Spatial analysis for the assessment of the environmental changes in the landscapes of Izmir surroundings

Polina Lemenkova (1)

1 OUC - Ocean University of China

Presented research is focused on the spatial analysis aimed at the assessment of the environmental changes in the landscapes of Izmir surroundings, Turkey. Methods include Landsat TM images classification using Erdas Imagine, clustering segmentation and classification, verification via the Google Earth and GIS Mapping. Tme span is 13-years (1987-2000). Images were taken from the Global Land Cover Facility (GLCF) Earth Science Data Interface. The selected area of Izmir has the most diverse landscape structure and high heterogeneity of the land cover types. Accuracy results computed. Kappa statistics for the image 2000: 0.7843, for the image 1987: 0.7923. The classification of the image 1987: accuracy 81.25\%, 2000: 80,47\%. The results indicate changes in land cover types affected by human activities, i.e. increased agricultural areas. Results include following findings. 1987: croplands (wheat) covered 71\% of the today’s area (2000): 2382 vs. 3345 ha. Increase in barley cropland areas is noticeable as well: 1149 ha in 1987 vs. 4423 ha in 2000. Sparsely vegetated areas now also occupy more areas : 5914 ha in 2000 against 859 ha in 1987. Natural vegetation, decreased, which can be explained by the expansion of the agricultural lands. 1987: coppice areas covered 5500 ha while later on there are only 700 ha in this land type.

Mots clés: Image processing and analysis; Image processing methods; Image processing Digital image processing; Image processing Image recognition; Image processing Pattern recognition; Image processing -- Digital techniques; Image processing algorithm; Image processing application; Image processing Pattern recognition; Image processing and computer vision

Domaines: Informatique [cs]; Sciences de l'environnement; Algorithme et structure de données [cs.DS]; Synthèse d'image et réalité virtuelle [cs.GR]; Recherche d'information [cs.IR]; Apprentissage [cs.LG]; Modélisation et simulation; Traitement des images [eess.IV]; Ingénierie de l'environnement; Environnement et Société; Sciences de la Terre; Biodiversité et Ecologie; Bio-informatique [q-bio.QM]

Polina Lemenkova. Spatial analysis for the assessment of the environmental changes in the landscapes of Izmir surroundings. 10th International Conference on Environmental, Cultural, Economic and Social Sustainability, Jan 2014, Split, Croatia. ⟨10.13140/RG.2.2.22228.76160⟩. ⟨hal-02425753⟩