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Re: Treeplanting in Deserts



     Richard Fox (rcfox@igc.apc.org) President of Global Resource
     Consultants recently ADVERTISED a "remarkable technological
     breakthrough" called "The Eden Device" on this list.  According to
     Richard this device will enable you to "grow trees in the desert".

     This scenario reminds me of a novel called DUNE by Frank Herbert.
     Although I enjoyed the book very much (and the movie somewhat) I
     questioned the ecological logic of what the natives of DUNE (the
     fremen, I think) were trying to accomplish.  They were collecting all
     of the water they could from the planets surface and storing it in
     underground cisterns.  Their plan was to someday, when they had
     collected enough water, return this water to the surface to transform
     DUNE from a desert planet to an Eden.  During the time period of the
     book, the planet's surface was so dry that the fremen had to wear
     special suits to reclaim all moisture (such as from their breath,
     sweat and excrement).

     What has this to do with a device that allows you to grow trees in the
     desert?  If you capture water from the dry desert air you will create
     even drier conditions downwind.  Native plants and animals will
     suffer, if not be eliminated.  This could result in such trivial
     things as, oh, say, a dust bowl.  If the fremen return all of the
     water they removed from the planet surface they will have about what
     they started with (at best).

     I cannot understand why so very many people want to go to the desert
     and try to make it into a lush, green Eden  Supposedly a lot of people
     move to the desert to take advantage of the wide open spaces and clean,
     dry air.  If you visit the wide open spaces with clean air you will
     probably not see very many people.  That is because 99% of them live in
     big cities like Phoenix or Salt Lake City which have anything but clean
     air (have you seen the yellow brown muck that hangs over Salt Lake City
     lately).  I would think that the pollutants would outweigh the dry
     aspect of the air.  If you don't want to be in a desert then go
     somewhere else to live or grow trees.  The desert is a wonderful place,
     but it can only sustain a limited amount of use.

     One possibly appropriate application of such an "Eden device" would be
     in areas being subjected to desertification, and then only to
     reestablish native vegetation and not to support tree plantations.
     Someday humans will have to admit that they cannot control the weather,
     hydrologic cycles, etc.  Unfortunately it will take a major catastrophe
     in a (or several) well developed country(ies) to get that point across.
      When are we going to wise up????

     Just my $0.02 worth.  I will now get off my soap box and brace myself
     for the barrage of . . (replies).

     Bob Keeland, Forest Ecologist
     keelandb@osprey.nwrc.gov

     The opinions expressed are my own and do not reflect the views of my
     employer.




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