Suchergebnisse

Pakistan's agriculture is almost wholly dependent on
irrigation and irrigated land supplies more than 90 percent of
agricultural production. Irrigation is central to Pakistan's economy.
Massive investments in irrigation contributed to the development of one
of the largest Indus Basin Irrigation System. Despite heavy budgetary
inputs in irrigation system, it is facing shortage of resources and
suffering from operational problems. The sustainability of irrigated
agriculture is threatened due to problems of waterlogging and salinity,
inadequate operation and maintenance, insufficient recovery of O&M
expenditure, inequitable distribution, environmental degradation,
institutional issues etc. The growing scarcity of water sets the future
stage for intensive competition over water between agriculture and
non-agricultural users. The growing need for food and fibre requirements
of increasing population further limits the per capita availability of
water. Due to the limited prospects for expanding irrigation facilities,
the projected increase in irrigated agriculture will have to come from
significant improvement in the performance of existing systems.
Policy-makers and planners are of the view that Pakistan's irrigated
agriculture requires new strategies to enhance input efficiency and
maintain and improve the quality of the resource base and to get the
irrigation system out of crises. There is a global movement for
searching a new type of relationship between the managers of irrigated
agriculture and farmers. Such options are being considered by government
at various levels to put the system on sustainable development path. In
addressing the environmentally sustainable water resource management in
Pakistan, the paper makes an attempt to provide an over-view of water
resource issues and options.

"This book provides insight into the hydrology, ecosystem services and management of water resources in the Paraná River basin, including the importance of water to the socio-economic development of the countries within the watershed. Running through Brazil. Paraguay and Argentina, the Paraná River and its watershed is home to some of South America's major population centers as well as important ecosystems threatened by development. At the same time, the river is also a major resource driving the economies of the nations within its boundaries. This volume examines the impacts of environmental degradation, and the tradeoffs between the energy sector and the maintenance of ecosystem services. In particular, it focuses on the threats from development to sensitive ecosystems within the basin and the challenges of transboundary management of water resources. In addition to presenting wider perspectives on water management, the volume specifically covers water infrastructure, aquatic ecosystems, water quality, geomorphological Influences and the impact of climate change. Finally, by assessing each country's current status in meeting the Sustainable Development Goals this volume provides a timely analysis as national governments within the basin are becoming increasingly concerned about the sustainability of the freshwater ecosystems within the Paraná River basin. This book will be of great interest to students and scholars of water and natural resource management, environmental policy, sustainable development and Latin American studies. It will also be relevant to water management professionals"--

Water is essential for sustainable human, species and biotic organism in the earth. Sustainability is only possible when we have better resource management particularly water. A better water management has its multiple linkage in economic development and maintaining ecosystems in the state. In Uttrakhand water management is prerequisite as it is reach with rivers and known as "water bank" state for the other state but for its own requirement the water resources have not been evenly distributed and people had to walk kilometers for potable water. Lack of water management people are suffer badly, natural sources are drying up, which in long run having very significant impact on environment and climate change. So, this paper is focused on better water management for hilly area of Uttarakhand.

Global change possesses serious challenges for water managers and scientists. In mountain areas, where water supplies for half of the world population originate, climate and hydrologic models are still subject to considerable uncertainty. And yet, critical decisions have to be taken to ensure adequate and safe water supplies to billions of people, millions of farmers and industries, without further deteriorating rivers and water bodies. While global warming is known to cause glaciers' retreat and reduced snow packs around the world, it is not clear that mountain discharge will be lower. What is widely recognised is that water management must be adapted to accommodate significant regime changes. However, this inevitably involves managing transboundary rivers, adding further complexity to putting principles in practice. This book takes global warming and the importance of mountain areas in world water resources as the starting point. First, it provides detailed reviews of the processes going on in several rivers systems and world regions in Europe (Rhône and Ebro), North America (Canadian Rockies, Western US and Mexico), the Middle East (Jordan), Africa (Tunisia, Kenya and South Africa). These contexts provide case studies and examples that show the difficulties and potential for adaptation to global change. Land-use, economics, numerous modeling approaches are some of the cross-cutting issues covered in the chapters. The volume also includes the views of water practitioners, with two chapters authored by members of the US-Canada International Joint Commission, an industrialist from Western Canada and an environmental leader in Spain. By combining a rich set of contexts and approaches, the volume succeeds in offering a view of the global challenges faced by water agencies, international donors and researchers around the world. A case is made in

"This book compiles selected speeches and articles delivered and authored by Minister Chen Lei since 2008. These speeches and articles reflect Minister Chen Lei's thinking on how to manage water resources in a vast and fast developing country. The book also shed light on the prevalent water-related problems in China, the strategies to deal with them and a vision for future development."--Pref

This book aims to come up with views to address the queries of planners, policymakers, and general people for water resources management under uncertainty of climate change, including examples from Asia and Europe with successful adaptive measures to change the challenge of climate change into opportunities. The availability of clean water is a major global challenge for the future due to a rapidly growing population and urbanization where further stress in water resources is expected due to the impact of climate change. The wide range of impacts includes for example changes in hydrology, mois.

This study provides an overview of the water security situation in the People's Republic of China. It assesses the policy and institutional requirements for addressing issues and recommends strategic areas for strengthening and reform. The five dimensions of water security covered in the research are domestic water security, economic production water security, environmental water security, ecological water security, and resilience to water-related disasters. A summary of key policy recommendations identifies the essential measures needed to effectively move forward the alleviation of water security issues in different time frames.