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Irrigation improvement projects in Tanzania; scale impacts and policy implications

机译：坦桑尼亚的灌溉改善项目；规模影响和政策影响

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摘要

Observations in Tanzania indicate that the improvement of traditional smallholder irrigation does not necessarily result in improved water performance, greater equity and reduced conflict. The usual outcomes of such projects is a gain in water for the system being upgraded, especially if located upstream, accompanied by less ability to share water at the river basin scale. This paper concludes that these projects do not commonly understand, match and respond to the complexities of well-developed and evolving smallholder irrigation found in multi-user river basins. Without re-appraisal, the risk is that donors will be unsuccessful with smallholder irrigation and turn away from this sector, as they did with large-scale irrigation.
机译：坦桑尼亚的观察表明，传统的小农灌溉方式的改善并不一定会改善水的表现，增加公平性并减少冲突。此类项目的通常成果是为正在升级的系统（特别是位于上游的系统）增加水量，同时在流域范围内共享水的能力也有所降低。本文的结论是，这些项目通常无法理解，匹配并响应多用户流域中发达且不断发展的小农灌溉的复杂性。如果不进行重新评估，则风险是捐助者无法像小规模灌溉那样在小农灌溉方面失败，并且会放弃该部门。

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