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LandscapeDNDC 1.37.0
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LandscapeDNDC 1.37.0
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The original ORYZA2000 crop model uses cultivar parameter files containing scalar parameters and tabulated response functions. In the current LandscapeDNDC wrapper, a subset of scalar parameters is parsed and can be overwritten from JSON input. Parameters not supplied in the JSON input remain unchanged and keep their default values.
The following table lists the scalar parameters currently exposed by the wrapper.
| Parameter | Unit | Description |
|---|---|---|
| TBD | degC | Base temperature for phenological development |
| TBLV | degC | Base temperature for juvenile leaf area growth |
| TMD | degC | Maximum temperature for development |
| TOD | degC | Optimum temperature for development |
| DVRJ | degC d-1 | Development rate in juvenile phase |
| DVRI | degC d-1 | Development rate in photoperiod-sensitive phase |
| DVRP | degC d-1 | Development rate in panicle development phase |
| DVRR | degC d-1 | Development rate in reproductive phase |
| MOPP | h | Maximum optimum photoperiod |
| PPSE | h-1 | Photoperiod sensitivity |
| SHCKD | - | Coefficient relating seedling age to delay in phenological development |
| RGRLMX | degC d-1 | Maximum relative growth rate of leaf area |
| RGRLMN | degC d-1 | Minimum relative growth rate of leaf area |
| SHCKL | - | Coefficient relating seedling age to delay in leaf area development |
| ASLA | - | Empirical coefficient of the specific leaf area function |
| BSLA | - | Empirical coefficient of the specific leaf area function |
| CSLA | - | Curvature coefficient of the specific leaf area function |
| DSLA | - | Development stage shift coefficient of the specific leaf area function |
| SLAMAX | ha kg-1 | Maximum specific leaf area |
| FRPAR | - | Fraction of incoming solar radiation that is photosynthetically active radiation |
| SCP | - | Scattering coefficient of leaves for PAR |
| MAINLV | kg CH2O kg-1 DM d-1 | Maintenance respiration coefficient of leaves |
| MAINST | kg CH2O kg-1 DM d-1 | Maintenance respiration coefficient of stems |
| MAINSO | kg CH2O kg-1 DM d-1 | Maintenance respiration coefficient of storage organs / panicles |
| MAINRT | kg CH2O kg-1 DM d-1 | Maintenance respiration coefficient of roots |
| TREF | degC | Reference temperature for maintenance respiration |
| Q10 | - | Temperature response factor for maintenance respiration |
| CRGLV | kg CH2O kg-1 DM | Carbohydrate requirement for dry matter production in leaves |
| CRGST | kg CH2O kg-1 DM | Carbohydrate requirement for dry matter production in stems |
| CRGSO | kg CH2O kg-1 DM | Carbohydrate requirement for dry matter production in storage organs / panicles |
| CRGRT | kg CH2O kg-1 DM | Carbohydrate requirement for dry matter production in roots |
| CRGSTR | kg CH2O kg-1 DM | Carbohydrate requirement for stem reserve formation |
| LRSTR | - | Fraction of allocated stem reserves available for growth |
| FSTR | - | Fraction of carbohydrates allocated to stems that is stored as reserves |
| TCLSTR | d-1 | Time coefficient for loss or remobilization of stem reserves |
| SPGF | no kg-1 | Spikelet growth factor |
| WGRMX | kg grain-1 | Maximum individual grain weight |
| FCLV | kg C kg-1 DM | Carbon fraction of leaves |
| FCST | kg C kg-1 DM | Carbon fraction of stems |
| FCSO | kg C kg-1 DM | Carbon fraction of storage organs / panicles |
| FCRT | kg C kg-1 DM | Carbon fraction of roots |
| FCSTR | kg C kg-1 DM | Carbon fraction of stem reserves |
| GZRT | m d-1 | Root depth growth rate |
| ZRTMCW | m | Maximum rooting depth under non-drought conditions |
| ZRTMCD | m | Maximum rooting depth under drought conditions |
| ULLS | kPa | Upper limit for leaf rolling stress |
| LLLS | kPa | Lower limit for leaf rolling stress |
| ULDL | kPa | Upper limit for drought-induced leaf death |
| LLDL | kPa | Lower limit for drought-induced leaf death |
| ULLE | kPa | Upper limit for drought-induced reduction in leaf expansion |
| LLLE | kPa | Lower limit for drought-induced reduction in leaf expansion |
| ULRT | kPa | Upper limit for reduction in relative transpiration |
| LLRT | kPa | Lower limit for reduction in relative transpiration |
| NMAXUP | kg N ha-1 d-1 | Maximum daily nitrogen uptake |
| RFNLV | kg N kg-1 leaf DM | Residual nitrogen fraction of leaves |
| FNTRT | - | Additional fraction of nitrogen translocation from roots |
| RFNST | kg N kg-1 stem DM | Residual nitrogen fraction of stems |
| TCNTRF | d | Time coefficient for nitrogen translocation to grains |
| NFLVI | g N m-2 leaf | Initial leaf nitrogen content on area basis |
| FNLVI | kg N kg-1 leaf DM | Initial leaf nitrogen content on mass basis |
| NMAXSO | kg N kg-1 DM | Maximum nitrogen concentration in storage organs |
L-ORYZA2000 is a wrapper of the ORYZA2000 model that supports its execution within the LandscapeDNDC MoBiLe environment.
Example XML configuration:
In this setup:
microclimate:canopyecm provides canopy-scale meteorological forcing,watercycle:watercycledndc provides soil water dynamics and plant water supply,soilchemistry:metrx provides soil biogeochemistry and plant-available N,
1.13.2