International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B-YF. Istanbul 2004
2. THE AREA OF STUDY
In the area, that is 4.079 hectare and is located in the boundaries
of the of the Gallipoli Peninsula Historical — National Park in
Ecebat in Canakkale, a fire broke out and was extinguished in
about three days . The area of study is located between the
following coordinates: 40° 41° 32°" - 40° 22’ 45” northern
parallels, and 26° 12° 57°°-26° 25° 23” eastern meridians as
they are shown in figure 1. 674 hectare of the burned area was
the destroyed area, and 3.375 hectare of it was the productive
forest.
A y u +, $
Y & & & &
4480001 -
447000
|
4460«cN
4450 -
4440 |
443000 + ae +
10 0 10 20
Kilometers
Figure 1. Location of the area of study.
2.1 Vegetation Type
The Gallipoli Peninsula is located over an area of 1684.02 km2
and is rich in forest resources. 23% of the total area in the forest
is consisted mostly of pine trees together with other species
with leaves and groups of bushes. This kind of vegetation is
especially susceptible to fire.
2.2 Climate
The climatic regime determines the vegetation in a particular
region, and hence plays a dominant role in creating areas prone
to fire. The study area has the Region of Marmara’s climate that
has the peculiarity of transition from the Region of Black Sea’s
climate to that of the Region of Mediterranean. In this climate
type, it is cold in winter, hot in summer and rainy in spring and
autumn.
Annual Low Rain 475.8 mm
Annual Low Temperature 14.4 C
Annual Relative Humidity 80 %
Annual Wind Speed 4.5 m/sec
The Faster Wind Direction South-South/East 30 m/sec
Even though the annual wind speed is about 4.5 m/ sec, it was
about 75 km/ sec. on the day the fire broke out.
34
2.3 Topography
Topography is an important physiographic factor, which is
related to wind behaviour, and hence affects the fire proneness
of the area. Fire travels most rapidly up slopes and the least
rapidly down slopes. The historical peninsula has an uneven
land structure. Its structure is mountainous faulted and is
consisted of slopes.
2.4 Distance from roads
Forests that are accidental / man-made can be resulted by the
movements of humans, animals and vehicles. Thus, forests that
are near roads are fire prone. Many roads traverse the study
area. This makes people and animals grazing there the cause of
fire in the forest.
2.5 Distance from settlements
Forests located near settlements can be said to be more fire
prone since the people living there can cause an accidental fire.
Crowded settlements are located within the forest in the study
area, so they can cause forest fires.
3. MATERIALS AND METHODS
3.1 Data
The images of Landsat TM in 1992 before the fire and the
images of that in 1998 after the fire were used for defining and
identifying the burned area and for estimating the vegetation
loss. Besides the satellite data, the topographic maps were used
in this project. The data collected for this study area were the
following: forest type map, vegetation map, elevation, slope,
aspect, standard topographic map and climate data (average
wind, rainfall data, and temperature).
3.2 Methods
Standard topographic maps at a scale of 1:25 000 were digitized
and DEM were produced for the study area (figure 2).
Figure 2. DEM