بررسی و مقایسه روش‌های فازی آرتمپ و حداکثر احتمال در تهیه نقشه و پایش تغییرات کاربری اراضی (مطالعه موردی: امیدیه، استان خوزستان)

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری بیابان‌زدایی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

2 دانشجوی دکتری بیابان‌زدایی، دانشگاه سمنان، ایران

3 دانشجوی دکتری بیابان‌زدایی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان. گرگان، ایران

4 استادیار، دانشکده کویرشناسی، دانشگاه سمنان، ایران

چکیده

سنجش از دور فناوری کلیدی برای ارزیابی وسعت و میزان تغییرات پوشش اراضی است که اطلاع از این تغییرات در قسمت‌های مختلف، به عنوان اطلاعات پایه برای برنامه‌ریزی‌های مختلف، از اهمیت ویژه‌ای برخوردار است. در پژوهش حاضر، هدف مقایسه دو روش حداکثر احتمال و فازی آرت‌مپ، جهت تهیه نقشه کاربری اراضی با استفاده از تصاویر ماهواره‌ای لندست می‌باشد. در این مطالعه تغییرات پوشش اراضی طی 24 سال گذشته منطقه امیدیه مورد ارزیابی قرار گرفت. تصاویر سنجنده‌های TM لندست 4، ETM+ لندست 7 و OLI لندست 8 به ترتیب برای سال‌های 1990، 2000 و 2014 و همچنین نقشه‌های توپوگرافی و پوشش منطقه استفاده گردید. تصاویر هر سه مقطع زمانی به چهار کاربری مرتع، کشاورزی، اراضی شور و ماندابی و منطقه مسکونی طبقه‌بندی شدند. نتایج مربوط به صحت کلی طبقه‌بندی نشان می‌دهد که روش طبقه‌بندی فازی با ضریب کاپای 93 درصد، در مقایسه با روش الگوریتم حداکثر احتمال با ضریب کاپای 81 درصد، از دقت بالاتری برخوردار است. طبق نتایج بدست آمده کشاورزی پویاترین کاربری موجود در منطقه بوده که وسعت این اراضی طی 1990 تا 2014 روندی صعودی را در پی داشته است به‌طوریکه مقدار 32/32703 هکتار (2/23 درصد) به این اراضی افزوده شده است. روند تغییرات کاربری مسکونی نیز به صورت افزایشی بوده به طوری که مساحت 1/1325 هکتار (94/0%) را به خود اختصاص داده است. از طرف دیگر کاربری اراضی مرتعی با مقدار 4/13 درصد از منطقه دارای بیشترین کاهش مساحت بوده که وسعتی برابر با 63/18857 هکتار را شامل می‌شود.

کلیدواژه‌ها


عنوان مقاله [English]

Investigation and comparison of the maximum likelihood and fuzzy artmap methods in preparing and monitoring land use changes (Case study: Omidiyeh, Khuzestan province)

نویسندگان [English]

  • Maryam Mombani 1
  • Mohammad Nasrollahi 2
  • kamran karimi 3
  • Hayedeh Ara 4
1 Ph.D student in Combat to Desertification, Gorgan University of Agricultural sciences and Natural Resources, Gorgan, Iran
2 Ph.D student in Combat to Desertification, Semnan University, Semnan, Iran
3 Ph.D student in Combat to Desertification, Gorgan University of Agricultural sciences and Natural Resources. Iran
4 Assistance Professor, Faculty of Desert Studies, Semnan University, Iran
چکیده [English]

     Remote sensing is the main technology to assess the expansion and rate of land cover changes. Knowledge of these changes in different parts has particular importance as the base information for different planning. The aim of the present study was the comparison of the maximum likelihood and fuzzy Artmap methods to prepare land use map using Landsat satellite images. In this study, changes in land cover were evaluated over the past 24 years in Omidiyeh. Sensor images of TM Landsat 4, ETM+ Landsat 7 and OLI Landsat 8 for the years 1990, 2000 and 2014, respectively, and topographic and land cover maps of the area also were used. Images of all three periods were classified into four land uses including rangelands, agriculture, saline lands, and residential areas. The overall accuracy of the classification results showed that the fuzzy classification method with a kappa coefficient of 93% had more accuracy in comparison with the maximum likelihood algorithm with a kappa coefficient of 81%. According to the obtained results, the most dynamic land use in the region was the agricultural area, whose extent increased from 1990 to 2014, and 32703.32 hectares (32.2%) was added to this land use. An increasing trend was also obtained for the residential land use with an area about 1325.1 hectares (0.94%). On the other hand, rangelands (13.4% of the study area) showed the highest reduction in area (18857.63 hectares).
 

کلیدواژه‌ها [English]

  • land use changes
  • satellite images
  • Omidiyeh
  • the maximum likelihood
  • fuzzy Artmap method
 

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