Did the late spring frost in 2007 and 2011 affect tree-ring width and earlywood vessel size in Pedunculate oak (Quercus robur) in northern Poland?

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• 作者：Radosław Puchałka ; Marcin Koprowski…
• 刊名：International Journal of Biometeorology
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：60
• 期：8
• 页码：1143-1150
• 全文大小：1,061 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Life Sciences
  Animal Physiology
  Plant Physiology
  Environmental Medicine/Environmental Psychology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1254
• 卷排序：60

文摘

Trees are sensitive to extreme weather and environmental conditions. This sensitivity is visible in tree-ring widths and cell structure. In our study, we hypothesized that the sudden frost noted at the beginning of May in both 2007 and 2011 affected cambial activity and, consequently, the number and size of vessels in the tree rings. It was decided to test this hypothesis after damage to leaves was observed. The applied response function model did not show any significant relationships between spring temperature and growth. However, this method uses average values for long periods and sometimes misses the short-term effects. This is why we decided to study each ring separately, comparing them with rings unaffected by the late frost. Our study showed that the short-term effect of sudden frost in late spring did not affect tree rings and selected cell parameters. The most likely reasons for this are (i) cambial activity producing the earlywood vessels before the occurrence of the observed leaf damage, (ii) the forest micro-climate protecting the trees from the harsh frost and (iii) the temperature decline being too short-lived an event to affect the oaks. On the other hand, the visible damage may be occasional and not affect cambium activity and tree vitality at all. We conclude that oak is well-adapted to this phenomenon.KeywordsDendroecologyDendroanatomyPedunculate oakLate spring frost