Upland Peats - Management Assessment
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UPLAND PEATS - MANAGEMENT ASSESSMENT Revised Final Report - Volume 1 October 2010 English Heritage Issue No: 2008-9/850 OAN Job No: L9200 Title UPLAND PEATS, MANAGEMENT ASSESSMENT Authors Elizabeth Huckerby, Jo Cook, Jamie Quartermaine, Paul Gajos Derivation MAIN Origination date October 2010 Reviser Elizabeth Huckerby and Jamie Quartermaine Date of this, latest, 11th January 2011 version Version 3.0 Status Final Summary of changes As per EH letter of September 2011 Circulation English Heritage: Helen Keeley, Kath Buxton Required action File name/location uppeats_final_19102010.doc Approval: Jamie Quartermaine (Project Manager) Rachel Newman (Project Executive) On behalf of English Heritage Oxford Archaeology North © Oxford Archaeology Ltd (2010) Mill 3 Janus House Moor Lane Mills Osney Mead Lancaster Oxford LA1 1GF OX2 0EA t: (0044) 01524 541000 t: (0044) 01865 263800 f: (0044) 01524 848606 f: (0044) 01865 793496 w: www.oxfordarch.co.uk e: [email protected] Oxford Archaeology Limited is a Registered Charity No: 285627 Disclaimer: This document has been prepared for the titled project or named part thereof and should not be relied upon or used for any other project without an independent check being carried out as to its suitability and prior written authority of Oxford Archaeology being obtained. Oxford Archaeology accepts no responsibility or liability for the consequences of this document being used for a purpose other than the purposes for which it was commissioned. Any person/party using or relying on the document for such other purposes agrees, and will by such use or reliance be taken to confirm their agreement to indemnify Oxford Archaeology for all loss or damage resulting therefrom. Oxford Archaeology accepts no responsibility or liability for this document to any party other than the person/party by whom it was commissioned. Upland Peats Management Assessment - Final Report: Volume 1 1 CONTENTS VOLUME 1 CONTENTS ................................................................................................................. 1 ACKNOWLEDGEMENTS .............................................................................................. 6 SUMMARY.................................................................................................................. 9 1. INTRODUCTION ....................................................................................................11 1.1 Contractual Background to the Upland Peat Project......................................11 1.2 The Upland Peatland Resource.....................................................................12 1.3 Threats to the Upland Peats ..........................................................................15 1.4 Aims of the Study.........................................................................................15 1.5 Objectives ....................................................................................................17 1.6 Study Areas..................................................................................................18 1.7 Structure of the Report .................................................................................21 2. PEAT LOSS AND THREATS....................................................................................23 2.1 Introduction..................................................................................................23 2.2 Extent of Peat Loss from Upland Environments............................................23 2.3 Historical Peat Loss......................................................................................26 2.4 Drainage.......................................................................................................28 2.5 Climate.........................................................................................................32 2.6 Pollution.......................................................................................................36 2.7 Farming........................................................................................................37 2.8 Forestry........................................................................................................45 2.9 Recreation ....................................................................................................53 2.10 Fire...............................................................................................................59 2.11 Peat Cutting..................................................................................................73 2.12 Masts and Wind Farms .................................................................................75 2.13 Conclusions..................................................................................................76 3. UPLAND PEAT DATASETS.....................................................................................79 3.1 Introduction..................................................................................................79 3.2 Graphic Datasets ..........................................................................................79 3.3 Palaeoenvironmental Datasets ......................................................................82 4. IDENTIFICATION OF ARCHAEOLOGY – A METHODOLOGICAL CASE STUDY........85 4.1 Introduction..................................................................................................85 4.2 Fieldwalking / Peat Scar Prospection............................................................86 4.3 Probing.........................................................................................................88 4.4 Test Pitting ...................................................................................................90 4.5 Geophysical Survey......................................................................................91 4.6 Palaeoecological Methods ............................................................................93 4.7 Methodological Assessment .........................................................................97 For the use of English Heritage OA North October 2010 Upland Peats Management Assessment - Final Report: Volume 1 2 5. SUMMARY OF THE CASE STUDIES ......................................................................102 5.1 Introduction................................................................................................102 5.2 South-West Fells ........................................................................................102 5.3 The Langdale Fells .....................................................................................104 5.4 Forest of Bowland ......................................................................................106 5.5 Anglezarke Moor........................................................................................108 5.6 Conclusions................................................................................................109 6. UPLAND PEATLAND ENVIRONMENT...................................................................111 6.1 Introduction................................................................................................111 6.2 Peat Inception.............................................................................................111 6.3 Peat Condition............................................................................................115 6.4 Relationship of the Archaeological Resource to Peat Development.............120 7. ARCHAEOLOGICAL POTENTIAL OF THE UPLAND PEATS....................................126 7.1 The Potential of the Uplands.......................................................................126 8. THE DEVELOPMENT OF A MODEL.......................................................................130 8.1 Introduction................................................................................................130 8.2 Mapping the Extent of the Peat...................................................................130 8.3 Creating the Threat Model..........................................................................131 8.4 Results: the Threat Model...........................................................................135 8.5 Creating the Archaeology Model ................................................................140 8.6 Results: the Archaeology Model.................................................................142 8.7 Combining the Archaeology and Threat Models for the South-West Fells ..145 8.8 Conclusions................................................................................................146 9. RECOMMENDATIONS FOR THE MANAGEMENT OF THE UPLAND PEATS ..............149 9.1 Introduction................................................................................................149 9.2 Threats Affected by Planning Controls .......................................................149 9.3 Most Significant Management-Related Threats...........................................150 9.4 Higher-Level Stewardship Scheme.............................................................152 9.5 Introduction to Landscape Assessment .......................................................155 9.6 Aims of Landscape Assessment..................................................................156 9.7 Introduction to Methodology ......................................................................158 9.8 Stage 1 - Data Capture................................................................................158 9.9 Stage 1: