Editing 40d:Soil

'''Soil''' is the name for the various kinds of ground that can be [[farming|planted]] on without [[irrigation]] using [[water]].  In DF, the category of "Soil" includes all types of sand, clay, ooze and any "non-stone" layer equally, even if people generally don't associate that substance with "growing plants".

|[[Clay]]||{{Raw Tile|▓|4:6:0}}{{Raw Tile|.|4:0}}

|[[Clay loam]]||{{Raw Tile|▒|4:7:0}}{{Raw Tile|.|4:0}}

|[[Loam]]||{{Raw Tile|░|6:7:0}}{{Raw Tile|.|6:0}} {{Raw Tile|≈|1:1:1}}

|[[Loamy sand]]||{{Raw Tile|▒|6:6:1}}{{Raw Tile|.|6:1}} {{Raw Tile|≈|1:1:1}}

|[[Peat]]||{{Raw Tile|░|0:6:1}}{{Raw Tile|.|0:1}} {{Raw Tile|≈|1:1:1}}

|[[Sandy clay]]||{{Raw Tile|▒|4:6:0}}{{Raw Tile|.|4:0}}

|[[Sandy clay loam]]||{{Raw Tile|░|4:6:0}}{{Raw Tile|.|4:0}} {{Raw Tile|≈|1:1:1}}

|[[Sandy loam]]||{{Raw Tile|░|6:6:1}}{{Raw Tile|.|6:1}} {{Raw Tile|≈|1:1:1}}

|[[Silt]]||{{Raw Tile|▓|6:7:0}}{{Raw Tile|.|6:0}} {{Raw Tile|≈|1:1:1}}

|[[Silty clay]]||{{Raw Tile|▓|4:7:0}}{{Raw Tile|.|4:0}}

|[[Silty clay loam]]||{{Raw Tile|░|4:7:0}}{{Raw Tile|.|4:0}} {{Raw Tile|≈|1:1:1}}

|[[Silt loam]]||{{Raw Tile|▒|6:7:0}}{{Raw Tile|.|6:0}} {{Raw Tile|≈|1:1:1}}

|[[Pelagic clay]]||{{Raw Tile|░|4:6:0}}{{Raw Tile|.|4:0}} {{Raw Tile|≈|1:1:1}}

|[[Siliceous ooze]]||{{Raw Tile|▒|4:7:0}}{{Raw Tile|.|4:0}} {{Raw Tile|≈|1:1:1}}

|[[Calcareous ooze]]||{{Raw Tile|▒|4:7:0}}{{Raw Tile|.|4:0}} {{Raw Tile|≈|1:1:1}}

! [[Sand]]

|[[Sand (tan)]]||{{Raw Tile|░|6:4:1}}{{Raw Tile|≈|6:1}} {{Raw Tile|≈|1:1:1}}

|[[Black sand]]||{{Raw Tile|▓|0:6:1}}{{Raw Tile|≈|0:1}} {{Raw Tile|≈|1:1:1}}

|[[Red sand]]||{{Raw Tile|░|4:4:1}}{{Raw Tile|≈|4:1}} {{Raw Tile|≈|1:1:1}}

|[[White sand]]||{{Raw Tile|▓|7:6:1}}{{Raw Tile|≈|7:1}} {{Raw Tile|≈|1:1:1}}

|[[Yellow sand]]||{{Raw Tile|▓|6:6:1}}{{Raw Tile|≈|6:1}} {{Raw Tile|≈|1:1:1}}

* The "topsoil" types listed in the upper part of the table do '''not''' count as [[sand]] for [[glass]]making, even if their names include the word "sand" - only those in the "Sand" section at the bottom are usable for this purpose.

* The 3 "ocean floor" layers are only found under deep [[ocean]] tiles, usually far out from any embarkable site. Thus, they can rarely, if ever, be encountered in either [[fortress mode]] or [[adventurer mode]].

* Soil layers marked with {{Raw Tile|≈|1:1:1}} are capable of supporting an [[aquifer]].

When starting a new fortress, types and quantities of available soils are listed at the bottom right of the fortress location selection screen. In contrast to [[rock]] types, soil type names appear in brown, and are usually closest to the top of the list, and thus, closest to the surface of the ground. <!-- belongs in fortress-starting article -->

Note, however, that you may only [[farming|plant]] cave [[plant|flora]] if the tile is marked "[[Subterranean]]." To check this, go to the tile in {{k|k}} mode. <!-- belongs in a farming article -->

Digging into soil does not generate any byproduct materials, unlike digging in [[rock]], and also is a much faster process which makes it much easier to create storerooms and other large areas of empty space, and to train [[miner]]s.

Soil cannot be [[smooth]]ed, so it can be difficult to make high value rooms, or pierce [[aquifer]]s.  Also, since soil cannot be [[smooth]]ed, soil cannot be used to make [[fortification]]s.

Building a [[farm plot]] or [[road]] or removing a [[construction]] on top of soil will cause it to become "furrowed", making it appear with the {{Tile|≈|6:0}} and {{Tile|~|6:0}} tiles. Above-ground furrowed soil will gradually smooth itself out, at which point grass and other vegetation will begin to grow, while subterranean soil will remain furrowed indefinitely. Sand always appears as {{Tile|≈|6:0}} and {{Tile|~|6:0}} and cannot become furrowed - as such, sand roads do not last as long as those made on ordinary soil.