMs) and can be utilized for sustainable forest management decision making and advanced salmonid habitat modeling.
REMOTE SENSING OF ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Philip R. Kaufmann, Robert M. Hughes, Steven G. Paulsen, David V. Peck, Curt W. Seeliger, Marc H. Weber, Richard M. Mitchell
Summary: Quantitative measures of physical habitat structure are important indicators of the impacts of human activities on stream and river condition.
ECOLOGICAL INDICATORS
(2022)
Article
Biodiversity Conservation
Ezmie Trevarrow, Ivan Arismendi
Summary: This study used camera trap videos to document wildlife biodiversity and animal activities at several large wood complexes in Rock Creek, Oregon. The results showed that large wood plays an important role in supporting wildlife biodiversity and providing habitat connectivity between terrestrial and aquatic environments. The study also highlighted the variability in the effects of large wood across different stream locations.
BIODIVERSITY AND CONSERVATION
(2022)
Article
Biodiversity Conservation
Philip R. Kaufmann, Robert M. Hughes, Steven G. Paulsen, David Peck, Curt W. Seeliger, Tom Kincaid, Richard M. Mitchell
Summary: Rigorous assessments of water resources' ecological condition and the impact of human activities on them require quantitative data, showing that artificial disturbances have negative effects on physical habitats. The U.S. Environmental Protection Agency's study found that a certain proportion of rivers and lakes in the country are in poor condition, characterized by anthropogenic disturbances, sediment accumulation, inadequate riparian vegetation cover, and low habitat complexity. The severity of these conditions varies in different ecological regions.
ECOLOGICAL INDICATORS
(2022)
Article
Ecology
Pawel Mikus, Bartlomiej Wyzga, Aneta Bylak, Krzysztof Kukula, Maciej Liro, Pawel Oglecki, Artur Radecki-Pawlik
Summary: Effective sediment entrapment in incised channels can mitigate the adverse effects of channel incision and alluvial bed substrate loss on ecosystems of mountain watercourses downstream from check dams. Restoring ecosystem balance through measures such as installing block ramps and lowering high dam reservoirs can improve physical habitat conditions and positively impact benthic macroinvertebrates and fish communities in the restoration project area.
ECOLOGICAL ENGINEERING
(2021)
Article
Geosciences, Multidisciplinary
Tomas Galia, Radek Tichavsky, Andrea Fabianova, Vilem Spalovsky
Summary: Research focused on the recruitment and distribution patterns of large wood (LW) in headwater streams of forested mountain regions, where disturbances play a crucial role in determining the final distribution of LW. Analysis revealed that streams impacted by blowdowns had the highest LW volume and a uniform longitudinal distribution, while streams affected by high-magnitude cascade recruitment-transport processes had the lowest LW volume and irregular distribution. Dendroecological dating further showed that a significant percentage of LW died during specific periods due to disturbances, with different growth patterns observed in response to varying levels of disturbance intensity.
Article
Geography, Physical
George R. Pess, Michael L. McHenry, Martin C. Liermann, Karrie M. Hanson, Timothy J. Beechie
Summary: Wood reintroduction has been widely used as a stream restoration technique since the late 1980s. Most studies have focused on short-term changes and salmonids' response to wood reintroduction. Few have explored the long-term effects of increased wood loadings on stream channel morphology and geomorphic processes. This study used photos and a wood storage survey to analyze the effects of 23 years of wood additions in a Western Washington watershed, showing significant changes in channel morphology and habitat conditions. The findings highlight the importance of cumulative habitat restoration actions and demonstrate the effectiveness of wood placement in accelerating habitat recovery.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Geography, Physical
Andrew W. Tranmer, Diego Caamano, Stephen R. Clayton, Abolfazl Nazari Giglou, Peter Goodwin, John M. Buffington, Daniele Tonina
Summary: A restoration project on an alluvial wet-meadow system found that sizing the channel to the effective discharge (Q(e)) can lead to rapid dynamic equilibrium, while excessively wide channels may take nearly 300 years to reach equilibrium.
Article
Remote Sensing
Spencer Dakin Kuiper, Nicholas C. Coops, Lukas R. Jarron, Piotr Tompalski, Joanne C. White
Summary: The accurate detection and mapping of instream wood is important for sustainable forest management. This study developed and tested a novel framework to use Airborne Laser Scanning (ALS) data to automatically detect and map instream wood. The results showed that the method had moderate overall accuracy and could be used for fish habitat modeling and assessing management practices.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2023)
Article
Ecology
Christopher Clark, Michelle Krall, Phil Roni, Kevin Ceder
Summary: Climate change is projected to significantly increase stream temperatures in the Columbia River Basin, negatively impacting salmonid fishes. Despite efforts to use large wood placement to mitigate these effects, studies show that current projects do not effectively decrease summer water temperatures or create cool water refuges for fishes.
RESTORATION ECOLOGY
(2021)
Article
Environmental Sciences
W. Gregory Hood
Summary: Large wood plays an important role in river geomorphology and ecology, and it is presumed to have similar functions in estuarine tidal channels. This study analyzed the distribution of large wood in tidal marshes and tidal channels of Puget Sound river deltas and found that various factors affect its distribution. The density of large wood in Puget Sound tidal channels is significantly lower than that in Western Washington streams.
