Planning Irrigation Networking and OFD Works

Epilogue......Page 8
Preface......Page 10
List of Figures......Page 12
List of Tables......Page 14
Abbreviations......Page 16
Contents......Page 18
1.2 Sources of Irrigation Water......Page 22
1.5 Quality of Irrigation Water......Page 23
1.7 Sub Surface Irrigation......Page 24
1.10 Check Flooding......Page 25
1.14 Sprinkler Irrigation......Page 26
1.20 Semi-Arid Region......Page 27
1.21 Effective Rainfall......Page 28
1.22 Crop Water Requirement......Page 29
1.24 Cropping Calendar......Page 30
1.25 Delta of a Crop-Duty of Water
......Page 31
1.26 Water Allowance......Page 32
1.27 Water Shed......Page 36
1.29 Contour Canal......Page 37
1.32 Branch Canal......Page 38
1.36 Intensity of Irrigation......Page 39
1.37 Drainage......Page 40
1.38 Conjunctive Use of Ground Water......Page 44
1.39 Hydrological Barrier......Page 45
1.40 Water Harvesting......Page 47
1.41 Village Service Area (VSA) Irrigation Practice
......Page 48
2.1 Introduction......Page 50
2.2 Impact of Irrigation Projects......Page 51
2.3 Survey Maps......Page 52
2.4 Rectangulation Survey......Page 53
2.5 Implementation of Irrigation Projects......Page 54
2.6 IGNP Survey......Page 55
2.7 Survey Requirements......Page 58
3.1 Introduction......Page 62
3.2 Length of Canal Per Hectare of CCA......Page 63
3.3 W.S.S. in Canals......Page 66
3.4 Side Slope......Page 68
3.5 Lined Canals......Page 72
3.6 Economical Section......Page 73
3.7 Rugosity Co-efficient......Page 76
3.8 Manning Formula for Design of Lined Canals......Page 77
3.9 Mehboob Section......Page 78
3.11 Bank Width......Page 79
3.12 Curves......Page 80
3.14 Land Width for Afforestation......Page 81
3.15 Canal Outlets......Page 82
3.16 Pipe Outlets......Page 84
3.17 Crumps APM......Page 86
4.1 Introduction......Page 88
4.3 Differential Lifting: A Concept......Page 89
4.4 A Case Study......Page 90
5.2 Square (Murraba)......Page 96
5.4 Water-Courses......Page 97
5.5 Naka (Turnout)......Page 98
5.8 Culturable Command Area......Page 99
6.2 Area of Sub Chak......Page 100
6.3 Stream Size-Water Carrying Capacity......Page 101
6.4 Initial Chak Planning......Page 103
6.5 Planning Whole to Part-effect of Unco-ordinated Planning 
......Page 106
7.1 Introduction......Page 110
7.3 Grades in Water-courses......Page 111
7.4 Outlet Size......Page 112
7.5 Working Head......Page 114
7.6 Cutting and Filling in Water-course......Page 115
7.7 (a) Naka Point/Turn Out......Page 116
(b) Location of Naka Point/Turn Out......Page 117
7.8 Masonry Structures......Page 119
7.9 Economical Length of Lining in Water-course......Page 120
7.10 Culturable Command Area......Page 123
7.11 Integrated Planning......Page 130
7.12 Sprinkler-Drip Irrigation, Economic Use of Precious Water......Page 131
7.13 Unlined Water-course and F.B.......Page 132
7.14 Bank Width in Lined Section in Filling......Page 134
7.15 Design of Lined Water-courses......Page 135
7.16 Losses in Lined Water-courses......Page 138
8.1 Introduction......Page 144
8.3 Location of Service Tank......Page 145
8.4 C.C.A. Assessment......Page 146
8.7 Adoption of FSL at Naka Point/Turn Out......Page 147
9.1 Introduction......Page 148
9.2 Equitable Distribution of Water......Page 149
9.3 Roaster of Turns......Page 150
9.5 Rotational Running of Canals, Grouping of Canals
......Page 155