The Use of the δ18OP to Study P Cycling in the Environment
| Autor: | Pfahler, Verena, Adu-Gyamfi, Joseph, O'Connell, David W., Tamburini, Federica |
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| Přispěvatelé: | Adu-Gyamfi, Joseph, Pfahler, Verena |
| Rok vydání: | 2022 |
| Zdroj: | Oxygen Isotopes of Inorganic Phosphate in Environmental Samples ISBN: 9783030974961 Oxygen Isotopes of Inorganic Phosphate in Environmental Samples |
| DOI: | 10.1007/978-3-030-97497-8_1 |
| Popis: | Phosphorus (P) fertilizers are known to increase crop productivity; however, when applied in excess, it can cause serious environment pollution. Monitoring P pollution in natural environments using stable isotopes has been difficult because P has only one stable isotope (31P) making the use of P stable isotope tracing not an option. Radioactive P isotopes (32P and 33P) have been used but its drawbacks are the short half-life, health risks and safety procedures required to apply them in agricultural catchments. Phosphorus in organic and inorganic P forms is strongly bonded to oxygen (O), which has three stable isotopes, providing a system to track P cycling in agricultural catchments and environment using the stable isotopes of O in phosphate (δ18O-PO4). In recent years, various studies have indicated that the analysis of the stable isotopic composition of oxygen (O) bound to P (δ18Op) to better understand P cycling in the environment, has become a promising tracer (surrogate) to investigate soil P transformation, plant P uptake and to trace the sources of P from the soil to water bodies and the environment. The chapter outlines the background and examples of δ18Op studies in sediments, soils, fresh water, mineral fertilizers and plants. Oxygen Isotopes of Inorganic Phosphate in Environmental Samples ISBN:978-3-030-97496-1 ISBN:978-3-030-97497-8 |
| Databáze: | OpenAIRE |
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