In Estonia, mires currently cover about 6% and peatlands (former mires) cover about another 16% of the land area Types of mires: Minerotrophic fen is the first stage of mire development. In a minerotrophic fen, the peat layer is thin and the plants get their nutrients from groundwater. Minerotrophic fen vegetation is generally species-rich and lush, as the plants reach the groundwater. Today, most...