The history of Scots pine encroachment and retreat in ombrotrophic bog recorded in woody debris

摘要: Using the characteristic of accumulated woody debris, data on vegetation, and previous climate fluctuations, we reconstructed history Scots pine (Pinus sylvestris L.) encroachment retreat in a raised bog. The available patchy information plant cover allowed us to pinpoint events development seedlings first cases trees dying off time scale. results obtained show that process natural bog afforestation deforestation was very dynamic lasted only 22 years. These short-term changes tree populations were clearly linked fluctuations. annual precipitation mean temperature winter months most important variables main factors directly influencing young woodland. We assumed remnants represent last stage contemporary phase high germination dying-off (GDO) trees. spatial distribution debris its characteristics indicate naturalness vegetation during this temporary ‘woodland phase’. study investigation can be used further improve our understanding dynamics, especially with regard influence periodical fluctuations transitions between open forested peatland.