Chapter 1. Introduction
- 1.1. Irrigation: Definition, Functions, Advantages, and Disadvantages
- 1.2. Irrigation Planning
- 1.3. Need of Evaluation: Benchmarking and Water Auditing
- 1.4. Organization of This Book
Chapter 2. Irrigation Project Planning
- 2.1. Planning Stages
- 2.2. Investigation Phases and Data Collection
- 2.3. Scope of Work for Planning or Prefeasibility Report Stage
- 2.4. Scope of Work for Detailed Investigation or Detailed Project Report Stage
- 2.5. Factors Affecting the Development of Irrigation Facilities
Chapter 3. Basic Hydraulic Computations
- 3.1. Basic Terminology
- 3.2. Conservation Laws
- 3.3. Hydraulic Jump
- 3.4. Computation of Critical Depth
- 3.5. Uniform Flow Computation
- 3.6. Gradually Varied Flow
- 3.7. Concluding Remarks
Chapter 4. Hydrologic Computations
- 4.1. Analyses of Rainfall Data
- 4.2. Hydrologic Cycle
- 4.3. Hydrologic Equation and Water Balance
- 4.4. Estimation of Reservoir Inflow Using Observed Data
- 4.5. Estimate of Catchment Yield Using Rainfall–Runoff Modeling
- 4.6. Inflow Estimation in Multi-Reservoir Case
- 4.7. Design-Flood Estimation for Fixing the Spillway Capacity
- 4.8. Reservoir Sizing
- 4.9. Reservoir Sedimentation
- 4.10. Concluding Remarks
Chapter 5. Estimation of Lake Evaporation and Potential Evapotranspiration
- 5.1. Estimation of Lake Evaporation
- 5.2. Estimation of Reference Crop Evapotranspiration
- 5.3. Concluding Remarks
Chapter 6. Estimating Irrigation Design Parameters
- 6.1. Estimation of Crop Water Requirement
- 6.2. Irrigation Water Requirement
- 6.3. Irrigation Efficiency
- 6.4. Irrigation Command Area
- 6.5. Determination of Irrigated Command Area, Project Duty, Duty at Outlet Head and Canal Head, Water Allowance, and Canal Capacity
Chapter 7. Design of Irrigation Canals
- 7.1. Typical Canal Geometry
- 7.2. Design of Lined Canals
- 7.3. Design of Stable Unlined Canals Using the Regime Theory
- 7.4. Design of Unlined Canal Using Tractive Force Approach
- 7.5. Determining L-Section of the Canal
- 7.6. Development of Draw-Off Statement for the Canal
- 7.7. Concluding Remarks
Chapter 8. Design of Canal Outlets and Their Calibration
- 8.1. Classification of Outlets
- 8.2. Performance of Module or Outlet
- 8.3. Design of Outlets: Discharge Through Outlets
- 8.4. Calibration of Outlet
- 8.5. Concluding Remarks
Chapter 9. Canal Architecture
- 9.1. Canal Classification
- 9.2. Command Area Survey
- 9.3. Canal Alignment
- 9.4. Marking and Finalization of Area Proposed to Be Irrigated by Each Channel
- 9.5. Design of Canal
- 9.6. Concluding Remarks
Chapter 10. Irrigation Methods
- 10.1. Methods of Irrigation
- 10.2. Factors Affecting the Selection of Irrigation Method
- 10.3. Layout of Basin Irrigation
- 10.4. Layout for Furrow Irrigation
- 10.5. Layout of Border Irrigation
- 10.6. Concluding Remarks
Chapter 11. Optimal Cropping Pattern
- 11.1. Linear Programming
- 11.2. LP Formulation for Optimal Crop Planning
- 11.3. LP-Based Conjunctive Use of Surface and Groundwater Resources
- 11.4. Concluding Remarks
Chapter 12. Irrigation Scheduling
- 12.1. Simple Calculation of Irrigation Scheduling (FAO, 1989)
- 12.2. Water Balance Method
- 12.3. Warabandi Scheduling
- 12.4. Process of Warabandi
- 12.5. Concluding Remarks
Chapter 13. Benchmarking of Irrigation Projects
- 13.1. Benchmarking Domains
- 13.2. Benchmarking Process
- 13.3. Data Required for Benchmarking
- 13.4. Indicators of Benchmarking
- 13.5. Computational Methods for Indicators
- 13.6. Concluding Remarks
Chapter 14. Performance Evaluation of Irrigation Projects
- 14.1. System Delivery Performance
- 14.2. Productive Performance
- 14.3. Financial Performance
- 14.4. Concluding Remarks
Chapter 15. Water Auditing of Irrigation Projects
- 15.1. Definition of Water Auditing
- 15.2. Data Collection for Water Auditing
- 15.3. Indicators of Water Audit
- 15.4. Brief Description of Indicators
- 15.5. Estimation of Water Auditing Indicators
- 15.6. Concluding Remarks
Chapter 16. Flow Measurement in Canals
- 16.1. Flow Measuring Structures
- 16.2. Area–Velocity Method
- 16.3. Concluding Remarks
Chapter 17. Soil Analysis
- 17.1. Soil and Its Physical Properties
- 17.2. Soil-Water Constants
- 17.3. Protocol for Soil Moisture Analysis Using Gravimetric Method
- 17.4. Measurement of Soil Moisture at Field
- 17.5. Concluding Remarks
Chapter 18. Scheme Irrigation Efficiency
- 18.1. Scheme Irrigation Efficiency
- 18.2. Field Application Efficiency (Ea)
- 18.3. Conveyance Efficiency (Ec)
- 18.4. Concluding Remarks
Chapter 19. Environmental Aspects of Irrigation Projects
- 19.1. Environment and Ecosystem Processes
- 19.2. Biodiversity
- 19.3. Environmental Aspects of Water Resources Development
- 19.4. Environmental Impact of Development of Irrigation Projects
- 19.5. Environmental Impact Assessment and Management
- 19.6. Policy Background
- 19.7. Clearances Required for River Valley or Irrigation Projects in India
- 19.8. Concluding Remarks
Chapter 20. Financial Appraisal of Irrigation Projects
- 20.1. Benefits and Costs of the Project
- 20.2. Benefit–Cost Analysis
- 20.3. Appraisal of the Project
- 20.4. Concluding Remarks
Chapter 21. Way Forward to Improve Irrigation Efficiency
- 21.1. Feasible Solution to Improve System Technical Efficiency
- 21.2. Feasible Solution to Improve Productive Efficiency
- 21.3. Feasible Solution to Improve Financial Efficiency
- 21.4. Feasible Solution to Improve Distribution Efficiency
- 21.5. Concluding Remarks