ArticleProceedings of the National Academy of Sciences of the United States of America2026
Key role of moss in supplementing nitrogen for plant growth under warming in a permafrost ecosystem.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Nonuniform temperature and light relationships of moss-associated nitrogen fixation across climates.The New phytologist · 2026Article
- Moss Cover Redirects Soil Organic Carbon from Active Turnover to Mineral-Associated Stabilization in Subalpine Forests.Plants (Basel, Switzerland) · 2026Article
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Authors and funding
10 authors.
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Abstract
Enhanced plant productivity under climate warming may partially offset soil carbon losses in cold ecosystems, but this compensation depends on whether soil nitrogen (N) supply can keep pace with the increased N demand associated with accelerated plant growth. However, it remains unclear whether existing soil N supply processes are sufficient to support this rising plant N demand. Based on a unique whole-ecosystem warming experiment in the permafrost region on the Tibetan Plateau, we assess 43 variables encompassing plant N demand and soil N supply. After 2 y of warming, plant N demand significantly increases, while leaf N resorption remains unchanged, indicating a heightened reliance on external soil N inputs. Among all quantified N-supply processes, moss-associated biological N fixation is the only process that responds positively to warming, providing partial compensation for the elevated plant N demand over the two experimental years. This enhancement is associated with warming-driven changes in moss functional traits that likely expand colonization niches and increase carbon availability for diazotrophs, coupled with a warming-induced increase in the breadth and intensity of taxon-level
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