Drought impacts extend beyond the area physically affected by drought
and can linger after the event has ended. The table below summarizes major
drought impacts, direct and indirect, in South Africa for the years 198094.
Impacts and effects are categorized as social, environmental, or economic.
|
Impact
|
Ripple Effects |
|
Social
Impacts
|
| Lack or poor
distribution of resources (food and water) |
Migration, resettlement,
conflicts between water users |
| Increased quest
for water |
Increased conflicts
between water users |
| Marginal lands
become unsustainable |
Poverty, unemployment |
| Reduced grazing
quality and crop yields |
Overstocking;
Reduced quality of living |
| Employment layoffs |
Reduced or no
income |
| Food insecurity |
Malnutrition
and famine; Civil strife and conflict |
| Increased pollutant
concentrations |
Public health
risks |
| Inequitable
drought relief |
Social unrest,
distrust |
| Increased forest
and range fires |
Increased threat
to human and animal life |
| Urbanization |
Social pressure,
reduced safety |
|
Environmental
impacts
|
| Damage to natural
habitats |
Loss of biodiversity |
| Reduced forest,
crop, and range land productivity |
Reduced income
and food shortages |
| Reduced water
levels |
Lower accessibility
to water |
| Reduced cloud
cover |
Plant scorching |
| Increased daytime
temperature |
Increased fire
hazard |
| Increased evapotranspiration |
Crop withering
and dying |
| More dust and
sandstorms |
Increased soil
erosion; Increased air pollution |
| Decreased soil
productivity |
Desertification
and soil degradation (topsoil erosion) |
| Decreased water
resources |
Lack of feeding
and drinking water |
| Reduced water
quality |
More waterborne
diseases; Increased salt concentrations |
| Increased incidence
of animal diseases and mortality |
Loss of income
and food; Reduced breeding stock |
| Soil desiccation |
Increased soil
blowability |
| Degradation
of landscape quality |
Permanent loss
of biological productivity of the landscape |
| Species concentration
near water |
Increased vulnerability
to predation |
|
Economic
impacts
|
| Reduced business
with retailers |
Increased prices
for farming commodities |
| Food and energy
shortages |
Drastic price
increased; Expensive imports/substitutes |
| Loss of crops
for food and income |
Increased expense
of buying food from shops |
| Reduction of
livestock quality |
Sale of livestock
at reduced market price |
| Water scarcity |
Increased transport
costs |
| Loss of jobs,
income, and property |
Deepening poverty;
Increased unemployment |
| Less income
from tourism and recreation |
Increased capital
shortfall |
| Forced financial
loans |
Increased debt;
Increased credit risk for financial institutions |