Regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce
Abstract Aim In boreal ecosystems, phenological events display seasonal patterns. These patterns allow for the development of tissues during the short time window available for growth in cold climates. Primary and secondary growth, two expensive processes for plants, are supposedly modulated in time...
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Online Access: | http://dx.doi.org/10.1111/geb.13340 https://onlinelibrary.wiley.com/doi/pdf/10.1111/geb.13340 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/geb.13340 |
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crwiley:10.1111/geb.13340 2024-09-15T18:38:07+00:00 Regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce Buttò, Valentina Khare, Siddhartha Drolet, Guillaume Sylvain, Jean‐Daniel Gennaretti, Fabio Deslauriers, Annie Morin, Hubert Rossi, Sergio Poulter, Benjamin Canada Foundation for Innovation Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada Ministère des Forêts, de la Faune et des Parcs 2021 http://dx.doi.org/10.1111/geb.13340 https://onlinelibrary.wiley.com/doi/pdf/10.1111/geb.13340 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/geb.13340 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Ecology and Biogeography volume 30, issue 8, page 1657-1670 ISSN 1466-822X 1466-8238 journal-article 2021 crwiley https://doi.org/10.1111/geb.13340 2024-08-13T04:15:54Z Abstract Aim In boreal ecosystems, phenological events display seasonal patterns. These patterns allow for the development of tissues during the short time window available for growth in cold climates. Primary and secondary growth, two expensive processes for plants, are supposedly modulated in time to optimize allocation of carbon to bud and woody tissues. We aimed to assess the phenology of primary and secondary meristems, testing their relationship over the closed black spruce stands of the commercially exploited forest region in Quebec, Canada. Location Quebec, Canada. Time period 2002–2016. Major taxa studied Gymnospermae. Methods We combined weekly scaled field observations with Moderate Resolution Imaging Spectroradiometer (MODIS) time series of the normalized difference vegetation index (NDVI) to extract timings of photosynthesis and meristem growth in five black spruce [ Picea mariana (Mill.) B.S.P.] stands located along a latitudinal gradient and to assess their relationship. We then tested empirical models based on geographical position and seasonal temperatures to predict wood phenology (i.e., the onset and ending of earlywood and latewood formation), and compared its spatial patterns with existing predictions of bud phenology for the same study area. Results Photosynthesis started at the beginning of May, 3 weeks before bud reactivation and the onset of wood growth. Latewood formation started in mid‐July, after shoot elongation was completed. For wood phenology models, the residual standard error ranged from 1 week to 12 days. Growth dynamics spatialized across the boreal forest of Quebec varied with the transition between the subarctic and humid continental climate. Main conclusions Shoot elongation and latewood formation were temporally separated, providing evidence of a trade‐off in structural carbon allocation between primary and secondary growth in trees. Spatial patterns of wood phenology predicted for the black spruce polygons are consistent with spatial patterns of bud phenology, ... Article in Journal/Newspaper Subarctic Wiley Online Library Global Ecology and Biogeography 30 8 1657 1670 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Aim In boreal ecosystems, phenological events display seasonal patterns. These patterns allow for the development of tissues during the short time window available for growth in cold climates. Primary and secondary growth, two expensive processes for plants, are supposedly modulated in time to optimize allocation of carbon to bud and woody tissues. We aimed to assess the phenology of primary and secondary meristems, testing their relationship over the closed black spruce stands of the commercially exploited forest region in Quebec, Canada. Location Quebec, Canada. Time period 2002–2016. Major taxa studied Gymnospermae. Methods We combined weekly scaled field observations with Moderate Resolution Imaging Spectroradiometer (MODIS) time series of the normalized difference vegetation index (NDVI) to extract timings of photosynthesis and meristem growth in five black spruce [ Picea mariana (Mill.) B.S.P.] stands located along a latitudinal gradient and to assess their relationship. We then tested empirical models based on geographical position and seasonal temperatures to predict wood phenology (i.e., the onset and ending of earlywood and latewood formation), and compared its spatial patterns with existing predictions of bud phenology for the same study area. Results Photosynthesis started at the beginning of May, 3 weeks before bud reactivation and the onset of wood growth. Latewood formation started in mid‐July, after shoot elongation was completed. For wood phenology models, the residual standard error ranged from 1 week to 12 days. Growth dynamics spatialized across the boreal forest of Quebec varied with the transition between the subarctic and humid continental climate. Main conclusions Shoot elongation and latewood formation were temporally separated, providing evidence of a trade‐off in structural carbon allocation between primary and secondary growth in trees. Spatial patterns of wood phenology predicted for the black spruce polygons are consistent with spatial patterns of bud phenology, ... |
author2 |
Poulter, Benjamin Canada Foundation for Innovation Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada Ministère des Forêts, de la Faune et des Parcs |
format |
Article in Journal/Newspaper |
author |
Buttò, Valentina Khare, Siddhartha Drolet, Guillaume Sylvain, Jean‐Daniel Gennaretti, Fabio Deslauriers, Annie Morin, Hubert Rossi, Sergio |
spellingShingle |
Buttò, Valentina Khare, Siddhartha Drolet, Guillaume Sylvain, Jean‐Daniel Gennaretti, Fabio Deslauriers, Annie Morin, Hubert Rossi, Sergio Regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce |
author_facet |
Buttò, Valentina Khare, Siddhartha Drolet, Guillaume Sylvain, Jean‐Daniel Gennaretti, Fabio Deslauriers, Annie Morin, Hubert Rossi, Sergio |
author_sort |
Buttò, Valentina |
title |
Regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce |
title_short |
Regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce |
title_full |
Regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce |
title_fullStr |
Regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce |
title_full_unstemmed |
Regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce |
title_sort |
regionwide temporal gradients of carbon allocation allow for shoot growth and latewood formation in boreal black spruce |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/geb.13340 https://onlinelibrary.wiley.com/doi/pdf/10.1111/geb.13340 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/geb.13340 |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
Global Ecology and Biogeography volume 30, issue 8, page 1657-1670 ISSN 1466-822X 1466-8238 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/geb.13340 |
container_title |
Global Ecology and Biogeography |
container_volume |
30 |
container_issue |
8 |
container_start_page |
1657 |
op_container_end_page |
1670 |
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1810482439389184000 |