Hill Grazings
Although the vast swathes
of the post-glacial period forest have disappeared from Wales a
number of woodland plants are still abundant in the hill grazings
that replaced them. Drifting through pastures of primroses
and bluebells reminds you that past generations of farmers - and
their animals – only modified the vegetation that surrounded
them. Today's upland farms impact the landscape in a much
more tangible manner.
In certain parts of Wales, recent generations
of farmers have been able to replace the vegetation by altogether
new means - by ploughing steep, previously inaccessible slopes,
reseeding with artificial grass mixes and fertilising.
Much of the remaining open landscape on our
hillsides represents the most abundant vegetation type left in
Wales - upland acid grassland.
Much of this grassland would once have
supported a diverse mix of heather moor, blanket bog or scrub
woodland. However, land drainage, and the appetites of so
many sheep, helped bring about today's grassy hillsides.
Mat grass is the most common species.
Sheep avoid this, as it is less palatable than other grasses and
herbs. Little wonder it covers such large areas of the
hillside.
Even so, nature seems to insist on colour. A
scattering of the yellow flowers of tormentil, the creamy white
blooms of heath bedstraw, and the soft pink, blue and whites of
milkwort - paint the poorest grasslands.