TY - JOUR AU - kavian por, amir hoseim AU - ghorbani, ardavan AU - heshmati, gholam ali TI - Application of spatial statistic in assessing canopy cover variation of rangeland plant species of sheep fescue JO - Natural Ecosystems of Iran VL - 5 IS - 3 SP - 59 EP - 70 PY - 2014 DO - ER -