Hydrological Processes, Год журнала: 2022, Номер 37(1)
Опубликована: Дек. 27, 2022
Язык: Английский
River Research and Applications, Год журнала: 2024, Номер 40(6), С. 887 - 942
Опубликована: Апрель 4, 2024
Abstract In this article, we track the evolution of fluvial biogeomorphology from middle 20th century to present. We consider emergence as an interdisciplinary research area that integrates knowledge drawn primarily geomorphology and plant ecology, but with inputs hydrology landscape ecology. start by assembling evidence for field a keyword search Web Science detailed analysis papers published in two scientific journals: journal—Earth Surface Processes Landforms; multidisciplinary river science journal—River Research Applications. Based on evidence, identify three distinct time periods development biogeomorphology: ‘early years’ before 1990; transitional decade 1990s; period rapid expansion diversification themes, methods investigation scales since 2000. Because literature is vast, can only summarize developments each these periods, refer recent in‐depth reviews conceptual perspectives relevant topics. Thus, rather than full deep review, present annotated bibliographic overview biogeomorphology, whereby text describes broad trends supported tables citations deliver greater detail. end brief consideration likely future developments.
Язык: Английский
Процитировано
12
The Science of The Total Environment, Год журнала: 2024, Номер 930, С. 172728 - 172728
Опубликована: Апрель 24, 2024
Язык: Английский
Процитировано
8
River Research and Applications, Год журнала: 2024, Номер 40(6), С. 1087 - 1105
Опубликована: Май 6, 2024
Abstract The current focus of river restoration on flow and sediment transfer without proper consideration vegetation as a key structuring agent, beyond its stabilising effect, is too simplistic. We contend that has an essential role in shaping the physical fluvial environment should be considered equally alongside hydrogeomorphic processes projects. In support, we introduce engineer plants important controls, along with flowing water transported sediments, morphodynamics systems associated habitat development. effect channel planform then summarised, influence connectivity outlined, landform development provision, encapsulated biogeomorphic succession model, described. present examples demonstrating how contributed to recovery degraded rivers through processes. Finally, advance concept by proposing principles support closer synthesis component sciences list areas for practitioners on. Vegetation significance goes structure or stability. many settings, it central evolution. coupled assembly plant communities landforms affect spatially temporally dynamic interactions. Restoration approaches do not fully consider this may fail anticipate behaviour trajectories.
Язык: Английский
Процитировано
3
River Research and Applications, Год журнала: 2024, Номер 40(6), С. 1031 - 1048
Опубликована: Фев. 1, 2024
Abstract Recent river studies in the United Kingdom have observed an increase riparian vegetation and its potential impact on channel change sedimentation. Here, we quantify changes floodplain during first two decades of 21st century along reaches eight gravel‐bed rivers England Wales that exhibit varied active stable, single multi‐thread planforms. The analysis employs information drawn from open‐access sources including national LiDAR surveys photographic repeat aerial satellite imagery. Most show woody across their floodplains reflecting both natural colonisation deliberate planting, all but one cover riverbanks. Of six exposed riverine sediments, five a reduction sediment area as result encroachment. Contrasts rate, extent location were associated with stability planform, differences seen between stable more reaches. significance woodland promoting riverbank is demonstrated. Riparian development varies reaches, largely response to differing rates movement also because multiple diverse local decisions regarding management in‐channel channel‐adjacent by landowners rather than policy. We consider relevance our findings value remote monitoring for future interventions.
Язык: Английский
Процитировано
2
River Research and Applications, Год журнала: 2024, Номер 40(6), С. 1001 - 1011
Опубликована: Апрель 22, 2024
Abstract The ability of plants to colonize the fluvial environment and withstand uprooting by floods is largely controlled anchoring effect roots. We characterized root architecture tensile strength Alnus incana , a riparian tree species Betulaceae family for which there are no systematic observations its vertical structure. Four A. individuals two nearby Populus nigra 3–10 years old growing on bars in gravel‐bed rivers were excavated. Their structure was terms diameter, age, depth related sediment grain size scour or deposition floods. Root also measured as function diameter using load cell displacement transducer attached individual roots differed from that P. all fine, sandy sediments, one more dense radial layers most prominent 0.2–0.3 m below surface. reflect fine sediments during New deposits promote growth new layer close aggraded ground similar Salicaceae species. These indicate colonizes habitats have already received deposition, likely induced other young plants, especially then provides high near‐surface biomass, potentially further stabilizing surfaces playing complementary role an ecosystem engineer.
