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Actual Crop Water Use In Project Countries
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Book Synopsis Actual Crop Water Use in Project Countries by : Robina Wahaj
Download or read book Actual Crop Water Use in Project Countries written by Robina Wahaj and published by World Bank Publications. This book was released on 2007 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report aims to synthesize the results of a crop water use study conducted by country teams of the GEF/World Bank project, Regional Climate, Water, and Agriculture: Impacts on and Adaptation of Agro-ecological Systems in Africa. It also presents the results of the second phase of the study based on climate change scenarios, conducted by the South Africa country team. The actual evapotranspiration of five commonly grown crops-maize, millet, sorghum, groundnuts, and beans-in two selected districts were analyzed by six country teams. In addition, two country teams also analyzed other crops grown in the districts. The regional analysis shows that the actual yield of the different crops-specifically of maize and groundnuts-improves with an increase in actual evapotranspiration, although the gap remains wide between actual and potential yield and actual and maximum evapotranspiration, especially for the rainfed crops. This highlights the importance of improved water management if agriculture is to play an important role as a source of food security and better livelihoods. The report highlights the vulnerability of maize to water stress and the increased risks to the viability of rainfed farming systems based on this crop. The results of the second phase of analysis show that a 2°C increase in the temperature and a doubling of carbon dioxide concentration in the atmosphere will shorten the growing period of maize, which will result in decreased crop water requirement and use. The authors recommend extending this type of analysis to other crops as well as to other countries to develop a clearer picture of the changing pattern in crop water use of the major crops grown in the project countries.
Book Synopsis Actual Crop Water Use in Project Countries by : Robina Wahaj
Download or read book Actual Crop Water Use in Project Countries written by Robina Wahaj and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report aims to synthesize the results of a crop water use study conducted by country teams of the GEF/World Bank project, Regional Climate, Water, and Agriculture: Impacts on and Adaptation of Agro-ecological Systems in Africa. It also presents the results of the second phase of the study based on climate change scenarios, conducted by the South Africa country team. The actual evapotranspiration of five commonly grown crops-maize, millet, sorghum, groundnuts, and beans-in two selected districts were analyzed by six country teams. In addition, two country teams also analyzed other crops grown in the districts. The regional analysis shows that the actual yield of the different crops-specifically of maize and groundnuts-improves with an increase in actual evapotranspiration, although the gap remains wide between actual and potential yield and actual and maximum evapotranspiration, especially for the rainfed crops. This highlights the importance of improved water management if agriculture is to play an important role as a source of food security and better livelihoods. The report highlights the vulnerability of maize to water stress and the increased risks to the viability of rainfed farming systems based on this crop. The results of the second phase of analysis show that a 2??C increase in the temperature and a doubling of carbon dioxide concentration in the atmosphere will shorten the growing period of maize, which will result in decreased crop water requirement and use. The authors recommend extending this type of analysis to other crops as well as to other countries to develop a clearer picture of the changing pattern in crop water use of the major crops grown in the project countries.
Book Synopsis Actual Crop Water Use in Project Countries by : Robina Wahaj
Download or read book Actual Crop Water Use in Project Countries written by Robina Wahaj and published by . This book was released on 2016 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report aims to synthesize the results of a crop water use study conducted by country teams of the GEF/World Bank project, Regional Climate, Water, and Agriculture: Impacts on and Adaptation of Agro-ecological Systems in Africa. It also presents the results of the second phase of the study based on climate change scenarios, conducted by the South Africa country team. The actual evapotranspiration of five commonly grown crops-maize, millet, sorghum, groundnuts, and beans - in two selected districts were analyzed by six country teams. In addition, two country teams also analyzed other crops grown in the districts. The regional analysis shows that the actual yield of the different crops - specifically of maize and groundnuts - improves with an increase in actual evapotranspiration, although the gap remains wide between actual and potential yield and actual and maximum evapotranspiration, especially for the rainfed crops. This highlights the importance of improved water management if agriculture is to play an important role as a source of food security and better livelihoods. The report highlights the vulnerability of maize to water stress and the increased risks to the viability of rainfed farming systems based on this crop. The results of the second phase of analysis show that a 2deg;C increase in the temperature and a doubling of carbon dioxide concentration in the atmosphere will shorten the growing period of maize, which will result in decreased crop water requirement and use. The authors recommend extending this type of analysis to other crops as well as to other countries to develop a clearer picture of the changing pattern in crop water use of the major crops grown in the project countries.
