The United Nations General Assembly declared 2011 as the International Year of Forests to raise awareness on sustainable management, conservation and sustainable development of all types of forests. vifabio collects the most important internet sources together for you.
You will find more biological web resources in our Internet Guide - a catalogue of annotated and evaluated internet sites.
This web site provides information about the silvicultural problem of the Black Cherry tree in the Berlin forests and its control, especially biological control with the endemic Silverleaf fungus (Chondrostereum purpureum). Since its introduction in the first half of the last century, the Black Cherry quickly became a problem species. Since the 1980s the Berliner Forsten has been making great efforts to reduce its numbers. Although there are a number of success stories in individual districts, the overall situation is still problematic. Drastic reductions in machinery and manpower have limited the opportunities for work in this area. Standing on approximately one third of the total Berlin forest area of 29,000 ha, this neophyte is, next to damage by game, the biggest problem for the structure of the forest. The aim of changing the mono-culture pine forest is difficult in these particular affected areas. ... [Information of the supplier, modified]