Increase in irrigation water use efficiency - Livelihoods Centre
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Increase in irrigation water use efficiency
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Description: | Amount of irrigation water required to produce a gram of dry matter (water supplied vs. water used by crop) Measure of the efficiency of irrigation schemes. Increase in efficiency indicates that water losses have been reduced (leakages), water is being managed efficiently: supplied at the right time for the crop, in the right quantities (fields not waterlogged). More water is available for downstream users or users at the downstream end of the irrigation scheme (often the poorer farmers). |
Disaggregated By: | Geography/Livelihoods zone; Wealth groups; Livelihoods group (e.g. pastoralist, farmers, traders); Period to achieve the objective; |
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Data source: | Both secondary and primary data collection can be used according to context. Baseline/Endline. If multiyear programme consider also a mid-term evaluation Secondary data. Reliable/relevant sources from other actors, clusters or government. Data Collection methods: Secondary data analysis; Farmers' harvest data, irrigation management committee water use records; Observation; |
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Source: | CWW-2 |
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Measure Notes: | > Liters per g dry matter > Liters per g harvested grain > Total crop dry matter harvested per amount of water supplied by the irrigation scheme. Needs accurate measurement of water supplied to each farmer in the irrigation scheme. Water is usually measured by farmers in terms of hours rather than liters. |