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Riparian vegetation variability along perennial streams in central Arizona

Riparian vegetation variability along perennial streams in central Arizona
Arizona ; Channel geometry ; Ecosystem ; Flood ; Multivariate analysis ; Riparian vegetation ; Spatial distribution ; Statistics ; Stream ; United States of America ; Vegetation dynamics
Analyse multivariée ; Arizona ; Cours d'eau ; Crue ; Distribution spatiale ; Dynamique de la végétation ; Ecosystème ; Etats-Unis ; Géométrie hydraulique ; Statistique ; Végétation ripicole
This study clarifies linkages between fluvial hydrologic processes, fluvial landforms, and patterns of riparian vegetation populations by using a suite of geomorphic and hydrologic variables. 5 riparian vegetation populations were examined along 5
perennial streams in the transition zone of central Arizona. Canonical correspondance analysis (CCA) with a forward selection was used to assess quantitatively the role of stream power in riparian vegetation patterns.

Allogenic and autogenic influences upon riparian vegetation dynamics

Allogenic and autogenic influences upon riparian vegetation dynamics
Bank erosion ; Channel geometry ; Habitat ; Rehabilitation ; Riparian vegetation ; Stream ; Vegetation ; Vegetation dynamics
Cours d'eau ; Dynamique de la végétation ; Erosion des berges ; Géométrie hydraulique ; Habitat ; Réhabilitation ; Végétation ; Végétation ripicole
Various aspects of both allogenic and autogenic processes in riparian vegetation dynamics are discussed here; in particular how plants may promote bank stability and sedimentation, and river island development. Riparian restoration often fails

Impact of a flood on southern California riparian vegetation

Impact of a flood on southern California riparian vegetation
Biodiversity ; Biogeography ; California ; Ecosystem ; Flood ; Impact ; Regression analysis ; Riparian vegetation ; United States of America
Analyse de régression ; Biodiversité ; Biogéographie ; California ; Crue ; Ecosystème ; Etats-Unis ; Impact ; Végétation ripicole
This study assesses flood impacts on riparian vegetation in two watersheds within the Transverse Ranges. Data collected in 1993 were compared to baseline data from 1990 to measure the effect of a 1992 flood.

Scale, direction, and pattern in riparian vegetation. Environment relationships

Scale, direction, and pattern in riparian vegetation. Environment relationships
Action anthropique ; Biogéographie ; California ; Echelle ; Environnement ; Etats-Unis ; Statistique ; Vallée ; Végétation
Biogeography ; California ; Environment ; Human impact ; Scale ; Statistics ; United States of America ; Valley ; Vegetation
environmental relationships on vegetation patterns in riparian environments of southern California.

A new model to analyse the impact of woody riparian vegetation on the geotechnical stability of riverbanks

A new model to analyse the impact of woody riparian vegetation on the geotechnical stability of riverbanks
Bank erosion ; Canada ; Geotechnics ; Impact ; Model ; Ontario ; Riparian vegetation ; Stream ; Tree
Arbre ; Canada ; Cours d'eau ; Erosion des berges ; Géotechnique ; Impact ; Modèle ; Ontario ; Système racinaire ; Végétation ripicole
The AA. present a geotechnical stability analysis for the planar failure of riverbanks, which incorporates the effects of root reinforcement and surcharge for mature stands of woody riparian vegetation. The analysis relies on a new method
of representing the root distribution in the soil, which evaluates the effects of the vegetation's position on the bank.

