[Terrapreta] Tender offered for a design for a simple biocharcooker - or pre-made unit

[Sean K. Barry]

Hi Lou,

Albedo of soils can matter on open ground.  But, the albedo of plants is different than dark soil and I think the foliage shades the ground, preventing absorption of solar radiation.  Some crops may be different with this.  I've read somewhere that the photosynthetic output of Savanna is seven times higher than a crop of corn on the same area of land.  THere are no tractor wheel ruts , nor irrigation rows in Savanna, though.

Regards,

SKB
  ----- Original Message ----- 
  From: lou gold<mailto:lou.gold at gmail.com> 
  To: Frank Teuton<mailto:fteuton at videotron.ca> 
  Cc: Rob<mailto:robfox at adam.com.au> ; terrapreta at bioenergylists.org<mailto:terrapreta at bioenergylists.org> 
  Sent: Friday, November 23, 2007 4:15 PM
  Subject: Re: [Terrapreta] Tender offered for a design for a simple biocharcooker - or pre-made unit


  Oooops, are we now going to have too worry about some climate modeler arguing that darker soils will INCREASE global warming?



     and found a use for char as a soil darkening agent to
    increase solar gain for early springtime planting. 

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