Balik Sanli Fusun, Kurucu Yusuf, Esetlili Mustafa Tolga
Department of Geodesy and Photogrammetry Engineering, Civil Engineering Faculty, Yildiz Technical University, 34349, Besiktas, Istanbul, Turkey.
Environ Monit Assess. 2009 Apr;151(1-4):45-58. doi: 10.1007/s10661-008-0248-z. Epub 2008 Apr 24.
Rapid and unplanned urbanization and industrialization are the main reasons of environmental problems. If urban growth is not based on resource sustainability criteria and urban plans are not applied, natural and human resources are damaged dramatically. In this study, land use change and urban expansion in Edremit region of Turkey is determined by means of remote sensing techniques between 1971 and 2002. To improve the accuracy of land use/cover maps, the contribution of SAR images to optic images in defining land cover types was investigated. To determine the situation of land use/cover types in 2002 accurately, Landsat-5 images and Radarsat-1 images were fused, and the land use/cover types were defined from the fused images. Comparisons with the ground truth reveal that land use maps generated using the fuse technique are improved about 6% with an accuracy of 81.20%. To define land use types and urban expansion, screen digitizing and classification methods were used. The results of the study indicate that the urban areas have been increased 1,826 ha across the agricultural fields which are in land use capability classes of I and II, and significant environmental changes such as land degradation and degeneration of ground water quality occurred.
快速且无规划的城市化和工业化是环境问题的主要原因。如果城市增长不以资源可持续性标准为基础且城市规划未得到应用，自然和人力资源将受到极大破坏。在本研究中，利用遥感技术确定了1971年至2002年间土耳其埃迪尔内地区的土地利用变化和城市扩张情况。为提高土地利用/覆盖图的准确性，研究了合成孔径雷达（SAR）图像在定义土地覆盖类型方面对光学图像的贡献。为准确确定2002年土地利用/覆盖类型的情况，将陆地卫星5号图像和雷达卫星1号图像进行融合，并从融合图像中定义土地利用/覆盖类型。与地面实况的比较表明，使用融合技术生成的土地利用图精度提高了约6%，达到81.20%。为定义土地利用类型和城市扩张，采用了屏幕数字化和分类方法。研究结果表明，城市区域在土地利用能力等级为I和II的农田上增加了1826公顷，并且发生了诸如土地退化和地下水水质恶化等重大环境变化。
