A stream size of 150 lit/sec was released from the diversion headwork to irrigate a land of area 1-8 hectare. The stream size when measured at the delivery to the field channels is 120 lit/sec. The stream was continued for 8 hours. The effective root zone depth is 1.80 m. The application losses in the field are estimated to be 440 m³. The depth of water penetration was 1-80 m and 1-20 m at the head and tail of the run respectively. The available water holding capacity of the soil is 21 cm/m and irrigation was done at 60% depletion of available moisture (A). Find conveyance efficiency (EJ), water application efficiency (Ea), water storage efficiency (E) and water distribution efficiency (Ed). The stream size delivered to the plot was 100 lit/sec.

A stream size of 150 lit/sec was released from the diversion headwork to irrigate a land of area 1-8 hectare. The stream size when measured at the delivery to the field channels is 120 lit/sec. The stream was continued for 8 hours. The effective root zone depth is 1.80 m. The application losses in the field are estimated to be 440 m³. The depth of water penetration was 1-80 m and 1-20 m at the head and tail of the run respectively. The available water holding capacity of the soil is 21 cm/m and irrigation was done at 60% depletion of available moisture (A). Find conveyance efficiency (EJ), water application efficiency (Ea), water storage efficiency (E) and water distribution efficiency (Ed). The stream size delivered to the plot was 100 lit/sec.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter7: Seepage

Section: Chapter Questions

Problem 7.6P

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