فهرست مطالب

پژوهشهای جغرافیای انسانی - پیاپی 69 (پاییز 1388)

فصلنامه پژوهش های جغرافیای انسانی
پیاپی 69 (پاییز 1388)

  • 156 صفحه، بهای روی جلد: 20,000ريال
  • تاریخ انتشار: 1388/10/01
  • تعداد عناوین: 9
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  • مهدی قرخلو، ناصح عبدی ینگی کند، سعید زنگنه شهرکی صفحات 1-16
    با مطرح شدن توسعه پایدار شهری و لزوم توجه به همه ابعاد وجودی شهر اعم از زیست محیطی، اقتصادی و فرهنگی به عنوان پایه های توسعه پایدار شهری، مشکل سکونتگاه های غیررسمی وارد فاز مطالعاتی جدیدی شده است و محققان علوم انسانی با دیدی کلی و نگاهی جغرافیایی، پدیده اسکان غیررسمی در شهرها را مورد مطالعه قرار می دهند. این پدیده که در سال های گذشته و تا قبل از دهه 70 در ایران فقط از لحاظ توصیفی تعریفی مورد توجه بود؛ از دهه 70 به بعد با گسترش ابعاد آن، نه تنها خود محدوده سکونتگاه های غیررسمی، بلکه در برخی از موارد یک ناحیه و حتی منطقه ای را تحت تاثیر خود قرار می داد. در مقاله حاضر برای دستیابی به هدف تحقیق، که همانا تحلیل میزان پایداری سکونتگاه های غیررسمی شهر سنندج است، از روش تحلیلی توصیفی با استفاده از تعیین متغیرهایی در هریک از ابعاد سه گانه اجتماعی، اقتصادی و زیست محیطی پایداری شهری مانند شیب، سرانه ها، نوع مصالح ساختمانی، درصد باسوادی، نوع شغل، درصد بیکاری و درآمد خانوار استفاده گردیده است. نتایج حاصل از این تحقیق بیان می دارد که میزان پایداری در تمامی متغیرهای انتخاب شده بسیار پایین است.
    کلیدواژگان: اسکان غیر رسمی، توسعه پایدار شهری، پایداری اجتماعی، فرهنگی، پایداری زیست محیطی، سنندج
  • زهرا پیشگاهی فرد، ناصر سلطانی خلیفانی صفحات 17-27
    سازماندهی سیاسی فضا یا سیاست های آمایش سرزمینی، از موضوعات مطرح در حوزه مطالعات جغرافیای سیاسی به شمار می آید. نمود عینی سیاست های آمایش سرزمینی حکومت های مرکزی را در مناطق مرزی با اعمال راهبردهای هدفمند، به منظور هدایت متوازن دو الگوی امنیت و توسعه، می توان مشاهده کرد. در نوشتار حاضر، آزمون فرضیه وجود رابطه بین سیاست های آمایش سرزمینی ایران و ترکیه در مناطق مرزی همجوار، با شرایط و مناسبات حاکم بر سیاست داخلی و خارجی هر یک از این دو کشور، از طریق تحلیل یافته های نویسندگان و داده های آماری قابل استناد دو کشور، موردنظر بوده است. تحلیل یافته ها ما را بدین نتیجه رهنمون ساخت که در بیشتر مواقع، تنظیم سیاست گذاری های مناطق مرزی بدون توجه به مقتضیات داخلی و با توجه به شرایط کشور مقابل، پیگیری و اجرا شده است. این امر، تداعی گر حاکمیت الگوی ایدئولوژی محور بر الگوی عدالت محور در اجرای سیاست های آمایشی دو کشور در مناطق مرزی همجوار بوده است؛ که نتایج چندان امیدوارکننده ای را برای بهبود شرایط حاکم در مناطق مرزی، آشکار نمی سازد.
    کلیدواژگان: آمایش سرزمین، مناطق مرزی، ایران، ترکیه
  • احمد پوراحمد، محمد اکبرپور سراسکانرود، سمانه ستوده صفحات 29-50
    منطقه 9 تهران، با جمعیت 165649 نفر، منطقه ای حاشیه ای است که در منتهی الیه غرب تهران قرار دارد. این منطقه، 7‎/2 درصد از کل مساحت تهران را تشکیل می دهد. منطقه 9 از شمال با مناطق 2 و 5، از جنوب با مناطق 17 و 18، از غرب با منطقه 21 و کرج و از شرق با منطقه 10 همجوار است. این منطقه دارای 2 ناحیه و 8 محله است. میزان فضای سبز منطقه (67‎/3 مترمربع برای هر نفر)، اختلاف فاحشی با شاخص های تعیین شده جهانی (20 تا 25 مترمربع برای هر نفر) دارد. پس از مطالعه وسعت، شعاع عملکرد و حد مطلوبیت پارک های شهری، مشخص گردید که کمبود فضای سبز در زمینه پارک های شهری بزرگ تر و در مقیاس ناحیه ای و منطقه ای است. همان طور که از نتایج پرسش نامه برمی آید، درصد بالایی از پاسخ دهندگان (7‎/28 درصد) برای رفع نیازهای شان در زمینه فضای سبز، به خارج از منطقه مراجعه می کنند. البته وجود پارک المهدی با امکانات کافی و خاصیت منطقه ای، جوابگوی بسیاری از نیازهای مردم ساکن منطقه 9 است، که خود نقطه قوتی به شمار می آید. وجود کاربری های ناسازگار شهری در منطقه 9، نکته بسیار مهمی است که در نوشتار حاضر به آن توجه شده است.