Язык: Английский
Процитировано
2
Water Resources Research, Год журнала: 2022, Номер 58(8)
Опубликована: Авг. 1, 2022
Abstract Aquatic vegetation in fluvial systems is often characterized by spatial patterning of the plant patches. To investigate conditions for formation patches, we explore stability a uniform flow over non‐erodible bed with cover submerged plants. The model consists two‐dimensional shallow water and continuity equations. hydrodynamic equations are coupled firstly to classic formulation dynamics, secondly modified version equation. revised relationship dynamics accounts influence removal, transport, resettlement propagules on growth rate aquatic vegetation. Linear analysis eco‐hydrodynamic problem performed enforcing quasi‐steady approximation. We obtain dispersion relation disclosing migration perturbations density as function wavenumber relevant parameters. present theory predicts onset patterns includes an adequate wavelength selection mechanism. While uprooting initially reduces density, demonstrates that resettled after removal fundamental further population increases development patterns. proposed framework then validated against data available literature. Additionally, presence upper threshold terms above which stable, might explain absence any pattern thus extremely dense induced climate change invasive species altered ecosystems.
Язык: Английский
Процитировано
9
River Research and Applications, Год журнала: 2024, Номер 40(6), С. 1012 - 1030
Опубликована: Май 14, 2024
Abstract Research in fluvial biogeomorphology largely aims to promote our understanding of the interactions between riparian vegetation and morphodynamics within riverine ecosystems. Starting at end last century, Angela M. Gurnell has made a major contribution geomorphology by considering water flow sediment transport combinaton with later also aquatic thus significantly promoting biogeomorphological approach from its early days until today. The objective present paper is set studies results obtained over 20 years mainly authors many collaborators, including Gurnell, on panel French rivers: Tech, Garonne, Isère Allier. In particular, feedback mechanisms dynamics were investigated directly field using high‐resolution remote sensor systems scale individual plants, populations, communities landscapes as well during semi‐controlled ex‐situ experiments plants. Collectively, authors' research conducted past helped elucidate some key aspects lowest highest levels ecosystem organization. This article reviews discusses those aspects. gradually have contributed better quantification river nested spatiotemporal scales, plant species traits landscape. Furthermore, advocated for more than now clearly facilitated extension discipline ecology general evolutionary particular integrative vision earth surface processes.
Язык: Английский
Процитировано
1
International Journal of Sediment Research, Год журнала: 2024, Номер 39(4), С. 497 - 513
Опубликована: Июль 20, 2024
Vegetation-induced sedimentary structures (VISS) are bed features resulting from flow-vegetation feedback and turbulence induced by vegetation at riparian sites. Generally, these commence the individual plant level, but sediment accumulation over time may lead to formation of fluvial islands. Additionally, exposed current provoke local scouring. However, little research has been done on how permeability plants affects flow fields processes. Therefore, main aim study is experimentally investigate patterns scour deposition around artificial obstacles with six different levels porosity, using a systematically designed flume experiment. Two experimental setups were implemented, transport occurring either as load or in suspension. Porosity, measure volume porous space bulk volume, was determined optical porosity which estimated digital photographs. Furthermore, VISS P. nigra shrubs investigated seasonal stages (leafless full foliage) Loire River, France, for comparison. Results show that increasing caused reduction suspension locally scoured sediment. A threshold value determined, point prolonged area calm develops behind barrier, promoting suspended suppressing transport. An empirical model presented, assesses erosion volumes obstructions, considering (a) flow-exposed surface area, (b) obstruction's (c) intensity incoming flow. On field scale, holes identified where flood-caused debris obstructions stuck their front, lowering encouraging
Язык: Английский
Процитировано
1
Revista Brasileira de Geomorfologia, Год журнала: 2023, Номер 24(2)
Опубликована: Июнь 27, 2023
This research analyzed the morphological/morphometric parameters of relief and drainage network Formiga River subbasin, southern Minas Gerais State, Brazil. study identified examined influences control mechanisms in development current configurations. The methodology was based on application indices parameters: (1) slope length (Hack's Sl); (2) normalized index (ksn); (3) river hierarchy; (4) density; (5) hydrographic (6) sinuosity index; (7) density structural lineaments; (8) transverse topographic symmetry factor; (9) asymmetry factor basins; (10) profiles to valleys; (11) ratio; (12) roughness (13) concentration (14) compactness coefficient; (15) circularity (16) form factor. results indicated 3 sectors subbasin with distinct geomorphic behaviors, which resulted peculiar surface structures divergent dynamics. presents physical evidence that demonstrates corroborates strong tectonic relief. Human action has also affected, from construction dams, dynamics lower course river, drowned by reservoir hydroelectric plant Furnas.
Язык: Английский
Процитировано
3
Authorea (Authorea), Год журнала: 2023, Номер unknown
Опубликована: Ноя. 20, 2023
The current focus of river restoration on flow and sediment transfer without proper consideration vegetation as a key structuring agent, beyond its stabilising effect, is too simplistic. We contend that has an essential role in shaping the physical fluvial environment should be considered equally alongside hydrogeomorphic processes projects. In support, we introduce engineer plants important controls, along with flowing water transported sediments, morphodynamics systems associated habitat development. effect channel planform then summarised, influence connectivity outlined, landform development provision, encapsulated biogeomorphic succession model, described. present examples demonstrating how contributed to recovery degraded rivers through processes. Finally, advance concept by proposing principles support closer synthesis component sciences list areas for practitioners on.
Язык: Английский
Процитировано
3