Nature & Environment
Parc Taf Bargoed is a countryside park and is managed to
encourage wildlife. This means, unlike the
amenity parks in the borough, large areas of Parc Taf Bargoed are
kept wild to benefit nature. The park's species
list boast 77 species of birds and 19 species of
butterflies. If you are interested in getting
involved in wildlife survey on the park, have a look at
thevolunteer section or
contact the wardens
Habitats
Reedbeds
The park's
reedbeds are vitally important as they provide
an area of habitat that is very scarce in the
UK. Reedbeds have disappeared on a national
scale as traditional industries of thatching and basket weaving
have all but disappeared, meaning many reedbeds have been allowed
to go to wrack and ruin. This of course has led
to a massive decrease in the bird species that depend on this
habitat, such as the reed warbler, sedge warbler and water rail,
all of which have been recorded on the
park.
Even more
important for the park, however, is the ability of reeds to act as
natural water purifiers. As part of the
redevelopment of the valley the Coal Authority devised a water
treatment scheme, which utilises reed beds as a way of filtering
iron ochre and other impurities from the water.
The scheme, which is one of the largest of its type in Europe, is
on the former site of the Taff Merthyr Colliery and consists of
four large settlement lagoons, 16 reed beds and 100,000 individual
plants. Water pumped up from the old flooded
mineshaft is rich in iron ochre, giving it an orange appearance
which can clearly be seen in the lagoons that run alongside the
path. A pumping system aerates the water,
promoting oxidation of iron which settles out in the open lagoons,
before the water is passed into the reedbed system, where the
plants filter out any remaining iron ochre.
After passing through a number of different reedbeds, the water is
returned the Taff Bargoed River, which feeds the lakes, as pure and
clean water. Without the reedbed system, the
lakes would be heavily polluted, devoid of life and unsuitable for
human use.
Rivers, lakes and wetland.
The two
lakes on the park were created when the previously submerged Afon
Bargoed Taf was returned to the surface after the closure of the
mines that used to dominate the
site.
The water from the lakes continues through a system of
cascades, which have the potential to be harnessed in a
hydroelectricity scheme, and are a real feature when in full
flow. This provides excellent fast water habitat
for dippers, of which 3 pairs have been recorded nesting under the
park's bridges. These birds have been the
subject of surveys by students from Cardiff University.
The health
of the river and lakes is indicated by the presence of otter,
kingfisher, toad, frog and newt on the park. We
have even had a few possible sighting of water vole, a very rare
species! These creatures only thrive where the water quality is of
a very high standard.
Tree
beds
Fenced
tree beds cover a large area of the site and provide excellent
habitat for passerine bird species and mammals.
Tree species include, ash (Fraxinus excelsior), oak
(Quercus sp.),
hawthorn (Cratagus
monogyna), blackthorn (Rhamnus catharticus),
hazel (Corylus
acellana), holly (Ilex aquifolium), willow
(Salix sp.), alder
(Alnus glutinosa) and
silver birch (Betula
pendula). The understory is made up of
crab-apple (Malus
sylvestris), gorse (Ulex sp.) dog rose (Rosa canina) and bramble (Rubus fruticosus
agg). The wardens of the
park carry out a yearly bird nest record scheme and have found
nests of song thrush, goldfinch, chaffinch, long-tailed tit,
greenfinch and blackbird in the tree beds, illustrating how
important this habitat is to our resident birds.
Grassland
A change
to the grass cutting programme on the park has seen a marked
increase in the number and range of wildflower
species. The banks alongside the top lakes,
which were previously cut five or six times a year, are now left
untouched until the Autumn, long after they have
seeded. This will result in a wider range of
plant species which is beneficial for insects such as butterflies
and bees. The tall grass swathe will also
benefit other insects such as beetles, flies and
bugs. A similar programme has been agreed with
the Coal Board for the banks of the reedbeds, which are teeming
with insects during the summer
Woodland.
There is a
small section of adjoining Barri Woods which extends onto the
park. This mature woodland is ideal for a range
of species, including birds, mammals and plants.
Similar, habitat can be found running very close to the lakeside
boundaries of the park, which greatly benefits wildlife.
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