    کلیدواژگان: فضای سبز، پارک، مدیریت فضای سبز، منطقه 9 شهرداری تهران
  • بابک میرباقری، علی اکبر متکان صفحات 51-66
    فرایند توسعه شهرها همواره یکی از مهم ترین موضوعات پیش روی پژوهشگران مسائل شهری بوده است. افزون بر میزان رشد شهرها در زمان های مختلف، شکل و الگوی توسعه نیز مورد توجه بوده است. در پژوهش حاضر از یکی از توابع تحلیلی سامانه اطلاعات جغرافیایی (GIS)‎ به نام تابع Ripley’s K استفاده گردید. براساس این تابع می توان وضعیت تمرکز (خوشه ایبودن) نقاط نمونه را نسبت به حالت تصادفی براساس شمارش تعداد نقاط در فواصل مختلف مورد مقایسه قرار داد. در تحقیق حاضر، براساس تابع Ripley’s K میزان تمرکز فرایند توسعه شهری به صورت کمی برای سه محدوده شهری حومه جنوب غرب تهران شامل اسلام شهر، رباط کریم، نسیم شهر و برای دو دوره سال های 1371 تا 1375 و 1375 تا 1381 محاسبه و نتایج آن ارائه گردیده است. داده های مورد نیاز این تحقیق از تصاویر ماهواره ای SPOT استخراج شد. نتایج تحقیق نشان داد که درمجموع تمرکز فرایند توسعه در دوره زمانی سال های 1375 تا 1381 در محدوده شهرستان اسلام شهر، افزایش و در محدوده شهرستان های رباط کریم و نسیم شهر کاهش یافته است. از مزیت های روش به کار گرفته شده در این تحقیق، امکان به کارگیری آن در مناطق مختلف و برای دوره های زمانی متفاوت و در فواصل (مقیاس های) مختلف است.
    کلیدواژگان: تابع Ripleys K، فرآیند خود به خودی، فرآیند خودسازمان ده، شبیه سازی مونت کارلو
  • تحلیل عوامل موثر بر الگوی مشارکتی توسعه روستایی / مطالعه موردی: حوضه آبخیز حبله رود
    محمدرضا رضوانی، سیدعلی بدری، محمد سلمانی، بهروز قرنی آرانی صفحات 67-86
    امروزه توسعه روستایی بدون نهادینه شدن مشارکت، امری دور از دسترس تلقی می شود. به نظر می رسد سه پیش شرط یا زمینه اساسی برای مشارکت اجتماع های محلی در برنامه های توسعه روستایی باید فراهم شود: اجتماعی، اداری مدیریتی، و ساختاری. هدف پژوهش حاضر، تحلیل تاثیر این عوامل بر مشارکت روستاییان، سازمان های غیردولتی و اجتماع محور در توسعه روستایی در حوضه آبخیز حبله رود است. داده های مورد نیاز با استفاده از مصاحبه با آگاهان محلی گرد آوری و با روش تحلیل محتوا، تحلیل شده است. نتایج نشان می دهد که در بین عوامل اجتماعی، «مهارت های رهبری و سازماندهی در میان روستاییان»، بیشترین تاثیر را داشته است. در این زمینه شایسته است مدیران و کارشناسان و طراحان داخلی پروژه های مشارکتی در هرگونه فعالیت مشارکتی، انعطاف پذیری بیشتری در مورد روستاییان از خود نشان دهند و نقاط ضعف موجود را برطرف سازند. برنامه ریزان نیز باید توجه داشته باشند که یکی از عوامل مهم، برای بیشینه سازی اثربخشی پروژه های مشارکتی «فرایند تخصیص منابع و دانش و اطلاعات به روستاییان» است تا «آگاهی روستاییان نسبت به حقوق قانونی و توانمندی های شان برای تغییر» افزایش یابد.
