Behbahan County with extent of 3516 Km2
has located in between longitude of 50°13! and 50°16! at
East and in latitude of between 34°30! and 30°37! in
North. This county is placed in semiarid region in east
southern of Khuzestan province of Iran and height of it
from sea surface is 300 m. Annual rainfall average of county is 354 mm, the minimum temperature is -2.8ºC
and maximum temperature is 50.2ºC (Anonyms, 2009).
Number of exploitable units of county is 7314 units that
82% of them have a space under 10 ha (Anonyms, 2006).