'Urbanization of Aksaray
between 1987-2001: Aksaray'ın 1987-2001 arasında şehirleşmesi'
This paper presents an integrated
study of urbanization trends in Aksaray City of Turkey based on
Geographical Information Systems (GIS) and remote sensing tools. The
study explores the temporal and spatial characteristics of urban
expansion and land use/cover change (LCLU) between 1987 and 2001.
The administrative status of Aksaray was changed from district to
province in 1989. Therefore, the study of urban expansion for
Aksaray covers two different period of time during which the status
of the city was different. The changes of land use/land cover in the
city are spatially analyzed for these time periods. As the result of
analyses, it has been determined that after the status of the city
was changed to province, there has been 410 % of increase in the
number of buildings especially in the urbanized regions, in 16 years
between 1984-2000, as a result of the parceling. During this time
period, the maximum increase in neighbor provinces of Aksaray is 120
%. This indicates that Aksaray gained a great development potential
after its status was changed to province. This study also projected
LCLU change using supervised classification for the next 14 years.
The relationships of urbanization-landscape change and
urbanization-population growth are also observed. For Aksaray,
substantial LCLU changes were detected for the time period of 1987 -
2001. The LCLU conversion relationship implies that these changes
are caused and leaded by urban expansion that produces a driving
force for land use changes resulting in a higher return. The major
factors influencing urban expansion and LCLU change are also
discussed. Overall major factors influencing the urban expansion are
detected to be the population, traffic conditions,
industrialization, and politics.
Aksaray is one of the major cultural centers and the fastest growing
cities in Turkey (DPT, 1999). In the last 25 years, comparing to the
other middle size cities in the region, there has been a rapid
growth in the city of Aksaray in terms of urbanization and special
expansion. Despite the lack of infrastructures, there is still an
ongoing urbanization trend in Aksaray. After Aksaray became a
province, it was declared as a privileged region in development, and
this resulted in increase in the amount of state, KOBİ and KOSGEB
supports to the investors in the region. The number of the
industrial facilities in the city was 20 in 2003 while it was 7 in
1989. The economic activities in the region also have been moving
from agriculture and stock breeding to the other industrial sectors.
While the proportion of the agricultural sector in the economy of
the region was 57,7 % in 1995, it was 31.3 in 2001, which is a
significant decrease proving the move to the other sectors (Aksaray
Valiliği, 2005).
The aim of
this study is to analyze land use/cover changes and the dynamics
behind the urban expansion of Aksaray city. The specific objectives
are, using multi-temporal Landsat data to create time series for two
terms for urban growth between the years 19872001, detecting the
urban spreading directions of the city and land use conversions
occurred within Aksaray, examining the scope and rate of urban
expansion using classification method; and analyzing the driving
forces and factors influencing the urban expansion. To achieve these
objectives, Landsat Thematic Mapper (TM) and Enhanced Thematic
Mapper plus (ETM+) data acquired on June 1987 and May 2001, were
used.
H. Murat Yılmaz, Selçuk Reis and Mustafa Atasoy, Department
of Geodesy and Photogrammetry Engineering, Aksaray University,
Turkey.
'Detection of Spatial-Temporal Changes of Development Potential of
Aksaray City Using Remote Sensing and GIS'; presented at 'Shaping
the Change XXIII FIG Congress
Munich, Germany, October 8-13, 2006'
Urbanization of Aksaray: Aksaray'ın 1987-2001 arasında şehirleşmesi (pdf)
|
