Browsing Journal of Range Management, Volume 35, Number 2 (March 1982) by Authors
Foliage Mortality of Mountain Big Sagebrush in Southwestern Idaho during the Winter of 1976-77Hanson, C. L.; Johnson, C. W.; Wight, J. R. (Society for Range Management, 1982-03-01)Mountain big sagebrush (Artemisia tridentata subsp. vaseyana) in southwest Idaho suffered extensive overwinter foliage mortality during 1976-77 where the normally deep snow cover was lacking. Mortality was 75 to 100% in areas where snow usually covers dense stands of sagebrush; however, winterkill was slight in areas of usually shallow snow cover. Winter-induced physiologic drought caused by frozen soils, low soil water content, and above average air temperature was the apparent cause of sagebrush foliage mortality.