    کلیدواژگان: الگوی مشارکتی توسعه روستایی، عوامل اجتماعی، اداری، مدیریتی و ساختاری، تحلیل محتوا، حوضه حبله رود
  • نقش توانمندسازی در توسعه کشاورزی / مطالعه موردی: استان اردبیل
    عبدالرضا رکن الدین افتخاری، مهدی پورطاهری، منوچهر فرج زاده، وکیل حیدری ساربان صفحات 87-103
  • اسفندیار زبردست، خلیل حاجی پور صفحات 105-121
    «مناطق کلان شهری» از پدیده های نوظهور قرن بیستم اند که در آغاز هزاره سوم میلادی به الگوی غالب شهرنشینی تبدیل شده اند. این مناطق کلان شهری که با مشخصه هایی چون دگرگونی در نقش و عملکرد، تحول در شکل و ساختار و تغییر معنا و مفهوم مواجه شده اند، تحت تاثیر نیروها و عوامل مختلف در طول زمان و بنا به مقتضیات مکانی در کشورهای توسعه یافته و در حال توسعه، سازوکار و فرایند خاصی را در شکل گیری و تکوین و دگرگونی شان طی کرده اند. مطالعه حاضر با استفاده از روش اسنادی و به کارگیری منابع و متون مختلف و با هدف شناخت فرایند شکل گیری و تکوین و دگرگونی مناطق کلان شهری صورت گرفته است. یافته های مطالعه نشان می دهد که این امر (شکل گیری، تکوین و دگرگونی) در مناطق کلان شهری محصول اندرکنش همزمان دو فرایند تمرکزگرایی و تمرکززدایی است. گرایش تمرکزگرایی و تمرکززدایی به پویشی در سازمان دهی فضایی کلان شهرها و مناطق کلان شهری منجر گردیده است که می توان آن را پویش همزمان پیوستگی و گسیختگی نام نهاد. در فرایند تمرکزگرایی، اساسا عملکردها و خدمات سطح برتر و جهانی در شهر مرکزی و هسته ها و مراکز اقتصادی شهر متمرکز می شوند؛ و در مقابل، طی فرایندی تمرکززدا، بخشی از فعالیت ها و خدمات و جمعیت وابسته به آنها به مراکز دیگر شهری در منطقه ای کلان شهری منتقل می گردند.
    کلیدواژگان: مناطق کلان شهری، فرایند کلان شهری شدن، پراکنده گویی، تمرکز گرایی، تمرکز زدایی
  • عیسی ابراهیم زاده، قاسم رفیعی صفحات 123-138
    در دهه های اخیر، شهرنشینی بر شهرسازی مقدم شده و رشد شهری را با مشکلات جدی روبه رو کرده است. شهر مرودشت نیز در طول دوران حیات بیش از 70 ساله اش به طور نامتوازنی رشد کرده است. روش تحقیق در پژوهش حاضر تحلیلی تطبیقی بوده و با بهره گیری از مدل های آنتروپی شانون و هلدرن به تحلیل چگونگی گسترش این شهر پرداخته شده است. بررسی داده ها، نشان می دهد که در مرودشت تا سال 1375 شهر به صورت فشرده رشد کرده؛ اما از این سال به بعد رشد بدقواره شهری (امپرال) رخ نموده که میزان آن براساس این مدل ها 33 درصد بوده است. هدف تحقیق حاضر، ساماندهی الگوی فیزیکی گسترش شهر مرودشت است. براساس نتایج حاصل از تحلیل یافته های تحقیق، با توجه به گسترش شکاف ارزش آنتروپی ناشی از رشد افقی و اسپرال شهر، که خود متاثر از الگوی رشد خطی آن است، الگوی قطاعی متمرکز به عنوان الگوی مطلوب گسترش آتی آن تشخیص داده شد. برای تحقق این امر مهم بایستی با تقدم زمانی و مکانی از الگوی گسترش تمرکز درون بافتی و در عین حال الگوی پیوسته قطاعی با توسعه سیستم شبکه ارتباطی متقاطع و مورب بهره گرفت.
    کلیدواژگان: گسترش فیزیکی، مدل شانون، مدل هلدرن، الگوی رشد شهری، مرودشت
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  • M. Gharakhlou M., N Yangi Kand, S. Zanganeh Shahraki Pages 1-16
    Sustainable development that became the newest approach in last periods in apposition of scientific current theories and practical policies is a reaction for a kind of development which is not sustained and sustainable in long term and short term for all of human being. One of the most issues in sustainable development is the analysis of sustainability level of a number of cities or different zones of a city or town. Informal settlement which resulted from rapid and unplanned physical development is a challenge for applying sustainable development. Nowadays all of cities in all around of the world faced with this urban problem. For instance, Engels pointed out to informal settlement in England resulted from industrial revolution. According to current statistics, there are more than 8 million people who live in informal settlements in Iranian cities, so this encourage attention to this in studies like this paper. With the raising of urban sustainable development and paying attention to all aspects of a city like environmental, economical, and cultural aspects as the basic of urban sustainable development, the problem of informal settlement arrived a new phase and liberal art scholars studied informal settlements in cities holistically and geographically. As the result of that, the informal settlement phenomenon is expanding rapidly and irregularly. This phenomenon had a descriptive – definitive aspect in previous years and before seventies in Iran, but after nineties and the development of this phenomenon, not only did it influence the limit of informal settlement, but also influenced an area. Informal settlement is poverty and inequality in one hand and neglecting low-income groups in planning specially housing and physical planning in other hand. Economic poverty, inequality distribution and concentration of wealth and in developing countries like Iran result in vast emigration in order to achieving using from job opportunity, income, more services and facilities and hope to better life. In this process, low income and saving of emigrants cause to not inhabit in downtown and thus they forced to dwell in periphery parts of cities. This paper is analyzing sustainability level (physical, cultural, social and economical) of informal settlements in Sanandaj city in west Iran that has more than 10 informal neighborhoods with a total of 197532 inhabitant people based on 2007 census. Firstly, approaches and points of view about the reasons of informal settlement pointed out like liberalism, non-liberalism, political economy, new socialist. The methodology is based on questionnaire. Therefore, with the way of accidental sampling and close questionnaire, 150 sample used and the resulted analyzes in SPSS and Excel software. Because sustainable development has 3 main aspect or dimension (physical, social-economical and cultural aspects), we introduce a few indexes in each part. In physical aspect used following: slope, urban land per capita, kind of building materials. Results in this part show that most of the construction located in high slope places and have unstable materials in construction, and the average land per capita in Sanandaj informal settlements is just 25 meters that is much fewer than average of Iranian cities (about 75 meters). In cultural and social part, the analphabet percent in those settlements is much fewer than Iran, Sanandaj and Kordestan province, family is more extended as well, and they do not have enough space for pleasure and free time that cause to have bad ways for spending their free times like staying in home, visiting relatives, wasting time in streets, chat with neighborhoods, and finally going to traditional coffee shops. People who live in these zones of city spend their fewest free time to study. In economic dimension surveyed resulted show that most of inhabitants are workers, blue color and have jobs like informal business. In addition to this, household income is so low that about 90 percents of them are under poverty line and some families live with a wage lower than 100 dollars per month. Unemployment percent is another studied factor that is 36 percent that is high in comparison with Iran percent that is %15 and Sanandaj is %25.9 and Kordestan province is %20.5. All of the selected factors show that sustainability level of informal settlement in study area is much lower and it shows that policy makers, decision makers, administrations and staff should attention more and more to this unsustainable regions of city in the plans and should locate these people in the head and focus of planning. Because informal settlement in other Iranian cities are like Sanandaj, resulted can use for others.
