Supervisors info:
Παπαδοπούλου Κυριακή .Καθηγήτρια (Επιβλέπουσα), Γκουρνέλος Θ. Καθηγητής, Βασιλάκης Ε. Επίκ. Καθηγητής
Summary:
The aim of the present master thesis is the geomorphological and environmental
study of the western part of Northern Evia and its impact on the land use of
the study area.
For this study were used digital geological and hydrographical data derived
from the geological and topographical maps with a scale 1: 50.000, of IGME and
the Military Geographical Service respectively. In addition, digital elevation
data were used for the terrain analysis of the morphology of the study area.
The results of the geomorphological analysis were combined with field
observations and the updated data (2000) for the land cover and the land use,
derived from the CORINE land cover project, of the E.U., for Greece. GIS
software was used for data processing.
The area consists mainly of limestone and dolomites Mesozoic age and is
characterized by the existence of large fault zones with general direction E-W.
In particular, the central part of the region composed of dolomitic limestone,
appears largely karstified.
The area under study is characterized by the development of karst and coastal
landforms. The karstic morphology observed in the area is mainly associated
with the lithology and tectonic structure of the region, as large karst
landforms follow the direction of the main faults.
Regarding the coastal morphology of the peninsula it is observed that the
shores are presented in their majority as cobble-to-sandy, while at certain
positions are exclusively sandy. The presence of beach rocks, asymmetrical sand
ripples and berms are also observed.
The study of morphological relief was based on the processing of digital data
of altitudes and gradients. Noteworthy is the proximity that exists between
regions with small (0ο2ο, 2ο5ο) and large gradient values (15ο–35ο, 35ο–55ο),
coinciding with the major fault zones of the region of an E-W direction. In
conclusion, the combined effect of the relief distribution, the morphological
gradients, the orientation of the slopes and the rock formation, has developed
land use.
The susceptibility maps constructed to identify possible high risk areas (eg
landslides phenomena), led to the creation of three classes of susceptibility
(Low, Medium and High). Combined susceptibility maps, correlating the rock
formations to the orientation of the slopes resulted that low susceptibility
exists in the eastern and western part of the peninsula, moderate in the north
and high in the south. High susceptibility areas identified in resistant to
erosion formations.
Finally, regarding the environmental observations made in the area, it was
found that the most likely sources of pollution are waste dumps, floating fish
farming installations in the northern part of the peninsula and the Club
Mediterrane, where there is accumulation of large waste volumes, especially
during the summer.
Keywords:
Geomorphological and Environmental research, Land uses, G.I.S., Northern Evia
