Author/Authors :
Dashti Marvili ، Mohammad Islamic Azad University, Borujerd Branch , Dabiri ، Danial - University of Sari
Abstract :
Drought is a natural hazard that has significant impact on economic, agricultural, environmental, and social aspects. In the present study details analysis of rainfall data has been carried out for the years 1981-2011. Standard precipitation index (SPI) has been used to evaluate the precipitation deficit in the Karun watershed of Iran. The results indicated that 1981-82,82-83,83-84, 84-85, 88-89, 89-90, 90-91, 93-94, 96-97, 98-99, 99-2000, 2000-2001, 2002-2003, 2007-2008, 2008-2009, 2009-2010 and 2010- 2011 the SPI values is negative. It is very anguish. And also this found threat drought the water resource and agriculture.
