Difference between revisions of "v0.31:Irrigation"

Farming FAQ
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	How do you successfully breed and utilize animals(grazing, non-grazing and poultry)?
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Latest revision as of 09:03, 3 July 2012

xTATTEREDx · +FINE+ · *SUPERIOR* · ≡EXCEPTIONAL≡ · ☼MASTERWORK☼

v50.14 · v0.47 · v0.34 · v0.31.25 · v0.28 · v0.23

This article is about an older version of DF.

More Info · V

Irrigation is the process of adding water to a rock tile so that it can be farmed (before version 0.31.19 this included all underground tiles, not just rock tiles). This is done by flooding the tile with water. Any amount of water will suffice but the less water, the better — farms cannot be built on any square containing water of 2/7 or deeper. Tiles of depth 2/7 will flow into nearby tiles until the area is 1/7 if possible, so this is only an issue if deep water is placed in an enclosed area. Once the water has evaporated or been allowed to flow away, the tile will remain muddied unless a construction is built over it. Viewing the tile will cause it to display 'a pile of mud', 'a small pile of mud', or 'a dusting of mud' in its contents.

As of version 0.31.19, where underground farm plots were allowed on unmuddied soil, irrigation is only needed for biomes lacking soil (namely glaciers) and for making farm plots deep underground.

Farms can be built on unsuitable ground but doing so will display a warning message. If even a single square of the farm is not irrigated, it will be unusable.

Magma, for obvious reasons, cannot be used to irrigate but can cause fun.

Easy Irrigation[edit]

One obstacle to early irrigation is the time required to build mechanisms (which cannot be taken when embarking and take time to set up). They can also be daunting to newer players and mistakes can result in floods or famine - common sources of fun. The methods below are designed to work without mechanisms.

via Murky Pool[edit]

Most areas contain murky pools, which provide one of the quickest, simplest methods of starting a farm. Digging out an area near a murky pool and draining the pool into it is an easy way to make the ground muddy and farmable.

You should first locate a pool near where you wish to put the farm. While any finite water source works, you need to drain the excess water somehow or allow it to evaporate, so smaller pools are usually preferable. Once you find a good location, dig out the room and dig a tunnel that ends with only 1 tile between it and the pool. If you want to simply allow the water to evaporate after irrigation, the floorspace in the farm should be about 5 or 6 times that of the pool. Otherwise, you can dig another room out underneath the farm via stairs placed on the opposite side from the pool to drain the water after irrigation.

Finally, channel out the one tile between the tunnel and the pool and the water will flow in.

If you miscalculate the area, there are two possible outcomes, both easily solvable-

If the dug area is too large, some tiles will be left unmuddied. While muddying these squares is a lot of trouble and arguably not worth it, these tiles are perfect for seed stockpiles.
If the dug area is too small, there will be at least one tile of 2/7 depth. Until some of the water evaporates (which will still happen, albeit slower, in the 1/7 tiles), you won't be able to farm it. However, unless you've drastically miscalculated, dwarves will be able to wade through the water and dig more tiles to expand the farm to the correct size.

via Buckets[edit]

It is possible to irrigate an area by carrying water in buckets from virtually any source, such as a brook, a river, or a good-sized murky pool.

To do this, select a subterranean area to locate your farms. You must then dig out two identical rooms, one above the other. The bottom room is where your farms will eventually be built, and the top room is where the actual filling will occur. Once you have dug out both rooms, you will need to channel out the floor of the upper room, making sure to leave a walkway around the perimeter.

Once you've dug the channels in the upper room, you should have something like this:

Top Floor
++++
+..+    legend
+..+     . = channeled tile
++++     + = floor

Bottom Floor
++++
++++
++++
++++

(If you haven't dug the farm level by this point, you will have down ramps in your channeled tiles. Tunnel out the z-level below, as that is where your farms will be. Also note that if you carve the channels on the surface, the below farm will be listed as Above Ground, restricting certain crops.)

