Temperature and photoperiod interactions influence the cessation of wood growth in three temperate and boreal conifers

作者：Jianhong Lin, Cyrille B.K. Rathgeber, Patrick Fonti, Sergio Rossi, Henri Cuny, Edurne Martinez Del Castillo, Katarina Čufar, J. Julio Camarero, Alessio Giovannelli, Harri Mäkinen, Peter Prislan, Walter Oberhuber, Hanuš Vavrčík, Jianguo Huang, Andreas Gruber, Vladimír Gryc, Václav Treml, Martín Martin De Luis, Jožica Gričar, Nicolas Delpierre · 发表于：Agricultural and Forest Meteorology · 年份：2026 · DOI：10.1016/j.agrformet.2026.111056 · 被引用次数：1 · 研究领域：Tree-ring climate responses、Plant Water Relations and Carbon Dynamics、Wood Treatment and Properties

• Developed ecophysiological models for predicting wood growth cessation in conifers. • Temperature and photoperiod jointly regulate wood growth cessation across species. • Soil moisture showed limited added value in improving model performance. • Historical reconstructions show delayed cE, especially at low latitudes and elevations. Cambium phenology is a crucial process in wood production and carbon sequestration of forest ecosystems. Although cambium phenology has been widely studied, research specifically focusing on the cessation of wood formation remains limited. To better understand the influence of environmental and intrinsic factors on the cessation of wood formation, we built and compared three ecophysiological models ( temperature sum model, photoperiod-influenced temperature sum model and soil moisture- and photoperiod-influenced temperature sum model) in their ability to predict the date of cessation of xylem cell enlargement (cE) in three major Northern Hemisphere conifer species (Black spruce, Norway spruce and Scots pine). We developed these models based on xylogenesis data collected for 130 site‐years across Europe and Canada. Our results demonstrate that the photoperiod-influenced temperature sum model is well-supported by data across all conifer species, with a RMSE of 9.2 days, suggesting that both temperature and photoperiod are critical drivers of wood growth cessation. However, incorporating soil moisture effects does not improve model performance. Our ...