سنجش تغییرات کاربری اراضی با تاکید بر باغ شهرهای پیرا شهری زنجان (مقاله علمی وزارت علوم)
درجه علمی: نشریه علمی (وزارت علوم)
آرشیو
چکیده
تغییرات کاربری و پوشش زمین تحت تأثیر عوامل مختلفی در دهه های اخیر با شدت و گستردگی بی سابقه ای منجر به تخریب اکوسیستم ها به ویژه در نواحی پیراشهری شده است. هدف اصلی این پژوهش بررسی تغییرات کاربری اراضی پیراشهری زنجان با تأکید بر باغ شهرها در سه دهه اخیر بود. پژوهش حاضر ازنظر روش تحقیق، توصیفی–تحلیلی و از نوع تحقیقات کاربردی است که با تکیه بر تصاویر ماهواره ای لندست 5، 8 و 9 در بازه زمانی 30 ساله از سال 1372 تا 1402 می باشد. برای طبقه بندی تصاویر ماهواره ای از روش طبقه بندی نظارت شده فازی استفاده شده است. نتایج نشان داد بیشترین رشد اراضی ساخته شده در فاصله سال های 1382 تا 1392 با 1193 هکتار رخ داده و در سال های اخیر روند آن کندتر شده است. باغات ابتدا افزایش و سپس از سال 1392 کاهش یافته اند. هم چنین، منابع آبی و اراضی کشاورزی پس از یک دوره افت، در سال 1402 بهبودیافته اند. در مقابل، مراتع یک روند مستمر کاهشی داشته است. این پژوهش بر اهمیت پایداری اراضی باغ شهرهای پیراشهری شهر زنجان تأکید دارد و لزوم استفاده از رویکردهای کارآفرینانه جهت پایداری در کشاورزی شهری پیشنهاد می کند. یافته ها نشان می دهد که سیاست گذاری و مدیریت دقیق کاربری اراضی باغ شهرها در پیرامون شهر زنجان می تواند از توسعه نامنظم جلوگیری کرده و تعادل فضایی ایجاد کند.Assessment of Land Use Changes with a Focus on Peri-Urban Garden Cities of Zanjan from 1993 to 2023
In recent decades, land use and land cover changes, driven by various factors, have led to unprecedented degradation of ecosystems, particularly in peri-urban areas. The primary aim of this study is to assess land use changes with an emphasis on the peri-urban garden cities of Zanjan over the period from 1993 to 2023. This research utilizes satellite imagery from Landsat 5, 8, and 9 across the 30-year period and applies the fuzzy supervised classification method to categorize the satellite images. The results indicate that the highest growth in built-up areas occurred between 2003–2013, followed by a slowdown in recent years. Gardens initially expanded but began to decline from 2013 onward. Similarly, water resources and agricultural lands, after experiencing a period of decline, showed improvement by 2023. In contrast, rangelands exhibited a continuous downward trend. This study emphasizes the importance of ensuring the sustainability of peri-urban garden cities in Zanjan and recommends the adoption of entrepreneurial approaches to promote urban agriculture sustainability. The findings highlight that precise land use policies and management for garden cities around Zanjan can prevent irregular development and foster spatial equilibrium. In recent decades, land use and land cover changes, driven by various factors, have led to unprecedented degradation of ecosystems, particularly in peri-urban areas. The primary aim of this study is to assess land use changes with an emphasis on the peri-urban garden cities of Zanjan over the period from 1993 to 2023. This research utilizes satellite imagery from Landsat 5, 8, and 9 across the 30-year period and applies the fuzzy supervised classification method to categorize the satellite images. The results indicate that the highest growth in built-up areas occurred between 2003–2013, followed by a slowdown in recent years. Gardens initially expanded but began to decline from 2013 onward. Similarly, water resources and agricultural lands, after experiencing a period of decline, showed improvement by 2023. In contrast, rangelands exhibited a continuous downward trend. This study emphasizes the importance of ensuring the sustainability of peri-urban garden cities in Zanjan and recommends the adoption of entrepreneurial approaches to promote urban agriculture sustainability. The findings highlight that precise land use policies and management for garden cities around Zanjan can prevent irregular development and foster spatial equilibrium. In recent decades, land use and land cover changes, driven by various factors, have led to unprecedented degradation of ecosystems, particularly in peri-urban areas. The primary aim of this study is to assess land use changes with an emphasis on the peri-urban garden cities of Zanjan over the period from 1993 to 2023. This research utilizes satellite imagery from Landsat 5, 8, and 9 across the 30-year period and applies the fuzzy supervised classification method to categorize the satellite images. The results indicate that the highest growth in built-up areas occurred between 2003–2013, followed by a slowdown in recent years. Gardens initially expanded but began to decline from 2013 onward. Similarly, water resources and agricultural lands, after experiencing a period of decline, showed improvement by 2023. In contrast, rangelands exhibited a continuous downward trend. This study emphasizes the importance of ensuring the sustainability of peri-urban garden cities in Zanjan and recommends the adoption of entrepreneurial approaches to promote urban agriculture sustainability. The findings highlight that precise land use policies and management for garden cities around Zanjan can prevent irregular development and foster spatial equilibrium. In recent decades, land use and land cover changes, driven by various factors, have led to unprecedented degradation of ecosystems, particularly in peri-urban areas. The primary aim of this study is to assess land use changes with an emphasis on the peri-urban garden cities of Zanjan over the period from 1993 to 2023. This research utilizes satellite imagery from Landsat 5, 8, and 9 across the 30-year period and applies the fuzzy supervised classification method to categorize the satellite images. The results indicate that the highest growth in built-up areas occurred between 2003–2013, followed by a slowdown in recent years. Gardens initially expanded but began to decline from 2013 onward. Similarly, water resources and agricultural lands, after experiencing a period of decline, showed improvement by 2023. In contrast, rangelands exhibited a continuous downward trend. This study emphasizes the importance of ensuring the sustainability of peri-urban garden cities in Zanjan and recommends the adoption of entrepreneurial approaches to promote urban agriculture sustainability. The findings highlight that precise land use policies and management for garden cities around Zanjan can prevent irregular development and foster spatial equilibrium. In recent decades, land use and land cover changes, driven by various factors, have led to unprecedented degradation of ecosystems, particularly in peri-urban areas. The primary aim of this study is to assess land use changes with an emphasis on the peri-urban garden cities of Zanjan over the period from 1993 to 2023. This research utilizes satellite imagery from Landsat 5, 8, and 9 across the 30-year period and applies the fuzzy supervised classification method to categorize the satellite images. The results indicate that the highest growth in built-up areas occurred between 2003–2013, followed by a slowdown in recent years. Gardens initially expanded but began to decline from 2013 onward. Similarly, water resources and agricultural lands, after experiencing a period of decline, showed improvement by 2023. In contrast, rangelands exhibited a continuous downward trend. This study emphasizes the importance of ensuring the sustainability of peri-urban garden cities in Zanjan and recommends the adoption of entrepreneurial approaches to promote urban agriculture sustainability. The findings highlight that precise land use policies and management for garden cities around Zanjan can prevent irregular development and foster spatial equilibrium.
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