Arid Lands: A Geographical Appraisal

Acacia adaptation Africa agricultural alluvial alluvial fan animals annual arid and semi-arid arid areas arid lands arid regions arid zone Arid Zone Research artesian Artesian Basin arthropods Australia barchans basin Bedouin breeding Bushmen camels cattle cent changes Chapter clay climate communities countries crop cultivation cultural depth desert drainage dunes East ecological economic effects environment ephemerals erosion evaporation evapotranspiration example factors farmers farming fodder forest goats grassland grazing groundwater habitat heat herds humid important improvement increase irrigation land-use landforms layer limited livestock lizards maize metres moisture natural Negev nomadic oases Pakistan Palmatogecko Paris pasture perennial Photo plant growth population possible precipitation problems production qanat rain rainfall range relation river rocks Sahara saline salt sand season sedentary semi-arid semi-arid lands sheep soil South Southern Rhodesia species stream Sudan surface temperature tion types Unesco valley vegetation weathering wind winter