I am interested in making the link between biochar and carbon sequestration.
We have a major local practitioner of biochar here in the San Francisco Bay Area, Mark Vande Pol who has posted an introduction of his ecological restoration work at http://www.wildergarten.org/wildergarten/4trp-intro-history.pdf showing some of his work.
In your question you did not indicate what kind of plant material you were making into biochar, but I will assume trees? what I would do is measure the weight of the cut plants you are going to convert to biochar, and measure how much area of land that produced it, and if you can count tree rings, how long did it take to grow. Then weigh the biochar produced?
Thanks for the explanation and referenced source. We did use rice husk biomass. We have information of the total of the rice husk prior to the pyrolysis process as well as the total area. We also have information of biochar produced from each pyrolysis process.
How did you turn the rice hulls into biochar? What country are you working in? I have a project in Haiti and we would like to something like that with ag. wastes like that. See http://www.haitiag.org
The study was conducted at a village in the Vientiane Province in Lao PDR. We used range of slow pyrolysis methods to make biochar some of which are presented in a PPT presentation we delivered during a conference. Here is the link: http://www.slideshare.net/jmacedo1/enhancing-productivity-and-livelihoods-among-smallholder-irrigators-through-biochar-and-fertilizer-amendments-at-ekxang-village-vientiane-province-lao-pr
You could also visit this blog we set up for the project. It contains great stuff: http://jmacedo1.wordpress.com
Also, attached is a photo of a local system some farmers used to make biochar.
Jankins;
Can't you simply relate all Carbon in biochar as sequestrated carbon?
I mean, by doing a typical TGA test, where the humidity, ash content, and carbon is evaluated. I assume that all carbon comes from atmospheric CO2.
Unless I did not understand your question correctly.
Regards,
Houshang Alamdari can you please explain further, how you relate TGA, humidity and ash contents of biochar with carbon sequestration?
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