تحلیل هزینه- فایده انتقال آب از سد سیبویه (سیوند) به شهرستان ارسنجان - استان فارس

arsanjan is located in northwest of fars province . and is rich in agriculture & jungle . the major problem of this town is water shortage the water is not enough for agriculture . however , power ,mnistry is building a dam on the sivand river in north west of arsanjan to transfer 60 million cubes meters of the waters this river to this town. this is possible through digging canals from two different diretcions . sivand dam - arsanjan jungle – planting fiedls around the city and village of aliabad-e-malek . deivere dam of hashtigan-seidan & farough plain-agriculture fields of and villages of khobriz and shorab. transfering warer through the second direction is less expensive. but the first area has less water and needs more digging . the second area has semi - salty soil & is not rich . in this research water demand & supply is estimated and the amount of a water imported from this dam is accumalate with water resource and the excess welfare (consumer & producer surplus) of the population is measured . the results show that transfering water from the first direction is more economic. to do this research stone- gary utility model to used & 2sls method & optimization agricultural instutions using linear plannig were used . jel classification: d6.