[Terrapreta] C02 Tree Capture – how much carbon dioxide do trees really capture?

[lou gold]

Hi All,

I believe the situation is quite different between Australia and the
temperate rainforests of North America. They are much more like their
tropical relatives.

Albido is tricky -- it narrows the concern to reflectance. The big
difference occurs with evergreen forests in snow zones. If there was no
forest and therefore more snow cover, there would be more wintertime
reflectance. But this narrow model doesn't necessarily consider all the
ecosystem functions performed by the forests and what happens in all
seasons.

(tree) hugs,

lou

On Dec 14, 2007 10:32 AM, Michael Bailes <michaelangelica at gmail.com> wrote:

> As far as I can see tropical forests do store CO2 and help global cooling.
>
> Despite a couple of promising research papers I don't thing the jury can
> yet decide about what happens in temperate forests.
>
> there are other issues involved not just CO2. trees exhale a lot of water
> vapour (the major green house 'gas') and the level of this in the air is
> rising.
>
> Then there is the albido effect.
> Do all forests absorb or reflect light?
> In Australia I would go for reflect.
>
> Then there are wildfires contribution to planetary Co2.
> (Australian forests should be regularly burnt to manage them properly.)
>
> Then there is the soil micro-organisms and what they are exhaling
>
> The University of Western Sydney has started on a long term study of
> Australian tree growth trying to measure and control as many variables as
> possible.
>
> To produce char we have billions of tonnes of waste. erich knight quotes a
> figure somewhere.
> After we burn that  maybe then we might start on the forests.:)?
> I would hope by then solar panels on every roof would replace burning coal
> for electricity.
> MA
>
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-- 
http://lougold.blogspot.com/
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