Uploaded on 2019-08-20 by Stefan

a. Provisioning services The lake of Biel is the main source of fresh water in the region. The water is taken from the lake, treated and distributed to consumers. b. Regulating services The forest in the vicinity of Biel protects the city from avalanches in winter and from landslides in summer. The forest also enhances air quality and removes pollutants. c. Habitat or Supporting services The river Zihl offers a special habitat for various kinds of animals, like fish, ducks, geese, beavers, insects, etc. d. Cultural services The Lake of Biel plays an important factor in tourism. It attracts water sport lovers of all kind, hobby fishermen, families, etc. It is therefore a considerable source of income for the city and the region. The lake is also an aesthetic factor and a place of recreation an relaxation for the inhabitants.