4.4 Article

THE IMPACT OF IRRIGATION TECHNOLOGY ON THE FINANCIAL AND ECONOMIC PERFORMANCE OF SMALLHOLDER IRRIGATION IN ZIMBABWE

Journal

IRRIGATION AND DRAINAGE
Volume 63, Issue 4, Pages 430-439

Publisher

WILEY-BLACKWELL
DOI: 10.1002/ird.1820

Keywords

smallholder; irrigation technology; economic performance; cost-benefit analysis; sensitivity analysis; Zimbabwe; petits proprietaires; technologies d'irrigation; performance economique; l'analyse couts-avantages; l'analyse de sensibilite; Zimbabwe

Funding

  1. African Economic Research Consortium (AERC) in Nairobi, Kenya

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The study assessed the impact of irrigation technology on the financial and economic performance of smallholder irrigation in Zimbabwe. The study was conducted in 2011 in the Hamamavhaire and Mhende irrigation schemes in Chirumanzu District (south-central Zimbabwe). A questionnaire survey was administered to 79 respondents drawn from farmers using sprinkler (n=32), flood (n=39) and drip (n=8) systems. Gross margin analysis, in conjunction with cost-benefit analysis, was used to evaluate the financial and economic performance of farmers. Farmers using the sprinkler system obtained the highest total gross margin per hectare (US$2762), followed by the flood system with returns that were 21% lower (US$2191), while the drip system recorded 50% lower returns (US$1387). Economic analysis indicated the superiority of the flood system (NPV=US$36 699; IRR=42% and BCR=4) compared to sprinkler irrigation (NPV=US$27 813; IRR=38%; BCR=2) and the drip system (NPV=US$25 393; IRR=23%; BCR=2). While the flood system was the most desirable from the financial and economic points of view, because of low operational costs, this could be offset by negative environmental impacts. The study concluded that the choice of one particular irrigation technology over another is a fine balance between efficiencies that can be achieved and the development and operational costs. Irrigation technology alone does not determine financial and economic viability. Copyright (c) 2014 John Wiley & Sons, Ltd. RESUME L'etude a evalue l'impact de la technologie de l'irrigation sur le rendement financier et economique de la petite irrigation au Zimbabwe. L'etude a ete menee en 2011 dans les perimetres irrigues du Hamamavhaire et de Mhende (district de Chirumanzu, centre-sud du Zimbabwe). Une enquete par questionnaire a ete conduite aupres de 79 agriculteurs utilisant l'irrigation soit par aspersion (n=32), soit par submersion (n=39), soit par goutte a goutte (n=8). La performance financiere et economique des agriculteurs a ete evaluee par l'etude de la marge brute, et par une analyse couts-benefices. Les agriculteurs qui utilisent le systeme d'arrosage par aspersion ont obtenu la plus forte marge brute totale par hectare (US$2762), suivis par le l'irrigation par submersion, avec des rendements inferieurs de 21% (US$2191), tandis que le systeme au goutte a goutte a donne des rendements inferieurs de 50% (US$1387). L'analyse economique a indique la superiorite du systeme par submersion (VAN=US$36 699; IRR=42% et BCR=4) par rapport a l'irrigation par aspersion (VAN=US$27 813; IRR=38%; BCR=2) et au systeme au goutte a goutte (VAN=US$25 393; IRR=23%; BCR=2). Le systeme par submersion etait le plus desirable du point de vue financier et economique, en raison des faibles couts d'exploitation, mais ne pouvait compenser ses impacts negatifs sur l'environnement. L'etude a conclu que le choix d'une technologie d'irrigation particuliere plutot qu'une autre est un equilibre delicat entre les economies qui peuvent etre realisees, le developpement et les couts operationnels. La technologie d'irrigation a elle seule ne permet pas de determiner la viabilite economique et financiere. Copyright (c) 2014 John Wiley & Sons, Ltd.

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