Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1038/s41467-019-11472-7
Lizenz creative commons licence
Titel (primär) Global ecological predictors of the soil priming effect
Autor Bastida, F.; García, C.; Fierer, N.; Eldridge, D.J.; Bowker, M.A.; Abades, S.; Alfaro, F.D.; Berhe, A.A.; Cutler, N.A.; Gallardo, A.; García-Velázquez, L.; Hart, S.C.; Hayes, P.E.; Hernández, T.; Hseu, Z.-Y.; Jehmlich, N. ORCID logo ; Kirchmair, M.; Lambers, H.; Neuhauser, S.; Peña-Ramírez, V.M.; Pérez, C.A.; Reed, S.C.; Santos, F.A.M.; Siebe, C.; Sullivan, B.W.; Trivedi, P.; Vera, A.; Williams, M.A.; Moreno, J.L.; Delgado-Baquerizo, M.
Journal / Serie Nature Communications
Erscheinungsjahr 2019
Department MOLSYB
Band/Volume 10
Seite von art. 3481
Sprache englisch
Abstract Identifying the global drivers of soil priming is essential to understanding C cycling in terrestrial ecosystems. We conducted a survey of soils across 86 globally-distributed locations, spanning a wide range of climates, biotic communities, and soil conditions, and evaluated the apparent soil priming effect using 13C-glucose labeling. Here we show that the magnitude of the positive apparent priming effect (increase in CO2 release through accelerated microbial biomass turnover) was negatively associated with SOC content and microbial respiration rates. Our statistical modeling suggests that apparent priming effects tend to be negative in more mesic sites associated with higher SOC contents. In contrast, a single-input of labile C causes positive apparent priming effects in more arid locations with low SOC contents. Our results provide solid evidence that SOC content plays a critical role in regulating apparent priming effects, with important implications for the improvement of C cycling models under global change scenarios.
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Bastida, F., García, C., Fierer, N., Eldridge, D.J., Bowker, M.A., Abades, S., Alfaro, F.D., Berhe, A.A., Cutler, N.A., Gallardo, A., García-Velázquez, L., Hart, S.C., Hayes, P.E., Hernández, T., Hseu, Z.-Y., Jehmlich, N., Kirchmair, M., Lambers, H., Neuhauser, S., Peña-Ramírez, V.M., Pérez, C.A., Reed, S.C., Santos, F.A.M., Siebe, C., Sullivan, B.W., Trivedi, P., Vera, A., Williams, M.A., Moreno, J.L., Delgado-Baquerizo, M. (2019):
Global ecological predictors of the soil priming effect
Nat. Commun. 10 , art. 3481