{"product_id":"effects-of-traditional-water-allocation-on-environmental-flows-upstream-downstream-issues-agriculture-vs-environment-von-mavuto-chintengo-cosmo-ngongondo-michael-tumbare","title":"Effects of traditional water allocation on environmental flows","description":"\u003cp\u003eThe 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 to sensitive species) and the range of 9¿13% of MAR for class. In addition, the area experienced a 65% reduction in forest cover from 1992 to 2008 which resulted in increased high flow index by 16%.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783659346552\"\u003e\u003ch3\u003eUpstream, downstream issues, agriculture vs environment\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9783659346552","offer_id":39449004376157,"sku":"9783659346552","price":54.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/81e7edff-a32d-477c-a8c1-8ad42cce2cf8.jpg?v=1776403812","url":"https:\/\/shop.autorenwelt.de\/products\/effects-of-traditional-water-allocation-on-environmental-flows-upstream-downstream-issues-agriculture-vs-environment-von-mavuto-chintengo-cosmo-ngongondo-michael-tumbare","provider":"Autorenwelt Shop","version":"1.0","type":"link"}