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Re: Terra Preta
David,
I'm not a soil scientist, juat a landscaper, It's my understanding there are both anaerobic & arobic bugs, depending on soil horizon , soil condition, moisture and available gases etc.
TP seems to provide greater opportunity for them all, greater gas and moisture movment, cation exchange, and thus a continued benifit on up the soil food chain.
I guess regeneration results from the deeper horizons being exposed to more O2 and moisture. Even without addition of more char because this is an active system, worms and bugs will move more char up from lower horizons
Either dead or alive more bugs and microbes means more carbon. however only temporary juat as compost only locks up carbon for a few months until liberated by soil activity as CO2. The char is the way more perminant sequestration.
Erich
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