Estimation of groundwater recharge of shallow aquifer on humid environment in Yaounde, Cameroon using hybrid water-fluctuation and hydrochemistry methods
作者： A. Fouépé Takounjou , J. R. Ndam Ngoupayou , J. Riotte , G. E. Takem , G. Mafany
DOI: 10.1007/S12665-010-0822-X
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摘要: A study of environmental chloride and groundwater balance has been carried out in order to estimate their relative value for measuring average recharge under a humid climatic environment with relatively shallow water table. The hybrid fluctuation method allowed the split hydrologic year into two seasons (wet season) no (dry appraise specific yield during dry season and, second, from table rise wet season. This well elaborated suitable then used as standard assess effectiveness forest environment. Effective 0.08 was obtained area. It reflects an effective basin-wide process is insensitive local heterogeneities aquifer system. gives 87.14 mm/year at basin scale, which represents 5.7% annual rainfall. Recharge estimated based on varies between 16.24 236.95 108.45 mm/year. 7% mean precipitation. discrepancy observed by mass methods appears be very important, could imply ineffectiveness this present
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