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 Institutions impact synergies and food security a methodology with results from the Kala Oya Basin Sri Lanka written by Saleth, Rathinasamy Maria, Dinar, A., Neubert, S., Kamaiah, B., Manoharan, S., Abayawardana, Sarath, Ariyaratne, Ranjith, de Silva, S. and published by IWMI. This book was released on 2007 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The success of development programs depends on the role of underlying institutions and the impact synergies from closely related programs. Existing literature has limitations in accounting for these critical factors. This paper fills this gap by developing a methodology, which can quantify both the institutional roles in impact generation and the impact synergies from related programs. The methodology is applied to the Kala Oya Basin in Sri Lanka for evaluating the impacts of three development programs and 11 institutions on food security. The results provide valuable insights on the relative roles of institutions and the varying flow of impact synergies both within and across impact pathways.
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 change in the Greater Mekong Subregion GMS written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2017-01-01 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report looks at both negative and positive drivers that affect forest change in the Greater Mekong Sub-region (GMS) in the last 25 years (1990-2015) in order to have a better understanding of their influence on forests in the region. It evaluates policies and measures in relation to drivers of forest change. Agricultural expansion, infrastructure development particularly hydropower dams and road construction, logging, mining operations and forest fires are the most dominant drivers of fores t loss in GMS. At a positive note, almost all countries in the region have adopted policies that support SFM and balance the social, economic and environmental aspects of forestry. Furthermore, there seems to be a movement towards sustainable policies which influence the shift towards SFM, forest conservation and afforestation and reforestation. Although it seems the policies addressing the drivers of deforestation exist at local, national and international level, their effectiveness has been mi xed. T his report presents forest changes in the Greater Mekong Subregion (GMS) over a period of 25 years between 1990 and 2015. It describes key drivers that have affected these changes. Some drivers influenced forests negatively in that they resulted in deforestation and forest degradation. On the other hand, positive drivers promoted sustainable forest management (SFM), afforestation and reforestation and forest conservation.
Download or read book Changing consumption patterns Implications on food and water demand in India written by Amarasinghe, Upali A., Shah, Tushaar, Singh, Om Prakash and published by IWMI. This book was released on 2007 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing income and urbanization are triggering a rapid change in food consumption patterns in India. This report assesses India’s changing food consumption patterns and their implications on future food and water demand. According to the projections made in this study, the total calorie supply would continue to increase, but the dominance of food grains in the consumption basket is likely to decrease by 2050, and the consumption of non-grain crops and animal products would increase to provide a major part of the daily calorie supply. Although the total food grain demand will decrease, the total grain demand is likely to increase with the increasing feed demand for the livestock. The implications of the changing consumption patterns are assessed through consumptive water use (CWU) under the assumptions of full or partial food self-sufficiency.
Download or read book India s water future to 2025 2050 business as usual scenario and deviations written by Amarasinghe, Upali, Shah, Tushaar, Turral, Hugh, Anand, B. K. and published by IWMI. This book was released on 2007 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a rapidly expanding economy many changes are taking place in India today. The business-as-usual (BAU) scenario, which assumes the continuation of current trends of key water demand drivers, will meet the future food demand. However, it leads to a severe regional water crisis by 2050, where many river basins will reach closure, will be physically water-scarce and will have regions with severely overexploited groundwater resources. While the alternative scenarios of water demand show both optimistic and pessimistic water futures, the scenario with additional productivity growth is the most optimistic, with significant scope for reducing future water demand.
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 Agricultural water management in a water stressed catchment Lessons from the RIPARWIN Project written by McCartney, Matthew P., Lankford, B. A., Mahoo, H. and published by IWMI. This book was released on 2007 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the face of growing water stress and increasing concerns over the sustainability of water use, Tanzania has, in common with many other countries in Africa, focused largely on the development of more integrated catchment-wide approaches to water management. In the Great Ruaha River Basin, considerable effort has gone into increasing water productivity and the promotion of mechanisms for more efficient allocation of water resources. Over a period of five years, the RIPARWIN project investigated water management in the basin and evaluated the effectiveness of some of the mechanisms that have been introduced. The study findings are relevant to basins in developing countries where there is competition for water and irrigation is one of the main uses.
