hmmm... well, yes, you are correct, although countries that joined Annex I after Annex B targets were announced are still considered Annex I but are not in Annex B (I believe Kazakhstan is one of them). But yes, overall you're right. I'm sufficiently humbled :-)
As for forest carbon losses- I've seen that paper, and the one thing that bothered me about it was that there was very little discussion of methodology of harvest effect on soil carbon. Although they noted that bole removal was significantly different than whole tree removal (only bole removal results in an increase in C whereas whole tree removal results in decrease of C) they did not discuss the physical disturbance to the soils from large scale intensive logging operations, which in a lot of cases result in massive disturbance to the soil floor, akin to the changes resulting from plowing. Such disturbance is likely to affect soil carbon dynamics in the short term. The other aspect that is difficult to quantify is that soil carbon is not a homogeneous pool, and just because there is x grams of carbon per y kg of soil in both sites does not mean that they are equivalent. In a lot of cases the carbon that is in the soil after a harvest is labile carbon, and not the recalcitrant stuff that has a long residence time... although I need to look into this more, I've mainly been focused on climate effects on non-disturbed ecosystems...
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Re: I differ
Date: 2007-04-11 11:14 pm (UTC)As for forest carbon losses- I've seen that paper, and the one thing that bothered me about it was that there was very little discussion of methodology of harvest effect on soil carbon. Although they noted that bole removal was significantly different than whole tree removal (only bole removal results in an increase in C whereas whole tree removal results in decrease of C) they did not discuss the physical disturbance to the soils from large scale intensive logging operations, which in a lot of cases result in massive disturbance to the soil floor, akin to the changes resulting from plowing. Such disturbance is likely to affect soil carbon dynamics in the short term. The other aspect that is difficult to quantify is that soil carbon is not a homogeneous pool, and just because there is x grams of carbon per y kg of soil in both sites does not mean that they are equivalent. In a lot of cases the carbon that is in the soil after a harvest is labile carbon, and not the recalcitrant stuff that has a long residence time... although I need to look into this more, I've mainly been focused on climate effects on non-disturbed ecosystems...