Quantifying the mechanical and hydrologic effects of riparian vegetation on streambank stability

Quantifying the mechanical and hydrologic effects of riparian vegetation on streambank stability
Bank erosion ; Erosion control ; Geotechnics ; Mississippi ; Modelling ; Riparian vegetation ; Soil properties ; Stream ; United States of America
Cours d'eau ; Erosion des berges ; Etats-Unis ; Géotechnique ; Lutte contre l'érosion ; Mississippi ; Modélisation ; Propriétés du sol ; Végétation ripicole
, clump grasses, and bare/cropped turf grass) on streambank stability. The results demonstrate the importance of hydrologic processes in controlling streambank stability, and highlight the need to select riparian vegetation based on hydrologic as well
This paper reports a field monitoring and computer-modelling investigation that has been carried out in northern Mississippi to quantify the separate and combined hydrologic and mechanical effects of 3 different vegetation covers (mature trees

Multiple stable states and models of riparian vegetation succession on the Animas River, Colorado

Multiple stable states and models of riparian vegetation succession on the Animas River, Colorado
Berge ; Biogéographie ; Colorado ; Cours d'eau ; Crue ; Dynamique de la végétation ; Ecosystème ; Etats-Unis ; Modèle ; Végétation
Biogeography ; Colorado ; Ecosystem ; Flood ; Model ; Stream ; United States of America ; Vegetation ; Vegetation dynamics
, a state-and-transition model, which recognizes the possibility of multiple stable states in vegetation, via an investigation of the influence of fluvial processes and landforms on variation in a mosaic of riparian vegetation patches of different ages
This paper specifically examines the process of vegetation recovery following disturbance by exceptional natural floods along a river reach that is (and has been) comparatively undisturbed by human activities. It assesses a new successional model

Historical channel narrowing and riparian vegetation expansion in the Medicine Lodge River Basin, Kansas, 1871-1983

Historical channel narrowing and riparian vegetation expansion in the Medicine Lodge River Basin, Kansas, 1871-1983
Années 1871-1983 ; Bassin-versant ; Chenal ; Cours d'eau ; Etats-Unis ; Géographie de l'Amérique ; Kansas ; Lit fluvial ; Medicine Lodge River ; Méandre ; Plante rizicole ; Précipitation ; Saisonnalité ; Végétation

Riparian vegetation patterns in relation to fluvial landforms and channel evolution along selected rivers of Tuscany (Central Italy)

Riparian vegetation patterns in relation to fluvial landforms and channel evolution along selected rivers of Tuscany (Central Italy)
Biodiversity ; Channel geometry ; Downcutting ; Floodplain ; Human impact ; Italy ; Riparian vegetation ; River bed ; Stream ; Toscana ; Vegetation
Action anthropique ; Biodiversité ; Cours d'eau ; Géométrie hydraulique ; Incision ; Italie ; Lit fluvial ; Plaine d'inondation ; Toscana ; Végétation ; Végétation ripicole
Riparian vegetation distribution patterns and diversity relative to various fluvial geomorphic channel patterns, landforms, and processes are described and interpreted for selected rivers of Tuscany, with emphasis on channel evolution following
human impacts. Multivariate analysis revealed distinct quantitative vegetation patterns relative to six major fluvial geomorphic surfaces. Species richness increases from the channel bed to the terrace and on heterogeneous riparian areas, whereas species

Vegetation development in a modified riparian environment : human imprints on an Allegheny River wilderness

Vegetation development in a modified riparian environment : human imprints on an Allegheny River wilderness
Biodiversity ; Biogeography ; Dam ; Ecosystem ; Flood ; Hydraulic works ; Impact ; Island ; Pennsylvania ; Riparian vegetation ; Stream ; United States of America ; Vegetation dynamics
Aménagement hydraulique ; Barrage ; Biodiversité ; Biogéographie ; Cours d'eau ; Crue ; Dynamique de la végétation ; Ecosystème ; Etats-Unis ; Ile ; Impact ; Pennsylvania ; Végétation ripicole
This study examines a forested riparian natural area in the Allegheny River managed as a wilderness but situated downstream from a large dam. The AA. analyze the vegetation dynamics of this site as an indicator of the role of dams in affecting
the disturbance regime of riparian zones in the eastern deciduous forest region. Specifically, this study identifies the landscape patches present on the site to determine the disturbance related successional pathways operating in them, the life-history

