%0 Research Notes %T The functional grouping of mire ecosystems and their response to drainage %A Eurola, Seppo %A Huttunen, Antti %D 1990 %J Suo - Mires and peat %V 41 %N 1 %U http://suo.fi/article/9670 %X The results of inventories of drained peatlands have occasioned criticism of profitless drainage. For the better understanding of the mire ecosystem a functional and structural division of mires is presented. This is based on the nutrient cycle, the mire margin — mire expanse-effect, the carbon balance and the community structure of mire sites. The suitability for drainage is discussed on the basis of the ecology. A suggestion is made for further treatment of drained mire complexes. Keywords: Mire classification, mire site types