DBPapers
DOI:10.5593/SGEM2013/BC3/S14.002

COMPARATIVE ASSESSMENT OF THE CROWN STATUS OF FAGUS ORIENTALIS L. IN FOREST ECOSYSTEMS OF STRANDZHA MOUNTAIN, SOUTHEAST BULGARIA

G. Georgieva, S. B. Doncheva, N. Chipev
Monday 5 August 2013 by Libadmin2013

References: 13th SGEM GeoConference on Water Resources. Forest, Marine And Ocean Ecosystems, www.sgem.org, SGEM2013 Conference Proceedings, ISBN 978-619-7105-02-5 / ISSN 1314-2704, June 16-22, 2013, 771 - 778 pp

ABSTRACT

Strandzha Mountain is situated in the southeastern part of Bulgaria. It is distinguished by the specific deciduous forests having floral elements and characteristics of euxeinos and sub-euxeinos flora. In the present study a comparative assessment of the changes in the crown status of forest stands of Fagus orientalis L. in Strandzha Mt. was carried out from the viewpoint of indication of ecosystem “health”. The assessment of crown status was based on the analysis of two indicators “defoliation” and “discoloration”. The assessment was carried out on permanent research plots, which were selected based on a set of characteristics - altitude, exposure, soil type, etc. The obtained data were compared to historic data covering a 19 year period. The results suggested that percentage of defoliation and discoloration of the typical broadleaf forest stands in Strandzha Mt. varied, showing periods of low percentage and periods of high percentage. The results obtained were related to possible climate change.
Similar studies of forest ecosystems, typical for Strandzha Mt., and the possible impact of environmental factors on them, had not been the subject of extensive research so far. More studies are needed to understand the factors and mechanisms responsible for changes in the state and performance forest ecosystems in Strandzha Mt. under possible global changes.

Keywords: defoliation, discoloration, forest ecosystems, Strandzha Mountain, oriental beach

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