Revealing how intra- and inter-annual variability of carbon uptake (GPP) affects wood cell biomass in an eastern white pine forest
Forests are major terrestrial carbon (C) sinks and play a crucial role in climate change mitigation. Despite extensive studies on forest C sequestration, the relationship between seasonal C uptake and its allocation to woody biomass is poorly understood. Here we used a novel dendro-anatomical approa...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/acb2df |
| _version_ | 1827869617392975872 |
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| author | Paulina F Puchi Myroslava Khomik Davide Frigo M Altaf Arain Patrick Fonti Georg von Arx Daniele Castagneri |
| author_facet | Paulina F Puchi Myroslava Khomik Davide Frigo M Altaf Arain Patrick Fonti Georg von Arx Daniele Castagneri |
| author_sort | Paulina F Puchi |
| collection | DOAJ |
| description | Forests are major terrestrial carbon (C) sinks and play a crucial role in climate change mitigation. Despite extensive studies on forest C sequestration, the relationship between seasonal C uptake and its allocation to woody biomass is poorly understood. Here we used a novel dendro-anatomical approach to investigate the relationships between climate variability, C uptake, and woody biomass growth in an 80 year-old eastern white pine ( Pinus strobus ) plantation forest in Ontario, Canada. We used eddy covariance (EC) gross primary productivity (GPP) from 2003–2018 and woody biomass estimated from chronologies of cell wall area (CWA, a proxy for C storage in individual wood cells) and ring wall area (RWA) for earlywood (EW) and latewood (LW) from 1970–2018. Warm temperatures in early spring and high precipitation in mid-spring and summer positively and strongly affected GPP, while high temperature and high vapor pressure deficit in the summer had a negative effect. From 2003 to 2018, there was a steady increase in both GPP and woody cell biomass. Moreover, we found strong positive correlations between GPP and CWA both in EW (May—July GPP, r = 0.65) and LW (July—August GPP, r = 0.89). Strong positive correlations were also found between GPP and RWA both in EW and LW (April—September, r = ⩾ 0.79). All these associations were stronger than the association between annual GPP and tree-ring width ( r = 0.61) used in previous studies. By increasing the resolution of tree-ring analysis to xylem-cell level, we captured intra-annual variability in biomass accumulation. We demonstrated a strong control of seasonal C assimilation (source) over C accumulation in woody biomass at this site. Coupling high-resolution EC fluxes (GPP) and wood anatomical measurements can help to reduce existing uncertainties on C source-sink relationships, opening new perspectives in the study of the C cycle in forests. |
| first_indexed | 2024-03-12T15:46:39Z |
| format | Article |
| id | doaj.art-120071934a174d54b7a8007f8953a860 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T15:46:39Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-120071934a174d54b7a8007f8953a8602023-08-09T15:22:04ZengIOP PublishingEnvironmental Research Letters1748-93262023-01-0118202402710.1088/1748-9326/acb2dfRevealing how intra- and inter-annual variability of carbon uptake (GPP) affects wood cell biomass in an eastern white pine forestPaulina F Puchi0https://orcid.org/0000-0001-5429-8605Myroslava Khomik1https://orcid.org/0000-0002-0377-8833Davide Frigo2https://orcid.org/0000-0002-9095-1082M Altaf Arain3https://orcid.org/0000-0002-1433-5173Patrick Fonti4https://orcid.org/0000-0002-7070-3292Georg von Arx5https://orcid.org/0000-0002-8566-4599Daniele Castagneri6https://orcid.org/0000-0002-2092-7415Università degli Studi di Padova, Dipartimento Territorio e Sistemi Agro-Forestali (TESAF) , Via dell’Università 16, 35020 Legnaro, PD, Italy; Forest Modelling Laboratory, Institute for Agriculture and Forestry Systems in the Mediterranean, National Research Council of Italy (CNR-ISAFOM) , Via Madonna Alta 128, 06128 Perugia, ItalyUniversity of Waterloo, Department of Geography and Environmental Management , University Avenue West 200, N2L 3G1 Waterloo, ON, CanadaUniversità degli Studi di Padova, Dipartimento Territorio e Sistemi Agro-Forestali (TESAF) , Via dell’Università 16, 