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More Crop Per Drop

More Crop Per Drop

Meredith Giordano | Frank R. Rijsberman | R. Maria Saleth

(2007)

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Book Details

Abstract

This volume is an analytical summary and a critical synthesis of research at the International Water Management Institute over the past decade under its evolving research paradigm known popularly as 'more crop per drop'. The research synthesized here covers the full range of issues falling in the larger canvas of water-food-health-environment interface. Besides its immediate role in sharing knowledge with the research, donor, and policy communities, this volume also has a larger purpose of promoting a new way of looking at the water issues within the broader development context of food, livelihood, health and environmental challenges.   
More crop per drop: Revisiting a research paradigm contrasts the acquired wisdom and fresh thinking on some of the most challenging water issues of our times. It describes new tools, approaches, and methodologies and also illustrates them with practical application both from a global perspective and within the local and regional contexts of Asia and Africa. Since this volume brings together all major research works of IWMI, including an almost exhaustive list of citations, in one single set of pages, it is very valuable not only as a reference material for researchers and students but also as a policy tool for decision-makers and development agencies.   

Table of Contents

Section Title Page Action Price
Contents 6
1.0 IWMI Research: Context and Setting 16
1.1 INTRODUCTION 16
1.2 CHARACTERISTICS OF THE WATER CHALLENGE 17
1.3 WATER-FOOD-ENVIRONMENT NEXUS 18
1.4 IWMI’S RESEARCH RESPONSE 19
1.5 CONTEXT AND ORGANIZATION OF THIS VOLUME 20
2.0 \"More Crop per Drop\": Realigning a Research Paradigm 23
2.1 INTRODUCTION 23
2.2 EVOLUTION OF IWMI’S RESEARCH PARADIGM 24
2.3 INFLUENCE OF ‘MORE CROP PER DROP’ IDEAS 27
2.4 ‘MORE CROP PER DROP’: A CRITICAL LOOK 30
2.4.1 Limitations of the paradigm 31
2.4.2 Addressing the limitations 32
2.5 THE WAY FORWARD 33
3.0 Integrated Water Resources Management 37
3.1 INTRODUCTION 37
3.2 FROM IRRIGATION SYSTEM TO RIVER BASIN 38
3.3 WATER PRODUCTIVITY: INDICATORS AND USE 41
3.3.1 Water productivity indicators 41
3.3.2 Water productivity: Case studies 43
3.3.3 Water-saving technologies 45
3.4 WATER RESOURCES ASSESSMENT 47
3.4.1 Water-scarcity mapping 47
3.4.2 Water accounting 48
3.4.3 Hydronomic zones 51
3.4.4 Trajectories of basin development 52
3.5 MODELING WATER MANAGEMENT 52
3.5.1 MODELING WATER ALLOCATION 54
3.5.2 Modeling crop water productivity 54
3.5.3 Modeling with remote sensing data 56
3.6 IRRIGATION SYSTEM MANAGEMENT 64
3.6.1 System O&M 64
3.6.2 Rehabilitation and modernization 66
3.6.3 Performance of irrigated agriculture 67
3.7 CONCLUSIONS 68
4.0 Smallholder Land and Water Management 71
4.1 INTRODUCTION 71
4.2 RELEVANCE AND JUSTIFICATION 72
4.3 RESEARCH CONTEXT AND BACKGROUND 74
4.4 SMALLHOLDER RESEARCH: EVOLUTION AT IWMI 75
4.4.1 IBSRAM’s experience with smallholder research 76
4.4.2 Lessons from the network approach 77
4.5 RESEARCH ACHIEVEMENTS 78
4.5.1 Productivity of smallholders 79
4.5.1.1 Improving water productivity of smallholder farmers 79
4.5.1.2 Improving water access for smallholder farmers 81
4.5.1.3 Multiple water use: Efficiency and equity roles 82
4.5.1.4 Effects of the socioeconomic and biophysical environments 83
4.5.2 Catchment management 84
4.5.2.1 Erosion research: Evolving from technology to extension 86
4.5.2.2 Erosion processes, farming systems and land use 88
4.5.2.3 Off-site impacts of erosion 90
4.5.3 Rehabilitation of degraded lands 91
4.5.3.1 Learning from ‘bright spots’ 91
4.5.3.2 On-farm rehabilitation of degraded soils 95
4.5.3.3 Regional and global degradation processes 95
4.6. CONCLUSIONS 97
5.0 Sustainable Groundwater Management 99
5.1 INTRODUCTION 99
5.2 GROUNDWATER SOCIO-ECOLOGY OF SOUTH ASIA 101
5.2.1 Getting the big picture right 101
5.2.2 South Asia: Public investments vs.private initiative 102
5.2.3 Rise and fall of groundwater socio-ecologies 107
5.2.4 Implications for IWMI research in Asia and Africa 108
5.3 TECHNOLOGIES AND INSTITUTIONS 111
