0
$\begingroup$

I need to convert organic carbon provided in kg C/m2 to percent. Any help would be appreciated.

$\endgroup$
2
  • $\begingroup$ Percent of what? $\endgroup$
    – Spencer
    Commented Sep 21, 2022 at 13:28
  • $\begingroup$ I mean to convert it to % without uint $\endgroup$ Commented Sep 21, 2022 at 20:57

1 Answer 1

2
$\begingroup$

To answer your question requires some assumptions. Firstly in what is meant by kg Carbon/m2? m2 is a measure of area, not volume. So you might quote carbon deposition in kg/m2/year - and that wouldn't meaningfully translate as a percentage. Or you need information on the depth of the soil that will hold the carbon. There are global maps that use kg Carbon/m2 as a unit, with an assumption that it is in the top metre. So 7 kg Carbon/m2 would be equivalent to 7 kg Carbon/m3. To convert that to a percentage you need information on the density of soils. Typical densities are 1.1 to 1.6 g/cm2, so assuming a density of 1.35 g/cm2 our 7 kg Carbon/m3 would be 0.7% Carbon. The calculation is complicated by the fact that actual soil density varies with moisture content and with organic matter - high Carbon soils are likely to have lower bulk densities, and so you shouldn't really use one density value for calculating a conversion.

$\endgroup$
0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.