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Editing 40d:Irrigation
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'''Irrigation''' is the process of making rocky ground suitable for [[farming]]. This is done by [[flood]]ing it with [[water]]; when the water evaporates, the tiles are labeled as "muddy". This is also called '''muddying''' the floor, as the dry floor tile is then a "muddy <type of stone> floor". Inside [[cave]]s, [[rock]] cavern floor tiles that are covered with water instantly become muddy tiles, which you can then build [[farm plot]]s on. | '''Irrigation''' is the process of making rocky ground suitable for [[farming]]. This is done by [[flood]]ing it with [[water]]; when the water evaporates, the tiles are labeled as "muddy". This is also called '''muddying''' the floor, as the dry floor tile is then a "muddy <type of stone> floor". Inside [[cave]]s, [[rock]] cavern floor tiles that are covered with water instantly become muddy tiles, which you can then build [[farm plot]]s on. | ||
− | Once muddied, | + | Once muddied, never need to be re-irrigated, unless the muddying is removed by dwarven construction (see below). "Muddied" tiles are not technically wet once any actual water is gone, and damp stone or soil (from nearby water sources) will not cause muddying. |
There are several methods for getting the water onto (and then off of) the floor tiles. Dwarf Fortress uses reasonably-realistic water dynamics, including measures of [[water depth]]. A depth of 7 is full, depths of 1 will evaporate, leaving the stone wet and thus suitable for farming. Your goal in irrigation is to get a section of ground to be 1/7s, so it will evaporate to muddy. Usually it can't be avoided that part of the section will be flooded with higher levels, but water will disperse and eventually evaporate. If the water level gets too high and no 1/7 tiles exist (or not for long, replaced by shifting 2/7 tiles), the water will not evaporate. | There are several methods for getting the water onto (and then off of) the floor tiles. Dwarf Fortress uses reasonably-realistic water dynamics, including measures of [[water depth]]. A depth of 7 is full, depths of 1 will evaporate, leaving the stone wet and thus suitable for farming. Your goal in irrigation is to get a section of ground to be 1/7s, so it will evaporate to muddy. Usually it can't be avoided that part of the section will be flooded with higher levels, but water will disperse and eventually evaporate. If the water level gets too high and no 1/7 tiles exist (or not for long, replaced by shifting 2/7 tiles), the water will not evaporate. |