机译:伊朗Hycanian森林中人工砍伐和加工树木的时间消耗,生产率和成本分析
Natural Resources Faculty, Forestry Department. Urmia University.P.O. Box 165, Urmia, Iran;
University of Guilan, Somea Sara, Department of Forestry, Guilan,Iran;
Natural Resources Faculty, Forestry Department. Urmia UniversityP.O. Box 165, Urmia, Iran;
Finnish Forest Research Institute, Parkano, Research Unit, Kaironiementie 54, FI-39700, Parkano, Finland;