Clad oct09 igrieve (nx_power_lite)
-
date post
20-Oct-2014 -
Category
Documents
-
view
382 -
download
0
description
Transcript of Clad oct09 igrieve (nx_power_lite)
![Page 1: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/1.jpg)
Peatland disturbance & DOC fluxes: Braes of Doune, a
case study
![Page 2: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/2.jpg)
Braes of Doune Windfarm
• Completed late 2006
• 400 ha site, 36 x 2 MW turbines, 20 km new roads
• Within River Teith Special Area of Conservation
• Altitude 370-540 m
• Mean annual precipitation 1600 mm
• Blanket peat soils
![Page 3: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/3.jpg)
![Page 4: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/4.jpg)
![Page 5: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/5.jpg)
![Page 6: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/6.jpg)
Disturbance: Pylons
![Page 7: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/7.jpg)
![Page 8: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/8.jpg)
![Page 9: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/9.jpg)
Disturbance: Roads & Drains
![Page 10: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/10.jpg)
![Page 11: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/11.jpg)
![Page 12: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/12.jpg)
![Page 13: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/13.jpg)
Disturbance: Redistribution of peat
![Page 14: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/14.jpg)
![Page 15: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/15.jpg)
![Page 16: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/16.jpg)
Mitigation??
![Page 17: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/17.jpg)
![Page 18: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/18.jpg)
![Page 19: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/19.jpg)
![Page 20: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/20.jpg)
Severie W
Annett
Severie E
Bheithe
Garvald
Criche
![Page 21: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/21.jpg)
![Page 22: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/22.jpg)
![Page 23: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/23.jpg)
![Page 24: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/24.jpg)
DateDist.
29/09/200813/02/200809/11/200709/10/200717/09/200707/09/200710/07/200715/10/2006y esnoy esnoy esnoy esnoy esnoy esnoy esnoy esno
35
30
25
20
15
10
5
0
DO
C m
g/L
Dissolved Organic Carbon, disturbed & control streams
![Page 25: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/25.jpg)
35302520151050
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
DOC mg/L
Abs
orba
nce
(400
nm
)
noyes
Disturbance
![Page 26: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/26.jpg)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0 50 100 150 200 250 300
Time h
Stag
e m
Dist ur bedCo nt r o l
0
5
10
15
20
25
30
0 50 100 150 200 250 300
Time h
DO
C m
g/L
Dist ur bedCo nt r o l
![Page 27: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/27.jpg)
Aqueous carbon fluxes
![Page 28: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/28.jpg)
![Page 29: Clad oct09 igrieve (nx_power_lite)](https://reader033.fdocuments.net/reader033/viewer/2022061109/5444f5f8afaf9fef2b8b460e/html5/thumbnails/29.jpg)
Conclusions
• Increased DOC in disturbed streams, but DOC losses small compared to potential C savings
• Annual DOC losses of 5 g m-2 may be significant in the context of blanket peat soils as a net carbon sink.
• Downstream impacts on water discoloration and light transmission, especially if coupled with elevated turbidity.
• But only one study!!