Articles | Volume 14, issue 18
Research article
28 Sep 2017
Research article |  | 28 Sep 2017

Soil respiration across a permafrost transition zone: spatial structure and environmental correlates

James C. Stegen, Carolyn G. Anderson, Ben Bond-Lamberty, Alex R. Crump, Xingyuan Chen, and Nancy Hess

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Cited articles

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Bond-Lamberty, B. and Thomson, A.: Temperature-associated increases in the global soil respiration record, Nature, 464, 579–582,, 2010.
Burrows, S. N., Gower, S. T., Clayton, M. K., Mackay, D. S., Ahl, D. E., Norman, J. M., and Diak, G.: Application of geostatistics to characterize leaf area index (LAI) from flux tower to landscape scales using a cyclic sampling design, Ecosystems, 5, 667–679,, 2002.
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Dore, S., Fry, D. L., and Stephens, S. L.: Spatial heterogeneity of soil CO2 efflux after harvest and prescribed fire in a California mixed conifer forest, Forest Ecol. Manag., 319, 150–160,, 2014.
Short summary
CO2 loss from soil to the atmosphere (soil respiration) is a key ecosystem function, especially in systems with permafrost. We find that soil respiration shows a non-linear threshold at permafrost depths > 140 cm and that the number of large trees governs soil respiration. This suggests that remote sensing could be used to estimate spatial variation in soil respiration and (with knowledge of key thresholds) empirically constrain models that predict ecosystem responses to permafrost thaw.
Final-revised paper