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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 biome is dominated by grass and/or shrubs located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes. Tropical grasslands are mainly found between 5 degrees and 20 degrees in both North and south of the Equator. [2]
Interior scrublands occur naturally in semi-arid areas where soils are nutrient-poor, such as on the matas of Portugal, which are underlain by Cambrian and Silurian schists. Florida scrub is another example of interior scrublands. Dwarf shrubs Moorland on Kilimanjaro. Some vegetation types are formed of dwarf-shrubs: low
Xeric shrublands can experience woody plant encroachment, which is the thickening of bushes and shrubs at the expense of grasses. [5] This process is often caused by unsustainable land management practices, such as overgrazing and fire suppression, but can also be a consequence of climate change.
The term steppe climate denotes a semi-arid climate, which is encountered in regions too dry to support a forest, but not dry enough to be a desert. [2] [3] Steppes are usually characterized by a semi-arid or continental [citation needed] climate. Extremes can be recorded in the summer of up to 45 °C (115 °F) and in winter of down to −55 ...
Semi-arid Niger. A semi-arid desert or a steppe is a version of the arid desert with much more rainfall, vegetation and higher humidity. These regions feature a semi-arid climate and are less extreme than regular deserts. [34] Like arid deserts, temperatures can vary greatly in semi deserts.
Desert and semi-arid climates are defined by low precipitation in a region that does not fit the polar (EF or ET) criteria of no month with an average temperature greater than 10 °C (50 °F). The precipitation threshold in millimeters is determined by multiplying the average annual temperature in Celsius by 20, then adding:
The predominant vegetation in these biomes consists of grass and/or shrubs. The climate is temperate and ranges from semi-arid to semi-humid. The habitat type differs from tropical grasslands in the annual temperature regime and the types of species found here. [1]