Geoscience Reference
In-Depth Information
Figure 14-7.
Clear cut (left side) for experimental agriculture in conifer forest at Teosaare (snail island) Bog;
artii cial drainage for improved forestry in left background; Endla Lake in right background. The agricultural
experiment was a failure as crop growth could not be sustained. Part of the Endla mire complex in east-central
Estonia. Kite aerial photograph by S.W. Aber and J.S. Aber.
Figure 14-8.
Peat mine at Ulila near Tartu, Estonia. The peat is burned in an electric power plant (smokestack in
right background). Many such operations were shut down after Estonia gained independence from the Soviet
Union. Photo by J.S. Aber.
fragments of undisturbed bogs remain (Fig. 14-
10; Masing, 1997).
The Estonian experience was repeated in
many other parts of central Europe. In northern
Poland, for example, Soviet construction of a
small i shing harbor at Władysławowo cut off
the supply of sand delivered via long-shore drift
to the Hel peninsula on the Baltic coast north
of Gda
maintained by pumping sand from offshore.
Poland's continued reliance on coal for industry
and power results in heavy air pollution, par-
ticularly during the winter heating season (Fig.
14-12). In some parts of the country, pollution
is so severe that water supplies must be pro-
tected to maintain quality (Fig. 14-13).
Substantial progress has been made, none-
theless, to preserve key natural monuments,
ń
sk (Fig. 14-11). The beach must now be
