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Land Cover Change Modeling based on Artificial Neural Networks and transmission potential method in LCM (Case Study: Forests Gilan-e Gharb, Kermanshah Province)
2017
Parma, Rohollah | Maleknia, Rahim | Shataee, Shaban | Naghavi, Hamed
In order to land cover change modeling and detect to possibility of predict the future trend of Land Change modeler (LCM) was used. VNIR Data ASTER Sensor of TERRA satellite with spatial resolution of 15m for three periods 2000, 2007 and 2016 from Gilan-e-Gharb forests of Kermanshah province were analyzed. Land cover maps of years 2000, 2007 and 2016 four categories: forest cover, pasture lands, agricultural lands and built-up area areas for each of images were extracted. The results of data analysis in the first period (2000-2007) and the second period (2007-2016) showed the greatest increase in agricultural lands and pasture lands have the greatest decrease area. Based on these changes and by taking eight independent variable, transition potential modeling of 2016 was done using Artificial Neural Network. Then by hard predict model and images were classified of first period (2000- 2007), the land cover map in 2016 using Land Change Modeler was predicted. After evaluating the model, 83.09 and 71.10 overall accuracy was obtained for the first and second periods showed the consistency between prediction map and classified map of year 2016. The land cover maps by entering the second period (2007-2016) to Land Change Modeler the land.
Mostrar más [+] Menos [-]Integration assessment of the protected areas using landscape ecological approach (Case Study: Kolah Ghazy National Park and Wildlife Refuge)
2017
Barati, Behzad | Jahani, Ali | Zebardast, Lobat | Rayegani, Behzad
Landscape fragmentation, due to the roads construction, urban infrastructure development and other land uses, seems to be in result of the loss of habitat in protected areas. Indeed, Landscape fragmentation causes a huge negative impact on wildlife, including important species. In result, the monitoring and management of protected areas, through the landscape ecology and quantification of fragmentation, will be so applicable. This research aims to quantify the landscape fragmentation in Kolah Ghazy national Park and wildlife refuge. To achieve this purpose, RS and GIS techniques were used to extract land uses in studied area and then landscape fragmentation was quantified using landscape metrics (CA, CAP, TE, MSI, NP, MPS and MNN) in class level. The results cleared that rich rangeland patches have been more integrated, but the incompatible land uses, such as mining, agriculture and urban infrastructure development make these patches to be more far away from each other, so, reduction of incompatible land uses is recommended in the region.
Mostrar más [+] Menos [-]Explaining the obstacles of the movement of capital in Iran with a spatial planning approach
2017
Mousavi, Mir Najaf | Kiani, Mostafa
The government system of' Iran is centralized, and because in unitary and single power states, the security of political center (capital) with the total security of political system (National Security) has a direct relationship, the capital movement in Iran becomes important from two aspects; the first is to organize Tehran city and balance urban and regional system of the country and the second is to maintain the political security of the country. Capital movement from Tehran to other cities has been among the issues for more than 220 years but nothing has been done for some reasons. The aim of this paper which is written by descriptive – analyzing and survey method is to identify the main obstacles and the challenges of processing the capital and to present the strategies to remove the obstacles. So 7 elements as Economic, political, security, executive, social-cultural, legal and natural-ecological elements are selected in 55 items and are weighed by the academic elite people. After analyzing the information and using the structural equations model the results showed that the legal factor holding 10 items has the most direct (0/089) and indirect effect and the natural-ecological factor has the least effect (0/033) in moving the capital. Also the results of the network analyzing model for preference survey showed that the experts give priority to executive obstacles which hold final weigh 0/218 and compatibility rate 0/022 stands at the first grade in the priority survey of the obstacles.
