Journal of Geography and Planning
Year:2010 | Volume:15 | Issue:31|Papers Count:8

This article is an attempt to inspect the compatibility between climate factors and circulation system in Urmia city. The importance of this subject is due to the fact that not only environmental and climate factors can mitigate the social, economic, and living problems but also they play important role in the path of sustainable development in a city. In addition to sightseeing and field studies, this research utilizes the information obtained from the Meteorological Organization through applying the Olgey method. Analysis of the data on existing site indicates that in Urmia city except three months of May, June, and September, in other months, the productivity of solar energy and provision of shade in making safety is invariable. At nights also except four months of May, June, July, and August, in all other months, there is the existence of a cold bioclimatic condition control. The adjustment of results on the relationship between climate factors and communication system of the study area, it has become clear that fabric (organic) texture of the city has developed in relation with the region's climate, but this fact has ignored in the newly built texture because of exceeding and imbalanced development. Therefore, under these conditions to mitigate existing problems, it is necessary that the urban texture should be compact and the design of the streets should be in the north to south directions added to this the environmental and climate consideration in development of new urban spaces.

The aim of present study is to analyze the ICT status and it's role on city planning and management. This study is based on the findings and result of a case study conducted in Najaf Abad city and the data is collected among organizations and citizens of the mentioned city.Data was gathered through library research, questionnaires and related documents. The gathered data was analyze using SPSS. The researchers came up with the following results: - The frequency of using ICT facilities in doing common deeds of city is very low.- ICT centers, facilities and internet serving bases in Najaf Abad did a satisfying job in E-citizen to people.- Regarding E-citizen index and the extract of it' acceptance, individuals were more willing to use this technology.- And finally, the ICT is easily available for managers and individuals to do their affairs usually in person. The study showed that managers tend to do these affairs traditionally, due to structural deficiencies and lack of expertise in using this technology. A number of issues were also suggested to the improvement of this technology in cities.

Many countries are facing with the problems of increasing trend of the air pollutant impacts, which are resulted from pollutant dispersing activities in the atmosphere. Photochemical smog also has the most dangerous destroying impacts in the atmosphere.Through this situation the pollutants spread rapidly under the sunlight, and produce a big variety of dangerous chemical complexes, affecting the environment. We have tried to survey the relation of variables for smog formation in the city through the “Pearson” formula to calculate the integration coefficient.Deductive statistical methods like integration coefficient and linear equilibrium of regression, to were used find the logic relation of the variables like air pollutants, and inversion. Air maps in the contour line of 250, 500 hpa and the statistical duration of (1998-2007) were studied monthly in smoggy days.As a result' the relationship between these pollutants and the process of the smog formation was estimated to be more than 90%, and it increases according to the cold air flows, inversion, and it‘s low height from the earth surface.

By now it is more than four decades from providing and execution of Iran first urban Comprehensive Plans. Evaluation of these plans with experts shows the process of these plans not successful. In this paper the fact that lack of coordination between to be urban planning organizations, the manner of providing and execution, and lack of public participation lead to the ineffectiveness of the plans, relying on literature review and field study and finally the comparing the plan document are discussed.Results of this research show that there is lack of coordination of urban management organizations, style of providing and execution and lack of public participation public in urban plans which are inefficient.

Balanced planning necessitates a harmonious national and regional planning as well as a specific and relevant project for a given region under the whole system of national order. This is particularly even more necessary in the third world countries such as Iran. In Iran the growth of economy based on capitalism, land reform, concentration of social and economic investment in major cities particularly in Tehran metropolis, has brought about several irregularities in the national and regional level. Unbalanced distribution of facilities and various services and their concentration in large urban centers have been the characteristics of this irregularity. In This study the hierarchy of settlement of Hashtrud Township has been examined and analyzed in terms of its demographic functional and developmental planning.Research methodology employed is descriptive-analytical and quantitative models and relevant computer software has been made use. Conducted researches in the township level of Hashtrud suggest that firstly, due to the lack of living facilities such as health and educational and welfare services the population of villages declines steadily and some of its are vacated, and in rural phenomenon of migration occurs area than a large number of ruralareas of Hashtrud township lack the proper spatial order in terms of population distribution. Secondly, the township centre (Hashtrud city) also has been unable to offer optimism services to it hinterland due to the poor financial facilities and technical equipments. This has led to irregularities in the spatial order of the township.

The main objective of this article is studying the freezing phenomenon and its influence on Ardebil township agricultural crop production.Minimum daily temperature data of the Ardebil Meteorology Station (from 1977 up 1998) were used and different statistical methods were applied.Results indicate that the period of freezing tend to untimely fall freezing (towards beginning of fall) and late spring freezing (from beginning of spring to middle of it) and the duration of growth season in often selected years is more than its mean. The coefficient of weak correlation was set up and the untimely and late freezing did not have remarkable influence. The regression coefficient proved that dates of freezing and duration of growth seasons had gradually changes and oscillation. In return for each increasing unit in time unit (year), so that the process line of spring freezing tended to middle of spring and the fall freezing from beginning of fall tended to middle of it and consequently duration of growth season had decreased. The mean of happening time was not fixed, but difference in some days toward its mean had changes and oscillation from year to year.

The purpose of this paper is to investigate Dr. Shakui`s thoughts and opinions through reading his works carefully and to represent a narration of evolution trend in his thought and mind in three specified intellectual periods. The first period (1970-74) is defined with two books,” Philosophy of Geography” and “Urban Geography”.Investigating the works of the above period precisely, demonstrates Dr. Shakui as a commentator of geographical thoughts and schools.Studying the works written in the second period of his intellectualscientific life (1974-1978) –“New Towns”, “A Preface on Tourism Geography”, “Urban Environment” and “Urban Slum Residents”represents a significant and considerable evolution in his opinions and thoughts. In this period Dr. Shakui turns to criticism and analysis of geographical concepts and issues while still emphasizing on explanation. The third period of his scientific activities (1978-2005) including several books and papers starts with writing "Operational Geography and Geographical Schools" and ends with "New Thoughts in Philosophy of Geography" (second volume). In fact in his works of the recent period the first signs of theorizing about geographical issues along with explaining, criticizing and analyzing them are considered.Therefore' Dr. Shakui starts codifying theories while he is still explaining and criticizing.