Showing 2 results for Garmsar
Dr Mehdi Safari Namivandi, Mr Alimohammad Gholami, Dr Parastoo Ghaforpuranbaran, Mr Kamyar Emami,
Volume 8, Issue 4 (1-2021)
Abstract
Objective: Land subsidence is one of the hazards that affect many plains in Iran, including the plains of Semnan province. Given that the risk of subsidence is associated with many harmful effects, this study evaluates the subsidence situation in the urban area and urban outskirts of Garmsar and analyzes the factors affecting its occurrence.
Methods: In this research, Sentinel 1 radar images, Landsat satellite images and information related to groundwater resources of the region have been used as the most important research data. The most important research tools have been ArcGIS, GMT and Google Earth Engine software. In this research, first, using the SBAS time series method, a map of the subsidence rate of the region has been prepared and then its relationship with the decline of groundwater resources and the type of land uses of the region has been investigated.
Results: Based on the results obtained, the study area has subsided between 12 and 79 mm during a one-year period (from January 2021 to January 2022), with the highest rate of subsidence in the southern outskirts of Garmsar city.
Conclusions: The results of this study also showed that the annual decline in groundwater resources in the southern wells of the region was more than 2 meters, and given that the highest rate of subsidence was also related to these areas, it can be said that the main reason for the subsidence of the region was the decline in groundwater resources. Also, based on the results, the development of human constructions, especially heavy structures, has been effective in intensifying the subsidence that has occurred.
Eng Pouria Ghobakhloo, Dr. Mohammad Kia Kianian Golafshani, Dr. Amin Salehpour, Dr. Shima Nikoo,
Volume 11, Issue 4 (2-2025)
Abstract
Desertification is a complex issue, which is caused by both natural processes and human activities. This includes land degradation due to various factors such as wind and water erosion, destruction of vegetation and reduction of water resources. Sustainable human development depends on three key elements: people, resources and participation. The purpose of this research is to identify the criteria and indicators that affect the non-sustainable participation of rural communities in desertification plans, to prioritize these criteria and indicators based on the local residents' point of view, and to provide solutions to increase the participation of villagers. The communities in the desertification plans of this research are the villages of Ghayasabad, Shorkazi and Mohsen Abad in Garmsar city, which have existing plans for desertification. After the initial evaluation of the areas, talking with the local residents, appropriate criteria and indicators for preparing the questionnaire were determined and distributed among the people. In order to analyze the questionnaires, the Friedman test was used to prioritize the indicators. The results showed that educational criterion is the most important criterion of non-participation of people in desertification projects from the point of view of local communities (2.69 rank) and social (2.63), economic (2.35) and Planning (2/33) from the point of view of local communities were prioritized in the next stages. Also, Friedman's test showed that, from the point of view of local communities, the index of non-use of local promoter groups, with an average rank of 11.72 and 10.33, respectively, is the most important index affecting people's non-participation in desert projects. were detected.
