INVESTIGADORES
SPEZIALE Karina Lilian
artículos
Título:
Soil net nitrogen mineralisation across global grasslands
Autor/es:
RISCH, A. C.; ZIMMERMANN, S.; OCHOA-HUESO, R.; SCHÜTZ, M.; FREY, B.; FIRN, J. L.; FAY, P. A.; HAGEDORN, F.; BORER, E. T.; SEABLOOM, E. W.; HARPOLE, W. S.; KNOPS, J. M. H.; MCCULLEY, R. L.; BROADBENT, A. A. D.; STEVENS, C. J.; SILVEIRA, M. L.; ADLER, P. B.; BÁEZ, S.; BIEDERMAN, L. A.; BLAIR, J. M.; BROWN, C. S.; CALDEIRA, M. C.; COLLINS, S. L.; DALEO, P.; DI VIRGILIO, A.; EBELING, A.; EISENHAUER, N.; ESCH, E.; ESKELINEN, A.; HAGENAH, N.; HAUTIER, Y.; KIRKMAN, K. P.; MACDOUGALL, A. S.; MOORE, J. L.; POWER, S. A.; PROBER, S. M.; ROSCHER, C.; SANKARAN, M.; SIEBERT, J.; SPEZIALE, K. L.; TOGNETTI, P. M.; VIRTANEN, R.; YAHDJIAN, L.; MOSER, B.
Revista:
NATURE COMMUNICATIONS
Editorial:
Nature
Referencias:
Año: 2019 vol. 10
ISSN:
2041-1723
Resumen:
Soil nitrogen mineralisation (Nmin), the conversion of organic into inorganic N, is importantfor productivity and nutrient cycling. The balance between mineralisation and immobilisation(net Nmin) varies with soil properties and climate. However, because most global-scaleassessments of net Nmin are laboratory-based, its regulation under field-conditions andimplications for real-world soil functioning remain uncertain. Here, we explore the drivers ofrealised (field) and potential (laboratory) soil net Nmin across 30 grasslands worldwide. Wefind that realised Nmin is largely explained by temperature of the wettest quarter, microbialbiomass, clay content and bulk density. Potential Nmin only weakly correlates with realisedNmin, but contributes to explain realised net Nmin when combined with soil and climaticvariables. We provide novel insights of global realised soil net Nmin and show that potentialsoil net Nmin data available in the literature could be parameterised with soil and climate datato better predict realised Nmin.