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   study of drought in northern karun watershed  
نویسنده dashti marvili mohammad ,dabiri danial
منبع international journal of advanced biological and biomedical research - 2013 - دوره : 1 - شماره : 5 - صفحه:487 -492
چکیده    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.
کلیدواژه drought ,standard precipitation index (spi) ,karun watershed
آدرس islamic azad university, borujerd branch, ایران, university of sari, department of natural resource, ایران

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