A Scots pine, Pinus sylvestris, in Finnish Lapland, with an age of more than 810 years, has been regarded the oldest specimen of this species in the Nordic countries. However, a newspaper item from 1880 reports on a well-known huge pine tree which grew at the bank of Pyhäjoki River in northern...

The thesis addresses the hypothesis that leaf-hay (from trees) has been harvested on a large scale in Sweden, and has consequently significantly affected the vegetation. The use of leaf-fodder for the period c. 1800-1950 is analysed for Sweden and Åland Island. The main sources are ethnological...

Metal traces are analysed across tree stems to give a chronological record of atmospheric changes. Plasma spectrometry of annual growth rings is important in tracing air pollution history.

A review of the literature.

Gives an account of the method for calculating annual ring indices [see FA 16, 4405; 31, 1158], with discussion of the errors involved, and presents tables of ring indices for different regions of Sweden, based on all measured sample trees of Pinus sylvestris and Picea abies that had more than 58...

A study based on annual-ring series from living trees >400 years old, dead standing trees, and charred wood dated by fire scars as deriving from ancient living the- oldest from ca. 1150 A.D. The series established runs from 1181 to 1960. The investigation included charting reproduction of Pine at...

Increment cores were taken from 2079 Pines and 2658 Spruce in, respectively, 131 and 199 sample plots in N. Sweden laid out in unthinned stands. Mean annual-ring widths were calculated from at least 10 representative sample trees of the species per plot and the values for each calendar year from...

The material examined came from 908 sample trees from the district between 62° and 64° N, and covers the period 1900-1944. On 460 sample trees early and late wood were measured separately. Annual ring indexes [cf. F.A. 16 No. 4405] were constructed for the whole material, with separate early- and...