Tuesday, June 8, 2010

Pics from the bog





Down Spear Lake Rd there is a small bog on the east side of the road about 4km. down. I have been in here before only with my waders on and up above my knees in bog, this year I walked in with boots on. It shows just how dry things are.
Bog - an open peat-covered wetland that is characterized by soils consisting almost entirely of organic matter. Vegetation grows in a setting where the water table is high and nutrient availability is low. Water is derived from rain or from seepage from surrounding acid rocks and soils. The water is stagnant, or nearly so, and acidic. Vegetation consists largely of Sphagnum mosses, heath family shrubs, and certain sedge species. Trees, if present, form open-canopied forests of stunted growth. Peat forms a layer that exceeds 40 cm. Bog soils are strongly acid and low in calcium, magnesium and some other essential mineral elements. Oxygen levels in the water is low.
low in nutrients
rainfall and air-fall are the only sources of nutrients
isolated from external nutrient-carrying water
organic deposits greater than 40 cm deep
peat-rich, acidic
may be treed or open-Andy's northern Ontario wildflowers
Some of the most obvious plants are Sphagnum, Pitcher Plants (traps insects for their nutrient values), and sometimes Cotton Grass.

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