EGU22-11000
https://doi.org/10.5194/egusphere-egu22-11000
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Estimates of total phosphorus for Amazonia based on an expanded harmonized soil database

Monique Rodrigues da Silva Andrade Maia, Liana Oighenstein Anderson, and Carlos Alberto Nobre Quesada
Monique Rodrigues da Silva Andrade Maia et al.
  • National Center for Monitoring and Early Warning of Natural Disasters – CEMADEN, Brazil, liana.anderson@cemaden.gov.br

The element phosphorus total (Pt) is considered a basic element for life on earth. It controls key processes of CO2 absorption from tropical forests to food production. For the Amazon region, estimates of Pt in the soil are scarce. In this study, we developed models through equations of pedotransfer function (PTF's) using data collected in the field (RAINFOR data). Were generated 16 regression models based on the Akaike information criteria (AIC) with R² above 65% was validated with independent RAINFOR data. The results Pt distribution were spatialized using interpolations by geostatistical method of inverse distance weights (IDW) and shown through maps.

How to cite: Maia, M. R. D. S. A., Anderson, L. O., and Quesada, C. A. N.: Estimates of total phosphorus for Amazonia based on an expanded harmonized soil database, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-11000, https://doi.org/10.5194/egusphere-egu22-11000, 2022.

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