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APSIMInitiative / ApsimX

ApsimX is the next generation of APSIM
http://www.apsim.info
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sodicity and compaction functionalities #5532

Open Chloe0317 opened 4 years ago

Chloe0317 commented 4 years ago

The ability to model soil sodicity and its impacts on crops requires the development of the soil nutrient module to account for exchangeable cation dynamics and the development of a compaction module that handles deep placement of soil amendments and fertilisers; and interacts with the plant module to simulate effects of subsoil compaction to constrain root penetration and growth of crops.

Reduced germination and emergence of crops grown on sodic soils experiencing surface crusting and hard-setting will be modelled with rainfall amount and intensity. Genotype-specific germination and emergence rates under sodic conditions may be incorporated through manager scripts depending on the availability of data.

The modelling of exchangeable cation dynamics coupled with the compaction module will interact with the SWIM module to determine effective PAWC under different management scenarios and gypsum movement in the soil profile through time accounting for gradual changes in soil conditions. An alternative to interact with the SoilWat module will also be included to enable parameterisation when limited data of soil hydraulic properties is available.

Chloe0317 commented 4 years ago

@hol430 Dear Drew, could you help me labeling it as aspirational please? Thanks heaps!