Implications Of Rainwater Harvesting In A
River Basin Management: Evidence From
The Modder River Basin, South Africa
Author(s)
Y. E. Woyessa, E. Pretorius, P. S. van Heerden, M. Hensley
& L. D. van Rensburg
Abstract
In a new paradigm shift related to integrated water resources management in the
context of a river basin, attention is being drawn to consider the upstream and
downstream impacts on the various water use entities. The river basin is
increasingly acknowledged as the appropriate unit for analysis and management
of water resources, especially as water availability becomes the primary
constraint to agriculture. The irrigated agriculture in the Modder river basin, in
the central South Africa, draws water from river pools and weirs. However,
many small-scale farmers rely on rain-fed farming. A few years ago, the
ISCW-ARC introduced a rainwater harvesting technique for these farmers,
which is reported to have increased crop yield significantly compared to
conventional practices. The research questions were: what is the potential
expansion of this technique? and; what will be the implications of this practice
on the downstream users if applied on a wider scale? A field survey showed that
a fairly rapid spread of the application of the technique can be expected within
the scope of home yard size, but no significant spread to community gardens and
beyond is expected in the short term because of socio-economic constraints such
as poverty, and lack of appropriate tools and basic farming skills.
Keywords: rainwater harvesting, river basin, small-scale farmers.
Keywords
rainwater harvesting, river basin, small-scale farmers.
Related Book
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