Models and Tool Kits

  • CSSIAR v1.0 Software – a new tool to improve soil conservation at catchment level

    - Under the regional TC Project RLA5064 on Strengthening Soil and Water Conservation Strategies at the Landscape Level by Using Innovative Radio and Stable Isotope and Related Techniques, and with the guidance of the Instituto Tecnológico de Sonora, Mexico, Universidad Austral de Chile, Chile, Universidade Federal Fluminense, Brazil, and the National Institute of Water and Atmospheric Research, New Zealand, a new software, called CSSIAR, was developed to assess soil erosion apportionment using data obtained from CSSI analysis, a technique that allows assessing soil redistribution in agricultural landscapes and forest plantations, as well as identifying hotspots of soil erosion. This will help researchers and policy makers to enhance and improve soil conservation measures at the catchment level. This technique is based on the measurement of 13C isotope signatures of specific organic compounds in the soil profile (e.g. fatty acids derived from a specific land use).
    CSSIAR v1.0 is based on SIAR (Stable Isotope Analysis in R) by Andrew Parnell, but with a more user friendly programme interface, and has been created to assess soil apportionment and to identify hot spots of land degradation. CSSIAR v1.0 enables the analysis of larger sets of data and gives more detailed statistical information (including uncertainty) about the proportion of sediment contribution from different land uses in a catchment. This software runs on R, which is free and can be downloaded on the R website ( CSSIAR v1.0 is available on the following link provided below.
    The software has been presented and tested during the Interregional Training Course on the Use of Fallout Radionuclides (FRNs) and CSSI Techniques for Precision Soil Conservation, held in October 2014 at Seibersdorf, Austria. Download software from Dropbox.

  • Phosphate Rocks and Decision Support System
  • AquaCrop - FAO crop-model to simulate yield response to water
  • Roots for Productivity - Prof. Jonathan Lynch's website on methodologies and protocols for studying plant roots. Prof. Lynch is one of the participants of IAEA's CRP D1.50.10.
  • Estimating Soil Erosion and Deposition Rates:
    Models for converting data on environmental fallout radionuclides (FRN)

    - Models [zip] whereby radionuclide inventories can be converted to soil redistribution rates have been developed by scientists from the Department of Geography, University of Exeter, Exeter, UK led by Prof. Des Walling ( in collaboration with IAEA's CRP D1.50.08.

  • eLearning course 'Soil Water Measurement for Better Crop Production and Improving Water Use Efficiency'. You will need to register at the Login page.
  • Stable Isotope probing Protocol - A preliminary protocol on stable isotope probing (SIP) to elucidate the role of soil microorganisms in nutrient cycling and soil quality. Read More ».