Try to think of it like this: dwarves won't fill a pond that they are standing in. Therefore, you must dig another room above the farm and channel out the floor, so they can pour water down into the room.

Next designate an activity zone over the channeled tiles on the upper room, and set it to "pit/pond". By default, the zone will be set as a pit. To change it to a pond, press P then f. (note: that's a CAPITAL P and then f, it took me three months of playing to figure that out)

If you designate each channeled tile individually as its own pond, you can quickly muddy your planned farm tiles- as only one dwarf can fill a pond activity zone at a time. Another bonus of this method is that you can control the spread of the water very precisely (unlike all other forms of irrigation).

As each pond tile gets its first filling of water (bringing it to 1/7 depth), dezone that pond tile, leaving behind an exact match of mud on the floor below. This process creates "a dusting of mud" on the floor below, which is all that is needed to plant underground crops. Place your farm plots over just these muddied tiles.

When you are finished, the lower floor will look like the following:

++++ 
+mm+    legend 
+mm+     m = muddied tile 
++++     + = floor

You can vary the basic square to any rectangle, so long as it remains 2 tiles wide or 2 tiles long. Otherwise, your dwarves will not be able to reach the central tiles.

If you accidentally add too much water, you can wait for some of the water to evaporate or spread to nearby tiles. Even so, as long as you keep an eye on the dwarves and dezone that pond tile on the upper gallery as soon as it is no longer necessary, you shouldn't have any problems.

Other ways of creating an upper irrigation gallery and a lower resulting farm level are possible, but this is left up to the fortress designers to experiment with. This is simply a guide for players just starting out.

Complex Irrigation[edit]

The following methods of irrigation take longer to build, but they are usually more reliable, look cooler and, of course, are more fun.

via Corkscrew Pump[edit]

This method ranks somewhere between easy and complex irrigation as it's set up relatively quickly while not necessarily looking as cool as the complex method. It needs a pump and a river/brook in a chasm though. A lake will do well too.

You start by digging out a tunnel of one tile and a rectangular room near the river exactly one level above the river. The floor of the room has to be at the same level as the surface of the river. It doesn't have to be walled on the side of the river as you'll need some open space for the water to get out. If you have dug it farther away from the river, you should dig another tunnel from the room to the water source so that the pumped in water can get out.

Secondly, at the end of the one tile wide tunnel you'll set up the pump. You'll need a free place next to the light green part of the pump for a dwarf to be able to operate it. It will only be operated once, so you don't need any axles or gears or waterwheels or whatever. Manual pump operation is all it takes.

After setting up the pump (whose dark green end has to be between the tunnel's walls) you can start pumping water into the room. If you have set up everything strategically smartly you should have a pump filling up the room with water. The water should flow through the room and out of it at the open side of the room. After having enough muddy ground tiles you can stop the dwarf from operating the pump and deconstruct it (the pump, not the dwarf!) if you like. After some time the water should have completely left the room or oozed away and you should have some beautiful muddy ground tiles to farm on.

You should also consider a bridge for the farmers to reach the farming plots. The bridge at the exit point of the water should be long enough so that the water won't flow over it and damp the ground at its far end. You can do without that second bridge though as you can deconstruct the pump after the irrigation. So there is already a passage for the farmers to get to the plots.

Good luck! Here's a diagram of this method:

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via Reservoir[edit]

A reservoir system which provides enough water for 8 fields. Upper level

The irrigated bottom level.

First you need a sufficient source of water. The best would be a brook or river, but it is also possible to use a bigger murky pool (it depends on how many fields you want to irrigate).

For every 7x7 farm plot you need

a floodgate
a hatch cover
4 mechanisms (for linking)
a door

You also need

2 Mechanisms for the levers
at least one additional door (if you have enough time to set up a wall or floodgate as well)

Use the following pattern:

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After your miners have dug the pattern, channel the tile under each hatch cover's location. Now place the hatch covers and link them to lever 1. After that you can place the floodgates and link them to lever 2. To start the irrigation, channel out the last tile to the river / murky pool. Pull the floodgate-lever to fill the reservoirs and pull it again when they are 7/7. Finally pull the hatch cover's lever and release the water to the lower level.

