从北方针叶树到半干旱针叶树，生长速度超过了生长季延长带来的益处
Growth rate overrides the benefit of extended growing season from boreal to semiarid conifers
Antoine Cabon · Patrick Fonti · Georg von Arx · Franco Biondi · J. Julio Camarero · Filipe Campelo · Marco Carrer · Katarina Čufar · Henri Cuny · Annie Deslauriers · Marek Fajstavr · Marina Fonti · David Frank · Alessio Giovannelli · Andreas Gruber · Jožica Gričar · Vladimír Gryc · Aylin Güney · Minhui He · Petr Horáček · Jianguo Huang · Malcolm Hughes · Yuan Jiang · Hans-Peter Kahle · Gregory King · Alexander V. Kirdyanov · Elena Larysch · Xiaoxia Li · Eryuan Liang · Martín de Luis · Harri Mäkinen · Edurne Martínez del Castillo · Sergei Mikhailov · Tobias Walter Miller · Kiyomi Morino · Cristina Nabais · Walter Oberhuber · Momchil Panayotov · Richard L. Peters · Peter Prislan · Sergio Rossi · Seyedehmasoumeh Saderi · Antonio Saracino · Luigi Saulino · Roberto Silvestro · Thomas Seifert · Anne Sophie Sergent · Dominik Florian Stangler · Marko Stojanović · Vaclav Treml · Hanuš Vavrčík · Joana Vieira · Wenjin Wang · Gerhard Wieser · Bao Yang · Yiping Zhang · Emanuele Ziaco · Cyrille B. K. Rathgeber
1. 信息
期刊Science
类型Article
发表2026-09-10
卷期页393(6816): 1101-1106
收录2026-10-13
被浏览…
关键词growing season lengthglobal warmingboreal forestsemi-arid forestsforest carbon sequestrationoptimal temperature
2. 摘要
气候变暖延长了温带森林的生产季节。然而，目前尚无确凿证据表明这是否会促进树木生长和森林碳固存。本研究利用从北方森林到半干旱森林的针叶树木材形成细胞观测数据，量化了形成层生长速率与生长季节长度在驱动年度细胞产量（木材生长的关键过程）中的相对重要性。我们发现，生长速率是年度细胞产量的主要驱动因素。此外，虽然生长季节随年平均气温的升高而延长，但生长速率在 100-16°C 时达到最佳值，超过该温度后，日益干旱的环境会抑制木材产量的增加。因此，气候变暖对年内生长动态的负面影响可能会在很大程度上抵消生长季节延长对未来森林碳储存的益处。
原文摘要（English）
Climate warming lengthens the productive season in extratropical forests. Yet there is inconclusive evidence on whether this in turn elicits enhanced tree growth and forest carbon sequestration. In this study, we used cellular observations of conifer wood formation spanning boreal to semiarid forests to quantify the relative importance of cambial growth rate versus season length in driving annual cell production, the key process underlying woody growth. We found that rate is the primary driver of annual cell production. Furthermore, whereas the growing season lengthens with annual temperature, growth rate exhibited an optimum at ~6°C, beyond which increasingly dry conditions compromise wood production gains. The negative impact of warming on intra-annual growth dynamics can thus largely offset the benefit of longer growing season on future forest carbon storage.
3. 图表
4. 引用
查看 BibTeX
@article{cabon2026,
author = {Antoine Cabon and Patrick Fonti and Georg von Arx and Franco Biondi and J. Julio Camarero and Filipe Campelo and Marco Carrer and Katarina Čufar and Henri Cuny and Annie Deslauriers and Marek Fajstavr and Marina Fonti and David Frank and Alessio Giovannelli and Andreas Gruber and Jožica Gričar and Vladimír Gryc and Aylin Güney and Minhui He and Petr Horáček and Jianguo Huang and Malcolm Hughes and Yuan Jiang and Hans-Peter Kahle and Gregory King and Alexander V. Kirdyanov and Elena Larysch and Xiaoxia Li and Eryuan Liang and Martín de Luis and Harri Mäkinen and Edurne Martínez del Castillo and Sergei Mikhailov and Tobias Walter Miller and Kiyomi Morino and Cristina Nabais and Walter Oberhuber and Momchil Panayotov and Richard L. Peters and Peter Prislan and Sergio Rossi and Seyedehmasoumeh Saderi and Antonio Saracino and Luigi Saulino and Roberto Silvestro and Thomas Seifert and Anne Sophie Sergent and Dominik Florian Stangler and Marko Stojanović and Vaclav Treml and Hanuš Vavrčík and Joana Vieira and Wenjin Wang and Gerhard Wieser and Bao Yang and Yiping Zhang and Emanuele Ziaco and Cyrille B. K. Rathgeber},
title = {Growth rate overrides the benefit of extended growing season from boreal to semiarid conifers},
journal = {Science},
year = {2026},
volume = {393},
number = {6816},
pages = {1101-1106},
doi = {10.1126/science.aec8866},
publisher = {American Association for the Advancement of Science (AAAS)},
}· END ·