Irrigation improvement projects in Tanzania; scale impacts and policy implications
Irrigation improvement projects in Tanzania; scale impacts and policy implications
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坦桑尼亚的灌溉改善项目；
DOI：
10.2166/wp.2004.0006
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发表时间：
2004
期刊：
影响因子：
1.6
通讯作者：
B. Lankford
中科院分区：
文献类型：
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作者：
B. Lankford
在坦桑尼亚的观察表明，改善传统的小农灌溉并不一定会改善用水情况、增加公平和减少冲突。此类项目的通常结果是系统升级所需的水量增加，特别是如果位于上游，那么在流域范围内共享水资源的能力就会降低。本文的结论是，这些项目通常不能理解、匹配和响应多用户流域中发达和不断发展的小农灌溉的复杂性。如果不进行重新评估，就有可能出现这样的风险：捐助者在小农灌溉方面将不成功，并像他们在大规模灌溉方面所做的那样，离开这个部门。
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.