تبیین الگوهای پراکنده رویی پیراشهر کرج

آخرین یافته‌های علمی موجود در حوزه پراکنده‌رویی شهری اغلب به گونه‌شناسی توجه کرده‌اند؛ ازاین‌رو در مقاله حاضر باهدف شناسایی انواع مختلفی از گونه‌های پراکنده‌رویی شهری در کلان‌شهر کرج سعی شده است دیدگاه‌های موجود در گونه‌شناسی، شاخص‌های شناسایی هرگونه و چگونگی طبقه‌بندی گونه‌های مختلف در کلان‌شهر کرج مورد بررسی قرار گیرد. محدوده مکانی پژوهش، مناطق 10گانه کلان‌شهر کرج بوده است. داده‌ها با استفاده از روش کتابخانه‌ای و میدانی جمع‌آوری‌شده است. نوع داده‌ها شامل داده‌های جمعیتی مرکز آمار و داده‌های مکان محور سازمان نقشه‌برداری کشور و شهرداری کرج بوده است. روش تجزیه‌وتحلیل داده‌ها به‌صورت کمی و با استفاده از تکنیک ضریب موران، تراکم کرنل، تحلیل چیدمان فضا، شاخص شکل و منطق بولین انجام‌شده است. نتایج حاصل حاکی از آن است که شهر کرج دچار رشد غیر سازمان‌یافته و بد‌قواره بوده و با گونه‌های مختلفی از پراکنده‌رویی شهری مواجه می‌باشد. گونه‌ی تراکم پایین و پیوسته پراکنده‌رویی شهری بیشترین حجم از مساحت شهر را در برگرفته است و عمدتاً در لبه‌های شهری کرج قرار دارد. هرچند گونه‌های دیگری ازجمله پراکنده‌رویی خطی یا نواری، پراکنده‌رویی جهشی یا گره‌گرهی نیز در این شهر وجود دارد؛ اما غلبه با گونه‌ی پراکنده‌رویی پیوسته با تراکم کم یا پراکنده‌رویی لبه‌ایی است؛ بنابراین می‌توان گفت پراکنده‌رویی در شهر کرج با یک شکل و الگوی واحد رشد و توسعه پیدا نکرده است؛ بلکه با اشکال و گونه‌های مختلف همراه بوده است.

explanation of the dispersion patterns of peri-urban areas of karaj

typology of dispersal in peri-urban areas of karajabstractthe latest scientific findings in the field of urban sprawl have often focused on typology; therefore, in the present article, with the aim of identifying different types of scattered urban species in the metropolis of karaj, an attempt has been made to examine the views on typology, identification criteria of each species and how to classify different species in the metropolis of karaj. the research area was 10 areas of karaj metropolis. data were collected using library and field methods. the data type included demographic data of the statistics center and location-based data of the national mapping organization and karaj municipality. the data analysis method was performed quantitatively using moran coefficient, kernel density, space arrangement analysis, shape index and boolean logic. the results indicate that the city of karaj is experiencing unorganized and ugly growth and is facing different types of urban dispersion. the type of low density and continuous scattering of urban sprawl covers the largest volume of the city area and is mainly located in the urban edges of karaj. however, there are other types, such as linear or band scattering, jumping scattering, or nodal scattering; but dominance is a continuous, low-density scattering or edge scatter; therefore, it can be said that dispersal in the city of karaj has not developed with a single form and pattern; it has been associated with various forms and species.keywords: urban sprawl, sprawl typology, linear sprawl, low density growth, discontinuous physical growth, karaj metropolis  typology of dispersal in peri-urban areas of karajabstractthe latest scientific findings in the field of urban sprawl have often focused on typology; therefore, in the present article, with the aim of identifying different types of scattered urban species in the metropolis of karaj, an attempt has been made to examine the views on typology, identification criteria of each species and how to classify different species in the metropolis of karaj. the research area was 10 areas of karaj metropolis. data were collected using library and field methods. the data type included demographic data of the statistics center and location-based data of the national mapping organization and karaj municipality. the data analysis method was performed quantitatively using moran coefficient, kernel density, space arrangement analysis, shape index and boolean logic. the results indicate that the city of karaj is experiencing unorganized and ugly growth and is facing different types of urban dispersion. the type of low density and continuous scattering of urban sprawl covers the largest volume of the city area and is mainly located in the urban edges of karaj. however, there are other types, such as linear or band scattering, jumping scattering, or nodal scattering; but dominance is a continuous, low-density scattering or edge scatter; therefore, it can be said that dispersal in the city of karaj has not developed with a single form and pattern; it has been associated with various forms and species.keywords: urban sprawl, sprawl typology, linear sprawl, low density growth, discontinuous physical growth, karaj metropolis typology of dispersal in peri-urban areas of karajabstractthe latest scientific findings in the field of urban sprawl have often focused on typology; therefore, in the present article, with the aim of identifying different types of scattered urban species in the metropolis of karaj, an attempt has been made to examine the views on typology, identification criteria of each species and how to classify different species in the metropolis of karaj. the research area was 10 areas of karaj metropolis. data were collected using library and field methods. the data type included demographic data of the statistics center and location-based data of the national mapping organization and karaj municipality.