Holocene river development and environmental change in Upper Wharfedale, Yorkshire Dales, England

Howard, Andy J.; Macklin, Mark G.; Hudson‐Edwards, Karen A.

doi:10.1002/(sici)1099-1417(200003)15:3<239::aid-jqs480>3.0.co;2-w

Cited by 33 publications

(12 citation statements)

References 41 publications

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“…Intensive research focusing on the Holocene fluvial evolution of British river basins suggests that periods of increased river activity can be correlated with periods of climatic deterioration, a process exacerbated in the middle to late Holocene by the effects of human activity [4,5,12,[19][20][21]24]. Similar patterns of fluvial response to climate change have been described from elsewhere in the world including the USA [16].…”

Section: Introductionmentioning

confidence: 92%

Identifying changing fluvial conditions in low gradient alluvial archaeological landscapes: can coleoptera provide insights into changing discharge rates and floodplain evolution?

Smith

Howard

2004

Journal of Archaeological Science

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Using examples from dated alluvial deposits in the Trent basin, UK, this paper suggests that the waterlogged remains of insects, mainly beetles, can be used to detect the occurrence of varying discharge and changing patterns of flood-plain evolution in low gradient alluvial landscapes of Holocene age. This approach may provide invaluable data where the finer-grained nature of sedimentation means that other types of information such as coarse boulder berms are lacking. Comparison of Coleoptera assemblages from three high-energy and two lower-energy deposits indicates that a number of distinctive characteristics can be identified and criteria can be set for the distinction of these two contrasting depositional environments. This approach is tested using Coleoptera remains recovered from a palaeochannel fill at Spalford Meadows in the Lower Trent Valley. The application of this methodology could contribute to the reconstruction of river histories, a key factor in understanding the distribution of valley floor archaeological settlement patterns.

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Section: Introductionmentioning

confidence: 92%

Identifying changing fluvial conditions in low gradient alluvial archaeological landscapes: can coleoptera provide insights into changing discharge rates and floodplain evolution?

Smith

Howard

2004

Journal of Archaeological Science

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“…Natural controls typically operate over longer timescales than human disturbances (eg, Macklin et al, 1998;Coulthard and Macklin, 2001). Climate is the predominant control in UK river systems as it directly determines flow regime and indirectly controls glaciations, vegetation land cover and human land use (Howard et al, 2000). Several studies have demonstrated the impact that changes in climate and land cover over the Holocene period (since around 10,000 years ago) have had on river systems (eg, Knox, 2000;Coulthard et al, 2000;Macklin and Lewin, 2003).…”

Section: Drivers Of Morphological Change: Natural and Humanmentioning

confidence: 99%

Understanding sediment transfer and morphological change for managing upland gravel-bed rivers

Raven

Lane

Bracken

2010

Progress in Physical Geography: Earth and Environment

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Upland river systems constantly evolve in response to a wide range of complex and interlinked processes. These include internal factors such as the discharge, sediment supply and transfer, and the role of the channel boundary. All are influenced by external catchment-scale factors including climate and land use. Managing these systems to reduce flood risk, prevent bank erosion and preserve habitats is typically carried out without sufficient consideration of the complex interrelationships governing the fluvial system. This is partly due to a lack of broad-scale thinking and partly due to the intensive field-based data collection required to inform the processes. As such, decisions are often ill-informed, becoming unsuccessful or simply shifting the problems elsewhere in the system. Furthermore, the continually changing nature of rivers makes management more challenging as an implemented scheme is highly unlikely to remain effective in the long term. While upland catchment hydrology and the implications of climate and land-use change have received much attention in recent decades, in-channel interactions between sediment transfer and morphological change have been relatively neglected. These interactions are fundamental to flood risk, lateral channel adjustment, and habitat and ecology; thus, they require a more concentrated research effort. Central to this is a more holistic approach to catchment operations and a greater understanding of the links between the in-channel dynamics and broader catchment changes.

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“…As a result of a series of studies undertaken as part of the UK Natural Environment Research Council's Land Ocean Interaction Study (LOIS) community research programme between 1994 and 2000 in the Yorkshire Ouse basin (Taylor and Macklin, 1997;Hudson-Edwards et al, 1999;Howard et al, 2000;Macklin et al, 2000), the chronology of Holocene river development in the region is now underpinned by 60 14 C dates. This includes several sites on the Swale, Ure, Nidd and Wharfe at which the sequences of fluvial incision and fill have been established (as in Fig.…”

Section: Validationmentioning

confidence: 99%

Modelling differential catchment response to environmental change

2005

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Lewin, John, Coulthard, T.J., Macklin, M.G., (2005) 'Modelling differential catchment response to environmental change', Geomorphology 69(1-4) pp.222-241 RAE2008The CAESAR (Cellular Automaton Evolutionary Slope And River) model is used to demonstrate significant differences in coarse sediment transfer and alluviation in medium sized catchments when responding to identical Holocene environmental changes. Simulations for four U.K. basins (the Rivers Swale, Ure, Nidd and Wharfe) shows that catchment response, driven by climate and conditioned by land cover changes, is synchronous but varies in magnitude. There are bursts of sediment transfer activity, generally of rapid removal but with some sediment accumulation ?spikes?, with longer periods of slow removal or accumulation of sediment in different valley reaches. Within catchments, reach sensitivity to environmental change varies considerably: some periods are only recorded in some reaches, whilst higher potential sensitivity typically occurs in the piedmont areas of the catchments modelled here. These differential responses appear to be highly non-linear and may relate to the passage of sediment waves, by variable local sediment storage and availability, and by large- and small-scale thresholds for sediment transfer within each catchment. Differential response has major implications for modelling fluvial systems and the interpretation of field data. Model results are compared with the record of dated alluvial deposits in the modelled catchments.Peer reviewe

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Holocene river development and environmental change in Upper Wharfedale, Yorkshire Dales, England

Cited by 33 publications

References 41 publications

Identifying changing fluvial conditions in low gradient alluvial archaeological landscapes: can coleoptera provide insights into changing discharge rates and floodplain evolution?

Identifying changing fluvial conditions in low gradient alluvial archaeological landscapes: can coleoptera provide insights into changing discharge rates and floodplain evolution?

Understanding sediment transfer and morphological change for managing upland gravel-bed rivers

Modelling differential catchment response to environmental change

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