GROUNDWATER HARVEST POTENTIAL OF THE REPUBLIC OF SOUTH AFRICA
The first attempt to provide quantitive information on sustainable
rates of groundwater abstraction in South Africa on a country-wide
basis.
Prepared by the Directorate: Geohydrology, Department of
Water Affairs and Forestry.
The single A0 MAP SHEET COMPRISES:
MAIN MAP
The maximum volume of groundwater that
may be abstracted per square kilometer per annum without depleting the
aquifers. Harvest Potential was determined from groundwater recharge
and groundwater storage. (Scale 1 : 3 000 000)
3 INSET MAPS
- Factors restricting Available Harvest: (Average annual recharge, variability of recharge, or volume of
effective storage) (Scale 1 : 8 500 000)
- Mean
Borehole Yields (Scale 1 : 8 500 000)
- Electrical
Conductivity (Scale 1 : 8 500 000)
TEXT
A concise account of the determination of
Harvest Potential, the applicability of the map, and a comparison of
Harvest Potential with Exploitation Potential.
PLEASE NOTE
Harvest Potential gives the
maximum rate at which groundwater can be
sustainably abstracted. Local socio-economic or environmental factors
could reduce this considerably. This map is intended to provide a
national overview and perspective on sustainable abstraction. It cannot be
used for local planning, development or management of groundwater. Such
exercises require local investigations and assessments.
PRICE
R30.00 per map
(VAT, postage and packing
included)
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Copies of the map are obtainable
from:
Ms. M. van Wyk
Department of Water Affairs and
Forestry
Directorate: Geohydrology
Private Bag
X313
Pretoria
0001
Tel: (012) 338 7849
E-mail:
Margaret van
Wyk |
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