Bois Noir
The Bois Noir (German: Black Forest ) is a forest in the Lower Valais in Switzerland, near the village of St-Maurice .
The Bois Noir covers an area of about 80 hectares and is under protection. The height ranges from 450 to 520 meters above sea level. The annual precipitation is 1050 mm.
geology
The stock lies on an alluvial debris cone of the torrent de St.-Barthélemy , which drains the south side of the Dents du Midi (Cime de l'Est) and flows into the Rhone . The resulting soil is chalky, shallow and very permeable to water.
flora
The forest is very species-rich mixed pine forest. In 1987 it was estimated that 80% of the upper class consists of Scots pine , 10% spruce and fir and 10% of deciduous forest ( birch , maple , poplar , alder , whitebeam ).
The lower layer is rich in dogwood , rock pear , hazel , juniper , privet , cherry tree . Orchids can also be found in various locations .
fauna
The forest is a retreat for all animals of the lowlands, such as rabbits and deer .
history
The forest was repeatedly hit by debris flows . The autobahn , cantonal road and SBB line were buried in 1926 and 1931. From 1940 debris flow barriers were built on the upper reaches of the Torrent de St.-Barthélemy stream , so that there have been no major incidents since then.
function
The Bois Noir is primarily used as a nature reserve and recreation area.
Individual evidence
- ↑ Ernest Coutaz, 1987, Tables des Matieres
Coordinates: 46 ° 11 ′ 23 " N , 7 ° 0 ′ 59" E ; CH1903: 567,400 / 115450