Soil depth in some of these historic grasslands is also phenomenal. Those of you who wonder how industrial ag maintains itself dispite it's madness should look here. 4 meters of prime A horizon lets one abuse the land for generations without paying much penalty. Except dieing of cancer early. I have one of Foth's soil science texts, I'll have to crack it open again....
p. 142, "The composition of the atmosphere is the result of reactive
processes, and forests may be doing about 80% of the work, with the rest due to oceanic or aquatic exchange."
Hmmm. I thought there was a bigger contribution coming from the oceans. I remember seeing something on fertilizing the ocean with iron to boost the carbon sink effect there and bulk up the sea food production. What will the monkey people think of next ;<)
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