Forest Service caught using misleading photo - Area shown suggested natural area but was actually logged

Donald L Ferrt wolfbat359 at mindspring.com
Sun Apr 18 11:00:27 EST 2004


"Bob Weinberger" <bobsstuff at verizon.invalid.net> wrote in message news:<Bdngc.6643$Aq.879 at nwrddc03.gnilink.net>...
> "Donald L Ferrt" <wolfbat359 at mindspring.com> wrote in message
> news:b9eb3efe.0404171453.46a02f0e at posting.google.com...
> 
> > You cheat grass which matures in June, offers an explosive understory,
> > just waiting to explode into the branches of pine trees, no matter how
> > high they are that native grasses that did not mature until August and
> > September did not!
> >
> <snip>
> 
> You're way off base with your analysis of the results of that study , and
> how it relates to the effect of cheatgrass on fires in Ponderosa Pine.
> While as the article you cite concluded that:
> 1. cheat grass burns very readily.
> 2. fires are more common on cheatgrass dominated lands than on lands where
> native grasses dominate.
> 3. cheatgrass matures into a flamable state much earlier in the season than
> native grasses.,
> all that is irrelevant to stand consuming fires in Ponderosa Pine forests
> (especially in stands of Mature PP) because:
> 1. while cheatgrass is extremely flammable, it is a very flashy fuel that
> burns extremely rapidly, but generates relatively low flame heights and
> temperatures.
> 2. the ecology of cheatgrass is such that it seldom is a significant
> presence under a tree canopy, and in those few cases where it is a majority
> species in the understory it tends to be rather unthrifty , producing
> relatively low fuel loads.
> 3. because cheatgrass matures and dries out early, by the time "normal" fire
> season arrives, often much of the fuel it has produced is laying on the
> ground, or is scattered and blown away.
> 
> While cheatgrass may be a significnt factor in the number of range fires
> that escape into the forest, once the fire is in actual forest cover,
> cheatgrass is rarely a factor that has enough impact on the situation to
> ever be a consideration in fire planning , actions, or preventative
> measures.


Which is totally dependent on Conditions:

http://www.cpc.ncep.noaa.gov/products/analysis_monitoring/regional_monitoring/palmer.gif

During the fire in Colorado near Fort Collins, which was grass
started, the green growth that was there on the ground was going up in
explosive embers!
You have to specify conditions!  If you had seen most of the homes
that went up in the Haymane fire in Colorado, you will see a lot
burned with no trees around at all; but a lot of grass!

 http://home.pcisys.net/~mnhaase/



More information about the Ag-forst mailing list