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Change detection and assesment using multi temporal satellite image for North-East Mediterranean Coast


4. Results
In this study, the images belonging 1992 and 2000 was evaluated. From the Figure 2. it was clearly seen that much of the sand dune of 1992 was changed into agricultural areas in 2000.


Figure 2. The classified image shows land use and land cover of the area in 1992 and 2000



The numerical and proportional values concerning landuse/land cover change were given in Table 2.

Table 2. The results of analysis based on the comparison of classified images of the dates 1992 and 2000
Year / km2 Year / km2 Difference / km2 Change Land use
1992 2000 1992-2000 %  
1.35 1.00 0.35 25.87 Decrease Deep Water
0.31 0.66 -0.35 53.27 Increase Shallow Water
0.30 0.71 -0.42 58.58 Increase Swamp
0.31 0.63 -0.33 51.52 Increase Pasture
2.15 3.79 -1.63 43.10 Increase Agriculture
4.84 2.47 2.38 49.05 Decrease Sand Dune
9.26 9.26 0.00    



According to the obtained data, it was determined that there was a decrease of 25.87% from 1991 to 2000 in the wetland surface. Similarly, a increase of 53.27% and decrease 49.05% was determined in the shallow of wetland and sand dune respectively. On the other hand, swamp area, pasture area created by human and agricultural area are seemed to have experienced some dramatic increases of 58.58%, 51.52% and 43.10% respectively.

In the light of these data, it is understood that the increase of 43.10% in agricultural area was mostly obtained from sand dune and, on a smaller scale, from shallow water.

That there occurs a decrease of 25.87% in deep water against an increase in shallow water and swamp shows that the extent of the lagoon is liable to get shallow quickly. agriculture, wetland, sand dune, vegetation, shallow water, deep water.

5. Conclusion
The transformation of the sand dune and wetland into agriculture in a short term like eight years poses a serious threat to the wetland. It cannot be possible to talk about the wetland of Yumurtalik provided this change lasts without curtailing its speed. In order to prevent this rapid change, sustainable agricultural policies and eco-system restorations are indispensable for the region.

6. References
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