This reservoir contains 70 units of water (10x7). 9 units of water are lost to the ground of the reservoir (61 left). Roughly 10 units evaporate while spreading (~51). The water should be just enough to cover the whole farm plot and evaporate quickly.

@@ Line 1: / Line 1: @@
-{{av}}
+{{quality|Masterwork|16:11, 14 August 2010 (UTC)}}{{av}}
-{{Quality|Exceptional}}
-Irrigation is is the process of adding water to an underground or rock tile so that it can be {{L|farm plot|farmed}}. This is done by flooding the tile with {{L|water}}. Any amount of water will suffice but the less water, the better—farms cannot be built on any square containing water of {{L|water depth|2/7 or deeper}}. Tiles of depth 2/7 will flow into nearby tiles until the area is 1/7 if possible so this is only an issue if deep water is placed in an enclosed area.
+Irrigation is the process of adding water to a rock tile so that it can be [[farm plot|farmed]] (before version 0.31.19 this included all underground tiles, not just rock tiles). This is done by flooding the tile with [[water]]. Any amount of water will suffice but the less water, the better — farms cannot be built on any square containing water of [[water depth|2/7 or deeper]]. Tiles of depth 2/7 will flow into nearby tiles until the area is 1/7 if possible, so this is only an issue if deep water is placed in an enclosed area. Once the water has evaporated or been allowed to flow away, the tile will remain [[mud]]died unless a [[construction]] is built over it. Viewing the tile will cause it to display 'a pile of mud', 'a small pile of mud', or 'a dusting of mud' in its contents.
-Once the water has evaporated or been allowed to flow away, the tile will remain muddied unless a {{L|construction}} is built over it. Viewing the tile will cause it to display 'a pile of mud', 'a small pile of mud', or 'a dusting of mud' in its contents.
+As of version 0.31.19, where underground farm plots were allowed on unmuddied [[soil]], irrigation is only needed for [[biome]]s lacking soil (namely [[glacier]]s) and for making farm plots deep underground.
-Farms must be built on muddy tiles. Farms cannot be built on underground tiles (rock or soil) unless those tiles have been muddied. This is not the case for above ground farming, where you can {{L|gather plants}} and {{L|Still|brew}} them for alcohol or even farm in above ground soil with the gathered seeds. But underground farming is a generally quicker, safer and more reliable (and dwarven) way to gain {{L|food}} and {{L|alcohol}}. Plus, you can only embark with seeds for underground crops. So, it is useful to know how to irrigate with as little investment in workshops and mechanisms as possible.
 Farms can be built on unsuitable ground but doing so will display a warning message. If even a single square of the farm is not irrigated, it will be unusable.
-{{L|Magma}}, for obvious reasons, cannot be used to irrigate{{verify}}  but can cause {{L|fun}}.
+[[Magma]], for obvious reasons, cannot be used to irrigate but can cause [[fun]].
 == Easy Irrigation ==
-One obstacle to early irrigation is the time required to build mechanisms (which cannot be taken when {{L|embark|embarking}} and take time to set up). They can also be daunting to newer players and mistakes can result in floods or famine - common sources of {{L|fun}}. The methods below are designed to work without mechanisms.
+One obstacle to early irrigation is the time required to build mechanisms (which cannot be taken when [[embark|embarking]] and take time to set up). They can also be daunting to newer players and mistakes can result in floods or famine - common sources of [[fun]]. The methods below are designed to work without mechanisms.
 === via Murky Pool===
-Most areas contain {{L|murky pool|murky pools}}, which provide one of the quickest, simplest methods of starting a farm.  Digging out an area near a murky pool and draining the pool into it is an easy way to make the ground muddy and farmable.
+Most areas contain [[murky pool|murky pools]], which provide one of the quickest, simplest methods of starting a farm.  Digging out an area near a murky pool and draining the pool into it is an easy way to make the ground muddy and farmable.
