| Popis: |
The class Littorelletea includes amphiphyte communities on sites with alternating water level in meso- to oligotrophic, stagnant or slowly running, not or hardly polluted, mostly weakly buffered water. The communities are bound to a mineral soil which is not or hardly covered by organic material. They show a simple structure, in which the isoetid growth form predominates; their species number is rather low. The area of the class includes the humid temperate zone of the northern hemisphere; in Europe the communities concentrate in the atlantic, boreo-atlantic and subatlantic regions (...) |
