[permaculture] Floating Gardens (wide shade trees)
paul at richsoil.com
Mon Feb 7 10:40:18 EST 2005
Do you know of a web page that can tell me more about doing this?
--- DAVIDMATTHEWEDGE at aol.com wrote:
> Paul, you wrote:
> What would be the impact of a floating swamp garden on the oxygen exchange
> in the water?
> Here's the beginning of an answer:
> In addition to the gaseous exchange of the plants in a floating swamp
> garden, which could vary depending on species, partial shading of a pond, by
> anything, causes movement and additional oxygenation of the water.
> Cool water in the shaded areas flows to the bottom, surface water is
> drawn into the shaded area to replace it, etc. In this way much more of the
> water in the pond comes into contact with the air than in a pond in which all of
> the water is exposed to sunlight or is shaded.
> Thes floating gardens also mean that much more edge, that many more bugs for
> the trout, etc.
> I hope this is useful.
> David Edge
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