-You should first locate a pool near where you wish to put the farm.  While any finite water source works, you need to drain the excess water somehow or allow it to [[evaporate]], so smaller pools are usually preferable. Once you find a good location, dig out the room and dig a tunnel that ends with only 1 tile between it and the pool. If you want to simply allow the water to evaporate after irrigation, the floorspace in the farm should about about 5 or 6 times that of the pool.  Otherwise, you can dig another room out underneath the farm via stairs placed on the opposite side from the pool to drain the water after irrigation.
+You should first locate a pool near where you wish to put the farm.  While any finite water source works, you need to drain the excess water somehow or allow it to [[evaporate]], so smaller pools are usually preferable. Once you find a good location, dig out the room and dig a tunnel that ends with only 1 tile between it and the pool. If you want to simply allow the water to evaporate after irrigation, the floorspace in the farm should be about 5 or 6 times that of the pool.  Otherwise, you can dig another room out underneath the farm via stairs placed on the opposite side from the pool to drain the water after irrigation.
 Finally, channel out the one tile between the tunnel and the pool and the water will flow in.
@@ Line 28: / Line 25: @@
 :* If the dug area is too large, some tiles will be left unmuddied. While muddying these squares is a lot of trouble and arguably not worth it, these tiles are perfect for seed stockpiles.
-:* If the dug area is too small, there will be at least one tile of 2/7 depth. Until some of the water {{L|evaporation|evaporates}} (which will still happen, albeit slower, in the 1/7 tiles), you won't be able to farm it. However, unless you've drastically miscalculated, dwarves will be able to wade through the water and dig more tiles to expand the farm to the correct size.
+:* If the dug area is too small, there will be at least one tile of 2/7 depth. Until some of the water [[evaporation|evaporates]] (which will still happen, albeit slower, in the 1/7 tiles), you won't be able to farm it. However, unless you've drastically miscalculated, dwarves will be able to wade through the water and dig more tiles to expand the farm to the correct size.
 === via Buckets===
-If you have access to a large source of water such as a {{L|brook}} or {{L|river}}, it is possible to irrigate an area with {{l|buckets}}.
+It is possible to irrigate an area by carrying water in [[buckets]] from virtually any source, such as a [[brook]], a [[river]], or a good-sized [[murky pool]].
-To do this, find a subterranean area where you plan to locate your farm. Tunnel two z layers of the same size, as the upper z level will be the irrigation gallery for our farms. The irrigation will fall down to the desired tiles on the z-level below, creating our mud for farming.
+To do this, select a subterranean area to locate your farms. You must then dig out two identical rooms, one above the other. The bottom room is where your farms will eventually be built, and the top room is where the actual filling will occur. Once you have dug out both rooms, you will need to channel out the floor of the upper room, making sure to leave a walkway around the perimeter.
-{{L|channel|Channel}} the upper gallery in the following pattern:
+Once you've dug the [[channel|channels]] in the upper room, you should have something like this:
+ Top Floor
   ++++
   +..+    legend
@@ Line 43: / Line 41: @@
   ++++     + = floor
-(If you haven't {{L|Dig|dug}} the farm level by this point, you will have down ramps in your channeled tiles. Tunnel out the z-level below, as that is where your farms will be.)
+ Bottom Floor
+ ++++
+ ++++
+ ++++
+ ++++
+(If you haven't [[Dig|dug]] the farm level by this point, you will have down ramps in your channeled tiles. Tunnel out the z-level below, as that is where your farms will be. Also note that if you carve the channels on the surface, the below farm will be listed as Above Ground, restricting certain crops.)
+Try to think of it like this: dwarves won't fill a pond that they are standing in. Therefore, you must dig another room above the farm and channel out the floor, so they can pour water ''down'' into the room.
