Existing vegetation is carefully removed with a backhoe and promptly reused, thereby preserving the species structure of the site. For large-scale interventions, seeds from site-appropriate, subalpine and alpine species can now also be used. Twenty different grasses , types of clover and herbs were collected from suitable donor areas across the Alpine region and are now being produced on a large scale by farmers.
Depending on the altitude, source rock and use, different greening mixtures are put together for alpine pastures, ski slopes or embankments. In combination with greening techniques that reliably protect against erosion, long-lasting, site-appropriate, extensive-care greening has been tested and proven in many national and international projects of the HBLFA This successful interaction of techniques, methods and materials has been conveyed to project operators, planning offices, authorities and executing companies in many specialist events in recent years. In collaboration between the HBLFA Raumberg-Gumpenstein, the state of Tyrol and various specialist experts, the modern state of knowledge was summarized in a guideline and an ÖNorm and is now already established practice, at least in Austria.
By the way : The free handout on the topic of "High altitude greening in Austria - state of the art and current challenges by Bernhard Krautzer, Christian Partl and Wilhelm Graiss is available to browse and download below.
If you are interested in these topics or would like to learn more about them, we invite you to listen to our podcast.
If you are interested in greening at high altitudes, on alpine pastures, after building paths or ski slopes, listen to this podcast with Priv. Doz. Dr. Andreas Steinwidder and Dr. Bernhard Krautzer in.
Links on the topic of high altitude greening:
- Austrian Working Group for Grassland and Livestock Farming - Guideline: Site-appropriate recultivation and greening in high altitudes
- Austrian-standards.at (ÖNORM) - Requirements for ecologically oriented revegetation after technical interventions in alpine high altitudes
