Convergence of soil nitrogen isotopes across global climate gradients

Joseph M. Craine; Andrew J. Elmore; Lixin Wang; Laurent Augusto; W. Troy Baisden; E. N.J. Brookshire; Michael D. Cramer; Niles J. Hasselquist; Erik A. Hobbie; Ansgar Kahmen; Keisuke Koba; J. Marty Kranabetter; Michelle C. Mack; Erika Marin-Spiotta; Jordan R. Mayor; Kendra K. McLauchlan; Anders Michelsen; Gabriela B. Nardoto; Rafael S. Oliveira; Steven S. Perakis; Pablo L. Peri; Carlos A. Quesada; Andreas Richter; Louis A. Schipper; Bryan A. Stevenson; Benjamin L. Turner; Ricardo A.G. Viani; Wolfgang Wanek; Bernd Zeller

doi:10.1038/srep08280

Convergence of soil nitrogen isotopes across global climate gradients

Joseph M. Craine, Andrew J. Elmore, Lixin Wang, Laurent Augusto, W. Troy Baisden, E. N.J. Brookshire, Michael D. Cramer, Niles J. Hasselquist, Erik A. Hobbie, Ansgar Kahmen, Keisuke Koba, J. Marty Kranabetter, Michelle C. Mack, Erika Marin-Spiotta, Jordan R. Mayor, Kendra K. McLauchlan, Anders Michelsen, Gabriela B. Nardoto, Rafael S. Oliveira, Steven S. PerakisPablo L. Peri, Carlos A. Quesada, Andreas Richter, Louis A. Schipper, Bryan A. Stevenson, Benjamin L. Turner, Ricardo A.G. Viani, Wolfgang Wanek, Bernd Zeller

Research output: Contribution to journal › Article › peer-review

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Abstract

Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the ¹⁵N:¹⁴N ratio of soil organic matter across climate gradients provide key insights into understanding global patterns of N cycling. In synthesizing data from over 6000 soil samples, we show strong global relationships among soil N isotopes, mean annual temperature (MAT), mean annual precipitation (MAP), and the concentrations of organic carbon and clay in soil. In both hot ecosystems and dry ecosystems, soil organic matter was more enriched in ¹⁵N than in corresponding cold ecosystems or wet ecosystems. Below a MATof 9.8°C, soil Δ¹⁵N was invariant with MAT. At the global scale, soil organic C concentrations also declined with increasing MAT and decreasing MAP. After standardizing for variation among mineral soils in soil C and clay concentrations, soil Δ¹⁵N showed no consistent trends across global climate and latitudinal gradients. Our analyses could place new constraints on interpretations of patterns of ecosystem N cycling and global budgets of gaseous N loss.

Original language	English (US)
Article number	8280
Journal	Scientific Reports
Volume	5
DOIs	https://doi.org/10.1038/srep08280
State	Published - Feb 6 2015
Externally published	Yes

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Craine, J. M., Elmore, A. J., Wang, L., Augusto, L., Baisden, W. T., Brookshire, E. N. J., Cramer, M. D., Hasselquist, N. J., Hobbie, E. A., Kahmen, A., Koba, K., Kranabetter, J. M., Mack, M. C., Marin-Spiotta, E., Mayor, J. R., McLauchlan, K. K., Michelsen, A., Nardoto, G. B., Oliveira, R. S., ... Zeller, B. (2015). Convergence of soil nitrogen isotopes across global climate gradients. Scientific Reports, 5, Article 8280. https://doi.org/10.1038/srep08280

Craine, JM, Elmore, AJ, Wang, L, Augusto, L, Baisden, WT, Brookshire, ENJ, Cramer, MD, Hasselquist, NJ, Hobbie, EA, Kahmen, A, Koba, K, Kranabetter, JM, Mack, MC, Marin-Spiotta, E, Mayor, JR, McLauchlan, KK, Michelsen, A, Nardoto, GB, Oliveira, RS, Perakis, SS, Peri, PL, Quesada, CA, Richter, A, Schipper, LA, Stevenson, BA, Turner, BL, Viani, RAG, Wanek, W & Zeller, B 2015, 'Convergence of soil nitrogen isotopes across global climate gradients', Scientific Reports, vol. 5, 8280. https://doi.org/10.1038/srep08280