+Next designate an [[activity zone]] over the channeled tiles on the upper room, and set it to [[pond|"pit/pond"]]. By default, the zone will be set as a pit.  To change it to a pond, press {{k|P}} then {{k|f}}. (note: that's a CAPITAL P and then f, it took me three months of playing to figure that out)
-{{L|activity zone|Designate}} the channeled tiles on the upper gallery as {{L|pond|ponds}}. If you designate each channeled tile individually as a pond, you can quickly muddy your planned farm tiles as only one dwarf can fill a pond activity zone, and you can control the spread of the water precisely. As each pond tile gets its first filling of water (bringing it to 1/7 depth), dezone that pond tile, and this will result in an exact match of mud on the floor below.
+If you designate each channeled tile individually as its own pond, you can quickly muddy your planned farm tiles- as only one dwarf can fill a pond activity zone at a time. Another bonus of this method is that you can control the spread of the water very precisely (unlike all other forms of irrigation).
-This process creates "a dusting of mud" on the floor below, which is all that is needed to plant underground crops. Place your farm plots over just these muddied tiles.
+As each pond tile gets its first filling of water (bringing it to 1/7 depth), dezone that pond tile, leaving behind an exact match of mud on the floor below. This process creates "a dusting of mud" on the floor below, which is all that is needed to plant underground crops. Place your farm plots over just these muddied tiles.
-Lower floor will look like the following:
+When you are finished, the lower floor will look like the following:
   ++++
@@ Line 56: / Line 64: @@
   ++++     + = floor
-You can vary the basic square to any rectangle, so long as you keep the rectangle 2 wide or 2 long, and this will result in quick and efficient muddy tile creation on the floor below.
+You can vary the basic square to any rectangle, so long as it remains 2 tiles wide or 2 tiles long. Otherwise, your dwarves will not be able to reach the central tiles.
-If you accidentally add too much water, you can wait for some of the water to evaporate or for it to spread to nearby tiles. However, as long as you keep an eye on the dwarves and dezone that pond tile on the upper gallery as soon as a dwarf dumps a bucket of water, you shouldn't have this occur.
+If you accidentally add too much water, you can wait for some of the water to evaporate or spread to nearby tiles. Even so, as long as you keep an eye on the dwarves and dezone that pond tile on the upper gallery as soon as it is no longer necessary, you shouldn't have any problems.
-Other ways to easily create an upper irrigation gallery and a lower resulting farm level are possible. This is left up to the fortress designers to experiment with
+Other ways of creating an upper irrigation gallery and a lower resulting farm level are possible, but this is left up to the fortress designers to experiment with. This is simply a guide for players just starting out.
 == Complex Irrigation ==
-The following method of irrigation takes longer to build, but it is more reliable, looks cooler and of course it's more {{L|fun}}.
+The following methods of irrigation take longer to build, but they are usually more reliable, look cooler and, of course, are more [[fun]].
+=== via Corkscrew Pump ===
+This method ranks somewhere between easy and complex irrigation as it's set up relatively quickly while not necessarily looking as cool as the complex method. It needs a [[pump]] and a river/brook in a chasm though. A lake will do well too.
+You start by digging out a tunnel of one tile and a rectangular room near the river exactly one level above the river. The floor of the room has to be at the same level as the surface of the river. It doesn't have to be walled on the side of the river as you'll need some open space for the water to get out. If you have dug it farther away from the river, you should dig another tunnel from the room to the water source so that the pumped in water can get out.
+Secondly, at the end of the one tile wide tunnel you'll set up the pump. You'll need a free place next to the light green part of the pump for a dwarf to be able to operate it. It will only be operated once, so you don't need any axles or gears or waterwheels or whatever. Manual pump operation is all it takes.
