The reserve lies at the confluence of the arid and semi-arid zones.

Arid and semi-arid zones of the low rainfall interior.

Priority was given to the development of new irrigated areas in arid and semi-arid zones.

The surrounding region is part of the semi-arid pastoral zone used mainly for grazing cattle and sheep.

Ecologically, it is in the transition between tropical and semi-arid zones.

A desert specialist, it is found in the arid and semi-arid zones of the northern half of the continent.

The wetland is in the semi-arid zone and receives an average annual rainfall of about 620 mm.

In semi-arid and arid zones, profile differentiation is either weak or does not exist.

During the next term of Parliament, someone will be presenting a detailed report on arid and semi-arid zones, a subject already dealt with many years ago.

Here in the semi-arid (desert) zone the constant sun ripens the fruit quickly to the proper sugar buildup.