[Terrapreta] Indigenous burning

[Duane Pendergast]

            I think that's a good question Zane. I've asked it too.

 

http://www.computare.org/Support%20documents/Letters/Letters%202003/Forest%2
0Fire%2003_08.htm

 

These natural burning scenarios are likely well supplied with oxygen.
Burning would thus be fairly complete converting most of the carbon in the
grass to carbon dioxide and returning it to the atmosphere.   Maybe some
readers know of research directed at determining the charcoal content in
soils and the possible role natural fires played in building soils over a
few millennia.  

 

Duane Pendergast

 

-----Original Message-----
From: terrapreta-bounces at bioenergylists.org
[mailto:terrapreta-bounces at bioenergylists.org] On Behalf Of Zane Lewis
Sent: February 18, 2007 9:27 AM
To: terrapreta at bioenergylists.org
Subject: [Terrapreta] Indigenous burning

 

Hello

I have been wondering if the yearly burnings of the North American prairies
for thousands of years have added fertility to the soil.  Why did this not
create an Amazonian like dark soil?

Zane

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