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Determination of conveyance losses in irrigation canals / by Florentino C. Baniqued Jr.

By:

Baniqued, Florentino C [author]

Material type: Text

TextLanguage: English Publication details: Muñoz, Nueva Ecija : 1981. Cavite State University- Main Campus,Description: 57 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

631.4 B22 1981

Online resources:

Click here to view thesis abstract and table of contents

Abstract: Regression models expressing conveyance loss in irrigation earth canals (CL)as a function of its discharge (Q), Length (L) and wetted perimeter (WP) were developed. Conveyance loss measurements were taken from main canals, laterals and sub laterals in the Magat and Siffu River Irrigation Systems in the province of Isabela representing the two major soil groups, namely, soil group 1 (clay and clay- loam) and soil group 2 (sandy clay loam, sandy loam and loam) using the inflow-outflow method. Tre average rate of evaporation during the investigation was 3 mm/day and the depth of the water table ranged from 24 cm to 58 cm from the ground elevation. The measured conveyance class ranged from 10 to 420 1li/sec for soil group 1 and from 9 to 745 li/sec for soil group 2. The maximum discharge measured was 7.75 cms while the minimum was 0,190 cms, The maximum test length was 2.0 km and the minimum was 0.5 km. The range of measured wetted perimeter was from 2.05 to 14.35 m. The developed models expressing CL as (qa) function of each of the L, Q and WP (b) function of L and Q and (c) function of L, Q and WP accounted for 74 to 99 per. cent of the expected variation in conveyance loss in irrigation earth Canals.

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Holdings ( 1 )
Title notes ( 4 )

Holdings
Item type	Current library	Call number	Materials specified	URL	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	631.4 B22 1981 (Browse shelf(Opens below))		Link to resource	Room use only	T-1999		00002639

Thesis (M.S. - - Soil and Water Management) Central Luzon State University.

Includes bibliographical references.

Regression models expressing conveyance loss in irrigation earth canals (CL)as a function of its discharge (Q), Length (L) and wetted perimeter (WP) were developed. Conveyance loss measurements were taken from main canals, laterals and sub laterals in the Magat and Siffu River Irrigation Systems in the province of Isabela representing the two major soil groups, namely, soil group 1 (clay and clay- loam) and soil group 2 (sandy clay loam, sandy loam and loam) using the inflow-outflow method.

Tre average rate of evaporation during the investigation was 3 mm/day and the depth of the water table ranged from 24 cm to 58 cm from the ground elevation. The measured conveyance class ranged from 10 to 420 1li/sec for soil group 1 and from 9 to 745 li/sec for soil group 2. The maximum discharge measured was 7.75 cms while the minimum was 0,190 cms, The maximum test length was 2.0 km and the minimum was 0.5 km. The range of measured wetted perimeter was from 2.05 to 14.35 m.

The developed models expressing CL as (qa) function of each of the L, Q and WP (b) function of L and Q and (c) function of L, Q and WP accounted for 74 to 99 per. cent of the expected variation in conveyance loss in irrigation earth Canals.

Submitted to the University Library 11/15/1999 T-1999