HOW A raised bog IS FORMED
For thousands of years the way bogs form was mysterious. Now we know: After the last Ice Age 10,000 years ago, countless depressions and troughs were flooded by the melting glaciers. These lakes were gradually refilled with sediment over time, the decomposing remnants of the swamp plants forming layers of peat several yards thick and developing into damp boggy soil. These continue to grow, by 1 centimeter every 10 years. It can take 8,000 years for a bog to be fully grown.
The sedimentation of a lake is a natural process: Dead organic material (“mud”) collects at the bottom and does not decompose due to the lack of oxygen there. The peat acts like a filter by removing the nutrients from the water. Peat mosses thrive partic
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