Hydrogeomorphology: overview of an emerging science

Sidle, Roy C.; Onda, Yuichi

doi:10.1002/hyp.1360

Cited by 73 publications

(42 citation statements)

References 31 publications

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“…These elements (structure and function) are influenced by diverse variables (e.g. the type and gradient of the valley, soil controls, riparian vegetation and land uses), but the flow regime is most likely the most influential variable in the development of the geomorphic attributes of river systems (Bendix and Hupp, 2000;Bunn and Arthington, 2002;Sidle and Onda, 2004;Hupp and Rinaldi, 2007). The dominant (channel-forming) discharge of a river is closely related to these attributes.…”

Section: A Description Of the Rfv Indexmentioning

confidence: 99%

Evaluating the quality of riparian forest vegetation: the Riparian Forest Evaluation (RFV) index

Magdaleno

Martinez

2014

For. syst.

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Aim of study: This paper presents a novel index, the Riparian Forest Evaluation (RFV) index, for assessing the ecological condition of riparian forests. The status of riparian ecosystems has global importance due to the ecological and social benefits and services they provide. The initiation of the European Water Framework Directive (2000/60/CE) requires the assessment of the hydromorphological quality of natural channels. The Directive describes riparian forests as one of the fundamental components that determine the structure of riverine areas. The RFV index was developed to meet the aim of the Directive and to complement the existing methodologies for the evaluation of riparian forests.Area of study: The RFV index was applied to a wide range of streams and rivers (170 water bodies) in Spain. Material and methods:The calculation of the RFV index is based on the assessment of both the spatial continuity of the forest (in its three core dimensions: longitudinal, transversal and vertical) and the regeneration capacity of the forest, in a sampling area related to the river hydromorphological pattern. This index enables an evaluation of the quality and degree of alteration of riparian forests. In addition, it helps to determine the scenarios that are necessary to improve the status of riparian forests and to develop processes for restoring their structure and composition.Main results: The results were compared with some previous tools for the assessment of riparian vegetation. The RFV index got the highest average scores in the basins of northern Spain, which suffer lower human influence. The forests in central and southern rivers got worse scores. The bigger differences with other tools were found in complex and partially altered streams and rivers.Research highlights: The study showed the index's applicability under diverse hydromorphological and ecological conditions and the main advantages of its application. The utilization of the index allows a better understanding of the status of riparian forests, and enhances improvements in the conservation and management of riparian areas.

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Section: A Description Of the Rfv Indexmentioning

confidence: 99%

Evaluating the quality of riparian forest vegetation: the Riparian Forest Evaluation (RFV) index

Magdaleno

Martinez

2014

For. syst.

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“…Landslides and debris flows can also load sediment to fluvial systems, degrading aquatic habitat (e.g., Lamberti et al 1991;Gomi et al 2002). The potential causes of slope failures include the influences of hydrology, geology, soils, volcanoes, seismicity, and processes, including slope failure (Scheidegger 1972;Dunne 1990Dunne , 1994Sidle and Onda 2004).…”

Section: Introductionmentioning

confidence: 99%

The impacts of hysteresis on variably saturated hydrologic response and slope failure

2010

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This investigation employs 3D, variably saturated subsurface flow simulation to examine hysteretic effects upon the hydrologic response used to drive unsaturated slope stability assessments at the Coos Bay 1 (CB1) experimental catchment in the Oregon Coast Range, USA. Slope stability is evaluated using the relatively simple infinite slope model for unsaturated soils driven by simulated pore-water pressures for an intense storm that triggered a slope failure at CB1 on 18 November 1996. Simulations employing both hysteretic and non-hysteretic soil-water retention curves indicate that using either the drying soil-water retention curve or an intermediate soilwater retention curve that attempts to average the wetting and drying retention curves underestimates the near-surface hydrologic response and subsequently the potential for slope failure. If hysteresis cannot be considered in the hydrologic simulation, the wetting soil-water retention curve, which is seldom measured, should be used for more physically based slope stability assessment. Without considering hysteresis or using the wetting soil-water retention curve, the potential for landsliding in unsaturated materials may be underestimated and a slope failure could occur when simulations predict stability.

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“…We therefore propose a simple and functional approach based on hydrogeomorphology defined as the 'interactions and linkages of the hydrologic processes with landforms or earth materials and the interaction of geomorphic processes with surface and subsurface water in temporal and spatial dimensions' (Sidle & Onda 2004). It is hypothesized that the abundance or natural production of fish or shrimps in mangroves (or their nursery ground value) is related to the mangrove hydrogeomorphology.…”

Section: Introductionmentioning

confidence: 99%

Demersal Fish and Shrimp Abundance in Relation to Mangrove Hydrogeomorphological Metrics

Jamizan¹,

Chong²

2017

JSM

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Hydrogeomorphology: overview of an emerging science

Cited by 73 publications

References 31 publications

Evaluating the quality of riparian forest vegetation: the Riparian Forest Evaluation (RFV) index

Evaluating the quality of riparian forest vegetation: the Riparian Forest Evaluation (RFV) index

The impacts of hysteresis on variably saturated hydrologic response and slope failure

Demersal Fish and Shrimp Abundance in Relation to Mangrove Hydrogeomorphological Metrics

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