1. Introduction
1.1 Introduction
1.2 Water resources
1.3 Need for rainwater management
1.4 Managing Competing Demands
1.5 Basic Principles of Rainwater Management
1.6 National Water Policy
1.7 Guidelines for Management and Assessment
1.8 Assessment and Management of Environmental Impacts
1.9 National Commission for Integrated Water Source
Development Plan
Exercises
References

2. Precipitation
2.1 Introduction
2.2 Hydrological Cycle
2.3 Different Forms of Precipitation
2.4 Types of Precipitation
2.5 Monsoons
2.6 Measurement of Point Precipitation
2.7 Analysis of Precipitation
2.8 Precipitation Gauge Network
2.9 Precipitation Analysis and its Presentation
Exercises
References

3. Rainfall and Water Balance Analysis
3.1 Introduction
3.2 Different Types of Statistical Distributions
3.3 Return Period or Recurrence Interval
3.4 Testing the Goodness of the Fit of the Statistical Distribution
3.5 A Case Study
3.6 Markov Chain Model
3.7 Types of Markov Chains
3.8 Utility
3.9 To Fit the Markov Model and to Test the Goodness of Fit
3.10 Water Balance Analysis
Exercises
References

4. Drought Indices
4.1 Introduction
4.2 Definitions of Drought
4.3 Classification of Droughts
4.4 Difference between Aridity and Drought
4.5 Climate Change and Drought
4.6 Reasons of Drought
4.7 Drought Indices
4.8 Drought Indices in India
4.9 Suitability of Drought Indices for Different Regions
4.10 Drought Monitoring Indices
4.11 Declaration of Drought by State Government
4.12 Prediction of Drought
4.13 Drought Management Strategies
Exercises
References

5. Climate, Weather Forecasting and Agro-advisory Services
5.1 Introduction
5.2 Classification of Atmosphere
5.3 Meteorological Elements and Hours of Observation
5.4 Classification of Surface Observatories
5.5 Weather Abnormalities
5.6 Weather Forecasting
5.7 Indigenous Techniques of Weather Forecasting
5.8 Weather Forecasting Organisations
5.9 Weather Elements and Time Factor
5.10 Modern Weather Prediction
5.11 Preparation of a Weather Outlook for the Farmers
5.12 Agroadvisory Services
5.13 Operational Forecasts
5.14 Methods of Weather Forecasting
5.15 Weather Modification
Exercises
References

6. In-situ Rainwater Management
6.1 Introduction
6.2 Factors affecting rainwater management
6.3 Some Definitions
6.4 Raindrop Characteristics
6.5 Basic Principles for In-situ Rainwater Management
6.6 Building In-situ Soil Moisture
6.7 Agronomic measures
Exercises
References

7. Ex-situ Rainwater Management
7.1 Introduction
7.2 Need of Water Harvesting
7.3 State Sponsored People’s Cooperatives
7.4 Principle of Ex-situ Rainwater Management
7.5 Water Harvesting
7.6 Increasing Productivity of Stored Water - A Case Study
7.7 Water Harvesting and Recycling
7.8 Design of Water Harvesting System
Exercises
References

8. Water Harvesting-cum-Artificial Groundwater Recharge
8.1 Introduction
8.2 Traditional Rainwater Harvesting Systems
8.3 Classification of Water Harvesting Techniques
8.4 Water Harvesting Techniques in Arid and Semi-arid Areas
8.5 Traditional Water Harvesting Systems
8.6 Artificial Recharge Techniques
8.7 Increased Runoff
8.8 Conservation Strategies
Exercises
References

9. Design of Water Harvesting Structures
9.1 Introduction
9.2 Rainwater Harvesting Structures
9.3 Estimation of Groundwater Recharge
Exercises
References

10. Water Losses and Control
10.1 Introduction
10.2 Different Forms of Water Losses
10.3 Interception Loss
10.4 Evaporation
10.5 Transpiration
10.6 Evapotranspiration
10.7 Depression Storage
10.8 Watershed Leakage
10.9 Infiltration
Exercises
References

