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Re: Scientists Turn Carbon Dioxide Emissions into Stone

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songbird wrote:
> cowbird wrote:
> ...
>> Plant roots exude a wide range of carbon
>> based compounds. Some of them are natural
>> herbicides and pesticides.
>>
>> But the most important root exudation for
>> building soil carbon are carbohydrates that
>> feed beneficial organisms that in return
>> deliver nutrients to the roots. Without
>> those beneficial organisms and the carbon
>> compounds they build in the soil,  the plants
>> require much higher inputs of fertilizer and
>> water and are much more susceptible to disease
>> and pests. And of course the stupid response
>> to that problem is to dump enormous amounts
>> of toxic chemicals on the plants which adds
>> to the problem of soil carbon depletion by
>> killing the beneficial organisms.
>
>    over the longer term, feeding the bacteria
> population by such compounds is only a part
> of the picture.  for humus it is the plant
> parts that decay which last longer.

Sorry but that's not even close to being right
if we are talking about healthy soil that
is rich in carbon. It might be true for soils
that are depleted in carbon.  But relying in
dead plant parts for the soil's carbon is a
major reason those soils are depleted.

The half life of dead plant material buried in
soil tends to be less than a year while the
half life of glomalin is more than a decade.
http://agresearchmag.ars.usda.gov/2002/sep/soil

The reason conventional agriculture has destroyed so
much carbon in the soil is because it does not support
the natural process of carbon creation by organisms
that have symbiotic relationships with plant roots.
The plants supply the carbon through their toots and
the organisms turn it into more stable compounds that
eventually make up a significant part non-living organic
components of healthy soil.


>
>    if you have some fires going through at
> times to form some chars then you get carbon in
> a more stable form (often with vastly more
> surface area for bacterial populations).

turning plant organic matter into char does appear
to create a more stable form of soil carbon, but
there also appears to be soil organisms involved

>
>    btw, terra preta is composed of more than
> just carbon.  it is also evidence of a
> complicated society and large population...
>



>
>    songbird
>

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Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-14 07:53 -0500
  Re: Scientists Turn Carbon Dioxide Emissions into Stone Sergio <invalid@invalid.com> - 2016-06-14 11:12 -0500
  Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-14 17:59 +0000
    Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-14 15:25 -0500
      Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-14 23:52 +0000
        Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-14 19:41 -0500
          Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-15 01:29 +0000
            Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-14 21:44 -0500
              Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-15 03:28 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-15 09:49 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-15 17:17 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone Sergio <invalid@invalid.com> - 2016-06-16 09:44 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 10:12 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone Sergio <invalid@invalid.com> - 2016-06-16 10:43 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 13:28 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone Sergio <invalid@invalid.com> - 2016-06-17 08:02 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-17 12:27 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-16 13:54 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 20:54 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone cowbird <user@domain.invalid> - 2016-06-16 16:16 -0500
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jimp@specsol.spam.sux.com - 2016-06-16 21:57 +0000
                Re: Scientists Turn Carbon Dioxide Emissions into Stone Eric Stevens <eric.stevens@sum.co.nz> - 2016-06-17 11:47 +1200
                Re: Scientists Turn Carbon Dioxide Emissions into Stone songbird <songbird@anthive.com> - 2016-06-16 11:50 -0400
                Re: Scientists Turn Carbon Dioxide Emissions into Stone jim <""sjedgingN0Sp\"@m@mwt.net"> - 2016-06-21 18:34 -0500

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