Project

An integrated sediment export quantification approach for sustainable management agroecosystems

Code
3E010421
Duration
01 November 2021 → 31 October 2024
Funding
Research Foundation - Flanders (FWO)
Research disciplines
  • Natural sciences
    • Geomorphology and landscape evolution
    • Remote sensing
    • Soil chemistry
  • Agricultural and food sciences
    • Agricultural land management and planning
    • Forestry management and modelling
Keywords
Fingerprinting modelling radiometric dating techniques land use-based tracers
 
Project description

Soil erosion and subsequent transport of sediment and pollutants are important challenges for food security and water quality. Controlling sediment and particle-bound substance export requires the implementation of improved ecological restoration schemes, especially in areas experiencing drastic increases of erosion rates. To this end, we propose the design of an ensemble technique that combines the use of sediment fingerprinting together with radionuclide dating and remote sensing data to fill these critical knowledge gaps. This project will focus on testing and developing powerful specific land use tracers, such as Compound Specific Stable Isotopes (CSSI) and environmental DNA (eDNA) for improving the land cover discrimination of sediment provenance, through the collection and dating of sediment cores in sink areas. This research will be conducted in two contrasting catchments with different history and land use changes allowing to test the effectiveness of this novel approach: i)Isabena catchment (Spain), representative of areas experiencing sediment export decrease due to land abandonment, and ii) Kihira catchment (DR Congo), representative of intensively unsustainable cultivated areas experiencing increasing sediment export. By combining these two contrasting catchments and applying state-of-the-art and methods, I will be able to evaluate the main driving factors of the past and present erosion rates and predict the effects of human management and climate change.