[Terrapreta] Interesting article

[Edward Someus]

Folke, 
 
This is correct, but not the char directly is  increasing the microbial
activity after forest fire, but the fact that fire is re formulating the top
soil microbiological community (due to the high heat impact), and the char
has good water holding capacity as well, so new conditions developed, which
is favorable for certain microbes, so they recolonize. 

Of course there will be new microbiological conditions after forest fire,
but I have a feeling that multiple and parallele physico chemical and
microbiological phenomenons are wrongly connected to the TP char
applications, not to talk about the fact that TP is targeting food
production scenarion and not forest, where conditions are very much
different. The forest is different than agro, as you have leaves and fallen
trees.... aso, which the nature takes care of right away. 

Otherwise I note that there are many excellent scientific publications on
forest and prarie microbial activities not only from Sweden or Finland but
from Canada and USA as well. 

CHAR IS CATALYST in this process and not active substance. 

In agro application I make even new char reformulation by biotech means, but
for an efficient agriculture you must have healthy soil microbiological
community.

   

Sincerely yours: Edward Someus (environmental engineer)
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-------Original Message-------
 
From: folke Günther
Date: 2008.05.02. 16:24:27
To: 'Terra Preta'
Subject: [Terrapreta] Interesting article
 
In the latest number of Sciene, (2 May), David Wardle, Marie-Charlotte
Nilsson och Olle Zackrisson delivers an article: "Fire-Derived Charcoal
Causes Loss of Forest Humus", where they claim that charcoal particles
remaining after fire increase the microbial activity so tey break down humic
particles at a rate that counteracts the carbon sequestration effect of the
carbon.
I haven't read the article myself, but I am interested in he content. I
asked David Warle for a pdf.

FG

-- 
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Folke Günther
Kollegievägen 19
224 73 Lund
Sweden
Phone: +46 (0)46 141429
Cell: +46 (0)709 710306
URL: http://www.holon.se/folke
BLOG: http://folkegunther.blogspot.com/ 
 
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