نشریه مدیریت آب
سال ششم شماره 1 (پیاپی 16، بهار 1398)

Increasing in development and consumption of water in upstream of the Hirmand River by Afghanistan had been a negative impact on Iran's water supply. This creates tensions between the two countries. Iran knows dam construction in upstream catchment is a threat to regional water security. In additional, political tensions, climate change with changing water flow patterns, and reduced access to water in the common watershed have led some farmers to claim that insufficient water had been taken their tends to cultivate low-water crops like poppy. Increasing population problems within the Sistan Wetland has caused migration from the area and can lead to environmental crises. The proposed strategy is to establish baseline water courses data, build capacity to manage and increase the efficiency of irrigation systems, establish an international support network for negotiations, and establish a border water commission between the two countries.

Currently, the most important issue in the Caspian Sea is its delimitation. This article briefly outlines the legal implications of the delimitation of the sea. The results showed that by neglecting the Staples (nondenial after confession) affirmed by the International Court of Justice, Iran could change its rapid and serious stance in the course of the dialogue resulting from the treaty to the negative consequences of some treaties.

This paper studies the statistical correlations of 5 meteorological drought indices and the use of monthly rainfall data of 12 climatological and synoptic stations in the Jarrahi and Zohreh basins and surrounding areas. The statistical years were not the same and between 1951 and 2010 these statistics were matched. Drought events were determined using Standard Precipitation Index (SPI), Normal Percentage Index (PNI), Decimal Index (DI), Chinese Z Index (CZI), Z Index (ZSI) and Sequences. Dual correlation coefficients of all stations in this province showed relatively high values, so 54 maps were plotted for 54 years with SPI index and sequences and 1995 and 2010 were the driest years.