posted 15 years ago
I have made a drawing of rainwater being made to work as hard as it can before reaching the sea and another how quickly the water goes to the sea if it is not held up .
It does not sound as if a few ponds and puddles could make much difference to the water table but in India a Arevedic doctor went to help in a village but found they wanted water more than health and so he decided to reinstate old ponds because there was such a shortage of water and after a few years the water table which had been dropping rose and some rivers that had dried came back to life so it was Rajendra Singhs experience that this happened. Maybe in india fif an idea like this gets taken up you have ponds made for each village and farmers start to hold up run off water, have ponds too, so there begin to be a considerable amount of pounds.
Geoff Lawson’s you tube video -Permaculture Water Harvesting- mentions that if you hold water in a series of canals one below the other the water from the higher one overflowing into the lower then the water will have time to permeate the soil wetting deep into it and he says that in time you should get springs lower down.
Bill Mollison in. his you tube videos “dryland permaculture strategies” mentions how dykes, berms, the berms work like stop dams, made in response to Roosevelt’s demand to remedy problems of drought and soil loss, hold up water, the fall off from a rain storm, creating a damper soil were the water has been held and as these berms where very high shade in which lots of plants grow.
Bill Mollison also talks about a machine, made by Bob Dickenson of an engineer of Tucson Arizona, that dents, imprints, the desert leaving smallish pits in it that catch seed and bits of dry manure and how the water caught in these, wets the soil below to a greater depth than it is wet in other parts of the area which small difference allows the grass seed caught in the pit to grow. It is hard to believe is how much a small amount of water can do so much but the agricultural engineer Bob Dickenson had a bit of desert turned in to prairie to prove it.
These water harvesting ideas that better the water table are ideas that don’t seem so logical to me to me but enough people say that a bit of water, held up, can make a big difference and they are people of enough fame and seem to be so efficient that I believe it.
Sepp Holzer mentions that his ponds keep the soil damp, and he has been gardening with ponds for a long time and is a very successful farmer. He says that together with other things, a good cover of mulches, and a lot of shade from plants and trees, the humid air created by so many plants, a soil full of roots both deep and shallow that help water penetration, he does not have to irrigate his land. His land is a on a very steep south facing slope, drying out is a problem with south facing slopes.
He explains to South Americans that if the soils of highland took up more water there would be less likely hood of flooding they have been suffering from recently, downstream in his you tube video -Work in the Ecuador against Natural Disasters- that is unfortunately in Spanish though the written title is in English.,
The organization “Excellent” have the same experience of the value of holding up water with their sand dams in Kenya. They have lots of videos of these in you tube.
Peter Andrews in Australia has also been successful with his dry and salting up land and his main enfasis is on the importance of slowing down the course of rivers, creating meanders and blocking up rivers with water plants to stop the water moving too fast. He says that bodies of water are the kidneys and livers of the land and we have to reinstate them.
There is a society in North America that looks to create meanders in rivers with prizes for the best meander creators, I came across them somewhere on the internet.
The first drawing is of how water is wasted if it is not absorbed by the land or taken up in ponds Agri rose macaskie.
tain-drains-into-sea.jpg