Environmental Economics
Sasan Gharakhani; Hadi Amiri; Babak Saffari; Maede Mohammadi
Abstract
Groundwater is a natural common-pool resource that has long been a victim of tragedy of the commons due to selfish withdrawal of farmers During recent years. One solution to coping with this problem is to replace flood irrigation with large-scale irrigation system (LIS) within the framework of participatory ...
Read More
Groundwater is a natural common-pool resource that has long been a victim of tragedy of the commons due to selfish withdrawal of farmers During recent years. One solution to coping with this problem is to replace flood irrigation with large-scale irrigation system (LIS) within the framework of participatory conservation projects. As these projects are costly, they require financial support by the government and cooperation among farmers. In this study, given the unstable raining conditions and drying out of Zayanderud, an agent-based model (ABM) on participatory management of groundwater resources is proposed for 223 villages in Isfahan Province in the form of participatory conservative projects. The results of this study indicate sensitivity of model’s simulation and high sensitivity of villagers to the government’s financial supports. This model predicts when the government pays 85% of the costs for changing the irrigation system, the participation will rise to two-thirds. Further, the results of simulation suggest that with increasing the number of farmers, the rate of participation will significantly drop. Finally, according to different scenarios in this study, it is suggested that the government begins its financial support from the small villages with the pioneer group (near the pumping water) and scale-free social network.
Other
Azam Jalaei; Nematollah Akbari; Bbabak Saffari
Abstract
One of the important tools to increase supply chain productivity and reduce logistics costs is to establish logistics hubs. Since there is no logistics hub in the central region of Iran, this study was conducted to identify a suitable area for a logistics hub in Isfahan province. In this line, criteria ...
Read More
One of the important tools to increase supply chain productivity and reduce logistics costs is to establish logistics hubs. Since there is no logistics hub in the central region of Iran, this study was conducted to identify a suitable area for a logistics hub in Isfahan province. In this line, criteria influencing the location of the logistics centers in terms of certain limiters (geological and environmental factors) and cost influencer (measurable factors with quantitative values (compensation criteria)) criteria were identified, and then, the process of locating was implemented in two separate phases. In the first phase, geographical boundaries associated with limiters criteria were excluded from the study scope to identify the potential site options for a logistics hub within the province. In the second phase, the mathematical modeling approach was used to model the total cost of the logistics network. Next, the cost of establishing a logistics hub was calculated in possible sites in terms of cost influencer criteria and using geographic data layers. The findings revealed that the optimum location is in the central part of the province, where all the economic activities are concentrated. Still, rail and road infrastructures and industries are the most influencers in the optimum location.
