Groundwater resources are important part of the sweet water available to humans. The present study studies and evaluates the quality of water resources of karstic basin of Roein Esfarayen. For this purpose, sampling of water from water sources was carried out and groundwater quality of the area was evaluated in terms of drinking, agriculture and industry using Schoeller, Wilcox and Langelier diagrams, Water Quality Index( WQI) and groundwater quality index (GQI). According to the results of the analysis of the samples taken and the relevant charter diagrams, most of the water sources in the area were in the good category for drinking. The results of the Wilcox diagram showed that only S7 (Springs of Zargara), S6 (Springs of Sarang Zwucha) and S20 samples (rivers at the basin outlet) had saline water but could be used for agriculture and the rest were suitable for agriculture. The water quality table of the region's springs in terms of industrial use also showed that all of the water samples of the region except the Springs of Sangvah, which contains sediment-bearing water, have corrosive properties. The WQI index is also indicative of the quality of all samples taken in drinking water, and only the surface water of the basin outlet whose WQI is above 50 is in good condition. Location and quality zoning of drinking water from the GQI index was also carried out. The GQI quality index in the region varied from 93.42 to 95.87 in the region. Therefore, it can be said that although the minimum quality of samples is related to surface water of the basin, but this quality value is also in the appropriate quality category. Therefore, in total, all the water resources of the study area are in the category of quality in terms of drinking water standards

Geographical studies on food categorized in five scales; global and transnational, national and regional, urban, rural and agricultural, domestic scales of food consumption and the individual as a consumer. Based on this categorization, the present study is placed within urban and domestic scales. By accepting that population of Tehran metropolis will definitely increase in future and regarding that based on systematic approach and limits to grow theory (Meadows, Randers, & Meadows, 2004), no growth in the world will continue forever. We must consider factors that limit the growth of Tehran, besides factors provoke development. One of the limiting factors is the natural and geographical potential of Tehran metropolis. For this research among qualitative methods in futures studies, we chose the scenario, because this method "make the future more real for decision makers to force new thinking and decisions". In the formulation of food consumption scenarios, due to the diversity of stakeholders, the challenges and the types of issues and ambiguities, the approach of the Global Business Network (GBN) was chosen. To analyze the key factors and identifying the key variables the structural analysis method and MickMac software was used. Based on two key variables, technology, and consumer responsibility, four scenarios were created, these are four scenarios: Smart eating scenario, McDonaldization of Society scenario, Food Geography scenario, and Community Eating scenario. In this study, four alternative food futures have been presented for Tehran. In these scenarios, both desirable and undesirable futures are clearly and accurately depicted. The geography of food scenario due to the neglect of the environmental capacities and natural and geographic potentials is the most unsustainable scenario for the future of Tehran. Without scenarios, thinking about the futures of food in Tehran is very difficult and even impossible. These scenarios can help us take into account possible futures in today's decisions. Although this article does not predict a specific future for food in Tehran, But, given the recognition and sensitivity of the events, it can be very useful for long-term decisions.

International rivers, as borders or crossing national borders, have been considered as a significant part of international relations. Especially, approximately half of the world's population lives within the basin of these rivers, and more than 90% are living in countries with these basins. This condition, by creating an undeniable relationship of interdependence, has made water a critical issue for these countries. Thus, as populations and economies grow and develop and national water resources are exploited for additional growth and development, government action and reaction to a higher share of these transnational sources will increase. By the way, the type of government interaction in line with exploiting these common resources includes a wide range of cooperation to tension and war. In some parts of the world, common water resources in the form of rivers have used as a linking factor between nations and governments. So that, instead of conflict, the beneficiary countries take the path of cooperation and convergence and they have taken important steps with regard to the development of the region as optimal management of common water resources. Although the achievement of international cooperation is a long, lengthy and complex path, always, there are many ways to follow, many steps to take, and many options for appraisal and selection. The current research is a descriptive-analytical research and by means of library resources and examining the practical status of cooperation in a part of the Danube River as a model, concluded that cooperation was not just for water agreements and factors such as environmental concerns, regional security, regional benefits (such as joining organizations and ::union::s), mediation (governments, international organizations, and institutions), etc., are effective in this process.
 

The purpose of this study was to identify evidence of late Quaternary glaciers in the northern highlands of Binalood. Topographic maps, satellite imagery and climatic data are the tools and data used in this study. Arc gis 10.4 software was used for data analysis. Quaternary glacier evidences were identified based on four types of evidences including morphic indices, climatic evidences, geomorphological evidences and laboratory indices. Using morphic indexes, the curve lines were identified on topographic maps of satellite imagery, ice-dominated areas, and the effects of 28 glacial circuses. Climatic evidence shows that not only was Quaternary at about 7 degrees cooler than the present time, but its precipitation was almost twice as high as at present. On the other hand, glacier circles, moraines, thales and glacial mounds were the most prominent geomorphologic evidence of glaciers in the Binaloud Heights. Finally, granulometric laboratory indices supplementing the evidence of glaciers have confirmed the existence of glacial sediments at the Binaloud Heights. Also, using Wright's method, the permanent snow boundary line during the reign of Binalood Heights Glaciers was estimated at 2600 m.