Get Drought in Arid and Semi-Arid Regions: A Multi-Disciplinary PDF

By Kurt Schwabe, Jose Albiac, Jeffery D. Connor, Rashid M. Hassan, Liliana Meza González

ISBN-10: 9400766351

ISBN-13: 9789400766358

ISBN-10: 940076636X

ISBN-13: 9789400766365

Offering a cross-country exam and comparability of drought know-how and adventure, this publication exhibits how scientists, water managers, and coverage makers process drought and water shortage in arid and semi-arid areas of Spain, Mexico, Australia, South Africa and the United States.

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Extra info for Drought in Arid and Semi-Arid Regions: A Multi-Disciplinary and Cross-Country Perspective

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Depending on the outcome from rainfall and the projected water supply, spring and summer cropping can be developed. The salt tolerance of the crop will also be a factor in the crop selection. Many of the vegetable crops are salt sensitive and require good-quality (low-salinity) water for germination and growth. Field crops may be more salt tolerant than vegetable crops but have longer growing seasons and higher water demands. If both goodand poor-quality water are available, cropping pattern and irrigation management can be developed to incorporate both supplies (Rhoades 1989; Rhoades et al.

Hutmacher discusses experiences with using deficit irrigation on both annual crops and perennial crops, yet emphasizes that there is sparse information on the effects of deficit irrigation on crop production and quality if practiced over many years. Understanding the impacts of deficit irrigation on crop productivity and quality is just one piece of the puzzle, though, as other issues are important, including (1) designing irrigation scheduling to match the temporal sensitivities of the plant while controlling for other factors, (2) considering the physical and chemical properties of soils and how they may respond to deficit irrigation over time, and (3) how to monitor all these factors so growers can make timely decisions based on the characteristics of the plant, soil, climate, and market conditions.

Reconsideration of water management practices is a regular process in Spain because of the large temporal variation of resources with frequent drought episodes. The chapter highlights and discusses the key requirements for good 1 Introduction 17 operational water management: suitable institutions, planning at basin level, updated and accurate information and knowledge on hydrological processes, coresponsibility by all stakeholders in decision making, and general public participation. Chapter 4 and 6 focus on irrigation sector adapatation to drought.

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Drought in Arid and Semi-Arid Regions: A Multi-Disciplinary and Cross-Country Perspective by Kurt Schwabe, Jose Albiac, Jeffery D. Connor, Rashid M. Hassan, Liliana Meza González

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