The DOI matches its Crossref record; 26 of the 26 references it cites were found in a registry or an index.
Impact of desert dust on the biogeochemistry of phosphorus in terrestrial ecosystems
Open accessAbstract
Leaching, biomass removal, and partitioning of phosphorus (P) into reservoirs not available to plants can limit the long‐term productivity of terrestrial ecosystems. We evaluate the importance of atmospheric P inputs to the world's soils by estimating the total soil P turnover time with respect to dustborne P additions. Estimated turnover times range from ∼10 4 to ∼10 7 years. Our estimates provide a unique perspective on the importance and patterns of aeolian deposition to terrestrial landscapes. Dust source regions are areas of intense soil P cycling on large scales, but are too water‐limited for this rapid cycling to have a major influence on ecosystem dynamics. By contrast, semiarid desert margins receive significant aeolian P from neighboring deserts and are likely influenced by dustborne P additions for the long‐term maintenance of productivity. This is particularly true for the semiarid steppes of Africa and Eurasia. The prevalence of large dust sources in Africa and Eurasia indicates that these areas may generally be more influenced by dustborne P additions than soils in the Americas. Significant western hemisphere exceptions to this pattern occur on very old landscapes, such as the forests of the southeastern United States and the Amazon Basin. The Amazon Basin is highly dependent on aeolian deposition for the maintenance of long‐term productivity. Dust deposition to terrestrial environments has not been constant with time. Variability in past P deposition related to geologically recent climate change may provide the strongest controls on present and future soil P in the Amazon and elsewhere.
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Cites
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Self-citationMineral Dust Entrainment and Deposition (DEAD) model: Description and 1990s dust climatology
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Cited by
Terrestrial phosphorus limitation: mechanisms, implications, and nitrogen–phosphorus interactions
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Self-citationC:N:P stoichiometry in soil: is there a “Redfield ratio” for the microbial biomass?
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The physics of wind-blown sand and dust
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Self-citationThe size distribution of desert dust aerosols and its impact on the Earth system
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Metadata
- Authors
- Okin, G. S., Mahowald, N., Chadwick, O. A., & Artaxo, P.
- Venue
- Global Biogeochemical Cycles
- Publisher
- American Geophysical Union (AGU)
- Published
- 2004-04-21
- Volume
- 18
- Issue
- 2
- ISSN
- 0886-6236 (ISSN-L)
- 1944-9224
- OpenAlex
- W2043630037
- Cited by
- 526
- References
- 26
- FWCI
- 18.09
- Type
- journal article
- Language
- en
- Open access
- bronze
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