Land use Planning
Nafise faghih sabzevari; azita farashi
Abstract
Today, climate change and habitat loss are the biggest threats to wildlife. Therefore, accurate information on ecology and habitat requirements conserve species from these changes and identifying the most important factors to attract species and the development of habitat suitability maps can be considered ...
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Today, climate change and habitat loss are the biggest threats to wildlife. Therefore, accurate information on ecology and habitat requirements conserve species from these changes and identifying the most important factors to attract species and the development of habitat suitability maps can be considered a species protection process. After leopards and cheetahs, Caracal is the third biggest member of the cat family (Felidae) in Iran that has a key role in controlling of rodent populations and its habitat is mostly in arid areas. Accordingly, the aim of this study is to consider the effects of climate change on Caracal habitats and the distribution of the species under two climate scenarios RCP2.6 and RCP8.5 in the period of 2061 to 2080 in Iran by using the maximum entropy method. In this study, four groups of environmental variables are used: climat, topography, land cover, and land use. The results showed that distance from the conservation network, distance from sand dunes, and distance from dense forest areas had the greatest impact on the selection of suitable habitat for the Caracal at the present time and for the future time, the variables of mean temperature of warmest quarter and elevation had the highest importance on the distribution of Caracal. In addition, the study of Caracal's habitat suitability maps revealed that these species currently occupy only 13.2% of Iran, which have only 48.2% overlap with the current conservation network. While, in the future, the desired habitat rate of the species under the scenarios of RCP2.6 and RCP8.5 will be reached 30.9 and 27.4, respectively, and the amount of overlap with the current protected network will be reduced to about 66%, and the amount of overlap will have arrived at 17.8%.
Land use Planning
Mohsen Aghayari Hir; masoumeh alirezaei; Ali Zarei
Abstract
Today employment is one of the most important indicators of development in the countries. The analysis of the employment process and its structure across the country and its various areas requires accurate knowledge of the potentialities and their composition in the areas , to create balanced planning ...
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Today employment is one of the most important indicators of development in the countries. The analysis of the employment process and its structure across the country and its various areas requires accurate knowledge of the potentialities and their composition in the areas , to create balanced planning and employment in each area. This research is descriptive-analytic and aims to analyze the spatial distribution pattern of public and private sector employees in Iranian Townships. The statistical population consists of 397 Township all over of Iran, whose statistics and data were from the general census of population and housing in 2016. In this regard, after collecting the data and theoretical studies of public and private sector employees, the spatial automation correlation model based on the Moran's I index and Spatial Statistics Tools used for spatial and Hot Spot Analysis with Rending. The results of data analysis indicate that the distribution patterns of public and private sector employees in the Iranian Townships is clustered (was not distributed uniformly in the different Townships). Also, according to the analysis of Hot Spots, the distribution of employees in the public and private sectors was observed, with the highest in Tehran and centralized in a radius of approximately 300 km from it (although Tehran itself is confined with a 95% confidence level), and the rest of the Townships have more balanced distributions.
Land use Planning
Hasan Masoudi; Davood Amini; Hamed Ebrahimi
Abstract
Governments and societies have historically divided their territories into different regions and areas to better manage their land and preserve the territorial integrity of their country. This practice is now related to the concept of spatial planning, particularly "Territorial Zoning". Territorial ...
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Governments and societies have historically divided their territories into different regions and areas to better manage their land and preserve the territorial integrity of their country. This practice is now related to the concept of spatial planning, particularly "Territorial Zoning". Territorial Zoning aims to achieve cohesive management and the National Division of Labor, as well as utilize the potential of different regions to reduce territorial inequalities and imbalances. In Iran, Territorial Zoning has been implemented by various organizations over the past decades, with the most recent division into nine major regions in 2017. In this descriptive-analytical research, the extensive literature on Spatial planning and Territorial Zoning plans in Iran is reviewed, providing a comprehensive history of these programs. The research then critiques and analyzes these programs. The most important criteria influencing land zoning are identified and prioritized using the Analytic Hierarchy Process (AHP) method and the opinions of experts. According to the findings, the most important criteria for Territorial Zoning are "cultural-social", "defense-military", and "political-administrative". The sub-criteria of "environmental issues", "level of regional development", "population distribution", "government pattern and type", and "threats and security issues" are also deemed important. Based on the findings and results of the research, the authors propose their own Territorial Zoning plan in the form of ten major regions. This research contributes to the understanding of the history and current state of territorial Zoning in Iran and provides valuable insights for policymakers and practitioners in the field of Territorial Zoning and spatial planning.
