خيارات البحث
النتائج 51 - 60 من 297
Predicting of Urban Growth Pattern Using Logistic Regression Model in Gorgan Area النص الكامل
2015
galdavi, somayeh | mohammadzadeh, marjan | salman mahiny, abdolrassoul | najafi nejad, ali
Modeling urban development patterns is an important technique for understanding complex urban growth processes. In this study, Logistic Regression model was conducted to model urban growth pattern of Gorgan area in North Iran, during the period 1988-2025. To do this, remotely sensed imagery of years 1988, 1998 and 2007 were used to produce land use maps. Also, dependent and independents variables were created to perform urban growth pattern modeling. Then, urban changes were detected during 1988 – 2007 and urban change modelling was achieved using Logistic Regression. After that, future urban grow pattern was predicted. The results indicated that urban areas have increased during study time period. Validation of model results was performed using Pseudo-R2 and ROC values which were more than 0.27and 0.83 respectively. Furthermore, Logistic Regression was applied to predict urban growth patterns for the years of 2016 and 2025. According to the results, appropriate implementations are needed to control land use changes, particularly urban growth, in order to preserve environmental as well as ecological balances of the area. The result could be help the managers to monitor and prevent the unplanned urban development in future. Model’s extracted maps can be used for managing and controlling future urban development.
اظهر المزيد [+] اقل [-]Zoning of Kerman City Vulnerability based on the Principles of Passive Defense النص الكامل
2015
Meimandi Parizi, Sedigheh | Kazeminiya, Abdolreza
Evaluation of these and the threat, much reduces costs in the event of crisis and better life with safety and creates security for citizens. On this basis assessment of cities vulnerability during the battles and compile appropriate ways to reduce vulnerability and damages is essential. Therefore this study sought to assess and vulnerability zoning of Kerman city from the perspective of passive defense with an emphasis on land uses and vital infrastructures and possible threats city as well as three indicators of population density, quality of buildings and empty spaces. To achieve this objective the Delphi method and Analytical Hierarchy Process (AHP) is used. Also using the ArcGIS software and it's analyze, Vulnerability maps were developed. Finally, by combining the zoning map the vulnerability of vital infrastructures and population and physical indicators, the final zoning map vulnerabilities in Kerman is achieved. According to the plan a wide range of domestic and central city are as are vulnerable to high and medium. The most vulnerable areas is Zone 3 and Zone4 is the safest area of Kerman city.
اظهر المزيد [+] اقل [-]Analysis of Spatial Matrix of Regional Development gGap in Markazi Province النص الكامل
2015
faraji mollaie, amin | Aliverdiloo, Hadi
Today, unequal regional development is concerned of many developing countries, such as Iran. Centralization, inequality in the distribution of population, activity and natural and human resources and inequality between the regions are including factors and obstacles to regional development in the country. Study the undeveloped cities and areas to set priorities for planning and eliminate the regional development gap is the first step in the process of decision-making for deprivation deprived areas. The regional comprehensive develop approach need economic, social and environmental factors base on human and environment conditions according to each region. The aim of this study is to identify undeveloped county and analysis to investigate the causes of inequalities (gap) in the Makazi counties, according to 14 indicators of economic, social, health and cultural. The research is based on objective, practical resaerch and method of paper is descriptive-analytical. Collecting method for data (1390) is a library (documentary method). In this study for analysis and ranking of counties is used multi-criteria decision method. Based on the results of the models HURWITZ, Maxi max, Maxi min, ELECTRE and show it on a map in GIS; Arak and Saveh are developed, Sazand, Delijan and Khomain are developing and Tafresh, Mhalat, Zarandiyeh, Ashtian and Komijan are developed counties. In general, in the Markazi province formed two separate regions. One is in the southern part of the province (Markazi) and the other in the northern part of the province of Arak (Saveh).