Macro- and micro-scale influences on riparian vegetation in Western Colorado

Macro- and micro-scale influences on riparian vegetation in Western Colorado
Analyse de groupe ; Biogéographie ; Colorado ; Echelle spatiale ; Environnement ; Etats-Unis ; Fluviatile ; Riparia ; Rocky Mountains ; Réseau de drainage ; Végétation
Biogeography ; Colorado ; Drainage network ; Environment ; Fluvial processes ; Rocky Mountains ; Spatial scale ; United States ; Vegetation
The A. hypothesizes that there is spatial variation in the linkage between and importance of macro- and micro-environmental influences on vegetation, and explores this hypothesis in a case study of riparian vegetation in the mountains of western
Colorado. He determines major gradients in vegetation variation by Bray-Curtis ordination and interprets the gradients by correlating ordination axis scores with the values of environmental variables measured at each site.

Spatial hydrogeomorphological influences on sediment and nutrient deposition in riparian zones : observations from the Garonne River, France

Spatial hydrogeomorphological influences on sediment and nutrient deposition in riparian zones : observations from the Garonne River, France
Aquitaine ; Carbon ; Channel geometry ; Flood ; Floodplain ; France ; Garonne ; Nitrogen ; Riparian vegetation ; Sedimentation ; Spatial analysis ; Stream
Analyse spatiale ; Aquitaine ; Azote ; Carbone ; Cours d'eau ; Crue ; France ; Garonne ; Géométrie hydraulique ; Phosphore ; Plaine d'inondation ; Sédimentation ; Végétation ripicole
This paper investigates the influence of geomorphological setting on riparian zone sedimentation within a reach of the River Garonne during 3 major floods. The sampling design was stratified to reflect landforms constructed by fluvial processes (e.g
. floodplain, lateral benches, islands, side channels and point bars). Observed sedimentation varied significantly with flood event, planform context, landform type and associated vegetation cover and, in some cases, with sample location within the landform
. A conceptual model is proposed which considers the spatial pattern in riparian zone sedimentation according to riparian morphology and flood magnitude.

Riparian seed banks : structure, process and implications for riparian management

Riparian seed banks : structure, process and implications for riparian management
Bibliography ; Ecological imbalance ; Humid environment ; Hydrological regime ; Inundation ; Riparian vegetation ; River management ; Spatial variation ; Vegetation ; Vegetation dynamics
Aménagement fluvial ; Banque de semences ; Bibliographie ; Dynamique de la végétation ; Déséquilibre écologique ; Inondation ; Milieu humide ; Régime hydrologique ; Variation spatiale ; Végétation ; Végétation ripicole

The effect of riparian tree roots on the mass-stability of riverbanks

The effect of riparian tree roots on the mass-stability of riverbanks
Australia ; Bank erosion ; Geotechnics ; Mass movement ; Model ; New South Wales ; Riparian vegetation ; Stream
Australie ; Cours d'eau ; Erosion des berges ; Géotechnique ; Modèle ; Mouvement de masse ; New South Wales ; Racine ; Végétation ripicole
properties due to the roots of native Australian riparian trees affected the stability of bank sections surveyed along the Latrobe River. The addition of roots to riverbanks improves stability even under worst-case hydrological conditions and is apparent over

Did humid-temperate rivers in the Old and New Worlds respond differently to clearance of riparian vegetation and removal of woody debris ?

Did humid-temperate rivers in the Old and New Worlds respond differently to clearance of riparian vegetation and removal of woody debris ?
Australia ; Canada ; Channel geometry ; Comparative study ; Deforestation ; Europe ; Human impact ; Impact ; Land use ; New Zealand ; North America ; Riparian vegetation ; River bed ; Stream ; United States of America
Action anthropique ; Amérique du Nord ; Australie ; Canada ; Cours d'eau ; Déboisement ; Débris ligneux ; Etats-Unis ; Etude comparée ; Europe ; Géométrie hydraulique ; Impact ; Lit fluvial ; Nouvelle-Zélande ; Utilisation du sol ; Végétation
In this paper, geomorphic responses of rivers to rapid, systematic clearance of riparian vegetation in New World (colonial) societies are contrasted with changes associated with gradual, piecemeal, yet progressive clearance of riparian forests

