آشکارسازی تغییرات کاربری اراضی با استفاده از داده‌های سنجش‌ازدور (مطالعه موردی: شهر تهران)

نوع مقاله : مقاله های برگرفته از رساله و پایان نامه

نویسندگان

1 دانشجوی دکترای منابع طبیعی- جنگلداری دانشکده کشاورزی و منابع طبیعی ساری

2 دانشیار دانشکده کشاورزی و‌ منابع طبیعی ساری

3 دکتر حمید جلیلوند دانشیار دانشکده کشاورزی و ‌‌منابع طبیعی ساری

4 دکتر حسن اکبری دانشیار دانشکده کشاورزی و منابع طبیعی ساری

چکیده

به دلیل روند افزایشی اثرات مخرب تغییر کاربری اراضی ناشی از فعالیت‌های انسانی، کشف و بارزسازی این تغییرات به‌منظور برنامه‌ریزی و تصمیم‌گیری مدیریتی ضروری است. در این تحقیق، تغییرات کاربری اراضی کلان‌شهر تهران در طی سال‌های 2000 تا 2015 موردبررسی قرار گرفت. بدین منظور، از داده‌های تصاویر ماهواره‌ای ETM، OLI چهار دوره زمانی 2000، 2005، 2010 و 2015 استفاده شد. همچنین نقشه‌های رقومی 1:25000 منطقه موردمطالعه و اطلاعات حاصل از بازدید میدانی نیز به‌منظور تکمیل داده‌های گردآوری‌شده مورداستفاده قرار گرفت. پس از پیش‌پردازش تصاویر و اصلاح آن‌ها، بارزسازی و استخراج اطلاعات انجام و نقشه‌های کاربری اراضی برای سال‌های موردمطالعه استخراج شد. دقت کلی و شاخص کاپا نشان از قابلیت اعتماد نقشه‌های خروجی از تصاویر مورداستفاده داشت. نتایج نشان داد که در تمامی دوره‌ها بیشترین سطح مربوط به کاربری انسان‌ساخت بوده است که روند تغییرات این کاربری از سال 2000 (8/61 درصد) تا سال 2015 (7/78 درصد) افزایشی بوده و بر مساحت این کاربری افزوده شده است. طبق نتایج در طی سه دوره موردمطالعه، کاربری‌های فضای سبز، بایر و سایر کاربری‌ها کاهش مساحت داشته‌اند و میزان این روند کاهشی در دوره زمانی 2000-2005 شدت بیشتری داشته است. اما در مقابل نیز کاربری انسان‌ساخت در طی سه دوره روند افزایشی نشان داده است این افزایش به دلیل رشد جمعیت بوده و بیشترین افزایش این کاربری در بخش‌های شمال شرق مشاهده شده است.

کلیدواژه‌ها


عنوان مقاله [English]

Detection of land use changes using remote sensing data (Case study: Tehran)

نویسندگان [English]

  • elham pakkhesal 1
  • jafar oladi ghadikolaei 2
  • hamid jalilvand 3
  • Hassan Akbari 4
1 PhD student in Natural Resources - Forestry, Faculty of Agriculture and Natural Resources sari University
2 Associate Professor, Faculty of Agriculture and Natural Resources, Sari University
3 Dr. Hamid Jalilvand, Associate Professor, Faculty of Agriculture, and Naturals Resources of sari University
4 Dr .Hassan Akbari Associate Professor Faculty Of Agriculture and Natural Resources sari University
چکیده [English]

Due to the increasing trend of destructive effects of land use change due to human activities, it is necessary to discover and highlight these changes in order to plan and make managerial decisions. In this study, land use changes in the metropolitan area of ​​Tehran during the years 2000 to 2015 were studied. For this purpose, ETM, OLI satellite image data of four periods of 2000, 2005, 2010 and 2015 were used. Also, 1: 25000 digital maps of the study area and information obtained from the field visit were used to supplement the collected data. After pre-processing the images and correcting them, information was extracted and extracted, and land use maps were extracted for the studied years. The overall accuracy and kappa index indicated the reliability of the output maps used. The results showed that in all periods, the highest level was related to man-made use, the trend of changes in this use from 2000 (61.8%) to 2015 (78.7%) has increased and the area of ​​this use has increased. According to the results, during the three periods under study, land use, barren and other land uses have decreased in area and the rate of this decreasing trend has been more intense in the period of 2000-2005. On the other hand, man-made land use has shown an increasing trend during three periods. This increase is due to population growth and the highest increase in this land use has been observed in the northeastern parts.

کلیدواژه‌ها [English]

  • land use
  • Remote Sensing
  • Tehran
  • satellite images
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