PL kra & kora - ekosystem river valey

Ecosystem in river valley.

Sometime grassland sometime deep forest. Usually very fertile land.
At winter the river froze. At spring fth floe flows. Frequently floe
do not cut the tree but scratch the bark. It is easy to observe that
tree losing bark also losing lives.

Beavers cut trees. Some time only cut trough bark. Willow bark is the
best what beavers like to eat. So the observation is double proved.

No bark on tree more sunlight, more fodder, more animals, more food,
better live standard.

Implications are self self-evident.
The people have to work to pool of the bark from trees (p_lach onm.).
It is rather easy work comparing to the benefits. Even if willow
bushes grove up it is still consumable fodder for bigger animals.

There should be plenty of movable wood in river valleys. If not
around then up the river.
Trees felled by flood, by beavers. Almost prefabricated.

It can't happen in Anatolia or Middle East. It should be winter and
freezing rivers. At lest freezing in north with floe transported down
the river.

Animals coming itself to river drink water.
They can just arrange the wood to have them on demand.

Isn't it looks like E den?

We can also add soft willow with spacious hollows for nesting bees to
make a plenty of meadow. Or for later time multi shaped stones and
ore.

I like sitting near river looking on the silently moving water and
think about the time when so obvious were the words kra and kora.
(floe and bark)


TB