Hall, A.E. / Cannell, G.H. / Lawton, H.W.

Agriculture in Semi-Arid Environments

The semi-arid zones of the world are fragile ecosystems which are being sub stantially modified by the activities of mankind. Increasing human populations have resulted in greater demands on semi-arid zones for providing human susten ance and the possibility that this may enhance desertification is a grave concern.

• Hall, A.E.
• 2012-12-06