Campus Units
Ecology, Evolution and Organismal Biology
Document Type
Article
Publication Version
Published Version
Publication Date
2019
Journal or Book Title
Nature Communications
Volume
10
First Page
4981
DOI
10.1038/s41467-019-12948-2
Abstract
Soil nitrogen mineralisation (Nmin), the conversion of organic into inorganic N, is important for productivity and nutrient cycling. The balance between mineralisation and immobilisation (net Nmin) varies with soil properties and climate. However, because most global-scale assessments of net Nmin are laboratory-based, its regulation under field-conditions and implications for real-world soil functioning remain uncertain. Here, we explore the drivers of realised (field) and potential (laboratory) soil net Nmin across 30 grasslands worldwide. We find that realised Nmin is largely explained by temperature of the wettest quarter, microbial biomass, clay content and bulk density. Potential Nmin only weakly correlates with realised Nmin, but contributes to explain realised net Nmin when combined with soil and climatic variables. We provide novel insights of global realised soil net Nmin and show that potential soil net Nmin data available in the literature could be parameterised with soil and climate data to better predict realised Nmin.
Rights
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.
Language
en
File Format
application/pdf
Recommended Citation
Risch, A. C.; Fay, P. A.; Biederman, L. A.; and et al., "Soil net nitrogen mineralisation across global grasslands" (2019). Ecology, Evolution and Organismal Biology Publications. 376.
https://lib.dr.iastate.edu/eeob_ag_pubs/376
Comments
This article is published as Risch, A.C., Zimmermann, S., Ochoa-Hueso, R. et al. Soil net nitrogen mineralisation across global grasslands. Nat Commun 10, 4981 (2019) doi: 10.1038/s41467-019-12948-2.