
 | | Design and operation of smallholder irrigation in South Asia
|
 |  | | Foreword |
 |  | | Abstract |
 |  | | Chapter 1 - Introduction |
 |  | | Chapter 2 - Profile of the smallholder |
 |  | | Fractionation and consolidation of the smallholding |
 |  | | Smallholder attitude toward farmer-owned and government systems |
 |  | | Cultivator willingness to undertake more intensive cultivation |
 |  | | Smallholder attitude toward credit |
 |  | | Theft and vandalism of control structures |
 |  | | Chapter 3 - Land shaping and water distribution at the field level |
 |  | | Land shaping by the cultivator vs. institutionally |
 |  | | Land shaping and water management in smallholder irrigation |
 |  | | Land shaping as a project component |
 |  | | Chapter 4 - Water supply and demand |
 |  | | Degree of storage regulation |
 |  | | Intensity of irrigation |
 |  | | Crop water requirements and crop water response |
 |  | | Effective rainfall |
 |  | | The particular case of water requirements for paddy |
 |  | | Chapter 5 - Cropping patterns in irrigation design |
 |  | | The degree of control of selection of crops |
 |  | | Cropping pattern design and project formulation |
 |  | | Chapter 6 - Irrigability |
 |  | | Soil surveys and land classification |
 |  | | Soil constituents |
 |  | | Soils problems on irrigation |
 |  | | Saline and alkaline soils |
 |  | | Expansive days |
 |  | | Gypsiferous soils |
 |  | | Acid sulphate soils (cat clays) |
 |  | | Podzols |
 |  | | Lateritic soils |
 |  | | Dune sands |
 |  | | Chapter 7 - Canal systems for smallholder irrigation |
 |  | | Introduction and definitions |
 |  | | Designing for variable supply |
 |  | | Varying demand within the service area |
 |  | | Allocation of water and establishing water charges |
 |  | | Capacity of primary and secondary canals and size of irrigation area |
 |  | | Distribution at the tertiary level |
 |  | | Background |
 |  | | Tertiary system design for non-paddy crops |
 |  | | Tertiary system design for areas primarily under paddy |
 |  | | Tertiary system design for mixed cropping |
 |  | | Layout of tertiary channels |
 |  | | Chapter 8 - Hydraulics of canal regulation and types of control structures |
 |  | | Background |
 |  | | Downstream control with limited demand |
 |  | | Upstream control with rotational delivery |
 |  | | Hydraulic controls on secondary and tertiary canals |
 |  | | Downstream control |
 |  | | Upstream control |
 |  | | Hydraulic controls on primary canals |
 |  | | Production of small hydraulic structures |
 |  | | Chapter 9 - Operation and maintenance |
 |  | | Introduction |
 |  | | Inadequate budget for O and M |
 |  | | Desilting of canals |
 |  | | Weed control in canals |
 |  | | Operation of partially completed systems |
 |  | | Night irrigation |
 |  | | Monitoring of project performance |
 |  | | Application of computers to irrigation system operation |
 |  | | Social and political pressures in system operation |
 |  | | Chapter 10 - Durability of canal linings |
 |  | | Reasons for lining |
 |  | | Causes of deterioration canal linings |
 |  | | Construction materials for primary and secondary canal linings |
 |  | | Construction materials and production methods of tertiary canal linings |
 |  | | Chapter 11 - Construction and maintenance problems of drainage works |
 |  | | Drainage and the cultivator |
 |  | | Formal and informal tertiary drainage systems |
 |  | | Subsurface field drainage |
 |  | | Primary and secondary drainage |
 |  | | Chapter 12 - Cultivator organizations |
 |  | | Cultivator organizations in irrigation system operation |
 |  | | Traditional organization in village-level irrigation schemes |
 |  | | Projection from the village-level organization to cultivator organizations in public systems |
 |  | | Experience and problems with water user groups in public irrigation systems |
 |  | | Chapter 13 - Village schemes and small tank projects |
 |  | | Background |
 |  | | Farmer-constructed diversion systems |
 |  | | Village schemes with storage |
 |  | | Chapter 14 - Groundwater development |
 |  | | Introduction |
 |  | | Small, individually-owned, suction-mode wells |
 |  | | Individually owned and group owned force-mode wells |
 |  | | Large capacity public tubewells |
 |  | | Technical problems in design and construction of medium and large tubewells |
 |  | | Water distribution from medium tubewells |
 |  | | Functions of the tubewell operator |
 |  | | Power supply problems |
 |  | | Comparison of medium and large wells |
 |  | | Chapter 15 - Conjunctive use of surface and groundwater |
 |  | | Definitions |
 |  | | Direct conjunctive use |
 |  | | Indirect conjunctive use |
 |  | | Chapter 16 - Pumped lift irrigation distribution |
 |  | | Background |
 |  | | The application of individually owned small pumping units |
 |  | | Centralized pumped-lift systems |
 |  | | Chapter 17 - Technical and operational improvements in rehabilitation of irrigation projects |
 |  | | Introduction |
 |  | | The dam and reservoir |
 |  | | The canal system |
 |  | | Drainage |
 |  | | Introduction of high technology irrigation methods |
 |  | | Chapter 18 - Ecological and riparian factors in irrigation development |
 |  | | Introduction |
 |  | | Ecological issues in groundwater development |
 |  | | Surface water development |
 |  | | Riparian issues |
 |  | | References |
 |  | | Distributors of world bank publications |