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nafex - [NAFEX] CO2 efflux vs temperature

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  • From: "Joe Hecksel" <jhecksel@voyager.net>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: [NAFEX] CO2 efflux vs temperature
  • Date: Mon, 24 Mar 2003 14:09:48 -0500

Hi all:

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!

--
Joe Hecksel
Personal Webpage http://my.voyager.net/~jhecksel




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