اظهر المزيد [+] اقل [-]Investigating on strategies of decentralization of Iran – Tehran before the revolution so far النص الكامل
2014
Yasouri, Majid | Hatami Nejad, Hossein | Asadzadeh, Hanieh
Decentralization is the strategy which democratizes of the political system and accelerating to achieve sustainable development, which currently has made the executive government circles become a hot issue. Despite the focused concentration of power and decision-making at the center or top-level officials, decentralization make this possibility to deal with low levels issues and problems of they own directly. Thus, this paper uses the method of descriptive - analytic and with a library collection - documents to review tackles decentralization and define the decentralization policy in Iran before and after the revolution program. Evaluation results show that in spite of decentralization policyIn most cases, development programs, unfortunately, these programs have not been successful and convergence has intensified in Tehran. Reality still shows the focus of activities, services and decision-making centers in Tehran. So the solution is to reduce the concentration of political power - administrative and decision-making and management of the local administration and management of provincial to provide the main way to deal with the approach of decentralization and reform of the governance structure and the reduced concentration of Tehran and the development of developing countries, decentralization
اظهر المزيد [+] اقل [-]The Evaluation and Revising of urban land use from the Point of View of social justice. (Case Study : Kashan) النص الكامل
2014
Poorahmad, Ahmad | Hataminejad, Hosein | Ziari, Keramatallah | Farajisabokbar, Hasanali | Vafaii, Aboozar
The appropriate locate of uses and the justice of in Spatial distribution is very significant in planning the urban land use. The high increase in physical and population development of city, the shortage of services uses and lack of equity to allocate the sorts of land uses in various areas in Kashan, cause the confusion in urban land use and endanger the city sustainable development. However , recognizing and revising each one of the city uses to achieve the appropriate criteria and the principles of planning in city sustainable development are the most important activities in this field. The method to the research is descriptive -analytic, which has engaged in assessing and evaluating the quality and quantity of urban uses in Kashan, by considering two significant and effective standards in land use (including capacity and social justice)and putting GIS software into operation in the framework of entropy standard model and the average of nearest neighbor and per capita standard. The results of the research indicate that uses do not have appropriate Spatial and locative distribution, so that analyzing them with the capacity indexes and social justice, indicates the quality and quantity commotion in uses of tenfold areas in Kashan.
اظهر المزيد [+] اقل [-]Modeling unused lands and agricultural lands changes into built areas using CLUE-S model (Case Study: Esfahan 14'th region) النص الكامل
2014
SHAHABIAN, POOYAN | Tarhani, Hossein | Koohi Habibi, Nazanin
These days because of study process changes of land use into urban use, play an important role in long-term decision and planning, predicting process of land use changes and it's modeling with specific methods to manage and control of urban expansion is necessary. In the meantime one of the modeling methods of land use changes is Clue-s model. This model is used recently in urban studies, because of it's dynamic nature, ability to combine with other tools, ability to improve the model and accessibility of essential data. At the first step the articles purpose would be the explanation in ways and amounts of unused and agricultural lands conversion into built areas within the Esfahan 14'th region, and the next step would be future patterns modeling of these changes till 1405s vision with Clue-s. The theoretical principle of this article have been collected with documentary method and quantitative and comparative method have been used to analyses the topic. At first, effective factors of land use changes have been prepared and then to explain the relationship between changeable factors and independent factors, causal analysis Regration Logistic have been used within SPSS. T
اظهر المزيد [+] اقل [-]The Evaluating of Land Use Suitability by the Method of Ecological Potential in the Ardebil Province toward Land use Planning النص الكامل
2013
Hataminejad, Hossein | Rajaei, Seyed Abbas | Salarvandian, Fatemeh | Teimouri, Iraj
One of the basic and important fundament of sustainable development is Land use planning and use of appropriated with environmental characteristic and use correct of natural sources in the region and country. Ardabil province is one of the regions that its land use in some of its places is not appropriated with ecological potential, especially in the Lands which they are under cultivation. Therefore, this article have intend to analogy of land use now with ecological potential in the province. To prepare the map of land use, utilized the ETM and ASTER image sensor 2002 and so used from information layers in the linked organizations and ground survey. Analogy of ecological potential in the province is done in the GIS and according to method of Makhduom of course with slightly changes. We compared the ecological potential with land use of the province by overlying of different layers. The maps of region’s ecological potential were prepared with overlying of different layers by combine code in GIS. The Results show there is disagreement in the Dry farming areas with ecological potential. In other words, that is 37% fields of dry farming and 6.7% cultivate in the country of Ardabil not agreement with ecological potential.
