Simulated effects of floodplain restoration on plant community types

Clilverd, Hannah M.; Thompson, J. R.; Sayer, Carl D.; Heppell, Catherine M.; Axmacher, Jan C.; Stratford, Charlie; Burningham, Helene

doi:10.1111/avsc.12697

Applied Vegetation Science

2022

DOI: 10.1111/avsc.12697

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Simulated effects of floodplain restoration on plant community types

Hannah M. Clilverd

J. R. Thompson

Carl D. Sayer

et al.

Abstract: Aims: Channelization and artificial embankments have altered the natural flood regime of many rivers, impacting the hydrological characteristics of floodplain ecosystems and their biological communities. This study was undertaken on a floodplain meadow to assess spatial patterns of plant communities in relation to soil physical and chemical conditions, and the impacts of floodplain restoration that involved embankment-removal.

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Cited by 2 publications

References 55 publications

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Revisiting hydro-ecological impacts of climate change on a restored floodplain wetland via hydrological / hydraulic modelling and the UK Climate Projections 2018 scenarios

Thompson,

Clilverd,

Zheng

et al. 2023

Wetlands

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The hydro-ecological impacts of 40 UK Climate Projections 2018 scenarios on a restored lowland England river floodplain are assessed using a MIKE SHE / MIKE 11 model. Annual precipitation declines for 60% of scenarios (range: -26%–21%, with small, <5%, declines for the central probability level). Potential evapotranspiration increases for all probability levels except the most extreme, very unlikely, 10% level (range: -4%–43%, central probability 9%–20%) Mean, peak and low river discharges are reduced for all but the extreme 90% probability level. Reduced frequency of bankfull discharge dominates (at least halved for the central probability level). Floodplain inundation declines for over 97% of 320 scenario-events. Winter water table levels still intercept the surface, while mean and summer low levels are reduced. Declines in mean summer floodplain water table levels for the central probability level (0.22 m and 0.28 m for the 2050s and 2080s, respectively) are twice as large as those in the more dynamic riparian area. Declines reach 0.39 m for some 10% probability level scenarios. Simulated hydrological changes differ subtly from a previous assessment using earlier UK climate projections. A soil aeration stress index demonstrates that, under baseline conditions, prolonged high winter floodplain water tables drive long periods of low root-zone oxygen, in turn favouring vegetation communities adapted to waterlogged conditions. Climate change reduces aeration stress and the extent of appropriate conditions for these plant communities in favour of communities less tolerant of wet conditions.

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Revisiting hydro-ecological impacts of climate change on a restored floodplain wetland via hydrological / hydraulic modelling and the UK Climate Projections 2018 scenarios

Thompson,

Clilverd,

Zheng

et al. 2023

Wetlands

View full text Add to dashboard Cite

show abstract

Prioritising water-related regional development project ideas based on stakeholder involvement activities: A case study from Szigetköz, Hungary

Chappon,

Kálmán,

Ray

et al. 2024

Environmental Challenges

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Simulated effects of floodplain restoration on plant community types

Cited by 2 publications

References 55 publications

Revisiting hydro-ecological impacts of climate change on a restored floodplain wetland via hydrological / hydraulic modelling and the UK Climate Projections 2018 scenarios

Revisiting hydro-ecological impacts of climate change on a restored floodplain wetland via hydrological / hydraulic modelling and the UK Climate Projections 2018 scenarios

Prioritising water-related regional development project ideas based on stakeholder involvement activities: A case study from Szigetköz, Hungary

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