How to Assess Agricultural Water Productivity? Looking for Water in the Agricultural Productivity and Efficiency Literature

How to Assess Agricultural Water Productivity? Looking for Water in the Agricultural Productivity and Efficiency Literature

Given population and income growth, it is widely expected that the agricultural sector will have to expand the use of water for irrigation to meet rising food demand; at the same time, the competition for water resources is growing in many regions. As a response, it is increasingly recommended that efforts should focus on improving water productivity in agriculture, and significant public and private investments are being made with this goal in mind. Yet most public communications are vague on the meaning of agricultural water productivity, and on what should be done to improve it. They also tend to emphasize water as if it were the only input that mattered. This paper presents findings from a first attempt to survey the agricultural productivity and efficiency literature with regard to the explicit inclusion of water aspects in productivity and efficiency measurements, with the aim of contributing to the discussion on how to assess and possibly improve agricultural water productivity. The focus is on studies applying single-factor productivity measures, total factor productivity indices, frontier models, and deductive models that incorporate water. A key finding is that most studies either incorporate field- and basin-level aspects but focus only on a single input (water), or they apply a multi-factor approach but do not tackle the basin level. It seems that no study on agricultural water productivity has yet presented an approach that accounts for multiple inputs and basin-level issues. However, deductive methods do provide the flexibility to overcome many of the limitations of the other methods.

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Bibliographic Details
Main Authors: Scheierling, Susanne M., Treguer, David O., Booker, James F., Decker, Elisabeth
Format: Policy Research Working Paper biblioteca
Language:English
en_US
Published: World Bank Group, Washington, DC 2014-07
Subjects:ACCESS TO WATER, ACTUAL EVAPOTRANSPIRATION, AGRICULTURAL ACTIVITIES, AGRICULTURAL ECONOMY, AGRICULTURAL PRODUCTION, AGRICULTURAL WATER, AGRICULTURAL WATER USE, AGRICULTURE WATER, AQUIFER, AVAILABLE WATER, BASINS, CALIBRATION, CANALS, CATCHMENT, CLIMATE CHANGE, CLIMATIC CONDITIONS, COLLECTIVE ACTIONS, COMPETITION FOR WATER, CONJUNCTIVE USE, CONSUMPTIVE USE, COST OF WATER, COVERING, CROP PRODUCTION, CROP YIELDS, CUBIC METERS, DEMAND MANAGEMENT, DOWNSTREAM USERS, DRAINAGE, DRIP IRRIGATION, ENGINEERING, ENVIRONMENTAL QUALITY, EROSION, EVAPORATION, EVAPOTRANSPIRATION, EXPORT, FARM MANAGEMENT, FARMERS, FARMING, FLOW WATER, FOOD PRODUCTION, FOOD SECURITY, FRESHWATER, GLOBAL WATER CRISIS, GLOBAL WATER PARTNERSHIP, GRAVITY, GROUNDWATER, HYDROGEOLOGY, HYDROLOGIC CYCLE, HYDROLOGY, INTERNATIONAL WATER, IRRIGATION, IRRIGATION CANALS, IRRIGATION DEVELOPMENT, IRRIGATION DISTRICT, IRRIGATION SYSTEMS, IRRIGATION TECHNOLOGY, IRRIGATION WATER, MEASUREMENTS, MOISTURE CONTENT, NATURAL RESOURCES, OASES, ON-FARM WATER MANAGEMENT, OWNERSHIP OF WATER, PIPELINES, POLLUTION, POPULATION GROWTH, PRESSURE, PRICE OF WATER, PRODUCTION PROCESS, PROGRAMS, QUANTITIES OF WATER, QUANTITY OF WATER, RAIN, RAINFALL, REGIONAL WATER RESOURCES, REMOTE SENSING, RIVER FLOW, ROOT ZONE, RUNOFF, SALINITY, SEEPAGE, SOIL MANAGEMENT, SOIL MOISTURE, SURFACE RUNOFF, SURFACE WATER, SURFACE WATER QUALITY, SUSTAINABLE USE, TRANSPIRATION, USE OF WATER, WATER ALLOCATION, WATER ANALYSIS, WATER APPLICATION, WATER AVAILABILITY, WATER BUDGETS, WATER CONSUMPTION, WATER DEMAND, WATER DEMAND MANAGEMENT, WATER DEVELOPMENT, WATER LOSSES, WATER MANAGEMENT, WATER NEEDS, WATER PARTNERSHIP, WATER QUALITY, WATER QUANTITY, WATER RESOURCE, WATER RESOURCES, WATER RIGHTS, WATER SAVINGS, WATER SCARCITY, WATER SHORTAGES, WATER SOURCE, WATER STORAGE, WATER STRATEGY, WATER SUPPLIES, WATER SUPPLY, WATER TRANSFERS, WATER USE, WATER USERS, WATER USES, WATER WITHDRAWALS,
Online Access:http://documents.worldbank.org/curated/en/2014/07/19893942/assess-agricultural-water-productivity-looking-water-agricultural-productivity-efficiency-literature
http://hdl.handle.net/10986/19344
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Summary:Given population and income growth, it is widely expected that the agricultural sector will have to expand the use of water for irrigation to meet rising food demand; at the same time, the competition for water resources is growing in many regions. As a response, it is increasingly recommended that efforts should focus on improving water productivity in agriculture, and significant public and private investments are being made with this goal in mind. Yet most public communications are vague on the meaning of agricultural water productivity, and on what should be done to improve it. They also tend to emphasize water as if it were the only input that mattered. This paper presents findings from a first attempt to survey the agricultural productivity and efficiency literature with regard to the explicit inclusion of water aspects in productivity and efficiency measurements, with the aim of contributing to the discussion on how to assess and possibly improve agricultural water productivity. The focus is on studies applying single-factor productivity measures, total factor productivity indices, frontier models, and deductive models that incorporate water. A key finding is that most studies either incorporate field- and basin-level aspects but focus only on a single input (water), or they apply a multi-factor approach but do not tackle the basin level. It seems that no study on agricultural water productivity has yet presented an approach that accounts for multiple inputs and basin-level issues. However, deductive methods do provide the flexibility to overcome many of the limitations of the other methods.

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