    Keywords: Informal settlements, Urban sustainable development, Economical, Environmental sustainability, Sanandaj
  • Z. Pishgahi Fard, N. Soltani Khalifani Pages 17-27
    Only policy of more countries with the unstable security conditions in response to threats from border regions such as severe poverty and deprivation in the border regions, breach of social and discrimination of ethnic- culture and insecurity through illegal immigrants is intensified security mechanisms and perform the land use policies oriented ideology and security. In this regard, experience of several decades from organizing political space in Iran on the central government attitude to development in the peripheral areas has been suggested that management of political concerns in central government is dominant policy (Andalib, 2001: 95). However, the result from such an approach isn’t so successful and heavy costs has imposed on the central government and local communities. The adjustment in this approach and orientation with schematization to the economic development and raise living standards in local communities is factor that test yet. In this article was the effort that using analysis of the findings by researchers and available statistical data for border areas in two neighboring countries, land use policies of Iran and Turkey evaluate in neighbor border regions to find answers to this question that land use policies in these two countries conforms with Which the internal and external long-term strategy? Writers is argument that although the land use policies of Iran and Turkey done within the territorial space each of the two countries however, the influential factors on the formation of land use policies programs has dimensions of the broader from internal considerations and in many cases, preparatory two countries to land use policies isn’t in line interests of local communities and has rooted more in international considerations such as effort`s Turkey for avoid the formation of territorial integrity in within Kurds, achieve ideal cosmopolitan Turks using back to historical and ethnic roots. But Iran also is following maintain demographic makeup in northwest border areas with Turkey. In fact, land use strategies of Iran and Turkey in neighbor border regions is sometimes close and sometimes far, however is almost the same result. Although in the fact, there isn’t doubt that these two countries have set their border policy to the conditions of neighboring country, the results doesn’t very much help to release the two countries on issues border areas. The misuse of ethnic groups in border areas against the neighboring country (Olson, 1998: 41), oriented ideology and security in economic, social and cultural policy in study areas (Hafeznia and Ahmadi, 2005: 5) and finally, conditions in Iraq north (Hostrup, 2004: 106-7) is normally strategy the Iran and Turkey in border regions. Being obvious of the deprivation and backwardness of border regions in many development indicators in compared with total average (Statistical Yearbook of Turkey, 1998: 4 & Statistical Yearbook of Iran, 2006), strengthen the growing of thinking “Alienation” among the residents in these areas (Ahmadi, 2006: 215), formation of incorrect economic relations such as smuggling of goods and alcohol, decreased acceptance of national identity in these areas, economic and human costs for security in these areas, disrupt the development plans in these areas by the opposition groups to pressure the two countries central government are likely and predictable results in border areas studied. With using of the indicators studied in this research (employment in the three economic sectors and immigration), could be concluded that resources mismanagement and insisting on the continuity of past policies in neighbor border regions between Iran and Turkey has caused loss of capacity in local communities on the one hand and costs increase the central government on the other hand. But with a historical attitude, negative consequences of such land use policies is for Iran more Turkey, so that the formation of intensification of efforts by opposition groups such as Pejak in extensive parts of the border areas of northwestern Iran is an event which occurred in recent years and has led to a change of balance to the loss of Iran against Turkey. Entering Kurds as it controlled to the political and economic life, granting privileges in a series of cultural and linguistic issues to Kurds and solve the problem of Kurdish areas in the design development of large and ambitious are taken by the Government of Turkey (Center for Political and International Studies, 1995: 199). Continuation of the process and lack of understanding based on conditions of time and space in the preparation of these border areas of Iran, Turkey will stimulate for following strategies. Therefore, the government in Iran as the most important pillar of policy, planning and even preparatory projects, no choice but the testing global experience, including land use of border areas in America - Mexico (Coleman, 2005), the borders of East - West Germany (Jones and Trevor, 1994) and even Turkey - Syria.