Book Synopsis The Impacts of Climate Change on Regional Water Resources and Agriculture in Africa by : Kenneth M. Strzepek
Download or read book The Impacts of Climate Change on Regional Water Resources and Agriculture in Africa written by Kenneth M. Strzepek and published by World Bank Publications. This book was released on 2007 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper summarizes the methods and findings of the hydrological assessment component of the project studying likely impacts of climate change on water resources and agriculture in Africa. The first phase of the study used a version of a conceptual rainfall-runoff model called WatBal (Water Balance) applied to gridded data to simulate changes in soil moisture and runoff across the whole continent of Africa rather than to any particular catchment or water resource system. The model inputs were the climate variables of the 1961-90 climatology and physiological parameters (such as soil properties and land use) derived from global datasets for each of the 0.5 degree latitude/longitude cells across the continent. The primary model output comprised a time series (monthly time step) of simulated runoff for all the grid cells for each of the districts in the countries of interest. The second phase of the study extended the hydrology analyses to update the above hydroclimatic series to the year 2000 using updated input data. To ascertain the possible impacts of climate change within the districts being investigated this study used synthetic or GCM-based climate change scenarios as input to the WatBal model. The WatBal model was used to determine the impact of these different scenarios on runoff and actual evaporation and hence flow in the districts under study. The generated hydroclimatic series and scenario analyses were used as inputs into various Ricardian regressions in other analyses measuring likely impacts of climate change on the agricultural economies of Africa.
Book Synopsis When Do Creditor Rights Work? by : Siddharth Sharma
Download or read book When Do Creditor Rights Work? written by Siddharth Sharma and published by World Bank Publications. This book was released on 2007 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Helmy M. Eid, Samia M. El-Marsafawy, Samiba A. Ouda by :
Download or read book Helmy M. Eid, Samia M. El-Marsafawy, Samiba A. Ouda written by and published by World Bank Publications. This book was released on with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crop Water Requirement by : Rashmi Mehta
Download or read book Crop Water Requirement written by Rashmi Mehta and published by Ideal Thoughts. This book was released on 2018 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monitoring Agricultural Water Use at Country Level by : Karen Frenken
Download or read book Monitoring Agricultural Water Use at Country Level written by Karen Frenken and published by . This book was released on 2011 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: "As water becomes scarcer in many countries, governments increasingly have to deal with the considerable challenges of water management. Sound information on water availability and use is key to shaping water policies that aim to provide equitable and sustainable use of increasingly scarce water resources. Accurate information on agricultural water withdrawal is particularly important to planners and decision-makers involved in water management, as agriculture represents the largest water user in many countries, representing about 70 percent of total withdrawal worldwide. This report summarizes the results and lessons of the project "Strengthening national water monitoring capacities, with emphasis on agricultural water management". The project was implemented in two African countries, Benin and Ethiopia, and worked for two years with specialists in key stakeholder institutions to establish an information system on agricultural water management based on AQUASTAT, FAO's information system on water and agriculture, It is hoped that the report will serve as a useful guide and provide detailed resources for governments, research institutions, donor agencies and other stakeholders working on the important task of improving their country's information base for the management of agricultural water resources to create an equitable, efficient, and sustainable use of ever scarcer water resources" -- Cover description.
Book Synopsis Guidelines for Predicting Crop Water Requirements by : J. Doorenbos
Download or read book Guidelines for Predicting Crop Water Requirements written by J. Doorenbos and published by . This book was released on 1975 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculation of crop evapotranspiration; Selection of crop coeficient; Calculation of field irrigation requirements.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9251323623 Total Pages :93 pages Book Rating :4.2/5 (513 download)
Book Synopsis Field guide to improve crop water productivity in small-scale agriculture by : Food and Agriculture Organization of the United Nations
Download or read book Field guide to improve crop water productivity in small-scale agriculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2020-04-01 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: By 2050, the world’s population will reach 9.1 billion, which requires an increase of food production by 70 percent compared to 2005 (FAO,2018). Nearly all the increase will occur in developing countries, where agriculture plays a major role to provide employment, income and to improve food security. One of the major challenges of increasing food supply is the limited water resources. Agriculture, as the driver of freshwater exploitation has, therefore, to be transformed into more resource efficient production (FAO, 2003). The world’s limited freshwater resources are potentially threatened by the expansion of agriculture. Increasing the potential output per amount of water used is an appropriate practice to improve production efficiency while protecting water resources. Therefore, increasing the productivity of agricultural water use in a sustainable manner is essential to ultimately sustain the social and economic conditions of livelihoods. Crop water productivity has grown into one of the major approaches to cope with water scarcity and advance crop-water relation. The number of conceptual frameworks and implications is ample, but there is always a growing need to review the step-by-step approach beyond. In this Field guide, practical pathways are presented to provide a comprehensive approach for assessing and improving crop water productivity in small-scale agriculture. The Field guide draws lessons learned in three countries (Burkina Faso, Morocco and Uganda) within the framework of FAO project “Strengthening Agricultural Water Efficiency and Productivity at the African and Global Level” funded by Swiss Agency for Development and Cooperation (SDC).
