Warming enhances dominance of vascular plants over cryptogams across northern wetlands
Abstract Climate warming causes profound effects on structure and function of wetland ecosystem, thus affecting regional and global hydrological cycles and carbon budgets. However, how wetland plants respond to warming is still poorly understood. Here, we synthesized observations from 273 independen...
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crwiley:10.1111/gcb.16182 2024-06-23T07:56:08+00:00 Warming enhances dominance of vascular plants over cryptogams across northern wetlands Bao, Tao Jia, Gensuo Xu, Xiyan National Natural Science Foundation of China 2022 http://dx.doi.org/10.1111/gcb.16182 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.16182 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.16182 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 28, issue 13, page 4097-4109 ISSN 1354-1013 1365-2486 journal-article 2022 crwiley https://doi.org/10.1111/gcb.16182 2024-06-11T04:49:39Z Abstract Climate warming causes profound effects on structure and function of wetland ecosystem, thus affecting regional and global hydrological cycles and carbon budgets. However, how wetland plants respond to warming is still poorly understood. Here, we synthesized observations from 273 independent sites to explore responses of northern wetland plants to warming. Our results show that warming enhances biomass accumulation for vascular plants including shrubs and graminoids, whereas it reduces biomass accumulation for cryptogams including moss and lichen. This divergent response of vascular plants and cryptogams is particularly pronounced in the high latitudes where permafrost prevails. As warming continues, this divergent response is amplified, however, the reduction in cryptogams is more drastic. Warming leads to declined surface soil moisture and lowered water table, thereby shifting wetlands from a wet system dominated by cryptogams to a drier system with increased cover of vascular plants. Under a high‐emission scenario of Shared Socioeconomic Pathways (SSP5), a 4.7–5.1°C mean global temperature rise will cause more than fivefold loss of cryptogams compared with current climate. As cryptogams are largely concentrated at northern high latitudes, where warming will likely be greater than the projected global mean, modification in wetland plant composition and major reduction in cryptogams are expected to occur even much earlier than 2100. Article in Journal/Newspaper permafrost Wiley Online Library Global Change Biology 28 13 4097 4109 |
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English |
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Abstract Climate warming causes profound effects on structure and function of wetland ecosystem, thus affecting regional and global hydrological cycles and carbon budgets. However, how wetland plants respond to warming is still poorly understood. Here, we synthesized observations from 273 independent sites to explore responses of northern wetland plants to warming. Our results show that warming enhances biomass accumulation for vascular plants including shrubs and graminoids, whereas it reduces biomass accumulation for cryptogams including moss and lichen. This divergent response of vascular plants and cryptogams is particularly pronounced in the high latitudes where permafrost prevails. As warming continues, this divergent response is amplified, however, the reduction in cryptogams is more drastic. Warming leads to declined surface soil moisture and lowered water table, thereby shifting wetlands from a wet system dominated by cryptogams to a drier system with increased cover of vascular plants. Under a high‐emission scenario of Shared Socioeconomic Pathways (SSP5), a 4.7–5.1°C mean global temperature rise will cause more than fivefold loss of cryptogams compared with current climate. As cryptogams are largely concentrated at northern high latitudes, where warming will likely be greater than the projected global mean, modification in wetland plant composition and major reduction in cryptogams are expected to occur even much earlier than 2100. |
author2 |
National Natural Science Foundation of China |
format |
Article in Journal/Newspaper |
author |
Bao, Tao Jia, Gensuo Xu, Xiyan |
spellingShingle |
Bao, Tao Jia, Gensuo Xu, Xiyan Warming enhances dominance of vascular plants over cryptogams across northern wetlands |
author_facet |
Bao, Tao Jia, Gensuo Xu, Xiyan |
author_sort |
Bao, Tao |
title |
Warming enhances dominance of vascular plants over cryptogams across northern wetlands |
title_short |
Warming enhances dominance of vascular plants over cryptogams across northern wetlands |
title_full |
Warming enhances dominance of vascular plants over cryptogams across northern wetlands |
title_fullStr |
Warming enhances dominance of vascular plants over cryptogams across northern wetlands |
title_full_unstemmed |
Warming enhances dominance of vascular plants over cryptogams across northern wetlands |
title_sort |
warming enhances dominance of vascular plants over cryptogams across northern wetlands |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1111/gcb.16182 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.16182 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/gcb.16182 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Global Change Biology volume 28, issue 13, page 4097-4109 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.16182 |
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Global Change Biology |
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28 |
container_issue |
13 |
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4097 |
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4109 |
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1802649032315633664 |