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title = "Convergence of soil nitrogen isotopes across global climate gradients",

abstract = "Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15N:14N ratio of soil organic matter across climate gradients provide key insights into understanding global patterns of N cycling. In synthesizing data from over 6000 soil samples, we show strong global relationships among soil N isotopes, mean annual temperature (MAT), mean annual precipitation (MAP), and the concentrations of organic carbon and clay in soil. In both hot ecosystems and dry ecosystems, soil organic matter was more enriched in 15N than in corresponding cold ecosystems or wet ecosystems. Below a MATof 9.8°C, soil Δ15N was invariant with MAT. At the global scale, soil organic C concentrations also declined with increasing MAT and decreasing MAP. After standardizing for variation among mineral soils in soil C and clay concentrations, soil Δ15N showed no consistent trends across global climate and latitudinal gradients. Our analyses could place new constraints on interpretations of patterns of ecosystem N cycling and global budgets of gaseous N loss.",

author = "Craine, {Joseph M.} and Elmore, {Andrew J.} and Lixin Wang and Laurent Augusto and Baisden, {W. Troy} and Brookshire, {E. N.J.} and Cramer, {Michael D.} and Hasselquist, {Niles J.} and Hobbie, {Erik A.} and Ansgar Kahmen and Keisuke Koba and Kranabetter, {J. Marty} and Mack, {Michelle C.} and Erika Marin-Spiotta and Mayor, {Jordan R.} and McLauchlan, {Kendra K.} and Anders Michelsen and Nardoto, {Gabriela B.} and Oliveira, {Rafael S.} and Perakis, {Steven S.} and Peri, {Pablo L.} and Quesada, {Carlos A.} and Andreas Richter and Schipper, {Louis A.} and Stevenson, {Bryan A.} and Turner, {Benjamin L.} and Viani, {Ricardo A.G.} and Wolfgang Wanek and Bernd Zeller",

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AU - Craine, Joseph M.

AU - Elmore, Andrew J.

AU - Wang, Lixin

AU - Augusto, Laurent

AU - Baisden, W. Troy

AU - Brookshire, E. N.J.

AU - Cramer, Michael D.

AU - Hasselquist, Niles J.

AU - Hobbie, Erik A.

AU - Kahmen, Ansgar

AU - Koba, Keisuke

AU - Kranabetter, J. Marty

AU - Mack, Michelle C.

AU - Marin-Spiotta, Erika

AU - Mayor, Jordan R.

AU - McLauchlan, Kendra K.

AU - Michelsen, Anders

AU - Nardoto, Gabriela B.

AU - Oliveira, Rafael S.

AU - Perakis, Steven S.

AU - Peri, Pablo L.

AU - Quesada, Carlos A.

AU - Richter, Andreas

AU - Schipper, Louis A.

AU - Stevenson, Bryan A.

AU - Turner, Benjamin L.

AU - Viani, Ricardo A.G.

AU - Wanek, Wolfgang

AU - Zeller, Bernd

PY - 2015/2/6

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N2 - Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15N:14N ratio of soil organic matter across climate gradients provide key insights into understanding global patterns of N cycling. In synthesizing data from over 6000 soil samples, we show strong global relationships among soil N isotopes, mean annual temperature (MAT), mean annual precipitation (MAP), and the concentrations of organic carbon and clay in soil. In both hot ecosystems and dry ecosystems, soil organic matter was more enriched in 15N than in corresponding cold ecosystems or wet ecosystems. Below a MATof 9.8°C, soil Δ15N was invariant with MAT. At the global scale, soil organic C concentrations also declined with increasing MAT and decreasing MAP. After standardizing for variation among mineral soils in soil C and clay concentrations, soil Δ15N showed no consistent trends across global climate and latitudinal gradients. Our analyses could place new constraints on interpretations of patterns of ecosystem N cycling and global budgets of gaseous N loss.

AB - Quantifying global patterns of terrestrial nitrogen (N) cycling is central to predicting future patterns of primary productivity, carbon sequestration, nutrient fluxes to aquatic systems, and climate forcing. With limited direct measures of soil N cycling at the global scale, syntheses of the 15N:14N ratio of soil organic matter across climate gradients provide key insights into understanding global patterns of N cycling. In synthesizing data from over 6000 soil samples, we show strong global relationships among soil N isotopes, mean annual temperature (MAT), mean annual precipitation (MAP), and the concentrations of organic carbon and clay in soil. In both hot ecosystems and dry ecosystems, soil organic matter was more enriched in 15N than in corresponding cold ecosystems or wet ecosystems. Below a MATof 9.8°C, soil Δ15N was invariant with MAT. At the global scale, soil organic C concentrations also declined with increasing MAT and decreasing MAP. After standardizing for variation among mineral soils in soil C and clay concentrations, soil Δ15N showed no consistent trends across global climate and latitudinal gradients. Our analyses could place new constraints on interpretations of patterns of ecosystem N cycling and global budgets of gaseous N loss.

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Convergence of soil nitrogen isotopes across global climate gradients

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