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The Glenullin Bog lies in a floodplain within a watershed that drains
to the River Bann. As our understanding of bogs and other floodplain
elements grows, we increasingly recognise the importance of conserving
and restoring the natural resources and functions of these floodplain
resources.
In the past, bogs and other wetlands were not highly thought of and
were often referred to as wastelands. We now know this isn’t
so, that bogs are really wonderlands. However, many wetland terms continue
to have negative connotations. For example, someone may say he or she
is “swamped”, in a “mire”, or “bogged
down.”
Recognised benefits of a naturally functioning bog include the storage
and slow release of flood waters, recharge of ground water and aquifers,
maintenance of surface water quality, and provision of habitat for
fish and wildlife.
Bogs, as a floodplain resource, differ from other natural resources
in the following way: the term “natural resource” often
brings to mind products such as timber or fossil fuels that may be
extracted from their natural environments and sold as commodities for
profit. But, as with other floodplain resources, the natural value
of the Glenullin Bog resource lie not in its removal and sale, but
in the functions the bog performs in its natural environment. Bog benefits
include:
• Ground water and surface water quality and quantity
• Recharge of ground water
• Water retention and peak flood reduction
• Excess nutrient removal, plant and animal habitat
• Scenic value
• Inspiration for the arts
• Educational opportunities
• A source of community identity and pride
• Other valuable functions
As with many wetlands, the Glenullin Bog may be considered the community’s
natural “infrastructure”. Community leaders are uniquely
positioned to tap these bog resources for the benefits they may serve
the community.
Many species of animals depend on the bog at some point during their
life-cycle as it is classified an “edge” habitat – a
transition zone between the water’s edge and upland habitat.
The Glenullin Bog drains into the Agivey River which joins the Aghadowey
River further downstream about one km before reaching the River Bann.
It is said that the rivers of Northern Ireland are unspoiled. The
good water quality of the rivers is beneficial to fish. Wetland vegetation
function as spawning beds. Salmon spawn in wetlands, including bogs
like the one located in Glenullin. Bog vegetation moderates water flows
which prevents eggs and fry from being carried downstream by river
currents where they are often lost to predation, the sea, and poor
hatching conditions.
A representative from the local Anglers Club estimated that the salmon
population has dropped approximately 30 percent over the last 40 to
50 years, and would like to see it return to the numbers of fish he
had seen as a child. Drift nets at sea, pollution from fertiliser,
and decrease in available spawning beds due to habitat loss have had
a negative impact on the salmon population.
An intrinsic value of wetlands is their ability to function as the
kidneys of the watershed as they filter and absorb impurities and excess
nutrients. Impairment of wetlands like the Glenullin Bog reduces their
natural ability to absorb pollutants such as that which comes from
silage discarded by farmers in springtime. Silage from blood and milk
causes problems for fish because it depletes the dissolved oxygen fish
need to survive. This may result in a fish kill.
Reducing pollution from silage and other sources would help maintain
and augment fish populations. However, the loss sustained by continuing
draining of the Glenullin Bog would further diminish its ability to
absorb nutrients. The Glenullin Bog functions as a source for drinking
water downstream and may also serve as a source for ground water in
the area that supplies water to local private well users. Uptake for
reservoirs and drinking water are found further north in the River
Bann. The Glenullin Bog’s natural ability to absorb excess nutrients
and impurities, thereby maintaining water quality, needs to be considered
in any decision that might impact on it.
The Glenullin Bog is the heart and soul of the community. While the
bog provides multiple benefits, ideas about how to manage the bog and
its future varies among community residents. Not everyone in the community
is in agreement with the importance of protecting the bog. Therefore,
planning for its protection and restoration is recommended to avoid
losing the assets it provides.
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