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| | ==Overview== | | ==Overview== |
| − | [[File:Tilley et al 2014 Schematic of the Vertical Flow Constructed Wetland.jpg|thumb|Schematic of a vertical subsurface flow constructed wetland: Water flows through pipes on the subsurface of the ground through the root zone to the ground.]]
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| | Constructed wetlands are similar to [[SWM ponds]] in function and design, with the most significant difference being that they are designed to incorporate shallow zones for wetland [[plants]]. A facility is normally characterized as a wetland if shallow zones (<0.5 m deep) make up more than 70 % of its volume. | | Constructed wetlands are similar to [[SWM ponds]] in function and design, with the most significant difference being that they are designed to incorporate shallow zones for wetland [[plants]]. A facility is normally characterized as a wetland if shallow zones (<0.5 m deep) make up more than 70 % of its volume. |
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| | !Vertical sub-surface flow | | !Vertical sub-surface flow |
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| − | |[[File:Schematic of the Free Water Surface Constructed Wetland.jpg|thumb|Schematic of a free-water surface constructed wetland: It aims to replicate the naturally occurring processes, where particles settle, pathogens are destroyed, and organisms and plants utilize the nutrients.]] | + | |[[File:Schematic of the Free Water Surface Constructed Wetland.jpg|frameless|Schematic of a free-water surface constructed wetland: It aims to replicate the naturally occurring processes, where particles settle, pathogens are destroyed, and organisms and plants utilize the nutrients.]] |
| − | |[[File:Tilley et al 2014 Schematic of the Horizontal Subsurface Flow Constructed Wetland.jpg|thumb|Schematic of the Horizontal Subsurface Flow Constructed Wetland: Water flows horizontally through the bed.]] | + | |[[File:Tilley et al 2014 Schematic of the Horizontal Subsurface Flow Constructed Wetland.jpg|frameless|Schematic of the Horizontal Subsurface Flow Constructed Wetland: Water flows horizontally through the bed.]] |
| − | |[[File:Tilley et al 2014 Schematic of the Vertical Flow Constructed Wetland.jpg|thumb|Schematic of a vertical subsurface flow constructed wetland: Water flows through pipes on the subsurface of the ground through the root zone to the ground.]] | + | |[[File:Tilley et al 2014 Schematic of the Vertical Flow Constructed Wetland.jpg|frameless|Schematic of a vertical subsurface flow constructed wetland: Water flows through pipes on the subsurface of the ground through the root zone to the ground.]] |
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| | |Surface water||Minimal<br>Any surface flow can be slowed with check dams||Ponding is encouraged with check dams | | |Surface water||Minimal<br>Any surface flow can be slowed with check dams||Ponding is encouraged with check dams |