[Homestead] Allan J. Yeomans' carbon sequestration theory

Gene GeRue genegerue at ruralize.com
Thu Jan 31 09:39:04 EST 2008


I wrote:

If in fact this is what he is saying, then he needs to provide the  
scientific research that supports his numbers. He postulates twenty  
percent organic matter in soil. I have been an organic enthusiast for  
decades and I have never seen anyone suggest such a number is feasible.

To check myself, I did a search and found this table of percentages of  
organic matter in various soils:

Table 1. Organic matter in native and cultivated soils (per cent)

Soil zone	
Virgin
Cultivated
Brown	3-4	2-3
Dark Brown	4-5	3-4
Black	6-10	4-6
Dark Gray	4-5	2-3
Gray	1-2	1-2


http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex890?opendocument


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