Stem expands to fill with water, shallow roots absorb water from storms, corrigated stem reduces wind current = less evap loss
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What is the second plant?
Palo Verde
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One random characteristic
Grows on upper slopes
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Name 1 way its adapted to arid environments
Losses leaves in dry season to conserve water yet has green bark to carry out photosynthesis
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What is a phreatophyte?
Arid plants which have root systems used to tap into underground water supplies
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Example of phreatophyte + adaptation
Mesquite bush grows near rivers
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What is a halophyte?
Plant which grows in saline conditions
11 of 15
Example of halophyte
Pickleweed
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3 soil characteristics
Thin, alkaline, rainfall leaches soluble salt through soil (returning later due to heat)
13 of 15
Name 2 physical disturbances in the area
1. Overgrazing of cattle which trample compacted soils 2. Cold winters cause frost sensitivity
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Name 2 Human disturbances in the area
1. Expansion of urban areas such a Phoenix increases demand for water = water abstraction 2. Introduction of non-native plants causes competition for resources like water
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