Maatalouden ympäristötukiohjelma 2000-2006 : ohjelmaluonnos ympäristöpolitiikan typologiassa ja maatalouden toimijoiden tulkitsemana

Ennallistettujen soiden päiväperhosseurantaverkosto

Species richness and abundance of butterflies in natural and drained mires in Finland

[Introduction] Approximately half of Finnish peatlands have been drained for forestry. However, there is considerable variation regionally, and in particular in southern southern half of Finland ca 80-90 % of the original mire area has been ditched. Drainage was most intensive in 1960s and 1970s, but ditching has gradually decreased since that. Drainage has extensive effects on flora and fauna of mire habitats (Laine & al. 1995b, Aapala & Lappalainen 1998a, Aapala & Lappalainen 1998b, Vasander 1998, Heikkilä & al. 2002). Restoration of drained mires has began relatively recently and the research based knowledge of the ecological effects of the restoration are still forthcoming. Nevertheless…

Kasvien ja päiväperhosten esiintyminen luonnontilaisilla ja ojitetuilla soilla