2010 Soil Respiration measurements

[[media/hc_2010_rs.png|width=350px|alt=2010 Respiration collars]]

Growing season 2010

  • Replaced chemical traps and bought 2 new batteries in July 2010.
  • Installed collars, 10 in each plot, on July 12.
  • First complete set of measurements (all 20 collars) at Hidden Canyon on July 23.
  • Further sampling days: August 14th, Sept 3rd, Sept 24th, Oct 16th.
  • Replaced collar T1 (0.5m west) on October 15th.
  • Forgot the temperature probes Oct 16th.

Fall/Early Winter 2010

  • Installed 18 snow inlets in early October
  • 6 each in plot 1 & 2 (3 around each profile), and 3 each in plot 3 & 4 (near Profiles 5 & 7).
  • Tubing ends need to be capped and the sampling protocol needs to be developed.

2011 Soil Respiration measurements

January-March (below snow)

  • Early Jan - Have finished capping and otherwise preparing the tubing ends to be accessed.
  • Jan 21 - First inlet samples taken. This was an incomplete set of samples.
  • Feb 18 - Second set of inlet samples (COMPLETE this time) taken. All samples, including Jan 21st set, were measured the next day (19th).
  • Mar 23 - Third set of inlet samples. Added a ~6000 ppm tank to calibration when measuring these (big red tank).
  • Apr 12 - Fourth set of inlet samples - these failed because the collection system was leaking.
  • April 15th, May 1, Mau 12, May 27, and June 7 completed the below snow season.
  • There was some water in the tubing on the last measurement date.
  • Concentrations got pretty high (8000ppm) but I haven't calculated fluxes yet.

July 13-14

  • Installed respiration collars on the evening of the 13th
  • Measured respiration on the morning of the 14th

Collar Locations: \^ Plot \^ Collar number \^ Location Desc \^ Coordinates \^ Notes \^ | 1 | 1 | Litterbags 1 | | | | 1 | 2 | Litterbags 2 | | | | 1 | 3 | Litterbags 3 | | | | 1 | 4 | Litterbags 5 | | | | 2 | 1 | Litterbags 2 | | | | 2 | 2 | Litterbags 3 | | | | 2 | 3 | Litterbags 5 | | | | 2 | 4 | Litterbags 6 | | | | 3 | 1 | Litterbags 1 | | | | 3 | 2 | Litterbags 2 | | | | 3 | 3 | Litterbags 4 | | | | 3 | 4 | Litterbags 5 | | | | 4 | 1 | Litterbags 2 | | | | 4 | 2 | Litterbags 3 | | | | 4 | 3 | Litterbags 4 | | | | 4 | 4 | Litterbags 5 | | | | 5 | 1 | Litterbags 1 | | | | 5 | 2 | Litterbags 3 | | | | 5 | 3 | Litterbags 4 | | | | 5 | 4 | Litterbags 6 | | | | 6 | 1 | Litterbags 2 | | | | 6 | 2 | Litterbags 3 | | | | 6 | 3 | Litterbags 4 | | | | 6 | 4 | Litterbags 5 | | |