11. Efficient Crop Planning
11.1 Introduction
11.2 Crop Planning
11.3 Drought Management Strategies
11.4 Crop Planning under Aberrant Weather Situations
11.5 Crop Planning Based on Onset of Monsoon
Exercises
References

12. Water Lifting Devices
12.1 Introduction
12.2 Human Power Operated
12.3 Animal Power Operated
12.4 Mechanical Power Operated
12.5 The Hydraulic Ram
Exercises
References

13. Measurement of Irrigation Water & Conveyance
Structures
13.1 Introduction
13.2 Units of Measurement
13.3 Techniques of Water Measurement
13.4 Farm Irrigation Distribution System
13.5 Erosion Controlling Structures in Channel
13.6 Water Control and Diversion Structures
13.7 Channel Crossing Structures
13.8 Underground Pipeline System
Exercises
References

14. Soil Plant Water
14.1 Introduction
14.2 Soils
14.3 Root Zone Soil-water
14.4 Soil Water Retention
14.5 Dynamics of Field-water
14.6 Plant-water Relationships
14.7 Water Movement in Soil-Plant-Atmosphere System
Exercises
References

15. Water Requirement Estimation for Crops
15.1 Introduction
15.2 Important Definitions
15.3 Direct Measurement of Evapotranspiration
15.4 Estimating Evapotranspiration from Evaporation Data
15.5 Estimating Evaportanspiration from Climatological Data
Exercises
References

16. Irrigation Scheduling
16.1 Introduction
16.2 Water Needs of Crop
16.3 Determination of Critical Periods of Water Need
16.4 Criteria for Irrigation Scheduling
16.5 Combination Approach
16.6 Frequency and Interval of Irrigation
Exercises
References

17. Planning Operation of Water Recycling System
17.1 Introduction
17.2 Need for Planning of Operation
17.3 Causes of Poor Operation of Water Recycling System
17.4 Important Terminology Pertaining to Community or Large Water Harvesting System
17.5 Dynamics of Water Harvesting Structures
17.6 Main Objectives of Operation and Criteria of Good Performance
17.7 Planning Operation of Recycling System
17.8 Measures to Match Supply and Demand
17.9 Water Delivery System
17.10 Monitoring the Operation
17.11 Maintenance
17.12 Assessment of Water Charges
17.13 Canal Outlets
17.14 Scheduling of Delivery
17.15 Farmer's Participation
Exercises
References

18. Water Recycling
18.1 Introduction
18.2 Effects of Life Saving Irrigation
18.3 Methods of Irrigation
18.4. Miroirrigation
18.5 Some Emerging Concepts and Innovations
18.6 Qualities of Irrigation Water
18.7 Multiple uses of harvested rainwater
Exercises
References

19. Recycling of Industrial Effluents
19.1 Introduction
19.2 Historic Perspective
19.3 Need for reuse of Industrial Effluents
19.4 Environmental Impacts of Industrial Uses of Water
19.5 Characteristics of Different Industrial Effluents
19.6 Effluent Utilization
19.7 Remediation techniques
19.7 Planning for Reuse of Wastewater
19.8 Measures for Conservation in Industries
19.9 Strategies for Conservation
19.10 Strategies for Recycling Industrial Effluents in
Agriculture
Exercises
References

20. Water Recycling in Salty Lands
20.1 Introduction
20.2 Salt Affected Soils
20.3 Classification of Salt Affected Soils
20.4 Quality of Irrigation Waters
20.5 Reclamation of Salt Affected Soils
Exercises
References

21. Drainage of Agricultural Lands
21.1 Introduction
21.2 Reasons of Waterlogging
21.3 Drainage System
21.4 Subsurface Drainage System
Exercises
References

22. Watershed Management
22.1 Introduction
22.2 Causes of Watershed Deterioration
22.3 Concepts of Watershed
22.4 Watershed Characteristics
22.5 Objectives of Watershed Management
22.6 Principles of Watershed Management
22.7 Monitoring and Evaluation
22.8 Indicators for Evaluation
22.9 A Case Study
Exercises
References

Appendices

Subject Index