    Keywords: Iran, Turkey., Land use, Border regions
  • A. Pourahmad, M. Akbarpoursarskanroud, S. Sotudeh Pages 29-50
    Todays, we cannot imagine cities without green space in different kinds. Development of the cities cause to intensify unusual and unstable problem of urban development which environmental pollution is one of the most important problems and it will cause destroying the green space of the cities and changing the usage of these lands. Development of technology has such a bad effect on the21 st humans feeling and emotions and separates him from nature and turns them to tired and nervous people who seem moving. The only relationship between human and nature is when they go to the parks and public gardens.Urban public gardens are too important so that today they are one of the development Indexes. and contraction of urban green spaces no alone to reason important intended those case is attention. but reason of the designs to protection and equilibrium the urban environment and adjustment air contamination, spiritual and corporeal training city resident of fulfill is valuable this of search firstly by expansion and analyzes and no monotonous green space of zone9 and secondly have pay calculation of green space zone9 share and situation ideal. method of this essays used composition of methods documentary –analytic and measurement. It was gathered mainly of data by distribution of questionnaire way between park goner and methods of this are documentary, analytical and measurement methods and required analysis have been done about it. And end with use to statistical spss have analyses. The population of zone 9 of Tehran is 165619Person which is located in west of Tehran. Its area is 2.7% of the whole city. Zone 9 is surrounded by zones 2 and 5 from north, zones 17 and 18 from south, zone 21 and Karaj from west and zone 10 from east. This zone has two areas and eight sectors. The average of green space is3/67 sq meters per person. According to UN. standards that say: 20-25 meters/person, this is not enough. for green space and parks in the zone. Parks one of agents have cities shape and reason helmet remarkable green space, in addition to have perimeter subsistence impressions to cause of creation alive landscapes and helmet green to city beauty to have just shares. After studying of extent, radius function urban parks have distinguished that of shortage beyond to background elder than urban parks and to the regional and district scale and this case must thing said to most parks and gardens zone9 city Tehran, less to one hectare. and this case to weathers of zone no impression. Access of enough to parks in zone is obligatory. So that limitations access income little people one of nature is compensation. Because zone 9 city Tehran has one of zones middle and go thou down and dweller worker Tehran. Parks of extinct zone number of for park almahdi, azadi, jorjani and kokab that over basis of measurement in the middle extince parks to zone most of size to respect have measurement selected. Two parks almahdi and azadi that to north zone have situated, elder than two parks zone southern. Reasons under to cause this for parks to zone for fill selected questionnaire.1- sample parks also to north and southern zone 9. 2-the most of park zone and including of best possibilities zone9 to kind of artificial lake, skit earth, athletic equipment,… to causes of parke almahdi have played farther up zone9. 3- park azadi to reason of the fact that guidance and primary schools of doors that have opened. And this sight state of exceptional in the lessen cases to city Tehran with on to face. 4- park jorjani in the southern zone and near odd texture to settle. In this sight economical situation people of to this park to have recourse comparatively down and parks with quarter access and scale many small and possibilities limited. This rezones and contraction of neighboring that with industrial factories, example of flour factory and rubber to caused so that this park selected. 5- Park kokab in explained open to revive on the part of zone municipality and sensitiveness inhabitant's reason of longer process improve so to happen this park to southern zone to cause of park kokab selected. This research achievements indicates that green spaces usually are as main elements in forming to socials sustainability urbans but Questionnaire outputs(28/7./.) show that most of the people use parks that are outside of the zone 9, which is considerable point. Almahdi park has Certainly Existence with Possibilities and Property helmet Regional 9,Responsibility Numerousness of Needs People Dwelling Regional 9, who Carrying this helmet Point Strength. Existence Land uses Urban an Suitable to Regional 9, Point of Numerates Important have Receive Attention.