+After setting up the pump (whose dark green end has to be between the tunnel's walls) you can start pumping water into the room. If you have set up everything strategically smartly you should have a pump filling up the room with water. The water should flow through the room and out of it at the open side of the room. After having enough muddy ground tiles you can stop the dwarf from operating the pump and deconstruct it (the pump, not the dwarf!) if you like. After some time the water should have completely left the room or oozed away and you should have some beautiful muddy ground tiles to farm on.
+You should also consider a bridge for the farmers to reach the farming plots. The bridge at the exit point of the water should be long enough so that the water won't flow over it and damp the ground at its far end. You can do without that second bridge though as you can deconstruct the pump after the irrigation. So there is already a passage for the farmers to get to the plots.
+Good luck! Here's a diagram of this method:
+{{diagram|spaces=yes|\
+ ▓▓▓▓▓▓▓▓▓[#00F]≈[#00F]~         [#FFF]l[#FFF]e[#FFF]g[#FFF]e[#FFF]n[#FFF]d
+ ▓...▓▓▓▓[#00F]≈[#00F]~[#00F]≈      ▓  stone
+ ▓.....[#880]%[#880]%[#00F]~[#00F]≈[#00F]~      .  floor
+ ▓...▓▓▓[#0F0].[#FFF]+[#FFF]+[#FFF]+      [#880]%[#880]% pump
+ ▓...▓▓▓▓[#00F]~[#00F]≈[#00F]~      [#00F]≈[#00F]~ water
+ ▓.......[#FFF]+[#FFF]+[#FFF]+      [#FFF]+  "bridge" (constructed floor tiles)
+ ▓...▓▓▓[#00F]≈[#00F]~[#00F]≈[#00F]~
+ ▓▓▓▓▓[#00F]~[#00F]≈[#00F]~[#00F]≈[#00F]~
+}}
 === via Reservoir ===
-[[Image:Irrigation_step2.png‎|thumb|right|A reservoir system which provides enough water for 8 fields. upper level]]
+[[Image:Irrigation1.png‎|thumb|right|A reservoir system which provides enough water for 8 fields. Upper level]]
-[[Image:Irrigation_bottomlevel.png‎|thumb|right|The irrigated bottom level. Dormitory and dining room are just temporary (because the irrigation system has been set up first) and can be build to stockpiles later.]]
+[[Image:Irrigation2.png‎|thumb|right|The irrigated bottom level.]]
-First you need a sufficient source of {{L|water}}. The best would be a {{L|brook}} or {{L|river}}, but it is also possible to use a bigger murky pool (it depends on how much fields you want to irrigate).
+First you need a sufficient source of [[water]]. The best would be a [[brook]] or [[river]], but it is also possible to use a bigger murky pool (it depends on how many fields you want to irrigate).
 For every 7x7 farm plot you need
-:* a floodgate
+:* a [[floodgate]]
-:* a hatch cover
+:* a [[hatch cover]]
-:* 4 mechanisms (for linking)
+:* 4 [[mechanism]]s (for linking)
-:* a door
+:* a [[door]]
 You also need
-:* 2 Mechanisms for the levers
+:* 2 Mechanisms for the [[lever]]s
 :* at least one additional door (if you have enough time to set up a wall or floodgate as well)
@@ Line 108: / Line 140: @@
 lower level, farms}}
-After your miners have dug the pattern, channel the tile under each hatch cover's location. Now place the hatch covers and link them to lever 1. After that you can place the floodgates and link them to lever 2. To start the irrigation channel out the last tile to the river / murky pool. Pull the floodgate-lever to fill the reservoirs and pull it again when they are 7/7. Finally pull the hatch cover-lever and release the water to the lower level.
+After your miners have dug the pattern, channel the tile under each hatch cover's location. Now place the hatch covers and link them to lever 1. After that you can place the floodgates and link them to lever 2. To start the irrigation, channel out the last tile to the river / murky pool. Pull the floodgate-lever to fill the reservoirs and pull it again when they are 7/7. Finally pull the hatch cover's lever and release the water to the lower level.
 This reservoir contains 70 units of water (10x7). 9 units of water are lost to the ground of the reservoir (61 left). Roughly 10 units evaporate while spreading (~51). The water should be just enough to cover the whole farm plot and evaporate quickly.
 {{Farming FAQ}}
+{{Category|Agriculture}}
+{{Category|Guides}}