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Planning Approach to Land Use Change Modeling Using Satellite Images Several Times Behbahan City Полный текст
2015
Pourkhabbaz, Hamid Reza | Mohammadyari, Fatemeh | Aghdar, Hossein | Tavakoly, Morteza
Study of changes in the past and the destruction of resources and the feasibility and expected changes in the coming years can be planning and optimal use of resources and controlling non-fundamental changes in the future is an important step. The present study aimed to model the Behbahan using LCM city land use changes and Markov chain was used. In this regard, land use change detection using satellite images Landsat, ASTER and ETM+ (Image 2000) and OLI (Image 2014) was performed. Using logistic regression modeling and 6 variable power transmission, digital elevation models, slope, away from residential areas, the distance of agricultural, away from the road map and Evidence Likelihood was performed. For maps of the distance from residential areas, agricultural lands and away from the road distance analysis Euclidean distance and to evaluate the correlation between the independent variables and the dependent variable Cramer's correlation coefficient was used. The ROC indicator used to assess the validity of the model. Comparison of modeled area map with the map of 2014 shows the residential areas and agricultural land continues to be a growing trend will continue. As the residential area of 3157 hectares, 4180 hectares in 2014 to 15030 hectares to 20778 hectares of agricultural land increased. But the destruction of rangeland has not only not improved, but the intensity is much higher than the last.
Показать больше [+] Меньше [-]Calculation of Ecological Conformity Urban of Development in Gorgan Полный текст
2015
Hajizadeh, Fatemeh | Mirkarimi, Seyed Hamed | Salman Mahiny, AbdolRasoul | Mohammadzadeh, Marjan
Today, with the rapid growth of urban population and as a result, rapid and unbridled urbanization of human societies have been caused some issues. In Gorgan, an increase in level of urban settlements is done regardless to the capabilities and limitations of land and ecological potential of urban development. In this study, it is performed to evaluate and conform to urban development, regard to ecological capability to protect the environmental ability of Grogan. In this case, the multi-criteria assessment approach with weighted linear combination of the GIS is performed to evaluate the ecological capability of Gorgan for conformity to urban development in different years based on the criteria. Then, there is a comparison between final map of capability and current development; moreover, the rate of conformity in different years is calculated. It is illustrated that the ecological conformity had been decrease gradually from 1987 to 2013, which causes hazardous effects on the environment that seems to be still remain for years. Therefore, reduction of the ecological noncompliance should be considered by relevant authorities. The outputs could be used for urban planners to observe the environmental principles to promote existing conditions.
Показать больше [+] Меньше [-]Providing a Methodological Model for the Application of Assumption Based Planningin Regional Development Studies Полный текст
2015
Zali, Nader | Mansouri Birjandi, Sara
The planning literature has passed the prediction, forecasting and exploration of future concepts and has reached to futurology and foresight. Regional development planning is not exempt from this and needs a futuristic approach in order to be used after being planned. Identifying the future uncertainties and the underlying assumptions in the regional development planning by which the long-term plans have been established, is one of the most important main fields in the identification of problems and facing challenges of development documents. Post-planning also deals with the success or failure evaluation of the developed policy and planning in the future time horizon. Assumption Based Planning (ABP) is one of the post-planning methods, which could be used in preparing stable and compatible programs. This research is a combination of documentary and surveying methods in terms of the research type and is analytical and exploratory based on the new methods of futurology science in terms of the research nature which is conducted by a combination of qualitative and quantitative models. Data collection methods and techniques Delphi questionnaire was used and questionnaires are experts in developing and development issues surrounding region During two separate questionnaires have been completed. In this way, the correlation between each strategy uncertainty with mining experts from both questioners (strategies, inventory uncertainty) is calculated. The results show which areas are considered the most vulnerable strategies. Analysis of the results indicate that utilizing the ABP could be implemented in the regional development planning, which helps planners to have a consensus and commitment to the output. Thus, weaknesses and waivers existing in the long-term regional development planning could be identified and reviewed by utilizing the ABP.
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