the astute observer notes the image to which you refer, and the subsequent assertions made based on that image were UNSOURCED!
and that is unsual for me, when i post a positive claim, i always put up the source, at least for the first 10-20 times i have to repeat myself. .
ohh you didnt notice??
sorry bucky...
that graphic and it's attendant numbers and assertions are from a Global Warming Hysterics site:
http://precariousclimate.com/2010/03/27/counting-carbon/
and their numbers came from...
as they say themselves in the caption below the picture:
"(Source: Pre-industrial values from IPCC AR4 WGI Figure 7.3; 2000s values from Global Carbon Project)"
thats right their numbers for natural Co2 emissions and sinks came from the IPCC itself!
http://www.ipcc.ch/publications_and_data/ar4/wg1/en/ch7s7-3.htm
which is reiterated here in their latest report
http://www.globalcarbonproject.org/global/pdf/IPCC_AR5_WGI_Chapter06.pdf
sorry bucky, but this one is a suppository.