Columbia subject headings:
Arid regions--Africa.
Environmental policy--Africa.
Land use, Rural--Africa.
Pastoral systems--Environmental aspects--Africa.
Transhumance--Africa.
Harvard subject headings:
Arid regions--Africa.
Environmental policy--Africa
Land use, Rural--Africa.
Pastoral systems--Environmental aspects--Africa.
Princeton subject headings:
Arid regions agriculture--Africa.
Land use, Rural--Africa.
Transhumance--Africa.