5.3.1 Groundwater for poverty reduction 111
5.3.2 Managing groundwater demand and supply 112
5.3.2.1 Pricing 112
5.3.2.2 Energy pricing as a surrogate 114
5.3.2.3 Promotion of micro-irrigation technologies 115
5.3.2.4 Conjunctive use of surface water and groundwater 116
5.3.2.5 Decentralized recharge as a mass movement 116
5.3.3 Coping with poor-quality water 119
5.3.3.1 Groundwater quality and public health 119
5.3.3.2 Conjunctive use in saline areas 120
5.3.4 Cross-cutting issues 123
5.4 GOVERNANCE FOR SUSTAINABILITY 125
5.4.1 Comparative institutional analyses 127
5.4.2 Strategic management versus direct regulation 129
5.4.3 Energy-irrigation nexus 130
5.5 CONCLUSIONS 131
6.0 Water Resources Institutions and Policy 133
6.1 INTRODUCTION 133
6.2 IRRIGATION MANAGEMENT TRANSFER: REQUISITES AND IMPACTS 135
6.2.1 IMT: Preconditions and viability 135
6.2.2 IMT: Impacts and assessments 136
6.3 INSTITUTIONAL REFORMS IN WATER SECTOR 137
6.3.1 Methodologies for evaluating institutional reforms 138
6.3.2 Cross-country analysis of institutional reforms 139
6.4 INSTITUTIONS FOR RIVER-BASIN MANAGEMENT 142
6.4.1 Hydro-institutional mapping 142
6.4.2 Cross-basin comparative analysis 144
6.4.3 Key results from basin institutional analysis 145
6.5 WATER AND POVERTY 147
6.5.1 Irrigation and poverty 147
6.5.2 Water deprivation and water entitlements 149
6.6 ECONOMIC ISSUES 150
6.6.1 Water pricing 150
6.6.2 The economics of water productivity 152
6.6.3 Investments in irrigation development 153
6.7 MAINSTREAMING GENDER ISSUES 156
6.8 CONCLUSIONS AND IMPLICATIONS 158
7.0 Water, Health and Environment 160
7.1 INTRODUCTION 160
7.2 RESEARCH EVOLUTION AND APPROACH 161
7.2.1 Defining the research context and agenda 163
7.2.2 Approach and methodology 164
7.3 MALARIA AND IRRIGATED AGRICULTURE 165
7.3.1 How is malaria linked to irrigated agriculture? 166
7.3.2 What are the direct and indirect costs of the disease? 168
7.3.3 What solutions can the agriculture sector offer? 169
7.4 IRRIGATED AGRICULTURE WITH WASTEWATER 172
7.4.1 How widespread is the practice? 173
7.4.2 What are the costs and benefits? 174
7.4.3 What are the legal and institutional scenarios? 175
7.4.4 What are the threats of heavy metal pollutants? 177
7.5 MULTIPLE USES OF WATER 178
7.5.1 What are the multiple uses and available sources? 179
7.5.2 What are the health impacts of water quality/quantity? 181
7.5.3 How does irrigation affect domestic supply? 183
7.6 HEALTH HAZARDS OF FARM PESTICIDES 183
7.6.1 What is the extent of acute pesticide poisoning? 184
7.6.2 What role does knowledge play in pesticide poisoning? 185
7.6.3 What are the risks of pesticide exposure? 186
7.6.4 How can agricultural management reduce the risks? 186
7.7 ECOLOGICAL ASPECTS OF AGRICULTURE 187
7.7.1 What are the ecological impacts of irrigated agriculture? 188
7.7.2 How can wetlands be used sustainably? 189
7.7.3 How can ecological water needs be determined and met? 190
7.8 CONCLUSIONS 191
8.0 Water Management for Agriculture 193
8.1 INTRODUCTION 193
8.2 EVOLVING SCOPE AND CONTEXT 194
8.3 CA FRAMEWORK 196
8.4 DETERMINING AGRICULTURAL WATER NEEDS 197
8.5 WATER PRODUCTIVITY: OPTIONS AND EFFECTS 200
8.5.1 Policy options and research needs 201
8.5.2 Examples of innovative practices 202
8.6 IRRIGATED AGRICULTURE: COSTS AND BENEFITS 203
8.6.1 Impacts on economics development 204
8.6.2 Impact on ecosystems 205
8.7 FOOD SECURITY: THE ROLE OF VIRTUAL WATER 207
8.8 CONCLUSIONS 209
9.0 A Decade of Water Research at IWMI: Insights and Impacts 211
9.1 INTRODUCTION 211
9.2 FRAMING THE WATER QUESTION 212
9.3 REFINING THE RESEARCH PARADIGM 214
9.4 THEMATIC RESEARCH: OVERVIEW AND INSIGHTS 215
9.4.1 Integrated water resources management 216
9.4.2 Smallholder land and water management 217
9.4.3 Sustainable groundwater management 219
9.4.4 Water resources institutions and policies 221
9.4.5 Water, health and environment 223
9.4.6 Water management for agriculture 225
9.5 KNOWDELGE BROKERING AND CAPACITY BUILDING 227
9.5.1 Knowledge brokering 227
9.5.2 Capacity building 230
9.6 RESEARCH REACH AND IMPACT ASSESSMENT 231
9.6.1 Research reach 231
9.6.2 Research application 232
9.6.3 Impact assessment 235
9.7 LOOKING FORWARD 238
North Partners and Collaborators 275
South Partners and Collaborators 275