posted 14 years ago
Trees that grow in water have pores on there lower trunks that take in oxygen to provide it to their roots. I got that from a great book on Trees called Trees by Roland Ennos, who talks about how trees work, how they fortify their wood or make it more elastic as needed, so that the tree will stand up and how they pull water up to their leaves, and such very interesting things. It is not too long and it is great.
He also say manglares and swamp cypreses have knees sticking out of the water to catch oxygen for their roots.
Sepp Holzer aligns his poonds so that the length is in the same direction as the prevailing winds, so that the winds can oxyginate the ponds running right down their length.
I should think that is when some other alignment is not necessary because it will catch more sun and create a hotter area around the pool.
There is an interesting you tube video on the "pulser pump", by a very ecological man called gaiatechnician, you get water draining down a pipe and swallowing air as it goes down and the air bubbles swallowed push water back out again along another tube in gasps, or very noisy whoshes, i think i heard a noise like this in a sepp holzer video and does not he have near the house a water wheel, that would also pump up water?
My grandmother had a pond in a bomb hole in the front feild as it was callled it was the field nearest the ouse and another at the other end of the farm. There were ponds of the sort all over that bit of the country, it was closeish to liverpool and it had fish in it and no one worried about them getting oxygen.
I did once erad about and try out putting a pond in a big bowl sunken into the garden. I had i read that the forces in it would equilibrate and the water did not start to stink so i suppose that is what happened. It would seem as if Feral is right. I think that sepp holzer just has to try everything he hears about, he is so energetic and able so, need it or not, he works out how to optimize the oxygen in his ponds. Maybe more oxygen allows him to have more fish. agri rose macaskie.