Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

A 403-Year Record of July Temperatures and Treeline Dynamics of Pinus sylvestris from the Kola Peninsula, Northwest Russia

B. R. Gervais and G. M. MacDonald
Arctic, Antarctic, and Alpine Research
Vol. 32, No. 3 (Aug., 2000), pp. 295-302
DOI: 10.2307/1552528
Stable URL: http://www.jstor.org/stable/1552528
Page Count: 8
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
A 403-Year Record of July Temperatures and Treeline Dynamics of Pinus sylvestris from the Kola Peninsula, Northwest Russia
Preview not available

Abstract

A 403-yr tree-ring chronology (A.D. 1595-1997) was developed from living and dead Pinus sylvestris L. (Scots pine) from near treeline on the Kola Peninsula in northwestern Russia. Ring-width is significantly correlated with mean July temperatures. A reconstruction of mean July temperatures generally parallels similar dendroclimatic reconstructions from northern Fennoscandia. The Kola reconstruction indicates that the early- to mid-20th century experienced an exceptional period of warm summer temperatures. Dendrochronological techniques were used to estimate the timing of establishment and mortality of Pinus sylvestris at the site. Tree recruitment and mortality appear inversely related and episodic, with pulses of recruitment occurring during the late-17th, 18th, and mid- to late-20th centuries. The mid-20th century pine recruitment episode lags several decades behind the initiation of 20th-century summer warming. Analysis of instrumental climate records and pine recruitment suggests a link between warm fall and early spring conditions in the mid-20th century and increased pine regeneration. The results of this study are similar to findings from northern Fennoscandia and extend this pattern of recent climatic variation and associated treeline response eastward into the Kola Peninsula.

Page Thumbnails

  • Thumbnail: Page 
295
    295
  • Thumbnail: Page 
296
    296
  • Thumbnail: Page 
297
    297
  • Thumbnail: Page 
298
    298
  • Thumbnail: Page 
299
    299
  • Thumbnail: Page 
300
    300
  • Thumbnail: Page 
301
    301
  • Thumbnail: Page 
302
    302