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trenches with flowing water

Posted by drakens 5a (My Page) on
Mon, May 8, 06 at 13:03

I recall reading a while back about how some Amerindians used to use trenches with flowing water between their crops to prolong the growing season. Has anyone ever tried this? I'm wondering if this would also make a change in the zone. Could this technique allow for a half a zone warmer, or maybe as much as a one zone difference such as zone 5 to zone 6? It seems like an easy experiment, just dig a trench and put a pond pump in to create the flow.


Follow-Up Postings:

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RE: trenches with flowing water

Just recirculating the quantity of water needed to fill the trenches would not make a sufficient difference. The water temperature would continue to lower in pace with the season.

What is required is a supply of water at a constant temperature, such as water from a large spring or spring fed stream.

Jim


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RE: trenches with flowing water

Below is a link to a big government document, PDF. The Google snippet has parts of sentences about pumping water "for temperature control" and returning it.

Googling for irrigation and "for temperature control" pulls up about 12 thousand ghits. The link below is the only one on the first page where the snippet reads like what your are thinking about.

Here is a link that might be useful: Big dot gov PDF on irrigating for temperature control


 
 

 

 


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