The categories specified in the land cover/land use map will need to be reclassified
into SWAT land cover/plant types. The user has three options for reclassifying the
categories.
The first option is to use a land cover/land use lookup table that is built into the
ArcSWAT interface. The interface contains the USGS LULC and NLCD lookup tables
in the SWAT2012.mdb database that identifies the different SWAT land cover/plant
types used to model the various USGS LULC or NLCD land uses.
The second option is to type in the 4-letter SWAT land cover/plant type code for each
category when the land cover/land use map theme is loaded in the interface.
The third option is to create a user look up table that identifies the 4-letter SWAT code
for the different categories of land cover/land use on the map. The format of the look
up table is described in Section 3.3.