嘩!好興奮呀!
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Dear (XXX),
Thank you for your interest in my web site.
"Cell walls of peat moss bind large amounts of nutrients, much more than the plant needs for its own survival, leaving the nutrient level of the surrounding water barely above that of distilled water. The cell walls function as ion exchangers. They rapidly absorb cations, such as calcium and magnesium supplied by rainwater, and, in exchange, release hydrogen ions into the water. Because hydrogen ions render the water acidic, bog water is almost as sour as undiluted vinegar (pH=3-4). Thus, peat mosses create and maintain a nutrient-poor, acidic environment that fosters their own growth but is intolerable to all but a small variety of highly-specialized other plants."
In fact, Sphagnum binds more nutrietents than it needs. What is left is suitable only for small and specialized plants, like for instance carnivorous plants, which cover their needs by feeding on insects. Sphagnum keeps its ion-binding ability also when it is dead. Have you ever seen a living bog? In the center are only sphagnum and its accompaniyng specialists.
The grass you can see in the foreground and the trees in the background are surrounding the bog being already outside. The center itself seems to be empty, its soil is pure sphagnum and some other very small plant species.
with kind regards
Eva Temsch |
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