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Originally Posted by malcolmf
Care please. That's soil carbon. Also the carbon in glomalin molecules is fairly insignificant (4-5% of total soil C at best) compared to the carbon trapped in glomalin-based aggregates. Hence "hiding place" in the USDA article's title. It is the aggregates that matter, just as it is aggregates (whether they turn out to be glomalin-based or not) that matter most to terra preta's properties.
M
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I am not sure I understand.
So the carbon "in" glomalin is in the soil aggregates that the filaments trap-
not actually a part of the living glomalin itself. Is that right?
So why talk about glomalin holding 30% or so of the soil's carbon. Are "aggregates" only made from carbon?? Surely not
If it is a symbiotic relationship with plants how do you tell when one starts and the other ends?
Why is glomalin seen as a carbon sink?
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This implies a high level of interdependence between the fungus and the root, so that the former is integrated into the root system and becomes part of it, depending on the host plant for its development, and the latter may also become highly dependent on the fungus, forming a compact, homogenous system. This is called a dual organism.
. . .
Glomalin agglomerates 27% of the total carbon on average,
. . .
ts capacity as a sink for the Earth’s carbon, extracting it from the atmosphere
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Micorrizas
