Drought
- Created by: Sumtimesadness
- Created on: 16-03-14 14:40
Causes of drought
low level of precipation means fall in ground water aquifer
High demand when demand exceeds supplu
soil degration - reduces soil ability to hold water
vegation dies
water run off
less infiltration so soil more dry therefore exposed to wind/ water eroision
Desertification- spread of desert like conditions
Drought lefs to famine, malnutrion- vulnerablity greater in LEDCs and sahel countries
In photosynthesis plants release water called transpiration
Evapouration - water is evapoured Evapotranspiration
ITCZ - bigger thunderstorms= more rainfall locally - prolonged rainfall is a good thing
Food Security - have access to food
Normadic = more around to follow rains
Substeince = provide enough to survive no surplus
Global distrubtion of Drought risk
Medittrean sea
Mexico
Central USA
Sub-suharan Africa- causes the…
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