> 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/landscape-units/ls_unit.def/elements.md).

# elements

If elem\_tot = 1, there can be only one element in the Landscape Unit, whose number (id in rout\_unit.ele) is specified in this column. If elem\_tot >1, this column is followed by additional columns listing the elements included in the Landscape Unit, but those columns will not have a header. If there are several elements with consecutive numbers in a Landscape Unit, they can be listed by specifying the first one in one column and the last one with a hyphen in front of it in the next column.