Siberian spruce tree ring anatomy: imprint of development processes and their high-temporal environmental regulation

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.1016/j.dendro.2018.12.003

Ключевые слова: Picea, Picea obovata, altitudinal gradient, cell chronology, climate–growth relationship, digital wood anatomy, Picea obovata, tracheidogram

Аннотация: Wood anatomy was offered as spatiotemporal proxy record for tracheid differentiation kinetics due to its advantages in terms of much longer cover period and less demanding measurements. In this study, external and internal regulation of earlywood-to-latewood transition and properties of latewood of Picea obovata Ledeb were considered. The values and interrelations between cell number, tree ring width, maximal and mean radial cell diameter, maximal cell wall thickness and position of the transition to thick-walled tracheids were investigated within site and along the altitudinal gradient. Correlations with moving 21-day climatic series were used to estimate high-resolutional external influences. Relationships between tree ring traits are spatially stable and close within one stage of differentiation and between cells production and expansion. Relationships between sites differ in upper and lower parts of the gradient. Most of traits respond to the primary limiting factors near summer solstice; however, maximal cell wall thickness responds positively to the temperatures at the + 10 °C threshold. Altitudinal anatomical patterns revealed interaction of intrinsic and external factors in the regulation of tracheid differentiation. Timing of climatic response highlighted role of photoperiod as a trigger in the earlywood-to-latewood transition, and crucial role of the growth season ending for latewood development. © 2018 Elsevier GmbH

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Издание

Журнал: Dendrochronologia

Выпуск журнала: Vol. 53

Номера страниц: 114-124

ISSN журнала: 11257865

Издатель: Elsevier GmbH

Авторы

  • Babushkina Elena A. (Siberian Fed Univ, Khakass Tech Inst, 27 Shchetinkina, Abakan 655017, Russia)
  • Belokopytova Liliana V. (Siberian Fed Univ, Khakass Tech Inst, 27 Shchetinkina, Abakan 655017, Russia)
  • Zhirnova Dina F. (Siberian Fed Univ, Khakass Tech Inst, 27 Shchetinkina, Abakan 655017, Russia)
  • Vaganov Eugene A. (Siberian Fed Univ, 79 Svobodny, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, 50-28 Akademgorodok, Krasnoyarsk 660036, RussiaArticle)

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