List of Articles Ecological capacity evaluation

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - A new model for evaluation of Iran’s ecological capabilities to establish service and civil development application (case study: district 22 of Tehran
  Seyed Ali Jozi Sahar Rezaian
  Abstract Ecological capability evaluation is to realize the potentialities of a land in the form of expected and achievable applications. This study is aimed to design a new model for service and civil development application to be employed in the evaluation of the coun More

  Abstract Ecological capability evaluation is to realize the potentialities of a land in the form of expected and achievable applications. This study is aimed to design a new model for service and civil development application to be employed in the evaluation of the country’s ecological capability studies. To this end, first the frequency of sustainable and unsustainable ecological factors inIranwas identified. Then, theDelphimethod which is a branch of phase theory methods was used. Prioritization of effective ecological factors and assessment of the frequency value of each factor were made by completing 750 questionnaires for desired branches (Delphigroup). The gathered data were analyzed using SPSS software version 11.0. After being designed, the model was introduced to the geographical information system using Arc info program. The model’s sensitivity analysis test was done with the purpose of determining the extent to which favorable responses are affected by certain changes in the target function through Simplex method using lingo software. This model is used in the evaluation of ecological capability at the time of analyzing the ecological resources of the field under examination and after preparing the map of environmental units. In fact, environmental units map is considered as the fundamental map in ecological capability evaluation studies. To asses the capabilities of the new method, ecological capability of District 22 in the city ofTehranwas evaluated as a case study and the service and civil development application map was prepared using Arc view GIS 3.2a program. The results of the study show that the points given to environmental units vary from zero to sixty-five. Such restricting factors as the existence of some environmental units along the river bank, fold passages, and hilly areas prevent these units from being allocated to service and civil development applicati Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  2 - Evaluating the Ecological Capacity for Urban Development Using a Combination of AHP and GIS (Case Study: Baghmalek District)
  Panta Azari Ali Shirzadi Babakan
  Background and Objective: Today, urban planners have become interested to consider sustainable development in their planning. Evaluation of ecological capacity for urban development in order to select appropriate locations is the main factor in sustainable development. More

  Background and Objective: Today, urban planners have become interested to consider sustainable development in their planning. Evaluation of ecological capacity for urban development in order to select appropriate locations is the main factor in sustainable development. In this study, it has been attempted to evaluate the ecological capacity in order to determine the best possible regions for urban development in Baghmalek district by applying a combination of Analytical Hierarchy Processes and geographic information system. Method: In order to achieve this objective, first we recognized the effective criteria in urban development using the previous studies and by collecting opinions of the experts by Delphi methodology. Finally 5 criteria and 12 sub-criteria were selected. Then, we determined the priority of the criteria against each other by pairwise comparison method and by applying Analytical Hierarchy Processes. Finally, the required information layers were valuated based on fuzzy logic in environment of Geographical Information System (Arc GIS 10.2), the calculated weights were applied on them and ecological capacity map was prepared by weighted overlaying the layers. Results: The results indicated that %46.65 of the studied area has a completely unsuitable potential, %39.62 has an unsuitable potential, %12.27 has an average potential, %1.17 has a suitable potential and %0.29 has completely a suitable potential for urban development.   Conclusion: According to the classification of the final map, it was concluded that the prone areas for future physical development in Baghmalek district can be further expanded in the northern part. On the other hand, Southeast and East directions because of having mountainous regions, face with more restrictions for future development.                                                                                                                                                            Manuscript profile