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Global patterns of the isotopic composition of soil and plant nitrogen

Dates

Year
2003

Citation

Amundson, Ronald, Austin, A T, Schuur, E a. G, Yoo, K, Matzek, V, Kendall, C, Uebersax, A, Brenner, D, and Baisden, W T, 2003, Global patterns of the isotopic composition of soil and plant nitrogen: Global Biogeochemical Cycles, v. 17, iss. 1.

Summary

We compiled new and published data on the natural abundance N isotope composition (δ15N values) of soil and plant organic matter from around the world. Across a broad range of climate and ecosystem types, we found that soil and plant δ15N values systematically decreased with increasing mean annual precipitation (MAP) and decreasing mean annual temperature (MAT). Because most undisturbed soils are near N steady state, the observations suggest that an increasing fraction of ecosystem N losses are 15N-depleted forms (NO3, N2O, etc.) with decreasing MAP and increasing MAT. Wetter and colder ecosystems appear to be more efficient in conserving and recycling mineral N. Globally, plant δ15N values are more negative than soils, but the difference [...]

Contacts

Communities

  • USGS National Research Program

Tags

Provenance

Added to ScienceBase on Fri Apr 19 09:06:26 MDT 2013 by processing file <b>Isotope Tracers of Biogeochemical and Hydrologic Processes.xml</b> in item <a href="https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd338b">https://www.sciencebase.gov/catalog/item/504216bae4b04b508bfd338b</a>

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1029/2002GB001903

Citation Extension

journalGlobal Biogeochemical Cycles
parts
typeVolume
value17
typeIssue
value1
citationTypeJournal Article

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