Performance Evaluation of Irrigation Projects - Practices of Irrigation and On-farm Water Management - page 119

(iv) Water delivery performance
(v) Irrigation system efficiency (or overall efficiency)
(vi) Equity of water delivery
(vii) Channel density
(viii) Water supply - requirement ratio
(ix) Water availability and shortage
(x) Energy use efficiency

4.2.3.2 Field Water Use Indicators

These indicators concern the efficiency of on-farm water application and the uni-
formity of water distribution along the irrigated field. Indicators under this category
are as follows:

• On-farm water loss

• Deep percolation fraction/deep percolation ratio

• Runoff fraction/tailwater ratio

• Water application efficiency

• Storage efficiency/water requirement efficiency

• Application efficiency of low quarter

• Distribution efficiency or uniformity

• Low-quarter distribution uniformity

4.2.3.3 Crop and Water Productivity and Acreage
Indicators under this category are as follows:

• Area irrigated

• Irrigation intensity

• Duty of discharge/supply water

• Crop productivity (Yield rate)

• Water productivity

• Irrigation water productivity

4.2.3.4 Socioeconomic Indicators

In some cases, cost-benefit or social uplift and social acceptance aspects are mea-
sured. These are called socioeconomic indicators. Indicators under this category
include the following:

• Irrigation benefit-cost ratio

• Cost per unit production

• Irrigation cost per unit area

• Farmers income ratio