Mostrar más [+] Menos [-]Place Vulnerability Assessment of Ardabil’s Infrastructures Using Passive Defense Approach
2017
Seyedin, Afshar | Amini varaki, Saeed | Rostami, Hussein | Yazdani, Mohamad Hussein
Although Iran has a strategic position in the Middle East and there are threats of neighboring and non-neighboring countries, projects and economic infrastructures have been established without proper defensive considerations and are targets for enemy threats and other offensive actions. The present study is an applied and developmental research that aims to study and scrutinize the vulnerability of infrastructures in Ardabil province from the perspective of passive defense. Moreover, analytic network process (ANP) approach is used in GIS environment with elements of physical and biological environment, accessibility, and infrastructures in order to carry out the research. The results of spatial pattern analysis and vulnerability zoning show that the spatial distribution of infrastructure in Ardabil province is cluster type (non-dispersive) and in terms of vulnerability, 7% of Ardabil province is located in highly vulnerable areas which are themselves among the most densely populated places with high amounts of established infrastructures. This is due to poor physical indicators and lack of sufficient managerial, industrial, and military institutions in these areas of the Ardabil province.
Mostrar más [+] Menos [-]Determining the Spatial Boundaries of City-Region for Tehran Metropolis and its Surrounding Area
2016
Sharifzadegan, Mohammad Hossein | Fathi Farzaneh, Amir
The consideration of Tehran metropolis and its soundings areas has been the first one of recent challenges in Iran’s spatial planning which made it possible to develop the concepts such metropolitan region and conurbation. However, it is obvious that there appears to be a much more proper structure due to neo-regionalism and globalization in order to understanding of dynamic nature of Tehran and its surrounding. Nowadays, spatial phenomena have probably influenced by the physical and political boundaries which did not make the functional nature of interactions of these regions. City- region is among concepts that have not received due attention in recent years and was only discussed and presented in academic circles. This is perhaps a result of too much focus on the issues within cities. This paper has tried to present an optimum city-region spatial model that matches the spatial structure of our country as much as possible. After determining the required indexes by using of 85 city points in 250 kilometers distances from Tehran, the spatial boundaries of Tehran city-region is determined through flow analysis and estimations of distance from center and finally, by the using of analytical and adaptive methods the spatial model for Tehran city- region, with two cores and 41 peripheral cities will be presented. It is the functional foot print of Tehran metropolis based on daily and weekly commuting by a spatial logic.
Mostrar más [+] Menos [-]Use of Landscape Metrics in Land Use Allocation
2016
Saeed Sabaee, Maryam | Salman Mahiny, Rassoul | Shahraeini, Seyed Mohammad | Mirkarimi, Seyed Hamed | Dabiri, Nouroddin
Creating and preserving large patches in land use configuration and satisfying compactness and contiguity in land use configuration are nature-prescribed and nature-inspired criteria that can be used in land use planning better that before. Accompanying compactness and contiguity as the important landscape metrics in land use planning and land use configuration is close to applying proactive approaches rather than assessing the intense of Human activities' impacts on environment after its altering. To explain how to introduce compactness and contiguity to a land use configuration study, we assume the study area as a matrix that every cell or pixel of the matrix has the color or value that shows the type of land use. In this situation, the compact configuration will be made if the same color or value pixels are located adjacent to each other. With respect to this premise we defined some equations to achieve compactness and contiguity in land use configuration. Finally, we tested the equations in applied case of land use planning in a part of Gorgan Township. We applied hybrid of linear programming and ant colony algorithms for testing suggested method. The results show that the method can be succeeded in achieving these criteria.
Mostrar más [+] Menos [-]Modeling Agricultural Destruction Lands Resulted By Urban Growing in Suburb of Urmia City by Applying an Object Based Image Analysis Approach
2016
Feizizadeh, Bakhtiar | salmani, Saeed
In the present research land use changes modeling in the Urmia city is considered in order to detect changes in agricultural lands. In this regard, Landsat satellite images were used and then the object base processing satellite images was performed by applying the process segmentation and in the next stage, the optimization of scale segmentation and image analysis to its constituent elements, the object basic algorithms according to the physical condition, geometric of each land-use classes were used. During images processing in addition to spectral data, the data in the form of homogeneous, shape and texture (GLCM) were used for land use extraction. The results show that the Urmia city had so many physical expand in the past 31 years so that its area has increased from 7.43% of the total study area in 1363 to 30.75 in 1394. This increase was rectify by the reduction of agricultural lands so that large amount of agricultural lands have been used for construction purposes which has caused land degradation, particularly fertile lands in this area, particularly within the Shahr chay river, Mahabad road, Sero road, Darya road and the road of Salmas.
