Revue internationale d'écologie méditerranéenne International ...

ÖmEr FArUK KAyA, OSmAn KETEnOğlU
Figure 1 –
Geographical map
of the study area.
46
3% is Eurosiberian and the rest of it is covered
by the elements of which the origin is
unknown (Saya & Ertekin 1998).
Karacadağ is one of the important plant and
nature areas on which wild relatives of many
Poaceae and Fabaceae plants grow (Özhatay
et al. 2003; Anonymous 2004; Biricik et al.
2006). Findings of many researches published
in recent years highlight that wheat farming
in the world has first time started in Karacadağ
and its district included in “fertile crescent”
(Nevo et al. 1986; Nevo 1992; Diamond
1997; Heun et al. 1997; Jones et al. 1998; Nesbit
& Samuel 1998; Lev-Yadun et al. 2000).
Unfortunately, the activities which increase
day by day by depending on population
growth lead to unbearable pressure on the
plant diversity. Forest vegetations have been
destroyed because the trees (especially oaks)
have been cut for making them fuel and thus
replaced by steppe vegetations in which Astragalus
L. is a dominant especially.
Material and Methods
Flora of Turkey (Davis 1965-1985; Davis et al.
1988; Güner et al. 2000) has been used in
identifying taxa as a basic resource. Other
basic floras (Rechinger 1965-1977; Bor 1968)
and the studies of Malyer (1983), Kaynak &
Ketenoğlu (1986), Kaynak (1989), Ertekin
(1994; 2002) and Kaya et al. (2009) were used.
Braun-Blanquet (1965) approach was used in
order to analyze the vegetation. e size of the
relevés was estimated by means of minimal
area and was determined 50 m 2 for steppe
vegetation. Evaluations of the syntaxa were
made by the study of Quézel (1973). Sørensen
(1948) similarity index was used to compare
defined syntaxa with the similar syntaxa identified
in different regions in terms of their
floristic compositions. International Code of
Phytosociological Nomenclature principles
were followed for denomination of the new
syntaxa (Weber et al. 2000). Soil samples from
the study area were analyzed according to
Tüzüner (1990).
ecologia mediterranea – Vol. 36 (1) – 2010