Effect of Riparian Vegetation on Flow Resistance and Flood Potential

Darby, S. E.

doi:10.1061/(asce)0733-9429(1999)125:5(443)

Cited by 189 publications

(116 citation statements)

References 26 publications

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“…In the topographically complex environment of our study area, we found surface runoff to be greatest with the sprawl scenario in direct contrast with these results. The subsequent conversion of forest cover to impervious surface, with a high degree of surface and subsurface water uptake, combined with steeper sloped terrain can explain the increase in surface water runoff (Darby 1999). For carbon storage, our results are consistent with other studies (e.g.…”

Section: Discussionsupporting

confidence: 92%

Forecasts of urbanization scenarios reveal trade-offs between landscape change and ecosystem services

et al. 2016

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Context Expansion of urban settlements has caused observed declines in ecosystem services (ES) globally, further stressing the need for informed urban development and policies. Incorporating ES concepts into the decision making process has been shown to support resilient and functional ecosystems. Coupling land change and ES models allows for insights into the impacts and anticipated trade-offs of specific policy decisions. The spatial configuration of urbanization likely influences the delivery and production of ES. Objective When considering multiple ES simultaneously, improving the production of one ecosystem service often results in the decrease in the provision of other ES, giving rise to trade-offs. We examine the impact of three urban growth scenarios on several ES to determine the degree to which spatial configuration of urbanization and the development of natural land cover impacts these services over 25 years. Methods We couple land change and ES models to examine impacts to carbon sequestration, surface water-run off, nitrogen and phosphorus export, organic farming and camping site suitability, to determine trade-offs among the six ES associated with each spatial configuration for western North Carolina. Results Consequences of urban configurations are dramatic, with degraded ES across all scenarios and substantial variation depending on urban pattern, revealing trade-offs. Counter-intuitive trade-offs between carbon sequestration and lands available for organic farming and camping were observed, suggesting that no configurations result in mutual benefits for all ES. Conclusions By understanding trade-offs associated with urban configurations, decision makers can identify ES critical to an area and promote configurations that enhance those.

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Section: Discussionsupporting

confidence: 92%

Forecasts of urbanization scenarios reveal trade-offs between landscape change and ecosystem services

et al. 2016

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“…Crosato & Saleh, 2011). Increase in riparian vegetation, particularly woodland, can reduce flood capacity but also increases roughness thus slowing the passage of flood waves (Darby, 1999;James & Makoa, 2006). River corridors support a range of habitat types and are often key zones of biodiversity (Décamps et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Evidence of increase in woody vegetation in a river corridor, Northwest England, 1984–2007

Hooke

Chen

2015

Journal of Maps

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Based on observations on rivers in England over a 30-year period, it was hypothesised that the extent of woody vegetation in riparian areas has increased in many locations. Methods to map and measure changes in vegetation cover from aerial photographs were developed and tested on a 5 km reach of the River Dane in Northwest England. Riparian vegetation was divided into seven classes, and these were mapped from aerial photographs of four dates, 1984, 1996, 2001 and 2007. The results indicate an increase from 9% woody vegetation cover in the river corridor in 1984 to 32% cover in 2007, with a 40-fold increase in areas of mature woody vegetation. The results have implications for river processes, because of effects on bank erosion and sediment supply, and for land management policies, with grazing control hypothesised to be a major cause of the changes.

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“…During overbank flow, the hydraulic roughness of above-ground stems and branches of floodplain plant communities reduces water velocities and enhances the deposition of fine sediment and organic matter (Sedell and Beschta, 1991;Darby, 1999;Gyssels and Poesen, 2003;Smith, 2004). Additionally, the root systems of riparian plants help to stabilize streambanks by slowing or preventing streambank erosion (e.g.…”

Section: Introductionmentioning

confidence: 99%

River channel dynamics following extirpation of wolves in northwestern Yellowstone National Park, USA

Beschta

Ripple

2006

Earth Surf Processes Landf

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Effect of Riparian Vegetation on Flow Resistance and Flood Potential

Cited by 189 publications

References 26 publications

Forecasts of urbanization scenarios reveal trade-offs between landscape change and ecosystem services

Forecasts of urbanization scenarios reveal trade-offs between landscape change and ecosystem services

Evidence of increase in woody vegetation in a river corridor, Northwest England, 1984–2007

River channel dynamics following extirpation of wolves in northwestern Yellowstone National Park, USA

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