Norway Spruce in Estonia Reflects the Early Summer Weather in its Tree-Ring Widths

作者：Laanelaid Alar^*; Eckstein Dieter

来源：Baltic Forestry, 2012, 18(2): 196-204.

• Norway spruce
• dendroclimatology
• pointer years
• Estonia
• early summer rainfall/temperature

From Norway spruce (Picea abies (L.) H.Karst.) trees all over Estonia, increment cores were collected to study the relationship between tree-ring width and climate; particular emphasis was given to pointer years. Between 1871 and 2009, 34 negative and 31 positive pointer years were identified. As a limiting factor for the growth of spruce, June precipitation/temperature turned out to be most obvious, especially in pointer years. This dependence lost previous importance during the last decades while the amount of rainfall slightly increased.

• 出版日期2012