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Effects of selected dams on river flows of Insiza River, Zimbabwe

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Relation http://oar.icrisat.org/8080/
http://dx.doi.org/10.1016/j.pce.2006.08.022
 
Title Effects of selected dams on river flows of Insiza River, Zimbabwe
 
Creator Onema, J M K
Mazvimavi, D
Love, D
Mul, M L
 
Subject Watershed management
 
Description This paper examines effects of three dams on flow characteristics of Insiza River on which they are located. The storage capacities of these dams varies from an equivalent of 48–456% of the mean annual runoff. Mean annual runoff and annual maximum flood flows have not been modified by the presence of these dams. The average number of days per year without runoff had decreased downstream of two dams. A comparison was made of flow duration curves at sites upstream and downstream of the selected dams. Significant differences were detected between the flow duration curves of upstream and downstream sites. Exceedance frequencies of low flows had decreased downstream of two dams, while these had increased downstream of the other dam. The study recommends development of operating rules for these dams that will ensure that changes detected in low flows do not adversely affect instream flow requirements
 
Publisher Elsevier
 
Date 2006
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/8080/1/Physics%20and%20Chemistry%20of%20the%20Earth_31_15-16_870%E2%80%93875_2006.pdf
Onema, J M K and Mazvimavi, D and Love, D and Mul, M L (2006) Effects of selected dams on river flows of Insiza River, Zimbabwe. Physics and Chemistry of the Earth, Parts A/B/C, 31 (15-16). pp. 870-875. ISSN 1474-7065