act_typ

The actions that can be triggered using the lum.dtl file are defined in the SWAT+ code. For each action, the type and ID of the object it is applied to, and a user-defined name have to be specified. Certain actions require additional information, which has to be specified in the fields option, const, const2, and fp. The use of these four fields depends on the action. The table below lists the actions implemented in the SWAT+ code, a short description, and the additional fields needed.

Action	Description	Additional fields needed
irrigate	Irrigation	option, const, const2, fp
irr_demand
fertilize	Fertilizer application	option, const, const2, fp
fert_future
manure_demand
till	Tillage
plant	Planting	option
harvest	Harvest	option
kill	Kill
harvest_kill	Harvest and kill	option
rot_reset	Reset to beginning of rotation
pest_apply	Pesticide application	option, const, const2, fp
graze	Grazing	option
grow_init	Initiate growing season for HRU-lte
grow_end	End growing season for HRU-lte
drain_control	Drainage water management
divert	Divert water
res_demand	Demand from a reservoir
flow_control	Flow control for water allocation
tile_control	Tile flow control for saturated buffers
impound_off	Turn off impounded water (paddy or wetland)
impound_on	Turn on impounded water (paddy or wetland)
weir_height	Adjust weir height (paddy)
puddle
hru_fr_update	HRU area fraction change
lu_change	Land use change
p_factor	Update USLE P factor
contour	Contouring
stripcrop	Strip cropping
terrace	Terracing
tile_install	Install tile drainage
septic_install	Install septic tank
fstrip_install	Install filterstrip
grassww_install	Install grass waterway
user_def_bmp	User user-defined BMP reductions
chan_change
burn	Burning
cn_update	Update Curve Number	option, const, const2
pheno_reset