07-24-2014, 02:50 PM
Rural Areas
In rural areas, rain water harvesting is taken up considering watershed as a unit. Surface spreading techniques are common since space for such systems is available in plenty and quantity of recharged water is also large. Following techniques may be adopted to save water going waste through slopes, rivers, rivulets and nalas.
Rain Water Harvesting Through Gully Plug
Gully Plugs are built using local stones, clay and bushes across small gullies and streams running down the hill slopes carrying drainage to tiny catchments during rainy season.
Gully Plugs help in conservation of soil and moisture.
The sites for gully plugs may be chosen whenever there is a local break in slope to permit accumulation of adequate water behind the bunds.
Rain Water Harvesting Through Contour Bund
Contour Bunds are effective methods to conserve soil moisture in watershed for long duration.
These are suitable in low rain fall areas where monsoon run off can be impounded by constructing bunds on the sloping ground all along the contour of equal elevation.
Flowing water is intercepted before it attains the erosive velocity by keeping suitable spacing between bunds.
Spacing between two contour bunds depends on the slope the area as the permeability of the soil. Lesser the permeability of soil, the close should be spacing of bunds.
Contour bunding is suitable on lands with moderate slopes without involving terracing.
![[Image: harvesting4.png]](http://www.frontdesk.co.in/big/bs/harvesting4.png)
In rural areas, rain water harvesting is taken up considering watershed as a unit. Surface spreading techniques are common since space for such systems is available in plenty and quantity of recharged water is also large. Following techniques may be adopted to save water going waste through slopes, rivers, rivulets and nalas.
Rain Water Harvesting Through Gully Plug
Gully Plugs are built using local stones, clay and bushes across small gullies and streams running down the hill slopes carrying drainage to tiny catchments during rainy season.
Gully Plugs help in conservation of soil and moisture.
The sites for gully plugs may be chosen whenever there is a local break in slope to permit accumulation of adequate water behind the bunds.
Rain Water Harvesting Through Contour Bund
Contour Bunds are effective methods to conserve soil moisture in watershed for long duration.
These are suitable in low rain fall areas where monsoon run off can be impounded by constructing bunds on the sloping ground all along the contour of equal elevation.
Flowing water is intercepted before it attains the erosive velocity by keeping suitable spacing between bunds.
Spacing between two contour bunds depends on the slope the area as the permeability of the soil. Lesser the permeability of soil, the close should be spacing of bunds.
Contour bunding is suitable on lands with moderate slopes without involving terracing.