Wednesday, October 1, 2008

Wetlands

When is a wetland a bog or a swamp or a fen or a marsh? According to my math book, the classification is based on the pH levels of the water in the wetland.


I became curious so I checked Wikipedia. Along with other classifiactions, pH is indedd one factor for classification. "A bog or mire is a wetland type that accumulates acidic peat" according to the Wikigod. "Fens are characterized by their water chemistry, which is neutral or alkaline." "A salt marsh is a type of marsh that is a transitional intertidal between land and salty or brackish water..." Interesting stuff in math books!