Land use Planning
Azra Moshtagheh Mehr; Asadollah Hejazi; Fariba Karami
Abstract
In the present research, the evaluation of land use changes in Mahabad county in a twenty-year period from 2000 to 2020 and the prediction of its possible trends until 2040 have been discussed. In this research, the images of ETM and OLI sensors of Landsat satellite in three years of 2000, 2010 and 2020 ...
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In the present research, the evaluation of land use changes in Mahabad county in a twenty-year period from 2000 to 2020 and the prediction of its possible trends until 2040 have been discussed. In this research, the images of ETM and OLI sensors of Landsat satellite in three years of 2000, 2010 and 2020 and the supervised classification have been used to detect the changes that have occurred. In addition, in order to simulate land use changes, Markov model and cellular automata have been used. Based on our results, the highest trend of increase was related to the built-up lands and the highest trend of decrease was related to the water bodies of the region. In other words, the area of built-up lands increased from 2367.67 hectares to 71006.08 hectares. Besides, the area of water bodies has reached from 9266.63 hectares to 1164.28 hectares, respectively. In addition, based on the results of the Markov model, it is expected that the trend of land use changes will decrease the area of agricultural lands by 1473.1 hectares, orchards and forests by 810.11 hectares, pasture land by 16455.4 hectares and water bodies by 545.69 hectares. On the other hand, these changes will be accompanied by an increase in the area of barren lands by 11831.72 hectares and built-up lands by 7448.42 hectares. Therefore, the possible trend of changes indicates an increase in the level of barren lands and built-up lands and a decrease in other land uses. The results of the present research highlighted the need to pay attention to the challenge of land use change in Mahabad county and can provide a proper understanding of the dimensions, trends and patterns of land use in the region to officials, researchers and local people.
Land use Planning
Iraj Jabbari; Majid Ahmadi-Molaverdi; Nafise Jami Alahmadi; Ali Rezapoor; Mohammad Mohammadnejad
Abstract
With the development of industries and the expansion of human activities and the production of hazardous wastes, it is necessary to dispose of them in a suitable place that has the least threat to human life, and requires basic considerations about the site's vulnerability to natural and human hazards, ...
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With the development of industries and the expansion of human activities and the production of hazardous wastes, it is necessary to dispose of them in a suitable place that has the least threat to human life, and requires basic considerations about the site's vulnerability to natural and human hazards, ease of insulation and the risk of environmental pollution. Examining this issue seems very simple, which is why at the level of executive projects, each specialist considers himself entitled to location projects; unaware that each environment has certain complexities, the neglect of which may lead to great human and environmental waste. Accordingly, in this study, we first tried to improve the criteria for Iran according to geographical conditions by studying valid international standards and guidelines regarding the location of landfills for special waste. Second, with a geographical approach to the subject, by combining layers, the accuracy of the desired factors will increase, and by combining 46 maps or information layers, 35 desired factors will be selected with high accuracy. Third, by understanding that questionnaire-based methods such as hierarchical analysis (AHP) can not achieve reliable results in the evaluation of layers, new corrective methods can be proposed that lead to satisfactory results. Fourth, a geographical understanding of the phenomena can help assess the validity of the results in the final stages and, depending on its specialization, be effective in a particular type of site selection. We need 70 hectares In this study . Land location including the area that is not cause damage to environment elements and is close to industrial centers and roads but away from residential areas, airports and tourist areas was identified only in four places in the west of the province and on or near the Iranian-Iraqi border. Geomorphological studies also give proitey to one of them .
