Important places of the botanical garden
Natural grounds trail
This trail leads through the natural parts of the Botanical Garden. Its length is 3 km with 9 stops, related to geological, botanical and historical conditions of the area. Start of the Trail is at the sunken road, which is one of the last roads of this type of Prague. The more than one million years old river gravel and sand sediments of the Vltava terrace are forming the sides of this road. Traces of Vltava´s activity as deposits of gravel sand are visible even at higher elevations, near the former sand quarry, originating in the Pleistocene era, exploited by Troja inhabitants in the near past. From the geological point of view, the Giant Rock is of significant importance. This area if formed by distinctive rocky ridge composed of touchstone and its rubble. Formed 600 million years ago in Archeozoic era, this ridge has been completely inundated by the sea several times since then. Geological base is directly influencing the vegetative cover. This is remarkable at Salabka and Pustá vinice heaths, where this base is made of touchstone and crystalline basement slate. There are no quaternary deposits over the parent rock, only thin layers of weathered rock and ranker soils form the cover. These acidic touchstone outcrops are suitable for growth of heaths and Hairgrass. Outrops of slates are suitable for growth of Tor grass, Yellow scabiosa and other associate species. Bog vegetation, which is spread near the spring area of the Haltýř stream, is dominated by Hard rush (or Blue rush) and Great willowherb. This trail ends at the Pod Havránkou Street where the remnants of ancient settlement of Fishermen may be traced.
Contact
Botanická zahrada hl.m. Prahy
Eva Vítová
Tel.:+420 234 148 134
e-mail:eva.vitova@botanicka.cz
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