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Книга ISBN13 9783659346552 - Effects of traditional water allocation on environmental flows (Mavuto Chintengo,Cosmo Ngongondo and Michael Tumbare) в магазинах, библиотеках и электронных библиотеках с он-лайн чтением

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Название: Effects of traditional water allocation on environmental flows
The headwater catchments of the Rivirivi River basin play a vital role in meeting downstream water resources requirements. In recent years, the Rivirivi River has experienced significant changes in its hydrological regime, including an increased number of zero-flow days. This study was aimed at investigating the effect of traditional water allocation practices in the catchment on environmental flows. The results indicate that there was a considerable difference in average annual stream flow between two identified main periods (between 1963 to 1983 and 1984 to 2004) and zero flows increased from 5% to 12% The high flow index (Q5/Q50) increased by 16% between 1963 to 1983 and 1984 to 2004 whereas there is a dramatic reduction in the low flow index (Q95/Q50), with up to 100% reduction. Further, the ecosystems need approximately the range of 35–40% of the MAR to be maintained at class A (Class A is streamflows with negligible modification from natural conditions and have negligible risk...
Авторы: Mavuto Chintengo,Cosmo Ngongondo and Michael Tumbare
Издательство: LAP Lambert Academic Publishing
Год: 2013
Местонахождение: OZON.ru
ISBN: 9783659346552


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10 января 2015 года: Запуск базы ISBN10 и ISBN13

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