Das schweizerische Mittelland und seine Biodiversität (Essay) | The Swiss plateau and its biodiversity
When it comes to preserving biodiversity, agriculture and forestry play a key role. The National Science Foundation study published in 1989 on «Minimum requirements of semi-natural areas within the cultural landscape»identified considerable deficiencies for species diversity in the Swiss plateau. The agricultural policy reform introduced in the 1990’s should have met those concerns more directly. Despite new measures such as direct payments and despite high financial investments, during the last several years species diversity within the favored agricultural areas has hardly increased and the Swiss plateau has stayed a species-poor region. However, regarding the forest, conditions within the Swiss plateau are considered to be more favorable. The forest owners and forest enterprises are operating in public areas which, to a certain degree,put constraints on the intensity of management. For the forest, the deficits of highest concern are the insufficient establishment of forest reserves, the lack of diverse structures and the deficiencies of old growth and deadwood. Recently, the request for timber has increased rapidly. In order that the biodiversity does not lose its qualities, ecological standards for forest management are to be defined. The author recommends the development and implementation of an action plan for a national biodiversity strategy which covers the entire living space.