Sediment Transfer in Upland Environments

Higgitt, David; Warburton, Jeff; Evans, Martin

doi:10.1002/9780470712832.ch7

Cited by 8 publications

(5 citation statements)

References 56 publications

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“…If it is assumed that these pipes were not present between 1954 and 1962 (although no observations are available to support this other than the paired catchment comparison of pipe density and macropore flow) and we add the bypassing pipeflow to the gauged flow, then we can say that there has probably been a significant increase in water yield from Catchment N since the 1950s (see Table 2). Indeed, the increase would probably have been even greater had there not been substantial revegetation of the eroded Ne subcatchment since the 1960s (Higgitt et al, 2001). The problem of flow bypassing the weir did not occur in Catchment S because the gauging site was located at the natural topographic outlet for the catchment and most bypassing flow was still likely to flow via the gauge.…”

Section: Discussionmentioning

confidence: 99%

Impact of Land Drainage on Peatland Hydrology

et al. 2006

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There is a long history of drainage of blanket peat but few studies of the long-term hydrological impact of drainage. This paper aims to test differences in runoff production processes between intact and drained blanket peat catchments and determine whether there have been any long-term changes in stream flow since drainage occurred. Hillslope runoff processes and stream discharge were measured in four blanket peat catchments. Two catchments were drained with open-cut ditches in the 1950s. Ditching originally resulted in shorter lag times and flashier storm hydrographs but no change in the annual catchment runoff efficiency. In the period between 2002 and 2004, the hydrographs in the drained catchments, while still flashy, were less sensitive to rainfall than in the 1950s and the runoff efficiency had significantly increased. Drains resulted in a distinctive spatial pattern of runoff production across the slopes. Overland flow was significantly lower in the drained catchments where throughflow was more dominant. In the intact peatlands, matrix throughflow produced by peat layers below 10 cm was rare and produced <1% of the runoff. However, in drained peatlands, matrix throughflow in deeper peat layers was common and provided around 23% of the runoff from gauged plots. Macropore flow, the density of soil piping, and pipeflow were significantly greater in drained peatlands than in intact basins. Gradual changes to peat structure could explain the long-term changes in river flow, which are in addition to those occurring in the immediate aftermath of peatland drainage.

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Section: Discussionmentioning

confidence: 99%

Impact of Land Drainage on Peatland Hydrology

et al. 2006

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“…Hydraulic mining operations (hushing) (White, 1998), ore crushing (Bowes and Proud, 1984) and erosion of spoil heaps introduce sediment directly into channels, whilst deposition of phytotoxic fine sediment retards riparian vegetation growth, encourages bank failure and results in sediment inputs (Macklin and Lewin, 1989). Indeed metal mining is thought to have played an important role in historic channel changes throughout the Pennines (Macklin, 1986;Higgitt et al, 2001;Warburton et al, 2002;Wishart, 2004).…”

Section: Study Sitementioning

confidence: 97%

Gravel extraction and planform change in a wandering gravel-bed river: The River Wear, Northern England

2008

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“…However, they are also threatened by the loss of conservation values and by widespread erosion (e.g. Grieve et al 1995, Thompson et al 1995, Higgitt et al 2001, Holden et al 2007. It is predicted that peatlands will show heightened sensitivity to disturbance as a result of climatic change over coming decades (Bragg & Tallis 2001, Moore 2002; these threats and the subsequent risk of non-reversible damage are therefore expected to increase without active intervention.…”

Section: Case Study 2: Moorland Management Techniques (Question 79; Smentioning

confidence: 99%

Applications of Palaeoecology in Conservation~!2010-03-15~!2010-05-01~!2010-06-22~!

Davies¹,

Bunting²

2010

TOECOLJ

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We review several case studies (water quality, upland management, woodland management) where palaeoecological data are able to contribute to current debate in conservation practice and ecology, as part of a wider consideration of the relationships between palaeoecology and conservation. We conclude that, although there are structural and inherent barriers that currently limit flow of information and collective working, the current environment of challenging policy targets and rapid environmental change makes better collaboration particularly urgent.

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Sediment Transfer in Upland Environments

Cited by 8 publications

References 56 publications

Impact of Land Drainage on Peatland Hydrology

Impact of Land Drainage on Peatland Hydrology

Gravel extraction and planform change in a wandering gravel-bed river: The River Wear, Northern England

Applications of Palaeoecology in Conservation~!2010-03-15~!2010-05-01~!2010-06-22~!

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