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Environmental Development Planning of Shandiz District based on the Analytical Process
2018
Jahani Shakib, Fatemeh | Hashemi, Nasim
One of the new problems is paying attention to environmental planning for sustainable exploitation of land resources and prevention of environmental issues that have been considered by researchers and managers recently. As much as this planning is based on objective facts and potentialities, achieving predetermined goals becomes more feasible. On the other hand, environmental planning tools have tended to achieve local-scale plans to reach more sustainable cities and townships. In this paper, local-scale development planning has investigated in Shandiz district located at Torghabeh-Shandiz city. The planning of the Shandiz district has carried out using the analytical process consisted of three stages of environmental planning and using the Geographic Information System (GIS). The first stage involves understanding the capabilities and potentials of the study area through the study of the current status. Issues, facilities, and constraints associating to each section are categorized and prioritized in the second stage. The third step involves drawing a vision, organizing the general goals, and defining the objectives. Regard to the priority of the studied factors, it was proposed spatial solutions in environmental units. Finally, physical-spatial development plans were developed to guide the regional changes according to the natural and man-made constraints and potentials.
显示更多 [+] 显示较少 [-]Analysis of the Spatial Interaction between the Iranian Southern Ports and the Regional Hinterland Cities
2018
Dadashpoor, Hashem | Arasteh, Mojtaba
Ports in most parts of the world play a great role in creating integrity between the prosperous of the regions and balancing the supply chain (production, distribution, and consumption). This article is to analyze the spatial interaction between the southern ports of Iran and local-regional hinterlands and explain the role of ports in shaping the spatial structure. For this purpose, a network analysis of commodity flows method is used in 1996, 2006 and 2015. The findings indicate that southern Iran's ports are often the importer of consumer goods in the populated centers, located in regional hinterlands, and, at best, have exported energy sources and raw materials. While urban centers, located in local hinterlands, do not play an effective role in the production and delivery of goods to ports, they are often dependent on the regional center (Shiraz) to meet their consumption needs. It revealed that although the process of spatial inequality has been moving towards greater balance over the past two decades, the development of medium-sized ports and local nodes in the contiguous hinterlands and forelands has led to a balanced monocentric spatial structure in this region.
显示更多 [+] 显示较少 [-]Predicting of Land Use Changes for 2030 Using Remote Sensing and Landsat Multi-Temporal Images (Case study: Mashhad)
2018
Rayegani, Behzad | Jahani, Ali | Satari Rad, Amir | Shoghi, Narges
By predicting land use changes, the extent of the expansion and destruction of resources can be determined, and future policies can be pushed in the right direction. The aim of this study is modeling the land use changes process in Mashhad by using Landsat satellite images related to 1989, 2008, and 2014. Initially, based on the hybrid method (unsupervised and supervised classification combination), land uses were classified into six classes. Then, by using the Markov chain, the transmission matrix between 1989 and 2008 was calculated and by applying it in the Markov-CA model, the land use map for 2014 was predicted. In the following, the predicted land use map for 2014 with the actual 2014 land use map was compared with the Crosstab table, and the total Kappa coefficient was 0.91. Accordingly, the accuracy of the predicted Markov-CA model was confirmed. Finally, this model was used to predict land use in 2030. Therefore, by entering the 2014 reference map as the base map, the 2030 land use map prediction map was extracted. The results showed that from 1998 to 2030 there will be an increasing trend in urban and arid lands and a decreasing trend in agricultural lands and gardens. The results indicate that the Markov-CA model can contribute to the design of a sustainable urban system.
显示更多 [+] 显示较少 [-]Assessing Tourism Attractions of Gharahsoo Watershed Based on the Impact and Effectiveness of Environmental Criteria
2018
Ahmadi Mirghaed, Fazlolah | Mohammadzadeh, Marjan | Salmanmahiny, Abdolrassoul | Mirkarimi, Seyed Hamed
Identifying tourism attractions is a basic requirement in the local and national community toward balanced and harmonious development of land potential. This study aimed to evaluate the tourism attractions of Gharahsoo watershed in Golestan province, northeast of Iran, based on the impact and effectiveness of environmental criteria. After determination of criteria and preparation of layers, criteria analysis was done based on the impacts and effectiveness of the criteria using DEMATEL method. Entropy Shannon method was used for weighting criteria. Finally, the spatial analysis was done by employing the TOPSIS method. The results showed that landform and plant density, in terms of the impact, and access to facilities, in terms of the effectiveness, have priority over the other criteria. Also, the criteria weighting results showed that the criteria access to facilities, landform and plant density with the value 0.229, 0.147 and 0.123 are a priority to the other criteria, respectively. Finally, the results showed that, in terms of tourism attractions, the areas of the southern of Gharahsoo watershed are in suitable conditions and the rest of the area, especially the northern parts, has unsuitable conditions.
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