TY - JOUR AU - Standiford, Richard B. AU - Donaldson, Dean TI - Trees as energy crops JF - California Agriculture JO - Calif Agr Y1 - 1982/05/01 VL - 36 IS - 5 SP - 19 EP - 20 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v036n05p19 AB - Field-tested as energy crops in Napa County, two eucalyptus species produced an estimated 25 to 32 million Btu per acre per year.