Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age
Abstract Northern forests (forests north of 30°N) are major terrestrial carbon dioxide (CO2) sinks, while rapid warming can disturb their CO2 sink function. Here we use multi-year net CO2 exchange observations from 65 northern forest sites to show that the increased net CO2 uptake during warmer spri...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Communications Earth & Environment |
| Online Access: | https://doi.org/10.1038/s43247-025-02008-7 |
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| author | Peng Liu Tianshan Zha T. Andrew Black Rachhpal S. Jassal Xin Jia Asko Noormets Andrew Ouimette Yun Tian Xinhao Li |
| author_facet | Peng Liu Tianshan Zha T. Andrew Black Rachhpal S. Jassal Xin Jia Asko Noormets Andrew Ouimette Yun Tian Xinhao Li |
| author_sort | Peng Liu |
| collection | DOAJ |
| description | Abstract Northern forests (forests north of 30°N) are major terrestrial carbon dioxide (CO2) sinks, while rapid warming can disturb their CO2 sink function. Here we use multi-year net CO2 exchange observations from 65 northern forest sites to show that the increased net CO2 uptake during warmer springs was more pronounced in old forests (>90 years old) compared to young (<40 years old) and mid-aged (40–90 years old) forests. In addition, the decreased net CO2 uptake during warmer summers and autumns was more pronounced in young forests compared to mid- and old-aged forests. Annually, this resulted in an increase in net CO2 uptake due to seasonal warming for old forests (4.8 g C m−2 yr-1) and a decrease in young- and mid-aged forests (3.2 and 0.8 g C m−2 yr-1, respectively). In future projections, increasingly uneven seasonal warming may amplify the impacts of stand age on CO2 sinks of northern forests. |
| format | Article |
| id | doaj-art-b29cfb974a1c4a49b9e6536ef90078ca |
| institution | Kabale University |
| issn | 2662-4435 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Earth & Environment |
| spelling | doaj-art-b29cfb974a1c4a49b9e6536ef90078ca2025-01-26T12:54:01ZengNature PortfolioCommunications Earth & Environment2662-44352025-01-01611910.1038/s43247-025-02008-7Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand agePeng Liu0Tianshan Zha1T. Andrew Black2Rachhpal S. Jassal3Xin Jia4Asko Noormets5Andrew Ouimette6Yun Tian7Xinhao Li8State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry UniversityState Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry UniversityBiometeorology and Soil Physics Group, University of British ColumbiaBiometeorology and Soil Physics Group, University of British ColumbiaState Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry UniversityDepartment of Ecology and Conservation Biology, Texas A&M UniversityUnited States of Department of Agriculture, Forest ServiceState Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry UniversityState Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry UniversityAbstract Northern forests (forests north of 30°N) are major terrestrial carbon dioxide (CO2) sinks, while rapid warming can disturb their CO2 sink function. Here we use multi-year net CO2 exchange observations from 65 northern forest sites to show that the increased net CO2 uptake during warmer springs was more pronounced in old forests (>90 years old) compared to young (<40 years old) and mid-aged (40–90 years old) forests. In addition, the decreased net CO2 uptake during warmer summers and autumns was more pronounced in young forests compared to mid- and old-aged forests. Annually, this resulted in an increase in net CO2 uptake due to seasonal warming for old forests (4.8 g C m−2 yr-1) and a decrease in young- and mid-aged forests (3.2 and 0.8 g C m−2 yr-1, respectively). In future projections, increasingly uneven seasonal warming may amplify the impacts of stand age on CO2 sinks of northern forests.https://doi.org/10.1038/s43247-025-02008-7 |
| spellingShingle | Peng Liu Tianshan Zha T. Andrew Black Rachhpal S. Jassal Xin Jia Asko Noormets Andrew Ouimette Yun Tian Xinhao Li Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age Communications Earth & Environment |
| title | Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age |
| title_full | Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age |
| title_fullStr | Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age |
| title_full_unstemmed | Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age |
| title_short | Seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age |
| title_sort | seasonal warming responses of the carbon dioxide sink from northern forests are sensitive to stand age |
| url | https://doi.org/10.1038/s43247-025-02008-7 |
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