Linkages between irrigation practices and groundwater availability PDF Download

Author: Viossanges, Mathieu
Publisher: International Water Management Institute (IWMI).
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 65

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Author: Marcus Moench
Publisher: Food & Agriculture Org.
ISBN: 9789251049044
Category : Business & Economics
Languages : en
Pages : 68

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Book Description
This study attempts to re-frame the current thinking on groundwater development and the implications for food security. Groundwater is important in agriculture as it provides a reliable fallback when rainfeeding fails. It is therefore instrumental in managing risk and optimizing food production. However accessing groundwater has become habit and turned to dependency. Resources limits on many key aquifers have been exceeded and competition for groundwater has become intense. This study highlights the role of adaptive strategies in dealing with aquifer management and indicates directions of research and management.

Author: Academy of Sciences of the Islamic Republic of Iran
Publisher: National Academies Press
ISBN: 0309181194
Category : Science
Languages : en
Pages : 292

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Book Description
In December 2002, a group of specialists on water resources from the United States and Iran met in Tunis, Tunisia, for an interacademy workshop on water resources management, conservation, and recycling. This was the fourth interacademy workshop on a variety of topics held in 2002, the first year of such workshops. Tunis was selected as the location for the workshop because the Tunisian experience in addressing water conservation issues was of interest to the participants from both the United States and Iran. This report includes the agenda for the workshop, all of the papers that were presented, and the list of site visits.

Author: Claudia C. Faunt
Publisher: Geological Survey
ISBN: 9781411325159
Category : Nature
Languages : en
Pages : 0

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Author: Ivan Francisco Garcia Tejero
Publisher: Academic Press
ISBN: 0128131659
Category : Science
Languages : en
Pages : 586

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Water Scarcity and Sustainable Agriculture in Semiarid Environment: Tools, Strategies and Challenges for Woody Crops explores the complex relationship between water scarcity and climate change, agricultural water-use efficiency, crop-water stress management and modeling water scarcity in woody crops. Understanding these cause- and effect relationships and identifying the most appropriate responses are critical for sustainable crop production. The book focuses on Mediterranean environments to explain how to determine the most appropriate strategy and implement an effective plan; however, core concepts are translational to other regions. Informative for those working in agricultural water management, irrigation and drainage, crop physiology and sustainable agriculture. - Focuses on semi-arid crops including olive, vine, citrus, almonds, peach, nectarine, plum, subtropical fruits and others - Explores crop physiological responses to drought at plant, cellular and/or molecular levels - Presents tool options for assessing crop-water status and irrigation scheduling

Author: M. Ramon Llamas
Publisher: CRC Press
ISBN: 9789058093905
Category : Business & Economics
Languages : en
Pages : 498

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This text is written by a number of authors from different countries and disciplines, affording the reader an invaluable and unbiased perspective on the subject of intensive groundwater development. Based on information gathered from the experience of many countries over the last decades, the text aims to present a clear discussion on the conventional hydrogeological aspects of intensive groundwater use, along with the ecological, legal, institutional, economic and social challenges. Divided into two main sections, the first group of authors put forward the positive and negative aspects of intensive groundwater use, whilst a second group provide an overview of the situation specific countries face as a consequence of this phenomenon. Fully revised and up-to-date, Groundwater Intensive Use makes a significant number of discoveries in a subject area that is topical in today's climate.

Author: International Irrigation Management Institute
Publisher: IWMI
ISBN: 9290901446
Category : Farm management
Languages : en
Pages : 302

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Financial and human resources : irrigation investment trends in Sri Lanka, implication for policy and research in irrigation management;organizational dynamics in a corporate-type irrigation organization, and analysis of the national irrigation administration in the Philippines;system turnover to farmers in the Philippines;management training through special awards;reinforcing management at system level: a comparativestudy of farmer-managed systems in northern Pakistan;irrigation management for crop diversication;studies on rice-based irrigation systems management in Bangladesh;emerging issues and trends:issues in conjunctive management of groundwater and surface irrigation systems in Punjab, Pakistan, an initial assessment;salinity in Punjab watercourse commands and irrigation systems operations;application of mathematicalmodels for simulation of canal operations at Kirindi Oya, Sri Lanka, preliminary results;towards better performance:performance of new irrigation settlement schemes, a case study of kirindi Oya, Sri Lanka;performance of secondary canals in Pakistan Punjab, research on equity andvariability at the distributary level.

Author: M.G. Bos
Publisher: Springer Science & Business Media
ISBN: 9400917708
Category : Technology & Engineering
Languages : en
Pages : 238

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The irrigated area in the Aral Sea basin totals about 7. 5 million hectare. Part of the water supplied to this area is consumed by the irrigated crop; the remainder of the supplied water drains to the groundwater basin, to downstream depressions, or back to the rivers. During its use, however, this drained part of the water accumulates salts and chemicals. The disposal of this polluted water causes a variety of (environmental) problems. If the percentage consumed water of the total water supply to an irrigated area (the so-called overall consumed ratio) can be increased, less water needs to be drained. This alleviates part of the related (environmental) problems. Further, if the overall consumed ratio for the above 7. 5 million hectare is improved, less water needs to be diverted from the rivers. Hence, more water can flow towards the Aral Sea. As mentioned above, part of the non-consumed irrigation water drains to the groundwater basin. Commonly, the natural discharge capacity of this basin is insufficient to handle this imported water. As a result, the groundwater table rises towards the land surface causing waterlogging. In (semi-)arid zones this waterlogging triggers a soil salinity problem resulting to a significant reduction in crop yields. The artificial increase of the discharge capacity, and lowering of the groundwater table, solves the soil salinity problem.

Author: Walter Dragoni
Publisher: Geological Society of London
ISBN: 9781862392359
Category : Business & Economics
Languages : en
Pages : 200

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Book Description
There is a general consensus that for the next few decades at least, the Earth will continue its warming. This will inevitably bring about serious environmental problems. For human society, the most severe will be those related to alterations of the hydrological cycle, which is already heavily influenced by human activities. Climate change will directly affect groundwater recharge, groundwater quality and the freshwater-seawater interface. The variations of groundwater storage inevitably entail a variety of geomorphological and engineering effects. In the areas where water resources are likely to diminish, groundwater will be one of the main solutions to prevent drought. In spite of its paramount importance, the issue of 'Climate Change and Groundwater' has been neglected. This volume presents some of the current understanding of the topic.

Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251376425
Category : Business & Economics
Languages : en
Pages : 122

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Book Description
This evaluation assessed the extent to which FAO’s work has been relevant and effective in supporting its Members to achieve Sustainable Development Goal 6 (SDG 6). Water resources management is central to any consideration of agricultural production, ecosystems sustainability, rural livelihoods and climate change adaptation and resilience, issues that lie at the heart of FAO’s mandate. The evaluation found that FAO has a comparative advantage in several key SDG 6 target areas and addressed needs and demands from Members in all SDG 6 target areas. Irrigated agriculture (target 6.4) represents an area of high demand from Members and a dominant theme in the reviewed case studies. Regional initiatives are effective in addressing specific needs and challenges of individual regions. FAO has performed well in its custodial role for SDG indicators 6.4.1 and 6.4.2. However, overall FAO’s strategic approach to water-related activities remains. The links between agriculture and water quality and pollution (target 6.3) were not adequately addressed. Despite limited evidence on full transformational changes, the evaluation highlights several activities and approaches that, if nurtured, could form the basis for transformational change.