Showing 45 results for Form
Hamed Heidari, Darush Yarahmadi, Hamid Mirhashemi,
Volume 24, Issue 75 (12-2024)
Abstract
Human interventions in natural areas as a change in land use have led to a domino effect of anomalies and then environmental hazards. These extensive and cumulative changes in land cover and land use have manifested themselves in the form of anomalies such as the formation of severe runoff, soil erosion, the spread of desertification, and salinization of the soil. The main purpose of this study is to reveal the temperature inductions of the land cover structure of Lorestan province and to analyze the effect of land use changes on the temperature structure of the province. In this regard, the data of land cover classes of MCD12Q2 composite product and ground temperature of MOD11A2 product of MODIS sensor were used. Also, in order to detect the temperature inductions of each land cover during the hot and cold seasons, cross-analysis matrix (CTM) technique was used. The results showed that in general in Lorestan province 5 cover classes including: forest lands, pastures, agricultural lands, constructed lands and barren lands could be detected. The results of cross-matrix analysis showed that in hot and cold seasons, forest cover (IGBP code 5) with a temperature of 48 ° C and urban and residential land cover (IGBP code 13) with a temperature of 16 ° C as the hottest land use, respectively. They count. In addition, it was observed that the thermal inductions of land cover in the warm season are minimized and there is no significant difference between the temperature structure of land cover classes; But in the cold season, the thermal impulses of land cover are more pronounced. The results of analysis of variance test showed that in the cold period of the year, unlike the warm period of the year, different land cover classes; Significantly (Sig = 0.026) has created different thermal impressions in the province. Scheffe's post hoc analysis indicated that this was the difference between rangeland cover classes and billet up cover.
Mohammad Ali Jamalizadeh, Abbas Masoudi,
Volume 25, Issue 76 (3-2025)
Abstract
Ancient cities have always possessed inherent distinctions from contemporary cities, which are evident in their physical structures and overall layouts, allowing them to be easily differentiated from their modern counterparts. These distinctions, influenced by economic, political, cultural, and social conditions, have resulted in varying degrees of change in the urban structure and have given rise to two types of urban growth. Organic growth is characterized by a continuous and coherent expansion that prioritizes form in relation to function, in stark contrast to the fragmented and discrete nature of global cities in the modern era. This study seeks to address whether it is feasible to apply the characteristics and developmental patterns of ancient cities in today's world by examining the evolution of urban form throughout history up to the present day. Alternatively, can a favorable outcome be achieved by integrating certain characteristics of ancient cities into contemporary urban environments? Based on this objective, the study explores the evolution of urban form across three historical periods - pre-Islamic, post-Islamic, and the modern era - with a particular focus on the establishment of governmental centers in the central desert of Iran. The comparative method of induction is employed to discuss the subject matter in line with the research assumptions. The findings indicate that the first and second hypotheses have yielded more significant results in a greater number of unsuccessful experiments. Conversely, the third hypothesis has been more successful in a wider range of experiments with diverse outcomes. Moreover, considering the success rate of 0.100 and the absence of unsuccessful experiences for the Kerman experiment, it can be argued that this hypothesis is relatively superior and preferable for assessing the success rate of related projects.
- Farhad Judi, - Rahim Sarwar, - Sayeda Sediqeh Hasani Mehr,
Volume 25, Issue 77 (6-2025)
Abstract
The effectiveness of urban management plays a crucial role in the sustainable development of cities from various perspectives. A significant and influential dimension of urban management is the quality of life experienced by citizens across different neighborhoods. The enhancement of quality of life through management performance can be achieved via citizen participation, service provision, and transparency, among other factors. Consequently, this study aims to assess the impact of urban management performance on the quality of life in informal settlements within Miandoab City. The research employed a descriptive-analytical methodology, utilizing field data collected through a structured questionnaire. The validity of the questionnaire was established, and its reliability was determined using Cronbach's alpha, which yielded a value greater than 0.79. The study's statistical population encompassed 11,545 residents living in 10 informal settlements in Miandoab City. Utilizing Cochran's formula, a sample size of 313 was determined. The results indicated that the urban management index was statistically significant, with a p-value of 0.000, which is less than the threshold of 0.05. The average difference was calculated at -1.403, and the T-statistic was -54.8568, confirming that the urban management index for informal settlements in Miandoab is deficient. Furthermore, the regression model demonstrated that the urban management index, comprising five variables, has a coefficient of 0.901, indicating a 90% efficacy in enhancing the quality of life in informal settlements. Among the variables, the participation variable, with a coefficient of 0.231, accounted for 23% of the variation in the quality of life in neighborhoods. The urban facilities and infrastructure variable predicted 21% of the quality of life, while the financing, provision of municipal services, and environmental cleanliness and hygiene variables contributed 16%, 18%, and 11%, respectively, to the improvement of quality of life in informal neighborhoods.
Esmat Khan Mohammadi, Rahim Sarvar, Alireza Estalaji,
Volume 26, Issue 80 (3-2026)
Abstract
Today, the accelerating trend of urbanization, the lack of guidance and urban management, national and regional inequalities, and differences in the socio-economic base of individuals have led to the growth and expansion of informal housing. Due to this situation, informal housing has been expanding in Tehran's metropolitan area. The present study seeks to find key factors affecting informal housing in the study area and also to determine the relationships between criteria through structural-interpretive modeling (ISM). Are; Which is applied in terms of the nature of the application and in terms of the combined method (quantitative and qualitative) and in terms of the inductive research approach In this method, a questionnaire tool was used and in order to analyze the relationships and present their structural model, the interpretive structural modeling method was used, The results of MICMAC analysis and the classification of key factors in the four matrix clusters It shows that the factors of economic growth, redistributive policies, decentralization and transfer of authority, regional equilibrium policies, revision of development and sanctions laws and regulations and its effects are in the fourth cluster,which are in fact variables of research. In fact, key variables are research, and the only factor in housing policies is the cluster of link variables, which will guide other factors, and change will affect the entire system.
Ruhollah Namaki, Akbar Abdollahzadeh Tarf, Hassan Sattari Sarbangholi,
Volume 26, Issue 80 (3-2026)
Abstract
Air pollution and adverse effects of pollution caused by the combustion of fossil fuels in urban settlements are among the important environmental issues of metropolises that need to pay attention to ways to reduce air pollution in cities. Global experience has shown that urban form indicators are one of the most important factors affecting air pollution and energy consumption in the city. Therefore, paying attention to the form of the city plays an important role in the long-term perspective of cities for better air quality. The present study is applied in terms of purpose and descriptive-analytical in terms of method. In order to collect the required data and information, library and documentary methods have been used. To analyze the data and answer the research questions, the Moran statistical technique was used in the GIS software environment. The results of this study showed that the air pollution situation in Tabriz in terms of air pollutants, ie sulfur dioxide, nitrogen dioxide, carbon monoxide in the second half of the year is more than the first half of the year, so that among the air monitoring stations The field had the highest number of air pollution. Also, the results of the study of the effect of urban form and land use pattern on air pollution showed that urban form and land use are effective on air pollution.