ESTUARIES AND COASTS
(2023)
Article
Environmental Sciences
Neal D. Mundahl, Will L. Varela, Cole Weaver, Erik D. Mundahl, Jennifer L. Cochran-Biederman
Summary: Riparian buffers along streams can intercept eroding soils, contaminants, and nutrients, improving stream habitats and increasing the health of aquatic communities. A survey conducted in a Minnesota stream showed that the implementation of a state-mandated buffer law resulted in improved stream habitats and fish and benthic invertebrate communities. However, the improvement in biotic community metrics was not significant, indicating that more time may be needed for the biotic communities to adapt to the changed habitat conditions.
ENVIRONMENTAL MANAGEMENT
(2023)
Article
Geography, Physical
John C. Stella, Li Kui, Gregory H. Golet, Frank Poulsen
Summary: Fluvial processes have a strong impact on riparian forests, causing changes in tree species, density, and size over time. By developing a dynamic model based on floodplain age, we can predict changes in riparian forest structure and evaluate their effects on river processes, carbon storage, and habitat quality.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Environmental Sciences
Samuel F. Bosio, Patrick A. Shirey, Sally A. Entrekin, Timothy J. Hoellein, Ashley H. Moerke, Emma J. Rosi, Jennifer L. Tank, Gary A. Lamberti
Summary: Long-term monitoring of large wood (LW) additions in three small streams in the midwestern USA revealed that most logs moved within the first 3 years and formed aggregations after 14 years. Factors contributing to log movement included high flow events and log position in the channel. The study suggests that adding LW to small, groundwater-dominated streams can provide sustained ecological benefits with minimal risk to downstream reaches.
RIVER RESEARCH AND APPLICATIONS
(2021)
Article
Geography, Physical
Matthew J. Cashman, Gemma L. Harvey, Geraldene Wharton
Summary: The study examined the structural complexity and ecosystem engineering effects of large wood jams at four sites with varying management intensity, revealing that natural jams and sites with low riparian management intensity had the highest complexity and volume of jams. Structural complexity was found to influence the ecosystem engineering role of large wood, with more complex jams generating greater effects on flow hydraulics and sediment characteristics. The study presents a conceptual model for evaluating sites along the management intensity spectrum to inform restoration design and best practice.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Geography, Physical
Aaron D. Tamminga, Brett C. Eaton, Chris H. Hugenholtz
EARTH SURFACE PROCESSES AND LANDFORMS
(2015)
Article
Environmental Sciences
S. L. Davidson, B. C. Eaton
WATER RESOURCES RESEARCH
(2015)
Article
Geography, Physical
Brett Eaton, Robert Millar
EARTH SURFACE PROCESSES AND LANDFORMS
(2017)
Article
Geography, Physical
F. Hugue, M. Lapointe, B. C. Eaton, A. Lepoutre
Article
Engineering, Civil
Brett Eaton, Lucy MacKenzie, Matthias Jakob, Hamish Weatherly
JOURNAL OF HYDRAULIC ENGINEERING
(2017)
Article
Engineering, Civil
Brett Eaton, Lucy MacKenzie, Matthias Jakob, Hamish Weatherly
JOURNAL OF HYDRAULIC ENGINEERING
(2017)
Editorial Material
Geography, Physical
Lucy G. MacKenzie, Brett C. Eaton, Michael Church
EARTH SURFACE PROCESSES AND LANDFORMS
(2018)
Article
Environmental Sciences
Daniel McParland, Brett Eaton, Jordan Rosenfeld
RIVER RESEARCH AND APPLICATIONS
(2016)
Article
Environmental Sciences
S. L. Davidson, B. C. Eaton
WATER RESOURCES RESEARCH
(2018)
Article
Ecology
Sean M. Naman, Jordan S. Rosenfeld, Jason R. Neuswanger, Eva C. Enders, Brett C. Eaton
FRESHWATER BIOLOGY
(2019)
Article
Geography, Physical
Brett C. Eaton, Lucy G. MacKenzie, William H. Booker
EARTH SURFACE PROCESSES AND LANDFORMS
(2020)
Article
Geography, Physical
Anya Leenman, Brett Eaton
Summary: The experiment shows that avulsions are rapid and aperiodic, with in-channel sediment accumulation affecting their occurrence.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Geography, Physical
Brett C. Eaton, Lucy G. MacKenzie, Caitlin Tatham
Summary: This paper introduces a novel approach called geomorphic river engineering to limit stream channel instability. The approach relies on the stabilizing effects of coarse sediment and modulates the rate of bank erosion during flood events. The results suggest that depositing a moderate volume of coarse sediment on a gravel bed stream can significantly reduce lateral migration, and the degree of stabilization can be adjusted by changing the amount of sediment placed on the floodplain.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Geography, Physical
Brett C. Eaton, R. Dan Moore, Lucy G. MacKenzie
EARTH SURFACE DYNAMICS
(2019)
Article
Geography, Physical
Lucy G. MacKenzie, Brett C. Eaton
EARTH SURFACE PROCESSES AND LANDFORMS
(2017)
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.