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Page 1: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Peatland Restoration for Water Regulation

Jonathan Price (University of Waterloo)

Tim Allot, Martin Evans (University of Manchester)

Joint British Ecological Society and IUCN UK Peatland Symposium 2012 - Investing in Peatlands - Demonstrating Success

Introduction Context Peak District Conclusion Bois-des Bel

Page 2: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Peatland Restoration for Water Regulation Water Restoration for Peatland Regulation

Introduction Context Peak District Conclusion Bois-des Bel

Blanket bog; Peak District, UK Lowland bog; Bois-des-Bel, QC, Canada

Page 3: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Degraded peatlands compromise water quality

• Gully erosion and bare peat

• Grips and peat drainage

• Water table drawdown

• Reduced peat accumulation

• Aerobic decomposition

Degraded peats and pollutants • Reduced/zero C, SO4,NO3, NH4, metal accumulation

• Transformation from sink to source

Drainage waters • High POC • Increased DOC • Increased SO4 and NO3 • Increased acidity • Elevated metals and toxic substances

Image from Holden et al (2007)

Introduction Context Peak District Conclusion Bois-des Bel

Page 4: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Progress of re-vegetation over 5 years

Introduction Context Peak District Conclusion Bois-des Bel

Page 5: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Introduction Context Peak District Conclusion Bois-des Bel

Page 6: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

-100

0

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WaterTableDepth(mm)

Hourlywatertabledata:August-November2008

Intact BarePeat Re-vegetated

Introduction Context Peak District Conclusion Bois-des Bel

Page 7: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Re-vegetation shuts down suspended sediment production and release

= data from intact reference site Evans M and Worrall (2009) NE Report

Sediment Loads gC m2 a-1

Joseph South 4.07

Joseph North 1.43

Trenches North Hi 157.64

Trenches South 804.42

Control 1.87

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0.001 0.01 0.1 1 10 100 1000

Q Ls-1km-2

SS

C m

g/l

Introduction Context Peak District Conclusion Bois-des Bel

Page 8: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Introduction Context Peak District Conclusion Bois-des Bel

Page 9: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Bois des Bel

Introduction Context Peak District Conclusion Bois-des Bel

Page 10: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Introduction Context Peak District Conclusion Bois-des Bel

Page 11: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Introduction Context Peak District Conclusion Bois-des Bel

VMC

Page 12: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Introduction Context Peak District Conclusion Bois-des Bel

• Vegetation communities returned • 2010 (dry) C source < natural site • Vascular plants compensate for moss

Page 13: Context Peak District Bois-des Bel Conclusion Peatland … · 2019-04-05 · Peatland Restoration for Water Regulation Jonathan Price (University of Waterloo) Tim Allot, Martin Evans

Peatland Restoration for Water Regulation

Hydrology Vegetation Topography

Water deficit

• Define appropriate, realistic restoration objectives • Establish a method • Monitor / Wait / Assess

Introduction Context Peak District Conclusion Bois-des Bel

(Bio)geochemistry and soils

Eroding blanket bog Harvested lowland bog


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