22,664 research outputs found

    A typology of marine and estuarine hazards and risks as vectors of change : a review for vulnerable coasts and their management

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    This paper illustrates a typology of 14 natural and anthropogenic hazards, the evidence for their causes and consequences for society and their role as vectors of change in estuaries, vulnerable coasts and marine areas. It uses hazard as the potential that there will be damage to the natural or human system and so is the product of an event which could occur and the probability of it occurring whereas the degree of risk then relates to the amount of assets, natural or societal, which may be affected. We give long- and short-term and large- and small-scale perspectives showing that the hazards leading to disasters for society will include flooding, erosion and tsunamis. Global examples include the effects of wetland loss and the exacerbation of problems by building on vulnerable coasts. Hence we emphasise the importance of considering hazard and risk on such coasts and consider the tools for assessing and managing the impacts of risk and hazard. These allow policy-makers to determine the consequences for natural and human systems. We separate locally-derived problems from large-scale effects (e.g. climate change, sea-level rise and isostatic rebound); we emphasise that the latter unmanaged exogenic pressures require a response to the consequences rather than the causes whereas within a management area there are endogenic managed pressures in which we address both to causes and consequences. The problems are put into context by assessing hazards and the conflicts between different uses and users and hence the management responses needed. We emphasise that integrated and sustainable management of the hazards and risk requires 10-tenets to be fulfilled

    Participatory approach for integrated basin planning with focus on disaster risk reduction : the case of the Limpopo river

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    This paper defends the idea that a participatory approach is a suitable method for basin planning integrating both water and land aspects. Assertions made are based on scientific literature review and corroborated by field experience and research carried out in the Limpopo River basin, a transboundary river located in southern Africa which is affected by periodical floods. The paper explains how a basin strategic plan can be drafted and disaster risk reduction strategies derived by combining different types of activities using a bottom-up approach, despite an institutional context which operates through traditional top-down mechanisms. In particular, the "Living with Floods" experience in the lower Limpopo River, in Mozambique, is described as a concrete example of a disaster adaptation measure resulting from a participatory planning exercise. In conclusion, the adopted method and obtained results are discussed and recommendations are formulated for potential replication in similar contexts of the developing world

    Institutional and policy analysis of river basin management: the Fraser River Basin, Canada

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    The authors describe and analyze a nongovernmental, multi-stakeholder, consensus-based approach to river basin management in the Fraser River basin in Canada. The Fraser River drains 238,000 km2 of British Columbia, supporting nearly 3 million residents and a diverse economy. Water management issues include water quality and allocation, flood protection, and emerging scarcity concerns in portions of the basin. The Fraser Basin Council (FBC) is a locally-initiated nongovernmental organization (NGO) with representation from public and private stakeholders. Since evolving in the 1990s from earlier programs and projects in the basin, FBC has pursued several objectives related to a broad concept of basin"sustainability"incorporating social, economic, and environmental aspects. The NGO approach has allowed FBC to match the boundaries of the entire basin, avoid some intergovernmental turf battles, and involve First Nations communities and private stakeholders in ways governmental approaches sometimes find difficult. While its NGO status means that FBC cannot implement many of the plans it agrees on and must constantly work to maintain diverse yet stable funding, FBC holds substantial esteem among basin stakeholders for its reputation for objectivity, its utility as an information sharing forum, and its success in fostering an awareness of interdependency within the basin.Agricultural Knowledge&Information Systems,Water Conservation,Environmental Economics&Policies,Water and Industry,Sanitation and Sewerage,Water Supply and Sanitation Governance and Institutions,Drought Management,Town Water Supply and Sanitation,Water and Industry,Water Conservation

    Supporting evidence-based adaptation decision-making in South Australia: a synthesis of climate change adaptation research

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    This research synthesis provides policy-makers and practitioners with an understanding of the building blocks for effective adaptation decision-making, as evidenced through the NCCARF research program. It synthesised a portfolio of adaptation research for each Australian state and territory and addressing the complex relationships between research and policy development.   Each state and territory synthesis report directs users to research relevant identified priorities

    Urban and river flooding: Comparison of flood risk management approaches in the UK and China and an assessment of future knowledge needs

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    Increased urbanisation, economic growth, and long-term climate variability have made both the UK and China more susceptible to urban and river flooding, putting people and property at increased risk. This paper presents a review of the current flooding challenges that are affecting the UK and China and the actions that each country is undertaking to tackle these problems. Particular emphases in this paper are laid on (1) learning from previous flooding events in the UK and China, and (2) which management methodologies are commonly used to reduce flood risk. The paper concludes with a strategic research plan suggested by the authors, together with proposed ways to overcome identified knowledge gaps in flood management. Recommendations briefly comprise the engagement of all stakeholders to ensure a proactive approach to land use planning, early warning systems, and water-sensitive urban design or redesign through more effective policy, multi-level flood models, and data driven models of water quantity and quality

    Towards a Resilient Future: Experiences with Community Managed Disaster Risk Reduction and Climate Change Adaptation

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    This testimony shows the urgency of the problems faced by people on the front line of climate change, which is exposing more and more people to increased risk of dis This testimony shows the urgency of the problems faced by people on the front line of climate change, which is exposing more and more people to increased risk of diaster and directly affecting their lives and livelihoods. Tragically, the global community turns a blind eye to the severity of the risks posed by climate change and is doing too little to help people prepare themselves for these risks. Community managed disaster risk reduction (CMDRR) is an effective strategy of addressing the impacts and effects of climate change and reducing communities' vulnerability to disasters

    Institutional and policy analysis of river basin management: the Brantas river basin, East Java, Indonesia

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    The authors describe and analyze an unconventional approach to river basin management in a developing country undergoing rapid economic, political, and institutional change. The founding of the Brantas River Basin Management Corporation (Perum Jasa Tirta I - PJT 1), a national state-owned company for river basin management, initiated an emphasis on river basin management to operate and maintain existing infrastructure, plan and implement the allocation of water, and address problems that affect basin-level water resources. The Brantas River basin is located within the province of East Java in Indonesia. It has an area of approximately 11,800 square kilometers and makes up 25 percent of East Java's land area. The basin's population, which amounts to nearly 15 million, has increased by 53.4 percent over the past 30 years and represents 42.4 percent of East Java's population with a density of 1,249 per square kilometer. A shift has taken place in Indonesia since the mid-1990s from emphasizing infrastructure development to strengthening institutional aspects (hydrology, flood fighting, flood warning, flood management, and so on). The institutional arrangement for water resources management in the Brantas basin through a state-owned corporation is an interesting model. PJT I has achieved results in implementing a reasonably good system of water allocation and management and a reliable flood forecasting system, as well as maintaining major infrastructure in fairly good condition. Managing water quality, catchment conditions, and the river environment, however, are the responsibility of many entities, and there is need for greater coordination and authority to address these issues.Water Supply and Sanitation Governance and Institutions,Town Water Supply and Sanitation,Drought Management,Water and Industry,Water Conservation
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