Perspectives from the Fritz‐Scheffer Awardee 2019. Oxygen isotopes in phosphate—The key to phosphorus tracing?

Phosphorus (P) tracing in natural environments is challenging, lacking stable P isotopes Oxygen isotope ratios in phosphate (δ 18 O P ) represent a novel tool for tracing the biological cycling of P from the global scale down to hotspots at the micro‐scale and within particular soil compartments such as aggregates or pores. Despite the small number of studies available so far, existing data indicate that δ 18 O P values point to where, at what extent and how efficiently P is recycled in soils.