Determination of the most appropriate level of utilization authorized of Artemisia sieberi in steppic site)Case study: dehno- bardsir, Kerman province(

The present research was done in steppic rangelands of Dehno، Kerman province to study the effects of different harvesting intensities of Artemisia sieberi applying simulation method. The experiment was conducted using split plots in a completely randomized experimental design of ten replications to find the best grazing intensity. Treatments are including no harvest (as a control)، 25، 50 and 75% harvest. In each treatment، 10 similar and average plant species were selected as replications. All dependent variables were evaluated during the study and results were analyzed in SAS software. Results showed Minimum and maximum forage production was obtained at 25% harvest in 2008 and no harvest treatment in 2009، respectively. Regarding to the obtained results and soil condition، the 50% harvesting intensity is recommended in Dehno site to maintain the vigority of Artemisia sieberi that is not dangerous for its survival، healthiness and vigority even in drought conditions.