Land use Planning
Rahimeh Rostami; Ali Mohammad Khorshiddoust; Maedeh Bakuoyi
Abstract
IntroductionDrying up of Urmia Lake has great influence on the surrounding environment. The salinity of the soil on the edge of the lake, the increase of salt particles and the reduction of the usual agriculture in this area are among the effects of this drought. With proper planning and extensive studies, ...
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IntroductionDrying up of Urmia Lake has great influence on the surrounding environment. The salinity of the soil on the edge of the lake, the increase of salt particles and the reduction of the usual agriculture in this area are among the effects of this drought. With proper planning and extensive studies, it is possible to turn the created deficiencies into opportunities and take maximum advantage of them. One of the parameters that can be checked using satellite data is soil salinity. Soil salinity is the accumulation of dissolved salts in the form of electrical conductivity, and it can be measured. In this study, the changes in land use and vegetation from 2000 to 2016 have been investigated using Landsat 5 and 8 images. The analysis of the images has been done using object-oriented methods, and the soil salinity has been calculated using salinity indices and during the studied years. Soil salinity index as well as other indices such as plant indices has been used in the classification and examination of changes. Land use changes were obtained by object-oriented method in Ecognation software and calculations related to the amount of changes is done using Arc map and Idrisi software. The study was carried out on 4 periods of 2000, 2006, 2010 and 2016. The images related to each year are first classified into 9 classes of water, salt marsh, new salt, pastures and weak pastures, city, agriculture, barren land and garden by object-oriented method. After classification, the amount of changes during these years has been obtained.Data and methodsMost of the study area is located in pass 168 and row 34, and only parts of the lake in the northwestern part of the study area are outside this image, so to get the desired result, we have to mosaic the images of passes 168 and 169 with rows 33 and 34. Processing is divided into three stages: pre-processing, processing and post-processing.Segmentation is the first step in processing images in object-oriented methods. Segmentation is the integration of objects from small to large based on the parameters of color, shape, density, smoothness and scale. In this study for processing have used from ecognation Software. The method used to classify images is the thresholding method. In order to improve the classification method, salinity indices and vegetation indices have used in this study.ConclusionThe amount of water in the lake has decreased drastically between 2000 and 2016, and it has decreased from 54.39% range to 29.26%. By examining the changes, it can be seen that other land uses have been reduced, and salt marshes have been added. The comparison of land uses from 2000 to 2016 shows that the amount of salt marshes has increased from 12.37% in 2000 to 13.84% in 2006, 24.7% in 2010 and 33.25% in 2016. Studies show that the intensity of changes in the amount of water and salinity between the years 2006 to 2010 and 2010 to 2016 is much more intense than the period 2000 to 2006. It seems that before 2006, unprincipled exploitation of lake water and underground water was less than after 2006, or the environment had the ability to recover the amount of water harvested. As it can be seen from the map of 2000, the amount of new or wet salt around the lake is very small, which has increased with the decrease of the lake's water. The survey of gardens in the studied area shows that the area occupied by gardens has increased from 2000 to 2010, but the results of changes in use from 2010 to 2016 show that the area of gardens has almost halved (1099 pixels from the image in 2010 And 667 pixels in 2016) that one of the factors of this reduction can be soil salinity.Another thing that can be seen by studying the maps is the distribution of new salt in the areas far away from the lake, which at first was only attached to the water at the edge, but over time, when the amount of this type of salt increased, due to the occurrence of salt storms, it was spread to further areas. If measures are not taken to control this amount of salt and soil salinity that has occurred after that and will increase over time, we will witness more severe problems in the region.
Land use Planning
Rahimeh Rostami; Ali Mohammadkhorshidduost
Abstract
Introduction One of the physical factors in the development of Maragheh is the change of utilities and their conversion into residential use, which in turn have a direct impact on the process of physical development. The city of Maragheh is one of the most important cities in East Azerbaijan province, ...
