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A protocol to build soil descriptions for APSIM simulations.

Rogerio Cichota1, Iris Vogeler1, Joanna Sharp1

  • 1The New Zealand Institute for Plant & Food Research Limited, Lincoln, New Zealand.

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This study simplifies soil process simulation in the Agricultural Production Systems sIMulator (APSIM) framework. It provides a consolidated guide and protocol for defining soil parameters, aiding users and improving scientific consistency.

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Area of Science:

  • Agricultural Science
  • Soil Science
  • Ecosystem Modeling

Background:

  • Soil processes critically influence agroecosystem functions like water and nutrient cycling.
  • Complex soil descriptions in simulation models can be challenging for users without extensive soil science expertise.
  • Existing information on soil process models in APSIM is fragmented and partly outdated.

Purpose of the Study:

  • To provide an abridged description of soil process simulation models within the APSIM framework.
  • To consolidate and update information on soil parameters for APSIM.
  • To establish a protocol with guidelines for creating consistent and accurate soil descriptions in APSIM.

Main Methods:

  • Review of existing literature on soil process models used in APSIM.
  • Compilation and description of relevant soil parameters.
  • Development of a standardized protocol for building APSIM soil descriptions.

Main Results:

  • An abridged description of APSIM soil process simulation models is presented.
  • A comprehensive list and brief descriptions of key soil parameters are provided.
  • A protocol with guidelines for constructing APSIM soil descriptions has been established.

Conclusions:

  • The developed protocol enhances consistency and quality in APSIM-based research.
  • This resource simplifies the process of defining soil parameters for new and existing APSIM users.
  • The findings are also relevant for users of other models requiring detailed soil information.