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Wednesday, October 21, 2020 | History

1 edition of Economic assessment of on-farm water use efficiency in agriculture found in the catalog.

Economic assessment of on-farm water use efficiency in agriculture

Economic assessment of on-farm water use efficiency in agriculture

methodology and two case studies

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  • 10 Currently reading

Published by United Nations in New York .
Written in English

    Places:
  • Africa, North,
  • Africa, West
    • Subjects:
    • Irrigation efficiency -- Africa, North -- Econometric models.,
    • Irrigation efficiency -- Africa, West -- Econometric models.,
    • Irrigation efficiency -- Africa, North -- Case studies.,
    • Irrigation efficiency -- Africa, West -- Case studies.

    • Edition Notes

      StatementEconomic and Social Commission for Western Asia, International Center for Agricultural Research in the Dry Areas.
      GenreCase studies.
      ContributionsUnited Nations. Economic and Social Commission for Western Asia., International Center for Agricultural Research in the Dry Areas.
      Classifications
      LC ClassificationsS619.E34 E29 2000
      The Physical Object
      Paginationviii, 76 p. ;
      Number of Pages76
      ID Numbers
      Open LibraryOL3353020M
      LC Control Number2004377146
      OCLC/WorldCa45415669

      The report, building on a policy dialogue with a range of stakeholders in Korea, analyses how economic policy instruments under the responsibility of the Korean Ministry of Land, Infrastructure and Transport can be adjusted to contribute to water policy objectives. It also investigates how Smart Water Management Korea, an initiative by K-water that combines information and. • The net effect of climate change on world agriculture is likely to be negative. Although some regions and crops will benefit, most will not. • While increases in atmospheric CO 2 are projected to stimulate growth and improve water use efficiency in some crop .

      Water use efficiency (WUE) is defined as the ratio between the amount of water that is used for an intended purpose and the total amount of water supplied within a spatial domain of interest. Whole system efficiency (WSE) is the efficiency of water use for the entire defined system. Whole system productivity indicator (WSPI) is the water. Discusses conceptual issues related to efficiency and productivity in agricultural water use, arguing that a key distinction between the concepts and terms from the fields of engineering and agronomy that dominate the irrigation literature, and the concepts and terms from economics proves necessary.

      Figure 7 shows the CDF of national annual on‐farm economic losses due to all surface water restrictions by time period. For the baseline, there is a probability across the country of there being no aggregate economic losses due to the drought management restrictions, while the 90th percentile probability of nonexceedance of total annual. "When agricultural water is used effectively and safely, production and crop yield are positively affected. A decrease in applied water can cause production and yield to decrease the key is to implement management strategies that improve water use efficiency without decreasing yield.


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Economic assessment of on-farm water use efficiency in agriculture Download PDF EPUB FB2

Economic assessment of on-farm water use efficiency in agriculture. Methodology and two case studies Technical Report (PDF Available) January with 29 Reads. The term efficiency accounts for a dimensionless ratio of the total amount of water used to the total amount of water applied.

Thus, Israelsen () used irrigation efficiency to account for the fraction of water supplied by irrigation to a plant or a crop, normally expressed as a percentage, that is effectively taken by the plant or the crop.

At the crop level, a correct definition of water Cited by: It demonstrates how efficiency of water use can be enhanced to maximize yields. The book represents the first in a new series of volumes resulting from the Comprehensive Assessment of Water Management in Agriculture, a research program conducted by the CGIAR's Future Harvest Centres, the Food and Agriculture Organization of the United Nations 1/5(1).

water use efficiency or more importantly the water productivity. This chapter explains in detail the concept and measurement of ‘water-use efficiency’ and ‘water productivity’ as applied at plant, field, farm, region/sub-basin, basin and national level through. Water scarcity is worsened by climate change.

Water savings can be reached by improving irrigation efficiency both on farm and on water supply. To do that, the choice of the best irrigation technology is not always straightforward, because farmers need to renew and implement farm infrastructures for irrigation.

This study compares three irrigation systems, one drip irrigation and two sprinkler Cited by: 3. The book “Fundamentals of Irrigation and On-farm Water Management” (Volume 1) is a true textbook for the undergraduate students in Bio-Science Engineering, Agricultural Engineering, Water Resource Engineering, Civil & Environmental Engineering, Biological Systems Engineering, Environmental Science, Biological Sciences and Agricultural Sciences.

