International Rainwater Catchment Systems Conference
Catchment: An Answer to the Water Scarcity of the Next Millennium."
Petrolina, Brazil - July 1999
Section 2: Wordwide Experiences of Rainwater Catchment Systems
Ancient And Contemporary Water Catchment Systems In
Manuel Anaya Garduņo
Institute of Natural Resources, Graduate College
Montecillo, Edo. de Mexico. Mexico
Mexico is rich in ancient and traditional technologies
(dating back to the Aztecs and Mayas) on natural resources management; however,
a growing demand for water and increasing costs of water supply for domestic
use and agriculture production are resulting in a need for Mexicans to maximize
the use of diverse water supplies.
In the near future it will be necessary to reinforce
programs and projects to face the increasing demand for water and to avoid serious
Mexico, a country with 200 million hectares, an average
annual rainfall of 700 mm and a population of 100 million people, has 1 400 000
million m3 water from rainfall. This gives an annual average of 14 000
m3/person, enough for domestic use and agriculture production.
Currently different water catchment systems are used in
Mexico: 1) for domestic use (water collection from roofs and paved land
surfaces) and 2) for agriculture production (microcatchments, contour ridges,
trapezoidal bunds, permeable rock dams, water spreading bunds, contour stone
bunds and others).
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