Monthly Archives: October 2013

Field Season 2014

Field Season 2014 has come to an end. It was a busy but successful summer in Alaska for the Mack Lab.

In our stands of black spruce and Alaska paper birch, we continued to monitor soil temperature, leaf litter inputs, soil N and P pools, and rates of litter decomposition.

Litter trap in a birch stand at Murphy Dome
Litter trap and moss transplant in a birch stand at Murphy Dome

 

We sampled forested areas that have been thinned to provide a shaded fuel break in the event of a wildfire. This information will be used with data collected in 2012 to quantify the impacts of forest management on carbon cycling, permafrost thaw, and plant succession post-management.

April sampling soils at a managed site
April sampling soils at a managed site

 

We installed soil temperature sensors in the soil profile to a depth of 1.5 m in areas recently burned and adjacent controls to quantify changes in permafrost following wildfire.

Camilo and April installing a temperature probe
Camilo and April installing a temperature probe

 

Simon McClung also harvested 10 year old tree seedlings from several sites in Interior Alaska to measure biomass and nutrient allocation.