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Rainwater Harvesting Techniques for Irrigation

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Abstract

Experience in China over recent decades has shown that RWH cannot only provide water for domestic use but also for supplemental irrigation. As already noted, RWH systems are mini-sized water resource schemes. The amount of rainwater stored in a RWH system is generally very limited requiring very efficient use. RWH-based irrigation is therefore a special kind of water-saving irrigation. It uses much less water than conventional water-saving irrigation and is more appropriately called “low rate irrigation” (LORI). Investigations have shown that LORI water supplied to the crop only consists of 10–15 % of the total crop water consumption over the whole growing season. Most of the water used by the crop is from natural rainfall. Some experts doubt that such a small amount of water can have any effect on the crop yield.

Keywords

Rainwater harvesting irrigation Low rate irrigation Deficit irrigation Water-saving irrigation 

References

  1. Blank H. Optimal irrigation decisions with limited water (D). Ph.D. thesis, Department of Civil Engineering, Colorado State University, Fort Collins, CO; 1975.Google Scholar
  2. Cheng M, et al. Rainwater harvesting water saving irrigation technology in the semi-arid loess hilly area of north China. Zhengzhou, China: Yellow River Water Resources Publications; 2009.Google Scholar
  3. GRIWAC (Gansu Research Institute for Water Conservancy, Dryland Agriculture Institute of Gansu Academy of Agriculture Sciences, Gansu Agriculture University and Dinxi County Government, Technology integration and innovation study on highly efficient concentration of natural rainfall in the semi-arid mountainous area, Lanzhou: GRIWAC, 2002 (unpublished report, in Chinese)Google Scholar
  4. Irrigation and Drainage Department of Ministry of Water Resources (IDMWR) and Rural Department of Ministry of Finance (RDMOF), ed. Concise textbook of rural rainwater harvesting project. Beijing: China Water Resources and Power Publications; 2001 (in Chinese).Google Scholar
  5. Jensen ME. Water consumption by agriculture plants. In: Kozlowski TT, editor. Water deficits and plant growth, vol. 2. New York: Academy Press; 1968. pp. 1–22.Google Scholar
  6. Liu Z. Study on the water saving irrigation for spring wheat. Xinjiang Auton. Reg. Water Res Sci Technol 1987;4–5 (in Chinese).Google Scholar
  7. Peng S, et al. Water-saving techniques for paddy irrigation. Beijing: China Water Resources and Hydro Power Publications; 1998 (in Chinese).Google Scholar
  8. Zhu Q, Liao L. Study on the optimum irrigation scheduling and economic irrigation quota. Gansu Water Res. Hydropower Tech 1994;58:21–7 (in Chinese).Google Scholar
  9. Zhu Q, Li Y, Gould J. Every last drop—rainwater harvesting and sustainable technologies in rural China. Rugby, Uk: Practical Action Publishing Ltd; 2012.Google Scholar

Copyright information

© Springer Science+Business Media Singapore and Science Press, Beijing 2015

Authors and Affiliations

  1. 1.Gansu Research Institute for Water ConservancyLanzhouChina

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