Water Scarcity Case Study

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Several investigations have reported that around 700 million people in 43 countries suffer today from water scarcity. By 2025, 1.8 billion people will be living in countries or regions with complete water scarcity and two-third of the world`s population will be living in areas of high water stress by 2030, including between 75 million and 250 million people in Africa. Moreover, water scarcity in some arid and semi-arid place will shift between 24 million and 700 million. Sub-Saharan African has the biggest number of water stressed countries of any region (UNDEE 2013). South Africa is 39th driest country in the world. Several studies have observed that the proneness of maize to water deficit is generally attributed to the separation of its male and female flowers ( Haung et al., 2006., Cairn et al., 2012)while Ogola et. al., (2002) reported that it is due to relative scarce structure of root system. FAO (2010) refers to maize as an efficient user of water in terms of total dry matter production and among cereals. It is potentially the highest yielding grain crop. South Africa Information, (2011) explained that current varieties of maize in South Africa require 450-600 mm of water per season, which is mainly obtained from soil moisture reserves. At maturity, each maize plant will have consumed 250 litres of water. …show more content…
al., 2007, Marta et. al., 2011). Adamtey et. al., (2010) referred to water use efficiency as the yield of plant product (grain, silage, forage, tuber or other product of concern) produced per unit of water. Several studies have discovered that water use efficiency in maize, sunflower, and wheat also called the ratio “the commercial yield per biomass” varies significantly in response to water deficit.(Fueres and Soriano, 2007; Katerji et. al.,

Water Scarcity Research Paper

1 Introduction of Water Users Body develop idea PARAGRAPH 2 Introduction of Governance Syetms Body develop idea PARAGRAPH 3 Introduction of Resource Systems Body develop idea PARAGRAPH 4 Introduction of Resource Units CONCLUSIONS Summary of the idea of essay Suggestion The relative water scarcity is ironic situation in water abundant area. It is not about the absence of water. The situation like this happened in almost of in developing country. Water, especially springs water, is a common property…

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Essay on Topic 2

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