It is already extinct in the Sudeten Mountains, the western part of the Carpathian Mountains and in Silesia. Fir trees are dying in Swietokrzyskie Mountains in Puszcza Jodlowa and in Bieszczady Mountains. All indications are that the fate of fir trees will be the same as the stone pine and yew. They will become a relict in the forests. Pine trees and spruce are also tHReatened.
Mountainous terrain is where destructive processes are most prevalent.
The dieback of spruce tree stands in the Sudeten Mountains, Beskid Slaski and Beskid Zywiecki is becoming an ecological disaster. In the upper subalpine forest trees of all ages are dying. Up till now about 13,500 ha of forests withered away. The dieback process in mountain forests is moving east and into the valleys, affecting areas such as Gory Kamienne and Gory Walbrzyskie as well as Gory Bystrzyckie and Gory Stolowe. Deforestation of watersheds and mountain catchments may cause very painful and wide ranging natural, societal and ecological consequences.