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Water SA
versão On-line ISSN 1816-7950
versão impressa ISSN 0378-4738
Resumo
SEWARD, Paul; XU, Yongxin e TURTON, Anthony. Investigating a spatial approach to groundwater quantity management using radius of influence with a case study of South Africa. Water SA [online]. 2015, vol.41, n.1, pp.71-78. ISSN 1816-7950. http://dx.doi.org/10.4314/wsa.v41i1.10.
The purpose of this paper is to investigate whether a simple, spatially-based approach to groundwater sustainability using radius of influence should be used to replace the pervasive, yet deprecated, 'natural recharge water balance' volumetric method. Using South Africa as a case study, the radius of influence methodology was shown to be scientifically practical, to provide plausible results, and to be permissible under the country's water laws. The approach also provides better indicators for institutions involved in groundwater management, and remains conceptually correct at all scales. However, further research is recommended on more robust alternatives to the Cooper-Jacob equation for determining radius of influence.
Palavras-chave : groundwater; sustainability; spatial; water balance; indicators; institutions.
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