Download or read book Carbon land and water A global analysis of the hydrologic dimensions of climate change mitigation through afforestation reforestation written by Zomer, Robert, Trabucco, Antonio, van Straaten, Oliver and published by IWMI. This book was released on 2006 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report highlights the potentially significant impacts on the hydrologic cycle and the importance of considering secondary effects, particularly with regard to water, resulting from the widespread adoption of global climate change mitigation measures. It is recommended that the implicit hydrologic dimensions of climate change mitigation should be more formally articulated within the international environmental conventions, and recognized within future UNFCCC negotiations on the CDM-AR provisions.
Download or read book Conserving Land Protecting Water written by Deborah Bossio and published by CABI. This book was released on 2008 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: The degradation of land and water resources as a result of agricultural activity has had an enormous impact on human societies and economies. It is predicted that, by 2025, most developing countries will face physical or economic water scarcity, compounded by land degradation. In order to alleviate this problem, an advanced understanding of the state of our water resources and the relationships between land use, water management and social systems is needed. Conserving Land, Protecting Water includes an overview of global patterns of land and water degradation and discusses new insights drawn from successful case studies on reversing soil and water degradation and their impact on food and environmental security.
Download or read book Trees and water smallholder agroforestry on irrigated lands in Northern India written by Zomer, Robert J., Bossio, Deborah A., Trabucco, Antonio, Yuanjie, Li, Gupta, Diwan C., Singh, Virendra P. and published by IWMI. This book was released on 2007 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trees are increasingly grown on-farm to supply wood and biomass needs within developing countries. Over the last several decades, within the irrigated rice-wheat growing lands of northern India, fast-growing poplar trees have been planted on tens of thousands of small farms. Recent debate regarding afforestation has raised the issue that water use is often increased when trees are planted. This ongoing debate focuses primarily on afforestation or reforestation of upland and rain-fed agricultural areas, and off-site impacts such as reduced streamflow. Adoption of poplar agroforestry in northern India, in contrast, is occurring in areas where land and water are already intensively used and managed for agricultural production. This study based on farmer survey data, used remote sensing and spatial hydrological modeling to investigate the importance and role of the poplar trees within the agricultural landscape, and to estimate their water use. Overall, results illustrate a potential for addressing the increasing global demand for wood products with trees grown on-farm within irrigated agroforestry systems.
Download or read book Forest Management and Water Resources in the Anthropocene written by Ge Sun and published by MDPI. This book was released on 2018-04-13 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Forest Management and Water Resources in the Anthropocene" that was published in Forests
Download or read book Resilience analysis in Niger 2011 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-10-25 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is part of a series of country level analyses prepared by the FAO Resilience Analysis and Policy (RAP) Team. The series aims at providing programming and policy guidance to policy makers, practitioners, UN agencies, NGO and other stakeholders by identifying the key factors that contribute to the resilience of households in food insecure countries and regions. The analysis is largely based on the use of the FAO Resilience Index Measurement and Analysis (RIMA) tool. Structural Equation Models are applied to estimate resilience capacity and structure. Findings are integrated with other more traditional measures of poverty and food insecurity.
Download or read book Impacts of climate change on water resources and agriculture in Sri Lanka a review and preliminary vulnerability mapping written by Eriyagama, N. and published by IWMI. This book was released on 2010 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is ample evidence to suggest that Sri Lanka’s climate has already changed. However, the bigger question of national importance is what Sri Lanka’s climate will look like in 50 or 100 years and how prepared the country is to face such changes. This report reviews the status of climate change (CC) research/activities in Sri Lanka in terms of observed and projected climatic changes, their impacts on water resources and agriculture, CC mitigation and adaptation, and research needs. The study also developed a pilot level CC Vulnerability Index, which was subsequently mapped at district level. The maps indicate that typical farming districts such as Nuwara Eliya, Badulla, Moneragala, Ratnapura and Anuradhapura are the most vulnerable to CC due to their heavy reliance on primary agriculture.
Download or read book Use of a hydrological model for environmental management of the Usangu Wetlands Tanzania written by Kashaigili, J. J., McCartney, Matthew, Mahoo, H. F., Lankford, B. A., Mbilinyi, B. P., Yawson, D. K., Tumbo, S. D. and published by IWMI. This book was released on 2006 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the findings of a study to assess changes to flows into, and downstream of, the Usangu Wetlands, located in the headwaters of the Great Ruaha River, Tanzania. Hydrological data, in conjunction with remote sensing techniques, were used to provide insights into changes that have occurred to the Eastern Wetland. Results indicate that, between 1958 and 2004, inflows to the wetland declined by about 70 percent in the dry season months (July to November) as a consequence of increased human withdrawals, primarily for irrigation.
Download or read book Water smart agriculture in East Africa written by Nicol, A. and published by IWMI. This book was released on 2015-03-01 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate change impacts and adaptation in Nepal written by Bartlett, R. and published by IWMI. This book was released on 2010-12-29 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The impact of climate change (CC) on water resources is likely to affect agricultural systems and food security. This is especially true for Nepal, a least developed country, where a high percentage of the population is dependent on agriculture for its livelihoods. It is thus crucial for Nepal’s leaders and resource managers to draft and begin implementing national adaptation plans. This working paper aims to create a more comprehensive understanding of how the impacts of CC will be realized at different scales in Nepal, from household livelihoods to national food security, and the many institutions governing the ultimate adaptation process.
Download or read book Informal Irrigation in Urban West Africa written by Pay Drechsel and published by IWMI. This book was released on 2006 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report tries to provide a state-of-the-art overview on irrigated urban agriculture in the West African subregion based on a comprehensive literature review supported by the results of three IWMI FAO projects.
