سنجش تغییرات کاربری اراضی با تاکید بر باغ شهرهای پیرا شهری زنجان

تغییرات کاربری و پوشش زمین تحت تاثیر عوامل مختلفی در دهه‌های اخیر با شدت و گستردگی بی‌سابقه‌ای منجر به تخریب اکوسیستم‌ها به‌ویژه در نواحی پیراشهری شده است. هدف اصلی این پژوهش بررسی تغییرات کاربری اراضی پیراشهری زنجان با تاکید بر باغ شهرها در سه دهه اخیر بود. پژوهش حاضر ازنظر روش تحقیق، توصیفی–تحلیلی و از نوع تحقیقات کاربردی است که با تکیه‌بر تصاویر ماهواره‌ای لندست 5، 8 و 9 در بازه زمانی 30 ساله از سال 1372 تا 1402 می باشد. برای طبقه‌بندی تصاویر ماهواره‌ای از روش طبقه‌بندی نظارت‌شده فازی استفاده‌شده است. نتایج نشان داد بیشترین رشد اراضی ساخته‌شده در فاصله سال های 1382 تا 1392 با 1193 هکتار رخ‌داده و در سال‌های اخیر روند آن کندتر شده است. باغات ابتدا افزایش و سپس از سال 1392 کاهش‌یافته‌اند. هم چنین، منابع آبی و اراضی کشاورزی پس از یک دوره افت، در سال 1402 بهبودیافته‌اند. در مقابل، مراتع یک‌روند مستمر کاهشی داشته است. این پژوهش بر اهمیت پایداری اراضی باغ شهرهای پیراشهری شهر زنجان تاکید دارد و لزوم استفاده از رویکردهای کارآفرینانه جهت پایداری در کشاورزی شهری پیشنهاد می‌کند. یافته‌ها نشان می‌دهد که سیاست‌گذاری و مدیریت دقیق کاربری اراضی باغ شهرها در پیرامون شهر زنجان می‌تواند 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.