Hi Vernon,
I think your tree data below may be a bit skewed. Deep flooding probably
means that the tree's bottom half was flooded with water but not that the
ENTIRE tree (the crown) was under water for that period of time. There is a
big difference in these two things. If a tree was submerged to several feet
or more above its top, I doubt that it could survive very long at all.
First, it would not be able to photosynthesize much like you would not be
able to breath, thus, death. Second, if it was that submerged and taking
into account probable currents under the water the whole thing would
probably be uprooted, thus, death.
I quote the following from your below reported web site:
"Tree injury increases in proportion to the percent of crown covered by
water. Species that can survive standing in several feet of water for months
may die in less than one month when their foliage is completely covered. Few
species can tolerate more than one month of complete submersion during the
growing season"
We should all be careful not to take information out of context for our
arguments.
Marque
>
>You may be interested to know the result of my internet search on the
>topic "trees
>tolerance to flooding". Here is an extract from Table 1 of
>http://www.na.fs.fed.us/spfo/pubs/n_resource/flood/toler.htm. It deals with
>the
>relative tolerance of trees and shrubs to flooding during the growing
>season, Lower
>Mississippi Valley and Missouri River Divisions. (source: Whitlow and
>Harris 1979):
>
>Fraximus pennsylvanica (a variety of ash) - very tolerant: able to
>survive deep,
>prolonged flooding for more than 1 year.
>
>We further read at http:/www.alphazee.com/olive-leaf/olea.html that
>the olive tree
>is a member of a plant family that includes the ash...
>
>A little simple arithmetic reveals that Noah's second sending out of the
>dove
>occurred some 271 days after the rains began. Clearly, therefore, we
>have no problem
>with the olive leaf!
>
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This archive was generated by hypermail 2b29 : Wed Jul 24 2002 - 22:38:47 EDT