Where the ground is permanently wet, only those trees that can cope with the water logging survive. Willow and Alder are both suited to these conditions and can form a dense woodland canopy over standing water. Wet woodland was previously more extensive in Wales but much has been felled and drained to create farmland along the river valleys.
Wet woodlands are important to a number of species as both animals and plants of woodlands and wetlands can be found here. Wet woodlands often developed when tree seedlings took root in other habitats such as fens and reedbeds. Over time the trees matured and shaded out other plants providing more shelter and cover than open habitats.
Wetlands are most valuable to wildlife when several types of habitat occur together and small patches of wet woodland and scrub are a vital addition to any wetland. As these open habitats like fens and reedbed are valuable in their own right, if it often necessary to control the spread of wet woodland by selective removal of some trees but retaining enough to provide for some species.
Explore more woodland habitats by using the navigation bar on the left or go back to Biodiversity in the National Park.
Thursdy 27 March 2008
News updatefind out what's new in the Park
Popular waterfall reopensThe path behind Sgywd yr Eira has re-opened