Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2013

Идентификатор DOI: 10.1111/nph.12113

Ключевые слова: CLIMATE, DENDROCHRONOLOGIA, TREE-RING ANATOMY

Аннотация: Tree-ring anatomy reflects the year-by-year impact of environmental factors on tree growth. Up to now, research in this field has mainly focused on the hydraulic architecture, with ray parenchyma neglected despite the growing recognition of its relevance for xylem function. Our aim was to address this gap by exploring the potential of the annual patterns of xylem parenchyma as a climate proxy. We constructed ring-width and ray-parenchyma chronologies from 1965 to 2004 for 20 Juniperus thurifera trees growing in a Mediterranean continental climate. Chronologies were related to climate records by means of correlation, multiple regression and partial correlation analyses. Ray parenchyma responded to climatic conditions at critical stages during the xylogenetic process; namely, at the end of the previous year's xylogenesis (October) and at the onset of earlywood (May) and latewood formation (August). Ray parenchyma-based chronologies have potential to complement ring-width chronologies as a tool for climate reconstructions. Furthermore, medium- and low-frequency signals in the variation of ray parenchyma may improve our understanding of how trees respond to environmental fluctuations and to global change.

Журнал: New Phytologist

Номера страниц: 486-495

ISSN журнала: 14698137

Место издания: New York

Издатель: Wiley

• Olano J. M. (Departamento de Ciencias Agroforestales, EU de Ingenierías Agrarias, Universidad de Valladolid, Los Pajaritos s/n, Soria, E-42004, Spain)
• Arzac Alberto (Siberian Fed Univ, Sch Ecol & Geog, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
• García-Cervigón A.I. (Departamento de Ciencias Agroforestales, EU de Ingenierías Agrarias, Universidad de Valladolid, Los Pajaritos s/n, Soria, E-42004, Spain)
• von Arx G. (Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Switzerland)
• Rozas Vicente (IuFOR Univ Valladolid, EU Ingn Agr, Dept Ciencias Agroforestales, Area Bot, Soria 42004, Spain)

• Scopus
• Web of Science Core Collection