Agriculture is coming under more and more pressure to justify its use of the world's freshwater resources and to improve its productive and environmental performance. The allocations of raw water to agriculture (and the allocations within the agriculture sector) all need to be negotiated in a transparent way.

This report reviews the large set of literature on the subject and makes the case for. lowest-valued water use, efforts are increasingly undertaken to encourage agricultural water conservation with the aim of transferring some water to higher-valued uses and thus improving the economic efficiency of the allocation of scarce water resources.

Since water losses are typically large in irrigated agriculture, adopting improved on-farm. Agriculture is a major user of ground and surface water in the United States, accounting for approximately 80 percent of the Nation's consumptive water use and over 90 percent in many Western States.

Efficient irrigation systems and water management practices can help maintain farm profitability in an era of increasingly limited and more costly water supplies.

In a large number of developing countries, policy makers and researchers are increasingly aware of the conflicting demands on water, and look at agriculture to be more effective in its use of water.

Focusing on both irrigated and rain-fed agriculture, this book give a state of the art review of the limits and opportunities for improving water. Water is essential for every form of life, for all aspects of socio-economic development, and for the maintenance of healthy ecosystems.

While there are sufficient freshwater resources at the global level to enable continued agricultural and industrial development, the long-term sustainable use of water. Downloadable. Addressing water use efficiency in the Middle East is challenging due to the geopolitical complexity, climatic conditions and a variety of managerial issues.

Groundwater is the dominant water resource for Palestinians, while aquifers are shared with their neighbours. We assessed in this study the efficiency of the agricultural water use in Jericho, which we defined as the Water.

However, the impact on farm economics will likely be the strongest incentive to adopt cover crops. These impacts can include farm profits, cash crop yields or both.

This paper provides a review of cover-crop adoption, production, risk and policy considerations from an economic perspective. The specific objectives of this paper are to assess the economic and environmental impacts of different water-harvesting techniques in Jordan's Badia region.

Cost benefit analysis (CBA) was used. Performance assessment methods and variables could include life cycle assessment (LCA), greenhouse gas emissions, water-use efficiency, energy efficiency, soil quality, costs of production, profitability, farm resilience, biodiversity protection, pesticide and fertilizer use, labor efficiency, food miles, and dietary and health effects.

Tools for combined economic and sustainability assessment would help organize information to guide appropriate decisions about the new system for agricultural policies and extension.

Because of the advantage to account for all the input materials into a whole system, the method of energy analysis can identify the renewable and nonrenewable. Water market impacts of on-farm water use efficiency programs that require entitlement transfer Executive summary Context • Irrigators in the southern Murray-Darling Basin have seen many changes in the water market in recent years.

On the demand side, the cotton industry has expanded into southern New South Wales. Global crop production tripled during the last 50 years, mainly by an increase in yield (production/area).

We show that the energy embedded in the main oil-based inputs (machinery, fuel, and fertilizers) increased worldwide at a rate at first larger, but in the last decades slower, than crop production, resulting in a recent overall improved energy-use efficiency (EUE).

On-farm efficiency. On-farm, precision agriculture technologies can minimize inputs required for a given yield.

For example, variable-rate application (VRA) technologies can apply precise amounts of water, fertilizer, pesticide, herbicide, etc. A number of empirical studies find that VRA improves input use efficiency. Yoo S-H, Choi J-Y, Lee S-H, Oh Y-G, Yun DK () Climate change impacts on water storage requirements of an agricultural reservoir considering changes in land use and rice growing season in Korea.

Agric Water Manag –54 CrossRef Google Scholar. Eric Njuki, Boris E. Bravo-Ureta, Irrigation water use and technical efficiencies: Accounting for technological and environmental heterogeneity in U.S. agriculture using random parameters, Water Resources and Economics, /, ().

- Increasing On-Farm Water Use Efficiency and Productivity - Pricing and Conserving Residential Water - Financing and Managing Water Infrastructure - Ensuring Environmental Flows and Water Quality - Improving Transboundary and International Water Management. An additional session will explore the state of water economics and future directions.Section “Agricultural Production & Resource Use” Division 45 - Rural Development and Agriculture Deutsche Gesellschaft für Internationale Zusam-menarbeit (GIZ) GmbH Germany [email protected] Financed by Desai Fruits & Vegetables Pvt.

Ltd. Navsari, Gujarat, India German Federal Ministry for Economic Cooperation and Development (BMZ.