As MRT express the decay rate (average time that biochar can persist from decaying) and this rate decreases with time. Therefore, the incubation period becomes pivotal for the MRT calculation because shorter duration may lead to higher estimated mineralization rate and shorter MRT. So, can we consider other means of getting justifiable stability period?
please suggest a methodology for above.
My suggestion would be: simply
- set up a bench lysimeter or a "micro-cosm" made of your soil and your char, at the probable moisture degree of your site of interest;
- take yourself your volatile matter and CO2 readings; and
- draw the kinetic equation from the data.
Dear Shiv,
you may check following publications to get some ideas on how to proceed:
Enders et al 2012 10.1016/j.biortech.2012.03.022
Spokas 2010 10.4155/cmt.10.32
Kuzyakov et al 2014 10.1016/j.soilbio.2013.12
Wang et al 2016 10.1111/gcbb.12266
Harvey et al 2012 10.1021/es2040398
and more...
BR
Nils
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