<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 12pt; color: #000000'>Tom and Jeff:<br><br> In the absence of the concept of Biochar, I am sure that leaving as much around as possible is the best strategy from the point of view of soil health. But if we are serious about removing CO2 from the atmosphere through Biochar, and we generally believe that Biochar greatly helps most soils, I am guessing that there is today a different optimum. Any idea whether Scott Moser (or any forester) might have taken another look since Biochar's impacts on soils have been recognized?<br><br> (I also couldn't open either of the reports)<br><br>Ron<br><br><br>----- Original Message -----<br>From: "Tom Miles" <tmiles@trmiles.com><br>To: "Discussion of biomass cooking stoves" <stoves@lists.bioenergylists.org><br>Sent: Saturday, October 16, 2010 1:18:13 PM<br>Subject: Re: [Stoves] MUST CHARCOAL BE A CAUSE FOR CONCERN?<br><br>
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Chris Maser elegantly described
this process for our Pacific Northwest environment in his 1984 publication, "The
Seen and Unseen World of the fallen tree." Gen. Tech. Rep. PNW-GTR-164.
Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest
Research Station. 56 p http://www.treesearch.fs.fed.us/pubs/5625</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">There is an online chapter at www.fs.fed.us/pnw/pubs/164part2.pdf</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Unfortunately these references
seem to be offline at the moment. </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">A similar story can probably ne
told for most environments. </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);">Tom</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"> </span></p>
<p class="MsoNormal">On Sat, Oct 16, 2010 at 10:20 AM, Jeff Davis <<a href="mailto:jeff0124@velocity.net" target="_blank">jeff0124@velocity.net</a>> wrote:</p>
<p class="MsoNormal">Dear All,<br>
One statement that is constantly written on this list is, "use the small<br>
limbs from the trees and do not cut the whole tree." This is a false<br>
economy. A tree is a conductor of current, nutrients flow from the soil<br>
up the stem to the top of the tree then the leaves and limbs fall back<br>
down to the ground to be recycled. In this case the tree is not<br>
conducting electricity but nutrients. People need to be able to see this<br>
fundamental process. If you have the capacity to understand this you<br>
will see the reason for selectively harvesting the tree trunks and<br>
leaving the tops and small diameter wood. The nutrients in the tree are<br>
in the branches, bark and leaves, the stem having the least amount. It's<br>
also good to leave the bark in the woodlot. Otherwise, in time, you will<br>
kill off your woodlot. It is not the tree that cleans the air it is the<br>
whole system that cleans the air and if you steal the small diameter<br>
wood your essentially shorting out this system.<br>
<br>
It doesn't matter whether your fuel is wood, grass, weed or crop residue<br>
there still is a common denominator. If you care for the soil the soil<br>
will take care of your biomass.<br>
<br>
<br>
Best regards,<br>
<br>
<br>
Jeff<br>
<br>
<br>
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