siôn brackenbury, commons vision and aoife ryan, swansea university with inputs from professor a...
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![Page 1: Siôn Brackenbury, Commons Vision and Aoife Ryan, Swansea University with inputs from Professor A Street-Perrott, Phillip Harries and Robert Davidson Using](https://reader036.vdocuments.us/reader036/viewer/2022070409/56649e795503460f94b79c51/html5/thumbnails/1.jpg)
Siôn Brackenbury, Commons Vision and Aoife Ryan, Swansea University
with inputs from Professor A Street-Perrott, Phillip Harries and Robert Davidson
Using natural resources to improve ecosystem
resilience
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Habitat failing condition Rhododendron Control Biodiversity benefit?
1. Invasive Non-Native Species (INNS)
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2. Arisings 170 tonnes of phytomass per haDisposal by: •Burning•Decay in situ•Chipping/removal
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3. Pyrolysis• Energy production• Managed emissions • Creation of biochars• Sequestration within soils
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4: Amendment • Analysis of soils • Determination of key characteristics• Amendment of surface characteristics
Min
(mg/kg)
Max
(mg/kg)
Average
(mg/kg)
Normal
Background
Concentratio
ns (mg/kg)
Antimony 2 4 3.1 -
Arsenic 24.8 84.6 48.4 36
Beryllium 1.3 1.8 1.5 -
Cadmium 0 0 <0.1 1.4
Chromium 5.9 22.9 12.3 -
Copper 29 101 48.5 43
Lead 14 30 21.5 230
Mercury 0.1 0.2 0.2 0.25
Nickel 21.4 44.9 33.0 -
Selenium 2 4 2.8 -
Vanadium 10 18 14.2 -
Water soluble
Boron
0.2 0.5 0.3 -
Zinc 36 76 55.0 -
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5. MitigationCombination of materials:•Composted bracken•Biochars and amended biochars•Testing
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6. Habitat• Functional habitat?• Mixing within the soil profile• Immobilisation of metals• Sequestered carbon
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7. Monitoring requirements On-going monitoring:•Vegetation development•Soils – physical and chemical properties•Life cycle analysis•Quantified carbon sequestered
Time
Ecological economics
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Next steps: Experiments to mitigate impacts of INNS clearance on soils and biodiversity
Control Cleared Burned Dense
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2015 Pot trials are up and running………
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Contact:
Siôn BrackenburyCommons Vision Ltd
01994 240242
07879557740