SESSION 2: ADDRESSING CLIMATE CHANGE CHALLENGES PANEL 2.1: - - PowerPoint PPT Presentation

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SESSION 2: ADDRESSING CLIMATE CHANGE CHALLENGES PANEL 2.1: - - PowerPoint PPT Presentation

Jun 22, 2023 219 likes •326 views

SESSION 2: ADDRESSING CLIMATE CHANGE CHALLENGES PANEL 2.1: Adaptation: Climate smart agriculture, water cycle and emergency preparedness Scientific Researcher, Department of Soil and Water, Spanish National Research Council (CSIC) Ana Navas

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PANEL 2.1: Adaptation: Climate smart agriculture, water cycle and emergency preparedness SESSION 2: ADDRESSING CLIMATE CHANGE CHALLENGES

Scientific Researcher, Department of Soil and Water, Spanish National Research Council (CSIC) Ana Navas manages the Gamma Lab and the Research Group on Erosion and Soil and Water Evaluation at the Estación Experimental de Aula Dei; she is a pioneer in the application of radionuclides (FRNs and ERNs) as indicators of environmental processes associated with glacial retreat under conditions of climate change in polar and high mountain regions

Ana NAVAS IZQUIERDO Spain

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Climate change and land degradation: The role of nuclear and isotopic techniques

Ana Navas

PANEL 2.1 Adaptation

Climate smart agriculture, water cycle and emergency preparedness

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Ana Navas anavas@eead.csic.es

water e erosio sion

TOLERABLE soil loss 1.4 t ha-1 yr-1

Verheijen et al., 2009

  • Loss of nutrients
  • Soil compaction
  • Soil productivity decrease

PREVENT DEGRADATION REDUCE EROSION PRESERVE SOIL

Climate Change threats Soil

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Ana Navas anavas@eead.csic.es

Agricultural soils

Highly productive: 3 % With limitations: 78 % Marginal: 19 %

Soil Degradation in the World

  • Water quality
  • Siltation water bodies

Sediments – Nutrients – Contaminants

Im Impacts

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Depth cm Soil Sampling Gamma Spectrometry

FRNs

Ana Navas anavas@eead.csic.es

Nuclear and Isotopic techniques:

Gamma emitting radionuclides (FRNs) - CSSIs

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Ana Navas anavas@eead.csic.es

Conceptual - Applications

137Cs 210Pbex

CSSIs

GIS, Teledetection, Modelling

Gaspar, L. and Navas, A.

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Ana Navas anavas@eead.csic.es

Soil Erosion and Deposition Rates

Quantifying with 137Cs

Navas, A., et al. 2014. Science of the Total Environment, 496: 132-143

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Ana Navas anavas@eead.csic.es

Identifying Sediment Provenance

Fingerprinting

Source 1 Source 2 Source 3 Source 4

% % % %

χ

mixtures

Lizaga, I. https://github.com/eead-csic-eesa/fingerPro

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Ana Navas anavas@eead.csic.es

Reservoir siltation: Tracing recent changes

  • f sediment supply in large catchments

Barasona reservoir Yesa reservoir

137Cs

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PANEL 2.1 Adaptation Climate smart agriculture, water cycle and emergency preparedness

Thanks you for your attention

Ana Navas