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10th International Rainwater Catchment Systems Conference
"Rainwater International 2001"
Mannheim, Germany - September 2001

Section 4: Rainwater Catchment in Agriculture

Paper 4.15

Recent Rainwater Harvesting Progresses in Iran

Ali Akbar Noroozi, Jamal Ghoddousi
Soil Conservation Watershed Management Research Center of Iran
P.O. Box: 13445-1136

Following the 8th IRCSA, held in Teheran, Iran in April 1997, various types of rainwater collection methods were studied in the northwest of Iran. These studies were based on some valuable experiences from other countries, which had been discussed during the conference.

The aim of this paper is to describe the most important results of the employed methods, including water spreading, micro-catchment systems for reforestation and water pounding using micro-catchment systems. The result of the studies have shown that in areas with limited rainfall, storing water in soil profile appears to be a key for survival for plant and domestic water supply in terms of rangeland improvement.

One has to keep in mind that even rainwater micro-catchment systems are having limitations in terms of applicability. Particularly in drought prone areas, rainwater harvesting is the only way to guarantee water supply.

However increase in natural plant composition, establishment of plantation, increasing spring discharges as well as underground gallery, so called qanat, are the most important results in the study areas. In order to promote the use of rainwater harvesting methods to supply water for different proposes, extending the use of water harvesting techniques and training programs on a national level are essential and imperative for sound rainfall management in water deficient regions.

The key points in this regard are as follows: (a)Feasibility of techniques to be used, (b)Reasonability of the techniques in economic terms , (c)Acceptability of the techniques by farmers, (d)Simplicity of the techniques in terms of design, layout, implementation and operation.

It has to be emphasized that in the study area all the above criteria were taken into consideration and more than 80 hectares of wasteland were rehabilitated using micro-catchment systems. In addition 25 water points supplying water for more than 500 head sheep were supplied through the construction of a flood water spreading system. The discharge of ten shallow wells and two Qanat systems was also increased.

PDF of full document (1pp, 7kb)

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