Download or read book Malaria mosquito resistance to agricultural insecticides Risk area mapping in Thailand written by Overgaard, Hans and published by IWMI. This book was released on 2006 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to identify risk areas in Thailand where insecticide resistance in malaria mosquitoes might develop as a consequence of crop protection activities in agriculture. The study provides guidelines on how to delineate risk areas. A review of insecticide resistance in disease vectors and the potential role of agricultural insecticides is presented.
Download or read book An Assessment of Environmental Flow Requirements of Indian River Basins written by V. Y. Smakhtin and published by IWMI. This book was released on 2006-01-01 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: "CGIAR Challenge Program on Water & Food; Future Harvest"--Cover.
Download or read book Renewable Energy Sources and Climate Change Mitigation written by Ottmar Edenhofer and published by Cambridge University Press. This book was released on 2011-11-21 with total page 1089 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Intergovernmental Panel on Climate Change Special Report (IPCC-SRREN) assesses the potential role of renewable energy in the mitigation of climate change. It covers the six most important renewable energy sources – bioenergy, solar, geothermal, hydropower, ocean and wind energy – as well as their integration into present and future energy systems. It considers the environmental and social consequences associated with the deployment of these technologies and presents strategies to overcome technical as well as non-technical obstacles to their application and diffusion. SRREN brings a broad spectrum of technology-specific experts together with scientists studying energy systems as a whole. Prepared following strict IPCC procedures, it presents an impartial assessment of the current state of knowledge: it is policy relevant but not policy prescriptive. SRREN is an invaluable assessment of the potential role of renewable energy for the mitigation of climate change for policymakers, the private sector and academic researchers.
Download or read book An Irrigated Area Map of the World 1999 Derived from Remote Sensing written by Prasad Srinivasa Thenkabail and published by IWMI. This book was released on 2006 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research report presents the results of a global analysis of multi-temporal time series at nominal 10 kilometer pixel resolution. Statistics of irrigation at country level are derived from these maps for different seasons and for the entire year (annualized) for the nominal year of 1999. Three methods of area abstraction are used and compared, and three methods of accuracy assessment are applied. The annualized irrigated areas of the world at the end of the last millennium were about 480 Mha of which there were 263 Mha for season 1, 176 Mha for season 2, and 41 Mha for continuous cropping. Of this, Asia alone accounts for 78 percent (375 Mha) with 59 percent from China and India. The country statistics are compared with FAO country-level statistics (see Annex I). The IWMI GIAM 10 km V2.0 map were tested based on 3 sources of independent data resulting in accuracies between 84 and 91 percent with errors of omission not exceeding 16 percent and errors of commission less than 21 percent. The total area available for irrigation (TAAI; the nearest equivalent to FAO’s equipped area) was 412 Mha.
Download or read book The impact of government policies on land use in Northern Vietnam An institutional approach for understanding farmer decisions written by Clement, Floriane, Amezaga, Jaime M., Orange, Didier, Toan, Tran Duc and published by IWMI. This book was released on 2007 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report identifies the driving forces for reforestation in three villages of Northern Vietnam. Using an institutional analysis focused on the rules governing upland access and use, the authors assess the relative impact of state policies (reforestation programs and forestland allocation) on land use change. Findings show that the latter are indirectly responsible for reforestation, but not because of the incentives they provided. Instead, they disrupted the local rules governing annual crop cultivation and grazing activities leading to the end of annual cropping. Tree plantation was chosen by farmers as a last resort option. Lessons learned highlight the importance of local level studies and collective rules for land management.
Download or read book Applying the Gini Coefficient to measure inequality of water use in the Olifants River water management area South Africa written by Cullis, J. and published by IWMI. This book was released on 2007 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present study explores the application of the Gini Coefficient, which has hitherto only been used for income and land distribution, to quantify the distribution of water resources. The tool is tested in the water-stressed Olifants Water Management Area, in South Africa. Using readily available information on water use registrations, water use estimates, and census data, two versions of the Gini Coefficient are calculated. The first measures the distribution of the allocation of direct water use in rural areas and was estimated at 0.96 in the study area. In other words, 99.5 percent of the rural households are entitled to useonly 5 percent of the available water. The second version calculates the distribution of the indirect benefits of water use in the form of direct employment. This is shown to have a Gini Coefficient of 0.64. Using the Gini Coefficient an assessment was also made of the impacts of different policy scenarios. It was found that by more than doubling the amount of water used by rural households from the current 225 cubic meters per household per annum (m3/hh/annum) to 610 m3/hh/annum, which would enable each household to meet its basic human needs of 50 litres/person/day and irrigate 1,000 square meters (m2), would reduce the Gini Coefficient significantly. Yet, this would only require the large-scale registered users to reduce their current irrigation water use entitlement by 6 percent or the largest ten users to reduce their use by 20 percent each.
Download or read book Closing of the Krishna Basin Irrigation streamflow depletion and macroscale hydrology written by Biggs, Trent, Gaur, Anju, Scott, C., Thenkabail, Prasad, Gangadhara Rao, Parthasaradhi, Gumma, Murali Krishna, Acharya, Sreedhar, Turral, Hugh and published by IWMI. This book was released on 2007 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discharge from the Krishna River into the ocean decreased by 75 percent from 1960-2005, and was zero during a recent multi-year drought. This paper describes the physical geography and hydrology of the Krishna Basin, including runoff production and a basic water account based on hydronomic zones. More than 50 percent of the basin’s irrigated area is groundwater irrigation, which is not currently included in inter-state allocation rules. Future water allocation will require inclusion of the interactions among all irrigated areas, including those irrigated by groundwater and surface water.
