[Terrapreta] Praire is natures way of making terra preta.

[Gerald Van Koeverden]

lou,

Glacial deposits are not soil...they are piles of ground up rock and  
gravel.  Soils are what develop on them over time, and how nature  
does that is what we are interested in.

gerrit

On 1-Sep-07, at 9:56 AM, lou gold wrote:

> Yes, very interesting suggestion. I also have been wondering about  
> the role of fire (natural and managed) in building soils in both  
> forest and grassland ecologies.
>
> I not sure where you are located but,  if you are speaking about  
> the deep soils of the US Midwest, they were mostly deposited by  
> glacial scraping of the lands to the north. Unlike, the Amazonian  
> dark earths they did not grow on site.
>
> lou
>
> On 9/1/07, Brian Hans <bhans at earthmimic.com> wrote:
> I have been musing about this statement for a while now. As far as  
> I know, Ive coined it.
>
> I think the hypothesis speaks for itself. After doing native  
> restorations, mostly prairies for over 10 years, bio-char in small  
> dose y/y seems quite likely to aid in the production of the  
> luscious prairie soils 6ft+ deep. Infact, the prairie ecosystem is  
> literally addicted to fire so bio-char is inevitable. I am going to  
> bring this topic up to some of my prairie academics this fall but I  
> was curious as to what the group thought?
>
> Brian Hans
>
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