SWITZERLAND · DESIGNATIONS · FEDERAL INVENTORIES
Trockenwiesen und -weiden von nationaler Bedeutung (TWW)
What this layer shows
The inventory of dry grasslands of national importance under the Dry Grasslands Ordinance (TwwV). The objects are to be preserved intact; the protection objectives include the specific plant and animal life, the typical character and structure of the sites and sustainable farming, which the cantons secure by agreement with the farmers wherever possible (Art. 18c NHG). Departures from the objectives are allowed only in the narrow cases the TwwV sets out, and require protection, restoration or replacement measures.
Publisher and licence
Bundesamt für Umwelt (BAFU), opendata.swiss: freie Nutzung, Quellenangabe Pflicht
Licence not stated by the publisher
Bundesamt für Umwelt (BAFU), opendata.swiss: freie Nutzung, Quellenangabe Pflicht
Where the data comes from
GEOADMIN
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Facts shown for each feature
Object number · Sub-object
In these presets
Federal inventories
The inventories of national importance a project is measured against: BLN, floodplains, raised bogs and fens, mire landscapes, dry grasslands and amphibian breeding sites, with the hunting-ban areas, bird reserves, forest reserves, wildlife rest zones, Emerald and Ramsar sites and Pro Natura's reserves. The basis of every environmental assessment under the NHG.
Environmental assessment
Where an environmental consultancy starts a site assessment: the federal biotope inventories, forest reserves and wildlife rest zones, the state of the rivers, wildlife corridors and amphibian crossing sites, the sites of threatened mosses, and the groundwater protection zones, hazard map and polluted-site registers of the cantons that publish them openly.
Farming and biodiversity
Biodiversity promotion areas at quality level II and in networking projects, crop rotation areas, and the dry and wet habitats that depend on farming to survive: dry grasslands and fens of national importance.