اظهر المزيد [+] اقل [-]Codification of Strategic plan of Tourism Development in Rural Tourism Sample Areas Case Study: The Tourism Sample Village of Hajij in Paveh النص الكامل
2013
Hajinejad, Ali | Rahimi, Dana | Taghizadeh, Zahra
Nowadays, tourism development in rural capable tourism sample areas is one of the ways to save the villages from poverty, immigration, social and economical problems. So, the present study identified the environmental potential of the tourism sample area of Hajij Village through using a set of internal factors (strengths and weaknesses) and the external factors (opportunities and threats) and then, codified the tourism strategic plan in this area. Accordingly, the present study was an applied-developmental research with descriptive-analytic methodology. The data from questionnaires and field studies were survived in order to determine the four dimensions of SWOT technique. The research had a simple random sampling including tourism experts and scholars in the province. The findings of the study showed that Hajij Village had 11 strengths, 11 weaknesses, 12 opportunities, and 6 threats, which according to priority of these factors, T2, W3, O2, and S4 had the most scores. In addition, WO and SO strategies were located in the first and second priority for tourism planning. This assessment leaded to codifying of tourism development program of Hajij Village, which could help the improvement of tourism status in the tourism sample area of Hajij.
اظهر المزيد [+] اقل [-]Landfill Site Selection with Regional and Local Screening Method in East of Guilan Province النص الكامل
2013
Omidikhah Deylami, Majid | Monavari, Masuod | Omrani, Ghasem Ali
This study conducted to locate the landfill in the range of studies, in view of the most recent guidelines Environment Protection Organization of Iran as to the citation Article 12 of the law and article 23 executive bylaws Waste management In order to Reducing the damaging effects of environmental Activities, locations and Utilities Related with the Processing and disposal Ordinary wastes, Including all the places of burial and recycling Has been prepared. Using the screening regional method and GIS, the Legal-restricted areas as well as the fit regions for waste disposal at the regional scale reviewed and was specified. Then, fit regions in the local scale with regard the important parameters in this method and the weight of them have been Priorities. Three main natural conditions، land-use and economic factors was interference in this method. Then, based on the population growth rate and the amount of waste produced in a horizon of 20 years the area of land required for landfill in the Study area specified and Lands prone with an area of less than the amount determined is removed from the map of merit and was provision the final suitability maps include appropriate land-landfill by taking all the conditions and criteria of the environment protection organization of Iran was determined prone for landfill the 2770.7 hectares at regional scales and 2105.6 hectares of land at the local scale of the whole range of Studies.
اظهر المزيد [+] اقل [-]Determination and Assessment the sustainability criteria and indices in Taleghan Catchment- Zeidasht1 النص الكامل
2013
Asadi Nilvan, Omid | Nazari Samani, Ali Akbar | Mohseni Sarav, Mohsen | Zahedi Amiri, Ghavam Aldin
Sustained development is achieved an overlapping is created between ecological, economical and social classes. The purpose of this research is to determine and measure the sustainability criteria and indices. An ecological approach has used in order to assess sustainability in watershed of Zeidasht1 to maintain a balance between three economical, social and ecosystem categories. Selected variables were obtained using common assessment and their value. In order to assess sustainability, watershed and range management projects monitoring and evaluation monitoring provided by president strategically supervising planning assistant and range and watershed management, forest organization(watershed management department, coordination and planning department) for Iran. As a whole, in rangeland ecological section, three criteria, nine indices and fourteen variables were evaluated. Final score for ecological one was 45 fall in to in moderate class and final score dedicated to social and economical issues about 32 that number of 2 is obtained in respect to 16 selective variables that also it categorized into moderate class. Eventually using matrices, score estimation and watershed validation table, watershed sustainability is determined. In respect to total Zeidasht watershed score, this watershed is categorized in too poor sustainability class.
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