[Gasification] char and gasifiers

[Tom Miles]

Reg,

The argument that Lehmann and others propose is that the charcoal is
recalcitrant - the carbon doesn't break down - so it is indefinite. It's
primary function is as a habitat for microorganisms that provide nutrients
to the plants.

Tom     

> It seems to depend a lot on how the char is produced and from what kind
> of biomass.  The main issue would appear to be for how long is the
> carbon sequestered?
> 
> Reg