Articles | Volume 16, issue 15
Research article
09 Aug 2019
Research article |  | 09 Aug 2019

A novel isotope pool dilution approach to quantify gross rates of key abiotic and biological processes in the soil phosphorus cycle

Wolfgang Wanek, David Zezula, Daniel Wasner, Maria Mooshammer, and Judith Prommer

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Cited articles

Achat, D. L., Bakker, M. R., Saur, E., Pellerin, S., Augusto, L., and Morel, C.: Quantifying gross mineralisation of P in dead soil organic matter: Testing an isotopic dilution method, Geoderma, 158, 163–172,, 2010. 
Achat, D. L., Augusto, L., Morel, C., and Bakker, M. R.: Predicting available phosphate ions from physical-chemical soil properties in acidic sandy soils under pine forests, J. Soils Sediments, 11, 452–466,, 2011. 
Achat, D. L., Augusto, L., Bakker, M. R., Gallet-Budynek, A., and Morel, C.: Microbial processes controlling P availability in forest spodosols as affected by soil depth and soil properties, Soil Biol. Biochem., 44, 39–48,, 2012. 
Achat, D. L., Bakker, M. R., Augusto, L., and Morel, C.: Contributions of microbial and physical-chemical processes to phosphorus availability in Podzols and Arenosols under a temperate forest, Geoderma, 211, 18–27,, 2013. 
Achat, D. L., Pousse, N., Nicolas, M., Bredoire, F., and Augusto, L.: Soil properties controlling inorganic phosphorus availability: general results from a national forest network and a global compilation of the literature, Biogeochemistry, 127, 255–272,, 2016. 
Short summary
Efforts to understand the global phosphorus (P) cycle are limited by the scarcity of global data on rates of soil P processes, as well as on its environmental controls. Here, we present a novel approach using radiophosphorus labeling of soils, which allows for the measurement of fluxes of abiotic and biotic soil P processes. This approach is also suitable for strongly weathered and P-depleted soils. Biotic processes are corrected for abiotic processes by comparing live and sterile soils.
Final-revised paper