IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 5 - FLUVIAL HYDRAULICS AND RIVER MANAGEMENT : Evaluation of Different Alternatives for the Management of a Semiarid Basin in the Northeast of Braz...
Evaluation of Different Alternatives for the Management of a Semiarid Basin in the Northeast of Brazil
Author : Vajapeyam Srirangachar Srinivasan, Jos‚ GuimarĈes Carvalho Neto and Iana Alexandra Alves Rufino
Hydrologic models are efficient tools that can be used in the simulation of alternative scenarios to help in the decision making processes of water resources planning. The proper management of semiarid basins in the northeast of Brazil requires some basic knowledge about the basin response in terms of the runoff generated and the associated sediment production due to the erosion processes. The present paper deals with the application of the model SWAT- Soil and Water Assessment Tool- to simulate a basin located in the semiarid region of the State of Paraiba in the northeast of Brazil. The model was initially calibrated for runoff in one of the sub-basins and verified in another. Six different alternatives of basin management including the present conditions of use were simulated using the calibrated model. The alternatives considered were: the existing situation of the basin with and without the reservoirs; native vegetation cover, reforestation with ?Algaroba? tree; corn cultivation; and, total deforestation to bare soil. The results show that reforestation with ?Algaroba? is the best conservation alternative against soil erosion and the cultivation of corn is only better than totally cleared land surface.
File Size : 499,810 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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