Seggenried
A sedge is a wet area (reed; from Middle High German advised "reeds, reeds") overgrown with sedges ( sour grasses ).
A distinction is made in terms of vegetation:
- Großseggenriede . Reeds- like vegetationcomposed of tall sedgespecies, mostly in mesotrophic to eutrophic site conditions on water-saturated soils (often shallowly flooded in winter). Großseggenriede can be found as a stage in silting rows of lakes, they connect to real reed beds on the land side. Often they develop as fallow stages on abandoned wet meadows or with very extensive grassland use. Large sedge beds often form dominant stands of one sedge species with only a few accompanying species. Constructive types are z. B. Marsh sedge ( Carex acutiformis ), slender sedge ( Carex acuta , syn Carex gracilis ), stiff sedge ( Carex elata ), panicle sedge ( Carex paniculata ). Großseggenriede form the association Magnocaricion in the plant sociological system.
- Kleinseggenriede . Meadow-like vegetation built up from low-growing sedge species on nutrient-poor, often seepage soils. Kleinseggenriede differ greatly in their species composition, depending on whether they occur on acidic or calcareous soils. Acid Kleinseggenriede grow in drainage basins in unfertilized grassland and in heaths and on the edge of moors. Typical species are gray sedge ( Carex canescens ) and millet sedge ( Carex panicea ). Kalk-Kleinseggenriede grow at springs and on steep slopes overflowing with calcareous water, mostly in the mountains, rarely also in the lowlands. In addition to the sedge types Davall sedge ( Carex davalliana ) or flea sedge ( Carex pulicaris ) there are species such as calyx lily ( Tofieldia calyculata ) and flour primrose ( Primula farinosa ). Typical companions in Kleinsseggenrieden are cotton grass species ( Eriophorum spp. ).
Sedge beds are among the endangered biotope types in the Federal Republic of Germany.
Occurrence
In Central Europe, sedges used to be used to extract litter or they were used extensively as grassland. Today they occur almost exclusively in protected areas. Sedge beds are mostly rare in Germany and tend to be small, but widespread in all landscapes. Larger stocks grow mainly in the lowlands. Only the types of stands of nutrient-rich, fertilized locations are more common today.
A (non-representative) selection of some protected areas, which u. a. Sedges contain:
- Bog areas of Australia and Tasmania ( button grass )
- Nuthe-Nieplitz Nature Park
- Auebachtal
- Grimkesee
- Gewinghauser Bachtal
- Borstenbach
- Stepenitz nature reserve
- Perlenbach-Fuhrtsbachtal nature reserve
- Untere Seeverniederung nature reserve