Re: Kensington runestone Vegetation)in the Scandinavian press
- From: "Daryl Krupa" <icycalmca@xxxxxxxxx>
- Date: 12 Jun 2005 15:27:09 -0700
Alaca wrote:
<snip>
> The consequence is that we can't be sure about
> the structure of the vegetation on landscape level
> in the 14th century Kensington area.
>
> Here are some notes on the factor fire in different
> ecosystems from the DNR site.
<snip>
> Pine moraines & outwash plains
> Fire occurred on a 10-40 year rotation within
> much of the subsection, accounting for the
> dominance by upland conifers and trembling
> aspen-birch forests (Frissel 1973).
> Aspen parklands
> Fire was the most common natural disturbance
> before settlement. Fire suppression has allowed
> woodlands to develop from what was originally
> oak openings or brush prairies (Wheeler et al.
> 1992).
<snip>
Peter Alaca:
These two are most relevant ecotypes;
the latter more so.
FWIW, the few available pollen diagrams for
the general area indicate that parkland was
the dominant ecotype for the last couple of
thousand years.
-
Daryl Krupa
.
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