0170710 - UEK-B 20033015 RIV GB eng J - Journal Article
Zemek, František - Cudlín, Pavel - Boháč, Jaroslav - Moravec, Ivo - Heřman, Michal
Semi-natural Forested Landscape under a Bark Beetle Outbreak: a case study of the Bohemian Forest.
Landscape research. Roč. 28, č. 3 (2003), s. 279-292. ISSN 0142-6397. E-ISSN 1469-9710
Institutional research plan: CEZ:AV0Z6087904
Keywords : Norway spruce * remote sensing * stress history
Subject RIV: EH - Ecology, Behaviour

Long-term and lasting human interference in forest ecosystems in the Bohemian Forest has resulted in the loss of some equilibrium mechanisms and hence increased susceptibility to ecological disurbances. Two methods for estimating bark beetle outbreaks in spruce forests are reported: an assessment of the susceptibility of individual trees to attack according to crown structure characteristics; and the use of remotely sensed data and image processing techniques to quantify changes in forest cover. The results document a significant increase in the area of highly damaged and dead forest classes, from 1% in 1987 to 16% in 1998, and a decrease in the area of healthy and moderately damaged spruce classes from 71% in 1987 to 52% in 1998. A possible approach to managing mountain Norway spruce ecosystems invaded by bark beetle in the Bohemian Forest is proposed.
Permanent Link: http://hdl.handle.net/11104/0067792