Download or read book Shifting Waterscapes Explaining Basin Closure in the Lower Krishna Basin South India written by Jean-Philippe Venot and published by IWMI. This book was released on with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progressive agricultural and water development in the Krishna Basin in South India has led to a rising over commitment of water resources and signs of basin closure are apparent during dry periods. As human consumptive uses are approaching the limits of water availability, this report focuses on the Lower Krishna Basin that bears the brunt of any intervention upstream. Capturing the process of basin closure requires an understanding of the political dimension of access to water and the scope for change. As basin closure intensifies the interconnectedness of ecosystems and water users, adjustments and management decisions result in spatial re-appropriation of water and basin-wide strategies for water management and development that start with the definition and the implementation of water allocation mechanisms are increasingly needed.
Download or read book Hydrological and environmental issues of interbasin water transfers in India a case of the Krishna River Basin written by Smakhtin, Vladimir, Gamage, Nilantha, Bharati, Luna and published by IWMI. This book was released on 2007 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study attempts to examine those unique aspects of interbasin water transfer planning, which are of critical importance to the sustainable water resources development in India. It focuses on the crucial aspect of accurate quantification of surface water availability, which determines the entire feasibility of a water transfer. It also illustrates the impacts of upstream water resources development on the deltas’ environment thus justifying the deltas’ environmental flow requirements. The report targets government departments, research institutions and NGOs – primarily in India and other countries of the region – which are engaged or interested in issues of interbasin water transfer and environmental water management. The research intends to: contribute to the effectiveness of water resources planning and management in India; emphasize the need for urgent improvement of access to hydrometeorological data in the country; and aim to stimulate further debate on water transfers.
Download or read book Treadle pump irrigation and poverty in Ghana written by Adeoti, Adeoti, Barry, Boubacar, Namara, Regassa, Kamara, Abdul, Titiati, Atsu and published by IWMI. This book was released on 2007 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treadle pump (TP) technology has been promoted by Enterprise Works Worldwide (EWW) as an alternative to the traditional rope and bucket irrigation that is necessary to overcome the challenge of uncertain and inadequate rainfall for agricultural production. The aim is to improve output, increase incomes and reduce poverty among farm households. This study examines the strategies used for dissemination of the TP and the dynamics of its adoption and impacts, with a special focus on poverty reduction. The results of the study reveal that time and labor savings for irrigation, increased size of irrigated areas and lack of fuel requirements are the attractive features of the TP for those who adopt it. Adoption of TP increases land and labor productivities; and also net farm incomes. The study also demonstrates that adoption of the TP reduces poverty.
Download or read book Rural urban food nutrient and virtual water flows in selected West African cities written by Drechsel, Pay, Graefe, S., Fink, M. and published by IWMI. This book was released on 2007 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impacts of increasing population pressure on food demand and land and water resources have sparked interest in nutrient and water balances and flows at a range of scales. In IWMI Research Report 115, it was tried for the first time to quantify rural-urban food flows for selected cities in Ghana and Burkina Faso to analyse their dependency on food supplied from rural vs. peri-urban vs. urban farming. Both, the urban nutrient and water footprints are closely interlinked. Currently, 80-95 percent of the domestic water used and the nutrients consumed go to waste without treatment or resource recovery. The economic dimensions are significant. Options to reduce the environmental burden by closing the rural-urban water and nutrient cycles are discussed.
Download or read book Evaluation of historic current and future water demand in the Olifants River Catchment South Africa written by McCartney, Matthew P., Arranz, Roberto and published by IWMI. This book was released on 2007 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water resource development has played a significant role in the expansion of agriculture and industry in the Olifants River Catchment. However, currently water deficit is one of the major constraints hampering development in the catchment; both the mining and agricultural sectors are producing below optimal levels because of their reliance on insufficient supplies. In this study, the Water Evaluation and Planning (WEAP) model was used to evaluate scenarios of historic, current and future water demand in the catchment. For each scenario, the WEAP model was used to simulate demand in five different sectors (rural, urban, mining, commercial forestry and irrigation) over a 70-year period of varying rainfall and hydrology. Levels of assured supply were estimated for each sector and the economic cost of failing to provide water was predicted. For the future scenarios, the impact of infrastructure development and water conservation measures were assessed. The study illustrates how a relatively simple model can provide useful insight for resource planning and management.