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Introduction One of the physical factors in the development of Maragheh is the change of utilities and their conversion into residential use, which in turn have a direct impact on the process of physical development. The city of Maragheh is one of the most important cities in East Azerbaijan province, which has no exception to the rule of physical development. In this research, the characteristics of the city development process are examined physically. Statistics show the growing population in the city of Maragheh during the years 1966 to 2011. Understanding the factors affecting the physical expansion and development of cities helps understand urban growth and development trends. The study clarifies the factors that cause horizontal and physical growth of cities and, conversely, the repulsive factor of other parts of the city that are left behind by physical growth for any reason, and this explains the need for this research. The causes of urban growth are exactly the same as the origins of urban sprawl. In many cases, no distinction can be made between urban growth and urban sprawl however, it is important to have a clear understanding of the difference between urban sprawl and urban growth. The most imperative problems that have arisen from the uncontrolled growth of city due to physical development are the excessive use of land, the lack of sufficient urban facilities and equipment, the disconnection of the suburbs and thus adding to the urban problems. The purpose of this study is to study environmental and physical factors and their impact on the physical growth and development of Maragheh city and provide the best place for future development of the city. Data and Method In the present study, the criteria and sub-criteria and the relationships between them were first defined by the ANP method using Super Design software, and after obtaining the weight for each criterion and sub-criterion, the sub-criteria were first fuzzy and according to the weight of each of them the main criterion was obtained from the sum of these sub-criteria. Finally, the three main criteria of human, environmental and topographic parameters, considering their weight, have provided the main layer of the possibility of physical development of the city. Choosing a suitable method and approach for modeling a system depends entirely on the complexity of that system and complexity is inversely related to the amount of knowledge and understanding of our system. Fuzzy systems can be well used to model two main types of uncertainty in the phenomena. The first type is uncertainty due to the lack of knowledge and human tools in recognizing the complexities of a phenomenon. Results and Discussion Using the three main layers obtained for topographic, environmental and human criteria and according to the weight of each, the final location map of physical development of Maragheh city was obtained. The development map of Maragheh shows that the south-eastern parts are very unsuitable for physical development, while the north-eastern, north-western and south-western parts are suitable for development in terms of three environmental, human and topographic features. Environmental factors seem to have the greatest impact on the development and expansion of cities. According to our findings, and depicting the map of the city development over different years, the final map was obtained for the development of this city which is almost in line with the expansion of the city during the years 1996 to 2006 and 1976 to 1986. Conclusion With the arrival of the third wave of industrialization in Third World countries since the beginning of the twentieth century, production and income in cities, followed by increased demand for urban services and consequently urbanization has expanded. One of the effects of physical growth is related to the expansion of the outskirts of cities beyond the administrative boundaries of any city. Such urban development goes to areas outside the administrative boundaries and changes in land uses. The city of Maragheh has many limitations in terms of physical expansion due to the gardens around the city. In order to prevent the destruction of gardens and agricultural lands as well as physical expansion in line with natural and human criteria, extensive studies should be conducted. Information and data were applied in this study for the analysis of these parameters.The city of Maragheh needs to expand physically following the increase in population naturally and its increasing expansion goes on due to uncontrolled urban migration. In the present study, three main criteria of human, environmental and topography have been used. From the topographic criteria, the south-western parts are the most suitable places and the north-eastern parts of the city are the most unsuitable parts. In terms of environmental criteria, the western and south-western parts and to some extent parts of the north are suitable for development. Due to being a garden city, it is limited to gardens from the surroundings, which makes it difficult to expand from a human and environmental standards point of view. By combining three layers of environment, human and topography, the best place for the development of this city according to the final map was prepared for the optimal location of the future development the city based on ANP Fuzzy method by which it is more suitable in the west and north-west than in the south and south-west.Paying attention to horizontal expansion preserves the traditional texture of the city and single-storey buildings and prevents its vertical expansion. Although vertical expansion has advantages over horizontal spreading out, the current conditions of Maragheh city and its size, as well as its traditional texture and culture, make the need for horizontal expansion more tangible than vertical expansion.By using the right development model, both the traditional construction of the city can be preserved and the problems caused by sporadic development can be reduced, provided that the horizontal development goes in the direction that environmental and human conditions demand.
