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Sediment and particulate carbon removal by pipe erosion\ud increase over time in blanket peatlands as a consequence\ud of land drainage

By J. Holden

Abstract

Land drainage is common in peatlands. Artificially drained blanket peat catchments\ud have been shown to have a significantly greater soil pipe density than intact catchments.\ud This paper investigates the role of surface land drains in the enhancement of soil\ud piping in blanket peats. The density of piping was found to significantly increase in a\ud linear fashion with the age of the drainage. Thirty-five years after drains were cut, slopes\ud would be expected to have twice the density of soil piping than would an undrained\ud blanket peat catchment. The rate of pipe erosion increases exponentially over time, so that\ud particulate carbon loss from subsurface pipes is greatest where drains are oldest.\u

Publisher: American Geophysical Union
Year: 2006
OAI identifier: oai:eprints.whiterose.ac.uk:1599

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