Water quality

We will measure soil water in peat and streams at the flow weirs to determine basic quality indicators such as pH, DOC, POC. The peat and stream water colour will be monitored and will reveal linkages between management, vegetation, weather conditions and observed export of carbon via DOC and POC. We are using rhizon samplers to collect peat soil water (see Clark et al., 2012) and sample stream water at the flow weirs (which are located at the sub-catchment outlets).





https://sites.google.com/a/york.ac.uk/peatlandesuk/field-measurements/water-quality/DOC%20plots%20NMW%20all.jpg

Water sample DOC values (ppm or mg per L) across the three sites  before vs. after treatment started (March 2013) for monitoring PLOTS


https://sites.google.com/a/york.ac.uk/peatlandesuk/field-measurements/water-quality/POC%20export%20flow%20NMW%20all.jpg


Monthly POC export in stream flow based on flow weir samples (per ha) at all three sites during pre-treatment and post treatment periods (ie after mowing and burning early in 2013) - missing values due to drought (ie no flow) or pending analyses.




https://sites.google.com/a/york.ac.uk/peatlandesuk/field-measurements/water-quality/DOC%20slopes%20NMW%20all.jpg

Water sample DOC values (ppm or mg per L) across the three sites  before vs. after treatment started (March 2013) for SLOPES



https://sites.google.com/a/york.ac.uk/peatlandesuk/field-measurements/water-quality/DOC%20export%20flow%20NMW%20all.jpg


Monthly DOC export in stream flow based on flow weir samples (per ha) at all three sites during pre-treatment and post treatment periods (ie after mowing and burning early in 2013) - missing values due to drought (ie no flow) or pending analyses.


However, many other plant and soil processes impact on stream water quality



https://sites.google.com/a/york.ac.uk/peatlandesuk/field-measurements/water-quality/DOC%20flow%20NMW%20all.jpg
Water sample DOC values (ppm or mg per L) across the three sites  before vs. after treatment started (March 2013) for STREAM FLOW



Table outlining the annual estimate of POC and DOC carbon (C) export from each site:

Estimate p.a.: C POC (g m-2) C DOC (g m-2)
Nidderdale2.414.5
Mossdale1.021.1
Whitendale3.111.7




Table outlining the annual estimate of POC and DOC carbon (C) export from each catchment:


Control Treatment Control Treatment
Estimate p.a.
C POC (g m-2) C POC (g m-2) C DOC (g m-2) C DOC (g m-2)
Nidderdale 3.1 1.7 14.1 14.9
Mossdale 1.0 1.0 21.5 20.6
Whitendale 1.1 5.0 13.1 10.3



























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