# Linking phosphorus research to impact: advances and challenges in mapping soil phosphorus pools

Julian Helfenstein, Bruno Ringeval, Federica Tamburini, Daniel S Goll, Xianjin He, Vera Mulder, Yingping Wang, Edwin Alblas, Emmanuel Frossard

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## To cite this version:

Julian Helfenstein, Bruno Ringeval, Federica Tamburini, Daniel S Goll, Xianjin He, et al. Linking phosphorus research to impact: advances and challenges in mapping soil phosphorus pools. EGU 2024, EGU, Apr 2024, Vienne (AUT), France. 10.5194/egusphere-egu24-9674. hal-04696573

HAL Id: hal-04696573

https://hal.inrae.fr/hal-04696573v1

Submitted on 13 Sep 2024

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# Linking phosphorus research to impact: advances and challenges in mapping soil phosphorus pools

Julian Helfenstein<fnref n="1" />, Bruno Ringeval<fnref n="2" />, Federica Tamburini<fnref n="3" />, Daniel S. Goll<fnref n="4" />, Xianjin He<fnref n="4" />, Vera Mulder<fnref n="1" />, Yingping Wang<fnref n="5" />, Edwin Alblas<fnref n="6" />, and Emmanuel Frossard<fnref n="3" />

Improved management of phosphorus (P) is essential for achieving a range of Sustainable Development Goals (SDGs), including maintaining food security, preserving water quality, and mitigating climate change. This requires an integration of comprehensive mechanistic understanding with accurate spatial data. In this interdisciplinary review, we combine insights from empirical P research, digital soil mapping, biogeochemical modeling, and environmental law to critically examine the current state, pinpoint challenges and propose novel pathways for desperately needed P maps. We first elucidate the relevance of spatial data on P for different SDGs. Subsequently, we summarize the current efforts in mapping P pools at regional to global scales, and discuss the challenges of mapping "available P" due to substantial local scale variability and poor correlation with predictors relative to other soil properties. The practical applicability of these recently published maps is tested by evaluating them with independent measurement data. Finally, we outline ways forward to enhance the accuracy and reliability of P maps, as a basis for science-informed management of P resources.

<footnote n="1">¹Soil Geography and Landscape Group, Wageningen University, Wageningen, the Netherlands</footnote>

<footnote n="2">²ISPA, Bordeaux Sciences Agro, INRAE, F-33140, Villenave d'Ornon, France</footnote>

<footnote n="3">³Plant Nutrition, Swiss Federal Institute of Technology (ETH), Zürich, Switzerland</footnote>

<footnote n="4">⁴Université Paris Saclay, CEA-CNRS-UVSQ, LSCE/IPSL, Gif sur Yvette, France</footnote>

<footnote n="5">⁵CSIRO Environment, Private Bag 10, Clayton South VIC 3169, Australia</footnote>

<footnote n="6">⁶Environmental Law Group, Wageningen University, Wageningen, the Netherlands</footnote>