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9251319987 Total Pages :80 pages Book Rating :4.2/5 (513 download)
Book Synopsis Policy guide to improve water use efficiency in small-scale agriculture by : Food and Agriculture Organization of the United Nations
Download or read book Policy guide to improve water use efficiency in small-scale agriculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-11-27 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This policy guide is drawn from the results of the FAO Project “Strengthening Agricultural Water Efficiency and Productivity at the African and Global Level” funded by the Swiss Agency for Development and cooperation (SDC). The long term vision of the project was that the in-country findings and processes which are of common nature can be synthesized and scaled up to other countries in a regional cooperation process and globally. This will eventually lead to the increase of investment in Agricultural Water Management (AWM) in the targeted countries – and beyond – that is socially equitable, profitable at the farm level, economically viable, environmentally neutral or positive, and sustainable. The Guide focuses on the specific component of Enhancing Water Use Efficiency at small scale irrigation as one of the major outputs of the project. While creating and implementing Water Use Efficiency (WUE) measures at field level, existing policy frameworks were mapped and analyzed, and recommendations were defined as scalable policy instruments with the aim to demonstrate case-specific experiences to the collectively agreed goal of using water resources efficiently.
Book Synopsis The World Bank Research Program 2008-2009 by : World Bank
Download or read book The World Bank Research Program 2008-2009 written by World Bank and published by World Bank Publications. This book was released on 2009 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'The World Bank Research Program 2008-2009: Abstracts of Current Studies' is a compendium of research projects initiated, ongoing, or completed in fiscal years 2008 to 2009 by World Bank staff and consultants.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9251334412 Total Pages :210 pages Book Rating :4.2/5 (513 download)
Book Synopsis The State of Food and Agriculture 2020 by : Food and Agriculture Organization of the United Nations
Download or read book The State of Food and Agriculture 2020 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2020-11-26 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intensifying water constraints threaten food security and nutrition. Thus, urgent action is needed to make water use in agriculture more sustainable and equitable. Irrigated agriculture remains by far the largest user of freshwater, but scarcity of freshwater is a growing problem owing to increasing demand and competition for freshwater resources. At the same time, rainfed agriculture is facing increasing precipitation variability driven by climate change. These trends will exacerbate disputes among water users and inequality in access to water, especially for small-scale farmers, the rural poor and other vulnerable populations. The State of Food and Agriculture 2020 presents new estimates on the pervasiveness of water scarcity in irrigated agriculture and of water shortages in rainfed agriculture, as well as on the number of people affected. It finds major differences across countries, and also substantial spatial variation within countries. This evidence informs a discussion of how countries may determine appropriate policies and interventions, depending on the nature and magnitude of the problem, but also on other factors such as the type of agricultural production system and countries’ level of development and their political structures. Based on this, the publication provides guidance on how countries can prioritize policies and interventions to overcome water constraints in agriculture, while ensuring efficient, sustainable and equitable access to water.
Author : Publisher : ISBN 13 :1464812985 Total Pages :99 pages Book Rating :4.4/5 (648 download)
Download or read book written by and published by . This book was released on with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The influence of current and future climate-induced risk on the agricultural sector in East and Central Africa by :
Download or read book The influence of current and future climate-induced risk on the agricultural sector in East and Central Africa written by and published by ILRI (aka ILCA and ILRAD). This book was released on 2009 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-resources Investigations Report by :
Download or read book Water-resources Investigations Report written by and published by . This book was released on 1996 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 6th Near East-South Asia Regional Irrigation Practices Seminar, Amman, Jordan, 1966 by :
Download or read book 6th Near East-South Asia Regional Irrigation Practices Seminar, Amman, Jordan, 1966 written by and published by . This book was released on 1966 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