Download or read book Developing procedures for assessment of ecological status of Indian River Basins in the context of environmental water requirements written by Smakhtin, Vladimir, Arunachalam, M., Behera, S., Chatterjee, A., Das, S., Gautam, P., Joshi, G. D., Sivaramakrishnan, K. G., Unni, K. S. and published by IWMI. This book was released on 2007 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report attempts to introduce a prototype scoring system for the ecological status of rivers in India and illustrate it through the applications in several major river basins. This system forms part of the desktop environmental flow assessment and is based on a number of indicators reflecting ecological condition and sensitivity of a river. The unique aspect of this study is that it interprets, for the first time, the existing ecological information for Indian rivers in the context of environmental flow assessment. The report targets government departments, research institutions and NGOs which are engaged in environmental flow management and associated policy development, and suggests some subsequent steps in environmental flow work in India.
Download or read book Agent Based Modeling of Environmental Conflict and Cooperation written by Todd K. BenDor and published by CRC Press. This book was released on 2018-10-12 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conflict is a major facet of many environmental challenges of our time. However, growing conflict complexity makes it more difficult to identify win-win strategies for sustainable conflict resolution. Innovative methods are needed to help predict, understand, and resolve conflicts in cooperative ways. Agent-Based Modeling of Environmental Conflict and Cooperation examines computer modeling techniques as an important set of tools for assessing environmental and resource-based conflicts and, ultimately, for finding pathways to conflict resolution and cooperation. This book has two major goals. First, it argues that complexity science can be a unifying framework for professions engaged in conflict studies and resolution, including anthropology, law, management, peace studies, urban planning, and geography. Second, this book presents an innovative framework for approaching conflicts as complex adaptive systems by using many forms of environmental analysis, including system dynamics modeling, agent-based modeling, evolutionary game theory, viability theory, and network analysis. Known as VIABLE (Values and Investments from Agent-Based interaction and Learning in Environmental systems), this framework allows users to model advanced facets of conflicts—including institution building, coalition formation, adaptive learning, and the potential for future conflict—and conflict resolution based on the long-term viability of the actors’ strategies. Written for scholars, students, practitioners, and policy makers alike, this book offers readers an extensive introduction to environmental conflict research and resolution techniques. As the result of decades of research, the text presents a strong argument for conflict modeling and reviews the most popular and advanced techniques, including system dynamics modeling, agent-based modeling, and participatory modeling methods. This indispensable guide uses NetLogo, a widely used and free modeling software package, to implement the VIABLE modeling approach in three case study applications around the world. Readers are invited to explore, adapt, modify, and expand these models to conflicts they hope to better understand and resolve.
Download or read book Land Allocation in Vietnam s Agrarian Transition written by Martin Ravallion and published by World Bank Publications. This book was released on 2003 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: While liberalizing key factor markets is a crucial step in the transition from a socialist control-economy to a market economy, the process can be stalled by imperfect information, high transaction costs, and covert resistance from entrenched interests. Ravallion and van de Walle study land-market adjustment in the wake of Vietnam's reforms aiming to establish a free market in land-use rights following de-collectivization. Inefficiencies in the initial administrative allocation are measured against an explicit counterfactual market solution. The authors' tests using a farm-household panel data set spanning the reforms suggest that land allocation responded positively but slowly to the inefficiencies of the administrative allocation. They find no sign that the transition favored the land rich or that it was thwarted by the continuing power over land held by local officials. This paper"a joint product of the Poverty Team and the Public Services Team, Development Research Group"is part of a larger effort in the group to understand the welfare impacts of major policy reforms.
Download or read book Upland Rice Household Food Security and Commercialization of Upland Agriculture in Vietnam written by S. Pandey and published by Int. Rice Res. Inst.. This book was released on 2006 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