    Keywords: Management of urban green space_Zone 9 of Tehran._Park_Green space
  • B. Mirbagheri, A. A. Matkan Pages 51-66
    There have been different types of analytical functions for the recognition of geographic phenomenon distribution patterns which have been introduced in GIS so far, which among them K Function known as Ripley’s K function is the evolved one. Based on this function the distribution of a geographic phenomenon in the region compared to random distribution is assessed and the level of clustering (concentration) is measured through different distances. So In this research the level of clustering of urban development has been measured at different distances and time periods. Urban growth is a process combining spontaneous and self-organizing growth (Wu,2000). The self-organizing reflects a process that results from the previous development in the immediate neighborhood (Wu, 2002). The resulting pattern of this process is most agglomerated or clustered. The existence of an environmental or socio-economic factor in a region can contribute to clustering of development and as a result another process called spontaneous growth is outlined. This process occurs under of impacts of such factors that are beyond of neighborhood areas. The clustering level of development is less in areas which are more affected by spontaneous development, in other words in this process the level of clustering is less in shorter distances. The main issue in the evaluation of clustering level is acquiring an index whereby the clustering or dispersion levels of developed area in different distances and in overall are somehow measured, that in this research it’s been implemented by using K Function in GIS. The counting of points which are placed in each distance zone, is the basis of calculating the Ripley’s K Function. The Transformed K Function is often referred to as L(d) in many references. This function is used for better recognition of point distribution pattern against random distribution and to ease drawing of graphs and is defined as the below equation: (Mitchell, 2005)In which L(d) is the transformed K Function value at distance d, I(dij)=1 if the distance of point i to j is less than d and otherwise I(dij)=0. A is the area of region and N is the number of observed points in the region. One of the disadvantages in calculating K Function is the existing points near the border of study area and emergence of edge effects. The most reliable way to eliminate the edge effects is simulating random distribution of points and comparing the outcomes with real observed points. If the calculated value of L(d) results from observed points is bigger than L(d) values from random points, then it can be said that observed points are clustered. Given the remarkable development of urban areas on the suburbs of south eastern Tehran, the extents of towns: Islamshahr, Robatkarim and Nasim Shahr were chosen separately in this research and the level of clustering of urban developments was measured at time periods: 1992 to 1996 and 1996 to 2002. The developed urban areas were extracted from Spot satellite images, then the raster development layer of urban areas were extracted in the form of points in which each point represents one developed 20m*20m pixel, Eventually used as K Function input. For the true judgment and comparison about clustering level of development in different time periods there must be a relative index defined for the comparison of real distribution of points with random distribution. If LS(d) is assumed as K Function’s maximum value in the definite distance of d amongst implemented random simulations (Monte Carlo simulation) – in this research, random simulations executed 9 times (to reach the significant level of 90%) – and assuming LO(d) as the value of K Function for observed (real) distribution of points at distance d, then ∆L(d) which is indicative of clustering measurement of development in the specified d distance is defined as follows: The above equation is calculated separately for each distance (d) in each study area. The bigger index demonstrates more clustering of developed points and closeness to zero demonstrates the resemblance of developed points to random distribution. Eventually can be defined according to the following equation as an index for total clustering measurement of development in the entire extent of each study area: In which n is the number of considered distances for implementation of K Function, the bigger indicates more clustering of development in the study area. In this research ArcGIS 9.2 software was used for implementation of Ripley’s K Function. This software has also the capability of executing the simulation of random points. The K Function was implemented for developed points in the years of 1996 and 2002 for every three town extents. Random distribution was also simulated for every region and ultimately the indexes: LO(d), LS(d) and were separately calculated for each of them. The resulting outcomes from calculation of - as an index for overall measurement of clustering in the study area for developed areas- showed that the clustering of development has significantly decreased in both Nasim shahr and Robat karim from 1996 to 2002 therefore we can conclude that the development process in the determined area in these two regions are heading towards more dispersion but in the Islamshahr the clustering of development was higher than previous period. Generally, we can say that Ripley’s K Function provides a proper estimate of the clustering of urban development at different periods and distances that can be a beacon for researchers in recognition of different patterns of the development process.
    Keywords: Spontaneous process_Self organizing process_Ripley's K Function_Clustering_Monte Carlo simulation
  • M. R. Rezvani, S. A. Badri, M. Salmani, B. Gharani Pages 67-86
    One of major challenges of socioeconomic planning (generically) and rural development (typically) in Iran is implementing of participation, as nowadays-rural Iran meets participation crisis. Today it esteems that in the absence of internalizing participation, rural development would be inaccessible. It seemed that it must be provide three preconditions or effective factors for exercising community participation: social, bureaucratic – managerial and structural. Goal of this article is analyzing impacts of the factors on villagers, NGOs, and CBOs’ participatory rural development in Hableh River catchment area. Therefore, it was consider these effective factors on villager's direct participation in rural development plans from villager's viewpoint. UNDP and Iranian Ministry of Agriculture (National Organization for Forest, Range, and Watershed) has performed National Action Plan for Sustainable Management of Soil and Water Resources since 1996. The goals of the project are two: (1) access to a participatory management model of natural resources, and (2) improving life quality of users of natural resources through emphasizing sustainable development. The project contains four subprojects. Experts of the project selected eight villages in Watershed Subproject. Because participatory research must be perform in community level, the case study cannot be large scale, so I consulted experts of the project and selected Lazour and Najafdar villages. Data collecting method is key informant interview, and questionnaires were open-end and semi-structured. Key informants were classified 5 groups: (a) local facilitators, (b) members of Sustainable Development Core (such as local designers and planners) (c) local contractors (d) members of Coordination Council (such as elders) (e) managers of the villages such as "Dehyar" (like mayor in cities) and members of Rural Council. Therefore, all key informants are from these two villages: 12 persons from Lazour and 4 persons from Najafdar concerning their population and proceed of the project. We lived in Lazour one month, recorded men and women's experiences, and observed their participatory projects. Then data collected in MS-Word word processor, accorded with official documents of the project. Data analyzed through content analysis method. This method regards to replicable (objective and systematic) and valid data. According the method, key informant's sentences spread in three designated factors, delivered in a frequency table. Frequency analysis of 1255 sentences of the interviews shows that bureaucratic – managerial factors with frequency of 504, social factors with frequency of 450, and structural factors with frequency of 301 respectively are important. The positive social factors more than other factors help successful socioeconomic rural participation so that local