Hodnett, M.G. and Bell, J.P.
(1981)
Soil physical processes of groundwater recharge through Indian black cotton soils.
Other.
Institute of Hydrology, Wallingford.
Abstract
Soil physical studies were carried out in the black cotton soil areas of the Betra Basin, Central India, to assess
their role in partitioning monsoon rainfall into runoff and gtoundwater recharge. The regional and anual variations of soil moisture were studied first, followed by studies of the soil water flow mechanisms at representative sites. Measurements of soil water content were made by neutron probe and soil water potential by porous pot tensiometer. Unsaturated conductivity characteristics were determined by the "instantaneous profile method" and monsoon recharge estimated by application of Darcy's Law. Dry season recharge
and evaporation were calculated by the zero flux plane method. The studies suggested that significant recharge is
possible only in the shallow soil areas, where structured clay/silts directly overlie the eathered basalt surface
aquifer
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