Plants in peatlands survive low nutrients and low light thanks to their perennial life cycle, which ensures a large biomass above and below ground.


"Virtually all true mire vascular plants are perennial. This is a most effective way to ensure a large biomass, both below and above ground. In a nutrient-poor environment, a relatively large root biomass is required to obtain enough resources, and this cannot easily be built up within one season. Also, the large above-ground biomass which may be necessary for light capture in wooded mires can be built only by perennials." (Rydin and Jeglum 2006:50)

The Biology of Peatlands, 2e (Biology of Habitats)Oxford University PressOctober 20, 2016
Hakan Rydin