Bundesanstalt für Forst=und Holzwirtschaft

Nutrition of silver fir (Abies alba Mill) growing at the upper limit of its occurrence in the Šumava National Park and Protected Landscape Area

“…In the second half of the 20 th century, silver fir decline connected with air pollution was observed nearly throughout Europe resulting in a further reduction of silver fir in the tree species composition (Schütt et al 1984). After a decrease in air pollution in the 1990's, Silver fir regeneration was recorded in many regions including the Czech Republic (Herring, Eisenhauer 2001;Podlaski 2002;Schmidt, Mayer 2004). New studies have therefore focused on silver fir vitality and silvicultural measures aimed to increase its proportion in the forest regeneration were taken (Šrámek et al 2008).…”