Mostrar más [+] Menos [-]The zoning of Land demolition of Kerman city bounds due to urban - Industrial development (technogenical desertification) by using GIS
2016
Kazeminiya, Abdolreza | Meimandi Parizi, Sedigheh
In the recent decades, the effect of dry climate of Iran is due to expanding desertification in this country. The countryside of Kerman has selected for this survey. For investigating of amount of deserts generation around this city after geometric and radiometric studying، the image of Landsat ETM + 2009 and aerial photos at a scale of 1: 5000, preparing of basic maps of earth and vegetation covers maps. To estimate of the severity level of desertification in Kerman, The indicator of Urban and industrial development based on IMDPA , that including density of roads and mines, amount of green space and changing to pasture and forest land. After that giving score to this parameters did upon its affect for destroying and desertification.Finally, in GIS software, with using analytic functions required based on IMDPA. Land area were classified in terms of desertification. The results show that the effects of desertification land in Kerman city can be classified to three section، critical , medium and low.
Mostrar más [+] Menos [-]Systematic Analysis of Strategic Variables of Regional Development in Scenario- based Planning (Case: Mazandaran Province)
2015
Zali, Nader | Zamanipoor, Masood
The present era is an era when rapid and amazing changes due to the rapid advancement of science and technology, political decisions by governments and other macro and micro factors arrive quickly which have a profound impact on the dominant trends. So, for the formulation of regional development scenarios in such era, realistic and systematic knowledge in the strategic area of planning seems to be essential. Using developmental approach and applying systems theory, the researcher in this study aimed to evaluate and analyze the development strategic variables of Mazandaran province as the main variables of scenario planning for regional development in horizon 1410. The methodology of this study is structural analysis. It is a qualitative research in terms of nature of the data, and a survey and documentary one in terms of methods of data collection. Cross analysis are used to analyze data by use of MICMAC software. The results indicate that the key and strategic variables of Mazandaran province development in Horizon 1410 includes: "the way of country’s macro management ," "inflation," "the way of managing the province", "Research & Development (R & D)", "level of IT (information technology)", "population", and finally "inter-institutional cooperation ". Meanwhile, the key capabilities and the priorities of the development of the province in Horizon 1410 include: "Crops", "gardens and nursery ", "aquaculture", "special economic zone of Amirabad", "tourism", "Fereidoon'kenar Port", "AmirAbad Port ".
Mostrar más [+] Menos [-]A Genetic Algorithm Enhancement of MOLA Approach Using Landscape Metrics
2015
Kamyab, Hamidreza | Salman Mahiny, Abdolrassoul | Shahraini, Mohammad
There is competition between land uses in spatial land use allocation. In this research two approaches including Multi Objective Land Allocation (MOLA) and optimization with Genetic Algorithm (GA) were used for conflict resolution. The MOLA approach is based on suitability and proximity to ideal point whereas in GA, a suitability layer together with a cohesion index was used for land use allocation. The output from MOLA application was fed into the GA approach as the initial population and contiguity index as a landscape metric was used in the process to improve the result. With inclusion of contiguity in the GA approach which is absent in MOLA, and has no precedence in Iran, the final patches in the land use pattern were compacter and better shaped. Results showed GA application using MOLA output improves landscape metrics specifications in the final land use plan. However, including landscape metrics compromises suitability for land use, but there is possibility of balancing suitability and landscape indices in the GA application process. The final layer created through GA showed capability of considering suitability and landscape metrics simultaneously in land use planning towards achieving an optimal solution.
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