Except for you're wrong. From Natural Resources Canada: 
"For the past century, Canada's managed forests have been a significant carbon sink, steadily adding carbon to that already stored. In recent decades, however, the situation has reversed in some years: Canada’s forests have become carbon sources, releasing more carbon into the atmosphere than they are accumulating in any given year.

Several factors have contributed to this shift. The annual total area burned by wildland fires has increased substantially. Unprecedented insect outbreaks have occurred. And annual harvest rates have shifted dramatically in response to economic demand, increasing in the 1990s and decreasing sharply with the global economic recession.

The combination of these events and activities has resulted in Canada’s managed forest acting as a net carbon source in years when large areas are burned."

http://www.nrcan.gc.ca/forests/climate-change/forest-carbon/13085