35020 Legnaro, PD, ItalyMcMaster University, School of Earth, Environment and Society and McMaster Centre for Climate Change , Main Street West 1280, L8S 4K1 Hamilton, ON, CanadaSwiss Federal Research Institute (WSL) , Zurcherstrasse 111, 8903 Birmensdorf, ZH), Switzerland; Oeschger Centre for Climate Change Research, University of Bern , Hochschulstrasse 4, CH-3012 Bern, SwitzerlandSwiss Federal Research Institute (WSL) , Zurcherstrasse 111, 8903 Birmensdorf, ZH), Switzerland; Oeschger Centre for Climate Change Research, University of Bern , Hochschulstrasse 4, CH-3012 Bern, SwitzerlandUniversità degli Studi di Padova, Dipartimento Territorio e Sistemi Agro-Forestali (TESAF) , Via dell’Università 16, 35020 Legnaro, PD, ItalyForests are major terrestrial carbon (C) sinks and play a crucial role in climate change mitigation. Despite extensive studies on forest C sequestration, the relationship between seasonal C uptake and its allocation to woody biomass is poorly understood. Here we used a novel dendro-anatomical approach to investigate the relationships between climate variability, C uptake, and woody biomass growth in an 80 year-old eastern white pine ( Pinus strobus ) plantation forest in Ontario, Canada. We used eddy covariance (EC) gross primary productivity (GPP) from 2003–2018 and woody biomass estimated from chronologies of cell wall area (CWA, a proxy for C storage in individual wood cells) and ring wall area (RWA) for earlywood (EW) and latewood (LW) from 1970–2018. Warm temperatures in early spring and high precipitation in mid-spring and summer positively and strongly affected GPP, while high temperature and high vapor pressure deficit in the summer had a negative effect. From 2003 to 2018, there was a steady increase in both GPP and woody cell biomass. Moreover, we found strong positive correlations between GPP and CWA both in EW (May—July GPP, r = 0.65) and LW (July—August GPP, r = 0.89). Strong positive correlations were also found between GPP and RWA both in EW and LW (April—September, r = ⩾ 0.79). All these associations were stronger than the association between annual GPP and tree-ring width ( r = 0.61) used in previous studies. By increasing the resolution of tree-ring analysis to xylem-cell level, we captured intra-annual variability in biomass accumulation. We demonstrated a strong control of seasonal C assimilation (source) over C accumulation in woody biomass at this site. Coupling high-resolution EC fluxes (GPP) and wood anatomical measurements can help to reduce existing uncertainties on C source-sink relationships, opening new perspectives in the study of the C cycle in forests.https://doi.org/10.1088/1748-9326/acb2dfcarbon uptakecell wall areaeddy covariancegross primary productivitytree ringswoody biomass |
| spellingShingle | Paulina F Puchi Myroslava Khomik Davide Frigo M Altaf Arain Patrick Fonti Georg von Arx Daniele Castagneri Revealing how intra- and inter-annual variability of carbon uptake (GPP) affects wood cell biomass in an eastern white pine forest Environmental Research Letters carbon uptake cell wall area eddy covariance gross primary productivity tree rings woody biomass |
| title | Revealing how intra- and inter-annual variability of carbon uptake (GPP) affects wood cell biomass in an eastern white pine forest |
| title_full | Revealing how intra- and inter-annual variability of carbon uptake (GPP) affects wood cell biomass in an eastern white pine forest |
| title_fullStr | Revealing how intra- and inter-annual variability of carbon uptake (GPP) affects wood cell biomass in an eastern white pine forest |
| title_full_unstemmed | Revealing how intra- and inter-annual variability of carbon uptake (GPP) affects wood cell biomass in an eastern white pine forest |
| title_short | Revealing how intra- and inter-annual variability of carbon uptake (GPP) affects wood cell biomass in an eastern white pine forest |
| title_sort | revealing how intra and inter annual variability of carbon uptake gpp affects wood cell biomass in an eastern white pine forest |
| topic | carbon uptake cell wall area eddy covariance gross primary productivity tree rings woody biomass |
| url | https://doi.org/10.1088/1748-9326/acb2df |
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