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This page contains information about most important on-going and finished projects

  • Subalpine forest development in Bulgarian Mountain Forests under climate change. Project funded by the Swiss National Science Foundation and the Bulgarian Ministry of Education, Youth and Science.

The aim of the project is to study unmanaged subalpine forests in Bulgaria and the possible effect of climate changes on them. We address topics like natural disturbance regimes of Picea abies, Pinus heldreichii and Pinus peuce forests, regeneration within them, possible effects of future warming and droughts, effects of mycorrhiza. To learn more about this project, please follow the link. Project leaders: Swiss Team - Dr. Peter Bebi, SLF; Bulgarian team: Dr. Stefan Yurukov, University of Forestry. Project period: 2013 - 2015

  • Natural disturbances and natural dynamics in Norway spruce forests (Picea abies Karst) - project funded by the National Science Fund of Bulgaria, DMU 02/22 2009)

The aim is to study the natural dynamics in Picea abies forests that have not been affected by human interventions. Special focus are natural disturbances (windthrows, insect outbreaks, fires), which are the main factor causing rapid changes within these forests. The study sites are several reserves in the Bulgarian Mountains - Parangalitsa, Bistrishko braniste and Beglika. Project leader is Dr. Momchil Panayotov; Project period: 2010 - 2013

  • “Dendrochronological, Climatic and Historical Reconstruction of the Bulgarian Past, ca. 1500-2000” - project funded by the National Science Fund of Bulgaria.

    The aim of this project is to study the variation of climate on the Balkan Peninsula during the last 500 yrs. and how it reflected in human lifes. The ambitions of the mixed tree-ring researchers and historians team is to use several ways of getting information for the past - climate recosntructions based on tree-ring chronologies and historical reconstructions based on a variaty of historical documents.

  • “Naturliche Dynamik von Lawinenschutzwaldern” – Project funded by the Velux Foundation; 2007-2011; Project leader: Dr. Peter Bebi (SLF); Bulgarian participation - Dr. M. Panayotov as investigator and responsible person for data collection and analysis from Bulgarian sites;You can learn more about this project by following the link


  • "Studying the variation of tree ring width and anatomy of Pinus heldreichii and the effects of climate factors on it

A group of several research projects aiming at better understanding the growth of the Balkan sub-endemic species Pinus heldreichii (P. leucodermis). Please, follow the link to learn more.

  • "Effects of avalanches on forest ecosystems"

A group of projects aiming at studying the reflection of avalanches on tree rings (mostly of Pinus peuce), dating past avalanches. The study site is the Northwest slope of Todoka Peak, Pirin Mts. Please, follow the link to learn more.