@misc{Knoche_Dirk_Infection, author={Knoche, Dirk and Ertle, Christoph}, howpublished={online}, publisher={Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego}, language={eng}, abstract={During the last years an alarming dieback has occurred in 20 to 40 years old first-rotation pine stands (Pinus sylvestris L.) on mine sites, caused by the white rot fungus Heterobasidion annosum (Fr.) Bref. First thinning opens the infection path so that up to now 30 to 89 % of afforestations in different mining areas are affected.}, abstract={Infestation risk increases with rising pH of the top soil (0-30 cm). The mean pH(H2O) of the infestation foci is 6.2, whereas it is below 5.0 in uninfected stands. Common practise of lime amelioration speeds up the infection. Furthermore, soil water availability (PAWC) has a significant impact on the course of disease.}, abstract={The plant available water (0-100 cm soil depth) of dieback gaps is about 80 mm. In contrast, the water storage capacity of unin-fected reference plots falls below 50 mm.}, type={artykuł}, title={Infection of scots pine afforestations (Pinus sylvestris L.) by annosum root rot (Heterobasidion annosum (fr.) Bref.) in the eastern german lignite district = Infekcja zadrzewień sosny zwyczajnej (Pinus sylvestris L.) wywołane przez korzeniowca wieloletniego (Heterobasidion annosum (Fr.) Bref.) w okręgu wydobywczym węgla brunatnego we wschodnich Niemczech}, keywords={zadrzewienia, sosna zwyczajna, korzeniowiec wieloletni (Heterobasidion annosun), Pine afforestation, Annosum root rot, forest dieback, mine soil, water storage capacity, soil pH}, }