Case Study - The Sahel Desert

Question 1

Tree planting

Answer 1

Removing unnecessary breaches so trees can grow
Wood = fuel + money
Plant acacia trees - hardy plant , copes in environment, binds soil, acacia gum= money

Question 2

Water management

Answer 2

Stone lines= water trapped behind stones + plants grow,

Water is not wasted

Question 3

Soil management

Answer 3

Leaving crops to rest between grazing , crop rotation , adding compost to increase nutrients

Question 4

Appropriate tech must be..

Answer 4

Cheap and easy for locals to maintain

Question 5

(Desertification) population growth

Answer 5

Pressure on land = deforestation (fuel) = increase in over grazing + over cultivation

Question 6

(Desertification) climate change

Answer 6

Decrease in rainfall= decrease in plant growth = erodes soil easily

Question 7

(Desertification) increase in temp

Answer 7

Evaporating water = dry soil = plants die

Question 8

(Desertification) human activities

Answer 8

Removal of fuel woods = soil erodes

Question 9

(Desertification) overgrazing

Answer 9

Too many cattle = soil erosion

Question 10

(Desertification)over cultivation

Answer 10

Crops planted in same area v nutrients used upon= soil erosion