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A semi-arid climate, semi-desert climate, or steppe climate is a dry climate sub-type. It is located on regions that receive precipitation below potential evapotranspiration, but not as low as a desert climate. There are different kinds of semi-arid climates, depending on variables such as temperature, and they give rise to different biomes.
The semi-arid regions of the world are mainly peripheral to the arid cores just described, but in some cases they appear as small areas surrounded by more humid regions.
For the specific regional distribution of arid and semiarid regions, some scholars divided the globe into nine arid and semi-arid regions, including North Africa, Southwest Asia, Middle...
Strict definitions of climatic regions vary according to the purpose for which they are made; plant ecology, faunal distribution, living conditions for humans and domesticated flocks impose different boundaries for the semiarid regions of the world.
The role of climate in influencing natural sources of water in hot arid and semi-arid environments. For aquifers to recharge, long steady periods of rain are more effective than short intense periods of rain. This allows the rainwater to infiltrate into the ground more effectively.
Many approaches have been used in defining climatic zones. The approach used may be influenced by the objectives of the analysis: whether the intent is to relate climate to the functioning of natural ecosystems, to agriculture, or to human activities. Download to read the full chapter text.
ARID AND SEMI-ARID GEOMORPHOLOGY. Based on four decades of research by Professor Andrew S. Goudie, this volume provides a state-of-the-art synthesis of our understanding of desert geomorphology. It presents a truly international perspective, with examples from all over the world.
