The Swiss National Park, Biosphere Reserve Entlebuch and Wetland Preserve Glaubenberg in the cantons Obwalden and Luzern are compared with regard to their administrative structure and their costs. It becomes clear that the National Park is administered with more staff than the other areas, as informational services are offered to a large extent. That implies that the National Park is more cost intensive than the other protected area types. In the biosphere reserve, however, ecological goods are delivered in addition to the existing degree of protection, as some already protected wetland preserves are part of the biosphere reserve. The comparison poses the question, by which degree of protection nature conservation can be delivered efficiently.
Symbiotic nitrogen fixation by bacteria in the soil coexisting with legumes leads to reduced fertiliser requirement. It is not easy to measure this variable on farms, however. Now researchers from Agroscope have developed a method for estimating nitrogen input via symbiotic fixation at farm level.
With increasing global and regional temperatures, even in Switzerland the growing season has lengthened considerably. Using data from the Federal Office of Meteorology and Climatology, Agroscope has traced the development of the growing season since the start of the previous century.
The phosphate mineral reserves required for fertiliser production could be exhausted on a global scale in just a few decades. This study presents a method for recycling a Swiss industrial by-product into a phosphate fertiliser.