Structure and composition of a riparian forest edge

Structure and composition of a riparian forest edge
Biogéographie ; Dynamique de la végétation ; Ecologie ; Etats-Unis ; Forêt ; Iowa ; Méandre ; Plaine d'inondation ; Végétation
Biogeography ; Ecology ; Floodplain ; Forest ; Iowa ; Meander ; United States ; Vegetation ; Vegetation dynamics
To examine specific changes in vegetation initiated by the lateral migration of a river channel, the AA. quantify the structures and composition of woody trees and shrubs along a cutbank forest edge in an Iowa floodplain.

Sedimentation in the riparian zone of an incising river

Sedimentation in the riparian zone of an incising river
Aerial photography ; Bank erosion ; Channel geometry ; Flood ; Floodplain ; France ; Garonne ; Isotope analysis ; Riparian vegetation ; Sedimentation rate ; Stream ; Suspended load ; Twentieth Century
Analyse isotopique ; Charge en suspension ; Cours d'eau ; Crue ; Erosion des berges ; France ; Garonne ; Géométrie hydraulique ; Photographie aérienne ; Plaine d'inondation ; Siècle 20 ; Taux de sédimentation ; Végétation ripicole
This paper focuses on one aspect of riparian zone change associated with channel incision. It presents information on sedimentation within the River Garonne, France, derived from both historical and contemporary sources. The riparian zone
in riparian zone sedimentation rates and patterns during the period immediately before and during channel incision.

The influence of riparian vegetation cover on diffuse lateral sediment connectivity and biogeomorphic processes in a medium-sized agricultural catchment, Austria

The influence of riparian vegetation cover on diffuse lateral sediment connectivity and biogeomorphic processes in a medium-sized agricultural catchment, Austria
Austria ; Biogeomorphology ; Conceptual model ; Lower Austria ; Microrelief ; Overland flow ; Riparian vegetation ; Root system ; Sediment transport ; Watershed
Autriche ; Bassin-versant ; Biogéomorphologie ; Ecoulement superficiel ; Fugnitz ; Microrelief ; Modèle conceptuel ; Niederösterreich ; Système racinaire ; Transport sédimentaire ; Végétation ripicole
This paper assesses the influence of riparian vegetation cover type on diffuse lateral sediment connectivity on valley floors and investigates biogeomorphic processes acting in forested riparian zones of a medium-sized agricultural catchment
by the respective type of riparian vegetation cover. Forested riparian zones significantly reduce sediment inputs and act as strong disconnectors between the catchment area and the river channel. Topographical features called root dams emerge from biogeomorphic
processes in forested riparian zones and act as buffers that limit the connectivity between landscape compartments.

Riparian seed banks along the lower River Dove, UK : their structure and ecological implications

Riparian seed banks along the lower River Dove, UK : their structure and ecological implications
Bank erosion ; Clay mineral ; Comparative study ; Derbyshire ; England ; Environmental management ; Organic materials ; Over-grazing ; Riparian vegetation ; Statistics ; Stream ; United Kingdom ; Vegetation dynamics
Argile minéral ; Cours d'eau ; Derbyshire ; Dynamique de la végétation ; England ; Erosion des berges ; Etude comparée ; Gestion de l'environnement ; Matière organique ; Royaume-Uni ; Statistique ; Surpâturage ; Végétation ripicole
processes in riparian seed bank dynamics and their implications for riparian management are discussed.

Riparian plant invasions : hydrogeomorphological control and ecological impacts

Riparian plant invasions : hydrogeomorphological control and ecological impacts
Bibliography ; Biogeography ; Ecosystem ; Geomorphology ; Hydrology ; Impact ; Riparian vegetation ; Vegetation
Bibliographie ; Biogéographie ; Ecosystème ; Géomorphologie ; Hydrologie ; Impact ; Invasion ; Tamarix ; Végétation ; Végétation ripicole

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