International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004
Therefore, 1994 Landsat TM images were chosen as reference
and other images (1974, 1984, and 2001) as predicted and
linear regression models were set up for each band in multi-
temporal images. Consequently, the disparities in images
caused by environmental differences were normalized.
For the purpose of the classification of the images obtained in
the years of 1974, 1984, 1994, 2001 and change detection, 4
different land use classes were determined, namely deciduous
forest, coniferous forest, settlement areas and other non-forest
usage. These main classes include many sub-classes.
Representing these classes, 42 training areas were selected for
ages and the same training areas were used in all
images. Fore§t Management Plans and charts were referred to
for the determination of the training areas and the terrestrial
data .was chedked. )
The training alleas were first subjected to signature analysis and
the investigation of the brightness (reflection) values and
relevant curves of these classes were conducted. Decisions were
made on the most appropriate band combinations after the
investigation of the tables and graphics showing the reflectance
values of the training areas belonging to these classes with
respect to bands. The appropriate band combinations were
NDVI, VI (MSS4 - MSS3), Tasselled Cap (Greenness) for the
year 1974 and 3-4-5" band of TM and ETM', NDVI, VI (TM4-
TM3) and Tasselled Cap (Greenness) for the years 1984, 1994,
and 2001. Afterwards, the classification of the sub-classes and
the band combinations were made. The classification was done
using the “Maximum Likelihood” method.
4. RESULT AND DISCUSSION
To determine land use changes, classificated images belonging
to the 4 main land use classes were recoded and converted into
vector layers with ArcInfo software and geographic information
covers for the years 1974, 1984, 1994 and 2001 were used.
After the query of the overlay process, the land use changes
between the years of 1974 and 2001 were examined.
[] Nonforest
LE ] Decidious
Ed Settlement
Figure 2. Land use map of 1974
Class Area (ha) Area (96)
Settlement 3.04 0.13
Non-forest 142.36 6.23
Deciduous 2141 93.64
Coniferous 0.00 0.00
Table 1. Area distributions of land use class for 1974
|o ; e E
MIT T An»
: t T e E
A o7 PNE SD
B Coniferous
Figure 3. Land use map of 1984
Class Area (ha) Area (96)
Settlement 166.81 7.30
Non-forest 96.66 4.23
Deciduous 1337.33 59.39
Coniferous 665.10 29.09
Table 2. Area distributions of land use class for 1984
a] Settlement
Fo Nonforest
M [|] Decidious
à M] Coniferous
xn T ene,
Figure 4. Land use map of 1994
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