Land use Planning
Fariba Karami; Abolfazl Ghanbari; davod hasandost Farhani
Abstract
Introduction Passive defense refers to the set of actions that does not require application of war wares and with using it, we can prevent vital installations damage, sensitive military and nonmilitary centers, and human loses and to decrease the extent of damage or to minimize them. Literally, the ...
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Introduction Passive defense refers to the set of actions that does not require application of war wares and with using it, we can prevent vital installations damage, sensitive military and nonmilitary centers, and human loses and to decrease the extent of damage or to minimize them. Literally, the word defense is a combination of two terms in Persian language: “pad” and “afand”. In Persian literature, “pad” is a prefix meaning ant, counter, rear, and pursuit. “Afand” means war, fght, batle, and hostlityPassive defense is one of the basic measures in crisis management. It is possible that the passive defense decreases the losses as far as possible. In general It can be mentioned that passive defense includes a collection of unarmed actions which causes increasing of suppression, decreasing of vulnerability, continuity of vital activities , promotion of national stability and facility of crisis management against the threats and the enemy`s military actions. Passive defense, in addition to reducing damage from human-made hazards, is also used to reduce risks to natural hazards. Therefore, passive defense is not about war and peace but a preparation to deal with various natural disaster and abnormal events. Passive defense plans are developed before crisis, at the tme of peace, and include design for all steps of crisis management. Basic defnitons of passive defense may unwitngly focus one’s atenton on politcal and military defense issues, rather than events and crises caused by natural forces; however, the truth is that, in additon to reducing damage caused by human-made threats, passive defense measures in residential areas are also useful in reducing risks in face of natural hazard. An important issue in passive defense is selection of place. Site selection can be viewed as a Multiple Criteria Decision-Making or Multiple Attributes Decision-Making (MCDM/MADM) problems. The MCDM or MADM is the approach dealing with the ranking and selection of one or more sites from the alternatives. MCDM methods have been developed to assist decision makers in either ranking a known set of alternatives for a problem or making a choice among this set while considering the conflicting criteria. In recent years with the development of passive defense in the world, extensive studies were carried out in this area. In Iran, because of strategic and political importance of the Middle East region and due to its natural location and the confrontation with various types of natural disasters in Iran, studies on passive defense are necessary.The purpose of this research is to locate sites suitable for establishing sensitive and vital centers in Bojnourd Township. North Khorasan Province is one of the border provinces of Iran. Bojnourd township is a provincial capital because of the establishment of management and command centers, bordered by Turkmenistan and located on the international route of sensitive arteries and basic ways of the country. On the other hand, Bojnurd is geologically located in Kopet Dagh Zone. In this zone there are active and important faults. Methods In order to carry out the study, an applied research method and a ombinaton of documentary, descriptve, analytcal and case study methods were used.In this study, the research method is descriptive-analytic, and a FANP compilation model was used. Data was collected based on library studies and documentation reviews and the distribution of the questionnaire among experts .In this research, The natural and human criteria of the research, including the sub criteria of slope, direction of slope, elevation, vegetation, protected areas, lithology, distance from the fault, distance from the river, distance from industry, distance from the border, distance from the city, distance from the village, distance from the high power lines and distance from the roads were chosen. The questionnaire data was processed using the Super Decision software, based on the ANP model. Then, the coefficient of significance of each factor was multiplied by Arc GIS software with the desired layer. Ultimately, the fuzzy layers were fuzzy and maps were fused in the software. Results and Discussion The results of this study showed that the most suitable zones are the middle belt, east and south east of Bojnourd township. Unsuitable areas for the establishment of critical sites are located in the north, southwest and around the city of Bojnourd, with passive defense approach. Conclusion Based on the results of this zoning, Bojnourd city management centers such as the governor's office, the Radio and Television Organization, military centers, the main water pumping station, high voltage power plant and support centers such as wheat silos, industrial towns, etc. are not located in a suitable place.
