Hi all
I have read a few more of the ESD papers and will be glad to report on any
that anyone has an interest in. But basically I found very little on the
current charcoal markets around the word that is helpful to either the stove or
biochar lists. There are some papers on costs and who is making the money (the
producers are getting only about 20-25% of the final sales price for products
that are mostly illegal, it seems). The whole charcoal business looks very sad
and is getting worse - as more charcoal is demanded from an ever growing
population. The reasons that charcoal is so widely used is that it is cheap
(often a better deal than wood) and the fossil alternatives are expensive and
not always available (even though heavily subsidized often). Plenty of calls
for more subsidization of fossil fuels to hep save both forest degradation and
increasing deforestation.
The charcoal conference in 2011 seems to have had no-one aware of either
charcoal-making stoves nor of biochar. At least I couldn't find it. Lots of
belief that there are ways to improve, especially through wood lots closer to
the cities. The char producers are themselves rarely using char - which mainly
goes to cities. So the chance for helping through improved char-making stoves
and biochar appears at this time to be in rural areas - at least until the
policy makers in heavy char-using regions learn about what we on these lists
are doing.
I found nothing to say that either char-making stoves or biochar are ideas
that won't work. But also nothing to prove they will, except for our
approaches are of course putting much less pressure on the threatened forests.
The evidence we have for future success isn't to be found in this special issue
or in the conference that preceded it.. We will have to rely on the success we
hear on these two lists.
One paper that showed up several times was from the World Bank
http://siteresources.worldbank.org/EXTAFRREGTOPENERGY/Resources/717305-1266613906108/BiomassEnergyPaper_WEB_Zoomed75.pdf
Another was
http://www.unredd.net/index.php?option=com_docman&task=doc_download&gid=3311&Itemid=53
or
http://webcache.googleusercontent.com/search?q=cache:PV8DnA44NRAJ:www.unredd.net/index.php%3Foption%3Dcom_docman%26task%3Ddoc_download%26gid%3D3311%26Itemid%3D53+&cd=1&hl=en&ct=clnk&gl=us
An interesting (and dismal) model is shown in Annex 2. at the end of which
is statement that the growth rate they assumed in a managed Eucalyptus
plantation was 20 times (50 m3/ha-yr) that from a natural forest in Tanzania.
Unknown weight of their m3. Shows there are better ways to make char than
illegally from natural forests.
2.5 m3/ha/year CHAPOSA 2002, Luoga et al. 2002Growth rate of planted
2.5 m3/ha/year CHAPOSA 2002, Luoga et al. 2002Growth rate of planted trees50
m3/ha/year Based on growth rates of fast-growing eucalyptus plantation
Ron
On Aug 17, 2013, at 4:08 PM, Ronal W. Larson <[email protected]> wrote:
>
>
>> Hi all
>>
>> This one on #9
>>
>> First though, I previously inadvetertently copied an address for REDD as
>> EDD. A lot of good free material on charcoal at a 2011 meeting, found at
>> http://redd.ciga.unam.mx/index.php/events/8-difusion/11-presentaciones2
>>
>> Also, ESD is Energy for Sustainable Development. See
>> http://www.sciencedirect.com/science/journal/09730826/17/2
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