Editing v0.34:Soil

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{{Quality|Exceptional}}
'''Soil''' is the name for the various kinds of ground that can be [[farming|planted]] on (both above and below ground) 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 you or I generally don't associate that substance with "growing plants".

{| class="wikitable" cellspacing="0" border="1" cellpadding="5"
! Topsoil
! Tile
|-
|[[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 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 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}}
|-
! Ocean Floor
! Tile
|-
|[[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]]
! Tile
|-
|[[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}}
|-
! Clay
! Tile
|-
|[[Clay]]||{{Raw Tile|▓|4:6:0}}{{Raw Tile|.|4:0}}
|-
|[[Clay loam]]||{{Raw Tile|▒|4:7:0}}{{Raw Tile|.|4:0}}
|-
|[[Sandy clay]]||{{Raw Tile|▒|4:6:0}}{{Raw Tile|.|4:0}}
|-
|[[Silty clay]]||{{Raw Tile|▓|4:7:0}}{{Raw Tile|.|4:0}}
|-
|[[Fire clay]]||{{Raw Tile|▓|4:6:0}}{{Raw Tile|.|4:0}}
|}
'''Notes:'''
* 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]].
* The "clay" types listed at the bottom can be used for making ceramic items. Fire clay produces [[stoneware]], while the other types produce [[earthenware]].

In previous versions, types and quantities of available soils were listed at the bottom right of the fortress location selection screen; in the current version, however, it will only indicate the presence of soil and whether it can be used as [[sand]] or [[clay]].

Note, however, that you may only [[farming|plant]] cave [[crop|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 [[stone|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 [[Smoothing|smooth]]ed, so it is more difficult to make high value rooms, or pierce [[aquifer]]s.  Also, since soil cannot be smoothed, 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. Furrowed soil — including furrowed subterranean soil — will gradually smooth itself out, at which point grass and other vegetation will begin to grow. 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.

'''Trees and Shrubs'''

Once you discover the [[caverns]], subterranean trees and shrubs will begin to grow on any subterranean soil.

{{v0.34 soil}}

{{Category|Soil Layers|*}}