Wetlands Project Grade 5 LES

1. By Nathaniel
the Great

2. Most bogs are commonly found in the
entire northern hemisphere in previously
glaciated areas.
Mostly the arctic and sub-arctic regions.

3. Bogs are characterized by substantial
peat accumulation (<40 cm)
Bogs are covered with a layer of floating
vegetation which may look like solid
ground.
Bogs have high water tables and acidic
loving plants.

4. In bogs they can look cool. But parts of the bogs
can be dangerous to mankind. Bogs are
covered with a layer of floating vegetation
which can trick the human eyes which would
make you think that it would be solid ground.
The acidity of a bog is a pH of 3.5- 4.3 which I
would find VERY acidic. Bogs are not a place
to play around in.

5. Valley Bogs
These develop in gently sloping valleys or hollows.
A layer of peat fills the deepest part of the valley,
and a stream may run through the surface of the
bog. Valley bogs may develop in relatively dry and
warm climates, but because they rely on ground or
surface water, they only occur on acidic substrates

6. Raised bog
These develop from a lake or flat marshy area, over either
non-acidic or acidic substrates. Over centuries there is a
progression from open lake, to marsh and then (or on acidic
substrates, valley bog), as silt or peat fill the lake. Eventually
peat builds up to a level where the land surface is too flat for
ground or surface water to reach the center of the wetland.
This part therefore becomes wholly rain-fed and the
resulting acidic conditions allow the development of bog
(even if the substrate is non-acidic). The bog continues to
form peat, and over time a shallow dome of bog peat
develops: a raised bog. The dome is typically a few meters
high in the center, and is often surrounded by strips of fen or
other wetland vegetation at the edges or along stream sides,
where ground water can percolate into the wetland.

7. THIS IS A VALLEY
BOG AS
PREVIOUSLY
EXPLAINED
This is a blanket
bog. It has not
been explained.

8. This is a raised bog.
These develop from a lake or
flat marshy area, over either
non-acidic or acidic
substrates.
This is a quaking bog. I have
no information about this
kind of bog due to space
issues.