The following table describes the management events that are currently available. A management event consists of an event designator, which in *.sch files is a 4 letter mneumonic, and for some events, a field of additional information about the event.
| Mneumonic | Action | Additional Information |
|---|---|---|
| CROP | Specifies which crop is to be grown. | Crop name from the crop parameter file. Optionally, CROP parameter values can specified after the event name, in brackets or parentheses using the form NAME=VALUE. Use brackets to enclose a parameter name that has parentheses. E.g., "CROP [MAIZ PRDX(1)=425]". |
| CULT | Schedule a cultivation event. | Cultivation event name from the cultivation parameter file. |
| DEPO | (Century5 only.) Schedule a deposition event. Reads the deposition amount from the erosion file created in a previous simulation. |
None. |
| EROD | (Century5 only.) Schedule an erosion event. If an erosion file is specified in the simulation management, erosion amounts will be written to that file. This file can then be used for deposition in subsequent simulations. | Amount of soil to be lost in kg m-2 month-1. A second optional value specifies the enrichment factor. |
| EXTR | Schedule an external event. The use of this event is determined by the particular implementation of the CENTURY model. The external event is implemented at end of the time step. | Optional string to be passed to the external function. |
| FERT | Schedule a fertilization event. | Fertilization event name from the fertilization parameter file. Optionally, the FERAMT(*) values (gN/m2/month) can specified after the event name, in parentheses. E.g., "FERT (N5 5.2 1.0)" says "use event N5 but add 5.2 g N and 1.0 g P this month." |
| FIRE | Schedule a fire event. | Fire event name from the fire parameter file. |
| FRST | First month of growth for crops and grasses. This must be specified in order for growth to begin. | None. |
| GRAZ | Schedule a crop/grass grazing event. | Grazing event name from the grazing parameter file |
| HARV | Schedule a harvest event. Harvesting automatically schedules a last month of growth (LAST) event. | Harvest event name from harvest parameter file. |
| IRRI | Schedule an irrigation event. | Irrigation event name from the irrigation parameter file. |
| LAST | Last month of growth for crops. | None. |
| OMAD | Schedule organic matter addition. | Organic matter addition event name from the organic matter addition parameter database file. Optionally, specify an amount of carbon (parameter ASTGC) to be added; this amount replaces the ASTGC value in the parameter set for this month. The ASTGC value (gN/m2/month) is specified after the event name, in parentheses. E.g., "OMAD (M1 200)" says "use event M1 but add 200 g C this month." |
| PLTM | Month in which the current crop is planted. This event is optional. If used, triggers use of crop parameter PLTMRF. See Shading Effect upon Production. | None. |
| SENM | Month of senescence for crops. | None. |
| TFST | First month of growth for a forest. | None. |
| TLST | Last month of growth for a forest. | None. |
| TREE | Designates which tree type is to be grown. | Tree name from the tree parameter file. |
| TREM | Schedule a tree removal event. | Tree removal event name from tree removal parameter file. |