informant's sayings show 272 positive sentences of all 691 positive sentences. The positive bureaucratic – managerial factors with frequency of 248, and the positive structural factors with frequency of 171 put in next order: - Among Social factor: “Leadership and Organization Skills among Villagers”, - among bureaucratic – managerial factors, "Institutionalization and the Formation Popular Organizations and Civil Society to Attract Rural Participation", - and among structural factors, "Flexibility for Transferring Part of Power and Authority to Villagers" have most positive effect on the project. The negative bureaucratic – managerial factors with frequency of 256 sentences more than other factors affect socioeconomic rural participation, then social factors with 178, and structural factors with 130 sentences put in next order: - Among Social factors; “Leadership and Organization Skills among Villagers”, - among bureaucratic – managerial factors; "The Necessary Flexibility for Changing and Dynamic Processes of Participation" and "Process of Allocation of Knowledge and Information Sources to Villagers", - and among structural factors; "Villager's Knowledge than Their Legal Rights and Abilities to Change", have most negative effect on the project, therefore the above-mentioned factors need more attention of internal and external managers and experts for better participatory rural development plans. Results show that concerning social factor of participation, "Leadership and Organization Skills among Villagers" had most effective. Internal managers, experts, and plan designers would declare more flexibility in any participatory action in the village and should resolve all weaknesses that accounted in the research. Planners who want to maximizing effectiveness of participatory projects, should pay attention to one of important factors "Process of Allocation of Knowledge and Information Sources to Villagers" in order to increasing "Villager's Knowledge than Their Legal Rights and Abilities to Change".
    Keywords: Hableh River national project., structural factors, Content analysis, bureaucratic managerial, Participatory rural development model, Social
  • A. Roknaldine Eftekhari, M. Purtaheri, M. Farajzade, V. Heidari Sarban Pages 87-103
    Although the agricultural development is resulted from economical, social and environmental factors however in one regard agricultural development in a large amounts is affected from alteration and evolution of knowledge and skill to increase efficiency, effectiveness and sustainability. Because many investigators believe that increasing of cognitive capacities supply (awareness, knowledge) intransitive nucleus for attaining to farmers empowerment–that is from an element of sustainable development- and the end resulted in agricultural development. The total aim of this research is the role of empowerment on agricultural development. The kind of research method is analytical and explanatory. in the first this research by reason of representation stage quality of evaluation accomplishment and making priority and by reason of making easy of model explanation was selected effective index fifty on agricultural development of rural sample twenty seven in the form of stratified random and two hundred fifty six rural farmer by through of Cochran's test in the form of random. Also for appointment of indexes weight meantime from world experiments on addition from point of view of twenty experiments of rural development section of agricultural jihad ministry were used. Also on suitable time (1387) raw data for measuring of index by through of interview, observation, questionnaire, attribution and evidences were collected. In addition for appointment of validity containing of questionnaire from point of view different experts were used. Also at this research for determination reliability of the questionnaire quantities from corn Bach alpha coefficient and SPSS software was used. At this research the rate of mentioned alpha amounting to (%75) was calculated. In addition for making priority of the agricultural development surface of province sample rural from TOPSIS method was used. At this research level of significances the rate of calculated P between self-determination, competence, and effectiveness variables with agricultural development variable were seen less than %1. At the result strong relation with positive direction on agricultural development among the sample rural with dimensions self-determination, competence effectiveness exists. However on the other dimension significance relation did not exist. At the end statistics analysis shows that farmer empowerment on the agricultural development of ardabile province has been effective. Such correlation of the agricultural development on the majority of the empowerment dimensions on the form of research assumption has demonstrated.
    Keywords: Rural farmers, Empowerment knowledge, Jahadkeshawarzi workers, Ardabil province., Agricultural development knowledge
  • E. Zebardast, Kh Hajipour Pages 105-121
    Metropolitan regions are one of the emerging phenomena of the 20th century which have turned to a dominant pattern of urbanization at the beginning of third millennium. Although the metropolitanization phenomenon has been formed as a result of economic and spatial rules and interactions at the global level, and continue their evolution process, but lack of adequate research and strategic studies at the metropolitan area scale has resulted in non-formation of required institutions at the level of metropolitan areas. These Metropolitan Regions which have experienced transformation in role and functions, evolution in form and structure and changes in the meaning and concept, due to various forces and factors, have followed a certain process and mechanism in formation, evolution and transformation temporally and spatially, and in both the developed and the developing countries. It was hoped that the introduction and implementation of decentralization and rural development policies would result in decreasing the social, economic and spatial inequalities in developing countries. After two decades, however, the cities, specially the metropolises have been turned into engines of growth and economic development. The globalization phenomenon and the competition between large metropolises, on the other hand has resulted in introduction of policies that emphasize the roles and status of metropolitan areas in their national urban system. Therefore, the accelerated expansion and the management system of these metropolitan areas need a special attention. The main objective of this study is to analyze the formation, evolution and transformation of Tehran Metropolitan Region. To achieve this objective, the concept of metropolitanization and its processes have been discussed; theories and models related to the process and stages of growth and expansion of metropolitan areas have been studied. In the section of the paper, the formation process and the evolution of spatial organization of metropolitan regions has been discussed. Suburbanization, the process of changes in urbanization and the formation of the metropolitan regions and also the conclusion are presented at the latter parts of the paper. The present study shows that the formation, evolution and transformation of metropolitan regions are an outcome of simultaneous interaction of two effective processes named concentration and de-concentration. These two processes have led to a dynamic organization of the metropolises and metropolitan regions that can be named Continuity and Discontinuity. In the concentration process, all high-order and global functions and services have basically concentrated in central business districts of the metropolitan areas. In contrast, according to the de-concentration process, a given part of activities and their related services and population will move into the other urban centers of the metropolitan region. In fact the metropolitanization phenomenon is a result of the processes that have evolved during the evolution and transformation period. These metropolitan regions in the process of expansion and concentration, by increasing the agglomeration costs push some of their activities and functions to surrounding areas and a result create large fringe areas. In this process the search for housing and employment opportunities in these fringe areas are one of the most important factors in the formation and expansion of these metropolitan areas. The results of this study also shows that the development and expansion of cities and metropolitan areas in the future would follow a definite and identified concept which could be called "de-concentrated concentration".
