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Petrské údolí

The rock base is made of chlorite-phyllites seritické that a steep slope act as margin cabins or small boulder, if there is a greater erosion of rocky outcrops. In these places created rankers. This is the kind of soil with few nutrients, formed between the stones, which forms the transition between classical Cambisol (brown soil) and underdeveloped soils only with parent rock.

Peter's Valley was declared a natural monument in 1972. On an area of 4.5 hectares is protected deep-sunken valley slope with native communities of thermophilous oak forests with colorful herbaceous understory species.

Occurrence flora is now bound to the amount of nutrients in the soil and temperature. At the bottom we find the valley floodplain forests that grow in waterlogged areas sanctioning floods. To follow the woods with herb layer. In places the rocks and cliffs rising mainly pines that have no such demands on the environment, so they are sometimes collectively referred to as the pioneer birch trees. The most interesting species of plants found in the undergrowth Anthericum liliago (Anthericum liliago), higher primrose (Primula elatior), zimostrázek low (Polygaloides chamaebuxus) or triangular Hepatica (Hepatica nobilis).

Among the mammals found here are typical inhabitants of deciduous forests. The birds can be seen a small woodpecker (Dendrocopos minor) or šoupálka krátkoprstého (Certhia brachydactyla). Steep rocky slopes prevented intensive farming and a semi-natural character. On the edges already occurring stands of spruce and pine, which is not original, but planted by man. It is now are managed only in the protection and development of the natural sights. Last hit man in the development in the 80 years, when made calamity mining. Since then planted oaks and young seedlings are protected by a fence before being bitten.

GPS position

N 49° 46.470', E 13° 0.722'