• Dendrochronological Investigations in Iran

      Liphschitz, Nili; Waisel, Y.; Lev-yadun, S.; Department of Botany, Tel-Aviv University, Israel (Tree-Ring Society, 1979)
      Dendrochronological research on Juniperus polycarpos growing in west and central Iran reveals that the radial growth in this species depends mainly on the amount of precipitation in the more arid regions. When the amount of rain is sufficient, i.e. above 450 mm, the prevailing summer temperature seems to become the limiting factor. Favorable conditions which prevailed during the periods 1685-1695 and 1790-1800 resulted in better width growth, while less favorable conditions which prevailed during the years 1725-1735 and 1855-1865 resulted in narrow rings.