    Keywords: Metropolitanization, De, concentration., Concentration, Sprawl, Metropolitan regions
  • I. Ebrahimzadeh, Gh Rafiei Pages 123-138
    The population of the world during the last few decades has had rapid and drastical growth. It has been documented that during 1950 to 1990 the urban population has increased three times i.e. from 730 million up to 2.3 billion. It is expected that this rapid growth become double until 2020 out of which 93% will be related to urban population of the developing countries. Thus it is essential that the required programs and planning should be considered for the upcoming over load of urban population. Before the few recent decades, most of Iranian cities have a balanced growth rate; however, in recent decades, urbanization has been preferred to urbanism which is due to a set of attractive factors on the part of cities beside the detractive factors of the villages. This is in turn led city expansion to serious problems. The township of Marvdasht, in its 70 year lifespan, has followed a variety of processes and patterns of physical growth, and has developed in an unbalanced order. Marvdasht city with its natural, industrial, economic, and tourism attractions has been recognized as one of the major pole of population and has had a remarkable growth of physical extension over the recent years. This undesirable growth has been due to the existing population as well as the migrated people to the city which has led to unplanned and poor physical construction of the city and has covered the agricultural land in a large scale. The population evolution of Marvdasht city during the current years is the result of turbulence which is affected by economical and social conditions of the region. The population of the city over the last 50 years 5.4% has grown and its population has increased from 8987 to 124350. From structural point of view the city has been formed in an integrative way out of which most of the areas have been located within the legal part of the city. The total areas of the city have been reported 1712 hectares out of which 60% is recognized as normal condition while the other part constitutes the sprawl extension. In fact, this city has had regular population growth and normal physical extension till 1996, but since then due to lack of proper urban planning and policy making there hasn’t been a parallel growth between physical extension and the increasment of population as a result the physical expansion has been more than the population growth and the city has rapidly expanded. The present pattern of physical expansion of Marvdasht city is mixed and has been affected by linear and checkered forms. This condition caused the city to develop along the axis road of Shiraz –Isfahan and its peripheral streets extend in the form of checkered to other parts of the city. On the other hand, during the recent years, the city authorities to reduce the traffic jam and prevent the linear expansion of city have constructed streets suitable direction of major network of western and eastern parts of the city. Although, this policy has played a role in proper checkered formation with extended structure of the city, the special structure of Marvdasht has been formed in a way that the total axis of industrial, transportation, warehouse holding, agricultural and residential areas have been located in the same neighborhood and this situation invokes a specific spacial- location relationship. The present research is done by comparative-analysis study method, by the help of Shannon’s and Heldren entropy models, to analyze how this township has developed. The results indicate that the township has developed in a concentrated manner up to the year 1997; however, after this time, it developed in an urban sprawl (spiral) way, which latter cases amount is specified using these 2 models. The results analyzed by Heldren model shows that during the1966 to 2008 over 67% of the physical extension of the city related to the population growth and the remaining 33% is related to vertical and sprawl growth of city and its affect has been on the reduction of impure density of the population and incensement of impurity of land percapita of city. Although, according to the current growth pattern of the township which is more of a linear form, and secondly, the increase in the entropy value gap due to the horizontal and spiral growth of the city; the latter in turn influenced by the linear growth pattern, now (2008), the best future pattern was determined as centralized sectorial method for the township. For this to take effect, we should use the intra-textual concentration expansion pattern, and simultaneously, contiguous sectorial pattern along with the system of crossover and diagonal communicative network. If so, we will see a reverse inclination towards urbanism prior to urbanization in the next stage, in order to optimize the future development perspectives, a setting of GIS soft ware’s and related models were employed. Last after the indication of index and layers and merging and intercovering of layer, proper town development site were extracted. It is worth mentioning that for the sake of easy and comfortable connection. In the transportation network of the city, along with intersecting network there must be established across network.
    Keywords: Expansion pattern, Spatial pattern, Optimize, Spatial analyze, Heldren method, Marvdasht., Entropy method