> For the complete documentation index, see [llms.txt](https://swatplus.gitbook.io/io-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swatplus.gitbook.io/io-docs/introduction-1/landuse-and-management/ovn_table.lum/name_ovn.md).

# name (ovn\_table.lum)

The overland flow Manning's n class name is a primary key referenced by [ov\_mann](/io-docs/introduction-1/landuse-and-management/landuse.lum/ov_mann.md) in [**landuse.lum**](/io-docs/introduction-1/landuse-and-management/landuse.lum.md). All names in the **ovn\_table.lum** file must be unique.

| Name             | Land use/tillage type       | Treatment          |
| ---------------- | --------------------------- | ------------------ |
| fallow\_nores    | Fallow                      | No residue         |
| convtill\_nores  | Conventional tillage        | No residue         |
| convtill\_res    | Conventional tillage        | Residue            |
| chisplow\_nores  | Chisel plow                 | No residue         |
| chisplow\_res    | Chisel plow                 | Residue            |
| falldisk\_res    | Fall disking                | Residue            |
| notill\_nores    | No tillage                  | No residue         |
| notill\_0.5-1res | No tillage                  | 0.5-1 t/ha residue |
| notill\_2-9res   | No tillage                  | 2-9 t/ha residue   |
| range\_sparse    | Rangeland with sparse cover | ---                |
| range\_20cover   | Rangeland with 20% cover    | ---                |
| shortgrass       | Short grass prairie         | ---                |
| densegrass       | Dense grass                 | ---                |
| bermudagrass     | Bermudagrass                | ---                |
| forest\_light    | Light forest                | ---                |
| forest\_med      | Medium forest               | ---                |
| forest\_heavy    | Heavy forest                | ---                |
| urban\_asphalt   | Urban area with asphalt     | ---                |
| urban\_concrete  | Urban area with concrete    | ---                |
| urban\_rubble    | Urban area with rubble      | ---                |