[NAFEX] CO2 efflux vs temperature
jhecksel at voyager.net
Mon Mar 24 14:09:48 EST 2003
I thought this might be of interest to some of the list members.
A major university used a lot of high priced equipment to determine
that 87% of the carbon (organic material) burn rate in soil is due to
soil temperature. Actual mileage (or kilometerage if metric) will vary:
Temperature F, Temperature C, micromole CO2/m/m/s
50 10 3
60 16 5.5
70 21 8.4
80 27 12
So, cultivating soil might be "burning up" humus through soil
temperature effects rather than because it is "poking the embers" and
introducing more oxygen.
Shade that soil!
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