Eric and list:
Thanks for this CDR-type lead.
Your link (a PR piece from Washington State University) gives this added
information:
Marc G. Kramer, Kate Lajtha, Anthony Audfenkampe. Depth trends of soil organic
matter C:N and 15N natural abundance controlled by association with minerals.
Biogeochemistry, 2017; DOI: 10.1007/s10533-017-0378-x
<http://dx.doi.org/10.1007/s10533-017-0378-x>
Robert B. Jackson, Kate Lajtha, Susan E. Crow, Gustaf Hugelius, Marc G. Kramer,
Gervasio Piñeiro. The Ecology of Soil Carbon: Pools, Vulnerabilities, and
Biotic and Abiotic Controls. Annual Review of Ecology, Evolution, and
Systematics, 2017; 48 (1): 419 DOI: 10.1146/annurev-ecolsys-112414-054234
<http://dx.doi.org/10.1146/annurev-ecolsys-112414-054234>
The second is non-fee (the first is not, but is on Research Gate); I
found both quite helpful on soil carbon content. There is no mention of CDR in
either, but I think the huge soil losses that they report show that there is
great potential in soil-based CDR methods, such as biochar.
Example sentences from the second: . "Globally, native soils lost on
average 43.1 ± 1.1% of their original topsoil carbon after conversion to
agriculture.”……….”The global SOC stock in the upper 2 m of soil is 2,273 Pg C,
with the boreal forest biome containing 623 Pg, or 27% of the global total.
(See the whole text before drawing conclusions; this just to show the type of
data provided.)
Ron
> On Nov 8, 2017, at 9:41 AM, Eric Durbrow <[email protected]> wrote:
>
>
>
> Summary is here (and includes links to abstracts):
> https://www.sciencedaily.com/releases/2017/11/171108092406.htm
> <https://www.sciencedaily.com/releases/2017/11/171108092406.htm>
>
> The gist: We probably have underestimated how much carbon can be stored in
> agricultural soil minerals (found in the first 3 feet or so) and changes in
> agricultural practices can significantly store more CO2.
>
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