Consistent time allocation fraction to vegetation green-up versus senescence across northern ecosystems despite recent climate change
(2024) In Science Advances 10(23).- Abstract
Extended growing season lengths under climatic warming suggest increased time for plant growth. However, research has focused on climatic impacts to the timing or duration of distinct phenological events. Comparatively little is known about impacts to the relative time allocation to distinct phenological events, for example, the proportion of time dedicated to leaf growth versus senescence. We use multiple satellite and ground-based observations to show that, despite recent climate change during 2001 to 2020, the ratio of time allocated to vegetation green-up over senescence has remained stable [1.27 (± 0.92)] across more than 83% of northern ecosystems. This stability is independent of changes in growing season lengths and is caused by... (More)
Extended growing season lengths under climatic warming suggest increased time for plant growth. However, research has focused on climatic impacts to the timing or duration of distinct phenological events. Comparatively little is known about impacts to the relative time allocation to distinct phenological events, for example, the proportion of time dedicated to leaf growth versus senescence. We use multiple satellite and ground-based observations to show that, despite recent climate change during 2001 to 2020, the ratio of time allocated to vegetation green-up over senescence has remained stable [1.27 (± 0.92)] across more than 83% of northern ecosystems. This stability is independent of changes in growing season lengths and is caused by widespread positive relationships among vegetation phenological events; longer vegetation green-up results in longer vegetation senescence. These empirical observations were also partly reproduced by 13 dynamic global vegetation models. Our work demonstrates an intrinsic biotic control to vegetation phenology that could explain the timing of vegetation senescence under climate change.
(Less)
- author
- organization
- publishing date
- 2024-06
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Science Advances
- volume
- 10
- issue
- 23
- article number
- eadn2487
- publisher
- American Association for the Advancement of Science (AAAS)
- external identifiers
-
- pmid:38848369
- scopus:85195534165
- ISSN
- 2375-2548
- DOI
- 10.1126/sciadv.adn2487
- language
- English
- LU publication?
- yes
- id
- bc3c53e0-0c7f-4344-8dd1-d09e8d56cd6d
- date added to LUP
- 2024-08-14 14:58:10
- date last changed
- 2024-08-14 14:58:29
@article{bc3c53e0-0c7f-4344-8dd1-d09e8d56cd6d, abstract = {{<p>Extended growing season lengths under climatic warming suggest increased time for plant growth. However, research has focused on climatic impacts to the timing or duration of distinct phenological events. Comparatively little is known about impacts to the relative time allocation to distinct phenological events, for example, the proportion of time dedicated to leaf growth versus senescence. We use multiple satellite and ground-based observations to show that, despite recent climate change during 2001 to 2020, the ratio of time allocated to vegetation green-up over senescence has remained stable [1.27 (± 0.92)] across more than 83% of northern ecosystems. This stability is independent of changes in growing season lengths and is caused by widespread positive relationships among vegetation phenological events; longer vegetation green-up results in longer vegetation senescence. These empirical observations were also partly reproduced by 13 dynamic global vegetation models. Our work demonstrates an intrinsic biotic control to vegetation phenology that could explain the timing of vegetation senescence under climate change.</p>}}, author = {{Meng, Fandong and Felton, Andrew J. and Mao, Jiafu and Cong, Nan and Smith, William K. and Körner, Christian and Hu, Zhongmin and Hong, Songbai and Knott, Jonathan and Yan, Yanzi and Guo, Bixi and Deng, Ying and Leisz, Stephen and Dorji, Tsechoe and Wang, Shiping and Chen, Anping}}, issn = {{2375-2548}}, language = {{eng}}, number = {{23}}, publisher = {{American Association for the Advancement of Science (AAAS)}}, series = {{Science Advances}}, title = {{Consistent time allocation fraction to vegetation green-up versus senescence across northern ecosystems despite recent climate change}}, url = {{http://dx.doi.org/10.1126/sciadv.adn2487}}, doi = {{10.1126/sciadv.adn2487}}, volume = {{10}}, year = {{2024}}, }