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Fennoscandian summers from ad 500: temperature changes on short and long timescales
Quantitative estimates of 1480 years of summer temperatures in northern Fennoscandia have previously been derived from continuous treering records from northern Sweden. Here we show the results of… Expand
A 1,400-year tree-ring record of summer temperatures in Fennoscandia
Tree-ring data have been used to reconstruct the mean summer (April-August) temperature of northern Fennoscandia for each year from AD 500 to the present. Summer temperatures have fluctuated markedly… Expand
Climatic signal of earlywood vessels of oak on a maritime site.
There was a strong dependence of earlywood vessel lumen area on rainfall between February and April, which reflects the role of water availability in vessel ontogeny and can be used as a proxy to reconstruct spring precipitation beyond the archived weather records. Expand
Studying global change through investigation of the plastic responses of xylem anatomy in tree rings.
It is believed that the study of tree-ring anatomy is emerging as a promising approach in tree biology and climate change research, particularly if complemented by physiological and ecological studies. Expand
Identification, presentation and interpretation of event years and pointer years in dendrochronology.
Topography- and species-dependent growth responses of Sabina przewalskii and Picea crassifolia to climate on the northeast Tibetan Plateau
Dendroecological techniques were used to examine the relationships between topographic aspects, climatic variation and radial growth of Qilian juniper (Sabina przewalskii Kom.) and Qinghai spruce… Expand
The variability of vessel size in beech (Fagus sylvatica L.) and its ecophysiological interpretation
It is evident that vessel formation at the beginning of cambial activity is mainly controlled by internal factors, while vessel formation towards the end of the cambia is strongly influenced by the July rainfall and is thus determined to a greater degree by external factors. Expand
Cambium dynamics of Pinus sylvestris and Betula spp. in the northern boreal forest in Finland
Wood formation dynamics of pine and birch along a south-north transect in Finnish Lapland were determined by the pinning technique with a more or less sigmoid shape with the intensity of wood formation was highest in July, in pine within two weeks in the middle of July. Expand
Little change in the fir tree-line position on the southeastern Tibetan Plateau after 200 years of warming.
The warming in the past 200 yr is already having a significant impact on the population density of the trees, but not on the position of the Smith fir tree line, despite warming on the Tibetan Plateau. Expand
Multiproxy dendroclimatology: a pilot study in northern Finland
Ten potential proxy measures of past climate were recovered from Scots pine (Pinus sylvestris) at three sites on a latitudinal transect close to the pine limit in northern Finland (earlywood,… Expand