The global extent of the grassland biome and implications for the terrestrial carbon sink
文献类型：期刊论文
| 作者 | Macdougall, A. S.3; Vanzant, B.3; Sulik, J.4; Bagchi, S.5; Naidu, D.5,6; Muraina, T. O.7,8; Seabloom, E. W.9; Borer, E. T.9; Wilfahrt, P.9; Slette, I.9 |
| 刊名 | NATURE ECOLOGY & EVOLUTION
 |
| 出版日期 | 2026-01-27 |
| 卷号 | N/A |
| ISSN号 | 2397-334X |
| DOI | 10.1038/s41559-025-02955-6 |
| 产权排序 | 100 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Land cover data are commonly used to model the terrestrial carbon (C) sink, yet these data have wide margins of error that significantly alter estimates of global C storage. Here we demonstrate this data vulnerability in grasslands, which are critical to C cycling but whose estimated distribution has varied by >50 million km(2) (3.5-42% of the Earth's terrestrial surface). Comparing multiple high-resolution land cover products with expertly annotated grassland data from six continents, we show sources of mapping error and discuss C implications based on 2023 United Nations (UN) FAO estimates. Past misidentification arose from inconsistent definitions on grassland identity and classification flaws especially relating to woody plant cover. Correcting these errors adjusted grassland coverage to 22.8% of the terrestrial land base (30.1 million km(2)), elevating UN projections of soil C stocks to 155.02 Pg (0-30 cm depth). These findings underscore the challenges of biome mapping for ecosystem accounting and policy, when lacking field-validated remotely sensed data. |
| URL标识 | 查看原文 |
| WOS关键词 | CLIMATE ; SEQUESTRATION ; IMPACTS ; ECOLOGY |
| WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001672838600001 |
| 出版者 | NATURE PORTFOLIO |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/220919]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Macdougall, A. S.; Siewert, M. B. |
| 作者单位 | 1.Univ Texas Austin, Austin, TX USA; 2.Trinity Coll Dublin, Sch Nat Sci, Coctr Climate Biodivers Water, Dublin, Ireland; 3.Univ Guelph, Dept Integrat Biol, Guelph, ON, Canada; 4.Univ Guelph, Dept Plant Agr, Guelph, ON, Canada; 5.Indian Inst Sci, Ctr Ecol Sci, Bengaluru, India; 6.Indian Inst Human Settlements, Sch Environm & Sustainabil, Bengaluru, India; 7.Oyo State Coll Agr & Technol, Dept Anim Hlth & Prod, Igbo Ora, Oyo State, Nigeria; 8.Texas State Univ, Dept Biol, San Marcos, TX USA; 9.Univ Minnesota, Dept Ecol Evolut & Behav, St Paul, MN USA; 10.Univ Nacl La Pampa UNLPam, Fac Ciencias Exactas & Nat, Santa Rosa, La Pampa, Argentina; |
| 推荐引用方式 GB/T 7714 | Macdougall, A. S.,Vanzant, B.,Sulik, J.,et al. The global extent of the grassland biome and implications for the terrestrial carbon sink[J]. NATURE ECOLOGY & EVOLUTION,2026,N/A. |
| APA | Macdougall, A. S..,Vanzant, B..,Sulik, J..,Bagchi, S..,Naidu, D..,...&Siewert, M. B..(2026).The global extent of the grassland biome and implications for the terrestrial carbon sink.NATURE ECOLOGY & EVOLUTION,N/A. |
| MLA | Macdougall, A. S.,et al."The global extent of the grassland biome and implications for the terrestrial carbon sink".NATURE ECOLOGY & EVOLUTION N/A(2026). |
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来源：地理科学与资源研究所
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