Dendrochronological data

Abstract

This chapter presents a summary of the results of climate reconstruction for Poland based on dendrochronological data. Dendroclimatological research has been carried out in Poland for over 60 years. As a result, there are numerous chronologies available for both native and naturalised species which form a basis for further research. These are summarised in Table 7.1. Reliable reconstructions can only be produced for the months where the relationships are seen to be statistically significant. Temperature and rainfall reconstructions from Scots pine tree-ring series were produced for the Kuyavia and Pomerania regions of Poland (Figs. 7.5 and 7.6). The highest correlations between temperature and growth were found in February and March, and those for rainfall occurred in June and July. The reconstruction data suggest periods when the winter/spring temperature was warmer than normal in 1180-1200, 1240-1270, 1340-1360, 1430-1490, 1530-1590, 1660-1680, 1820-1850, 1910-1940 and from 1985. In contrast, cooler winter/spring periods occurred in: 1290-1310, 1400-1420, 1500-1510, 1600-1650, 1750-1770, 1800-1810, 1880-1900, and 1900-1980. The coldest winter/spring periods were the first decade of the fourteenth century, the last decades of the fifteen century and at the beginning of sixteen century, as well as in the first decade of the nineteenth century. © Springer Science + Business Media B.V. 2010.