Ulteriori informazioni
Informationen zum Autor Martin Evans is a reader in geomorphology at the University of Manchester. Jeff Warburton is currently a reader in geomorphology in the Department of Geography at Durham University. Klappentext The Geomorphology of Upland Peat offers a detailed synthesis of existing literature on peat erosion, incorporating new research ideas and data from two leading experts in the field.* Presents the most detailed and current work to date* Written in a style that is both intelligent and accessible* Fully illustrated with original drawings and photographs* Relevant and information for a broad audience working on organic sediments in various environments Zusammenfassung Geomorphology of Upland Peat offers a detailed synthesis of existing literature on peat erosion, incorporating new research ideas and data from two leading experts in the field. This text will be relevant and informative for a broad audience working on organic sediments in various environments. Inhaltsverzeichnis Series Editors' Preface. Acknowledgements. 1. Introduction. 1.1 The aims of this volume. 1.1.1 Thematic coverage. 1.1.2 Geographical context. 1.2 Terminology, definitions and peatland geomorphology. 1.2.1 Definitions of Peat. 1.2.2 The Physical and geotechnical properties of peat. 1.2.3 Peatland classification. 1.3 The geography of blanket mire complexes. 1.4 Patterns of peat erosion in space and time. 1.4.1 The onset of peat erosion. 1.4.2 Direct observation of the onset of erosion. 1.5 Causes of peat erosion. 1.6 A brief history of the evolution of peatland geomorphology. 1.6.1 Accounts of erosion in the natural science tradition. 1.6.2 Descriptive accounts of widespread peat erosion. 1.6.3 Quantitative observations of blanket peatlands. 1.7 Structure of this volume and the peat land system model. 2. The Hydrology of Upland Peatlands. 2.1 Introduction. 2.2. Controls on water movement in peatland systems. 2.2.1 Hydraulic conductivity of upland peat soils. 2.2.2 The diplotelmic mire hypothesis. 2.2.3 Groundwater flow in upland peatlands. 2.2.4 Evaporation. 2.2.5 Runoff generation. 2.2.6 The Water balance of ombrotrophic mires. 2.3 Geomorphology and the hydrology of upland peatlands. 3. Sediment Production. 3.1 Introduction. 3.1.1 Monitoring sediment production using erosion pins. 3.1.2 Sediment trap data. 3.2 Sediment production as a control on catchment sediment flux. 3.3 Evidence from field observation. 3.3.1 Climate correlations with trap data. 3.3.2 Direct observations of surface change. 3.4 Evidence from controlled experiments. 3.5 Timescales of sediment supply. 3.6 Conclusion. 4. Fluvial Processes and Peat Erosion. 4.1 Introduction. 4.2 Gully erosion of blanket peat. 4.2.1 Gully morphology and topology. 4.2.2 Processes of Gully erosion. 4.3 Erosion and transport of peat in perennial stream channels. 4.3.1 Production of peat blocks by fluvial erosion. 4.3.2 Transport of peat blocks in stream channels. 4.3.3 The fate of fine peat sediment in channel. 4.4 Sediment yield. 4.4.1 A conceptual model of sediment dynamics in eroding blanket peatlands. 4.4.2 Sediment yield, sediment supply and assessing catchment erosion status. 4.5 Conclusions. 5. Slope Processes and Mass Movements. 5.1 Introduction. 5.2 Peat covered hillslopes. 5.2.1 Limits to the stability of peat on slopes. 5.2.2 Creep on peat hillslopes. 5.3 Morphology of rapid peat mass movements. 5.3.1 Source zone. 5.3.2 Rafted pe...
