Hot Desert Biome

Tom Cahill
Mind Map by Tom Cahill, updated more than 1 year ago
Tom Cahill
Created by Tom Cahill over 6 years ago
108
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Leaving Cert Geography (Geoecology) Mind Map on Hot Desert Biome, created by Tom Cahill on 01/12/2014.
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Resource summary

Hot Desert Biome
1 Climate
1.1 very dry
1.2 0mm - 250mm
1.3 Day: 45 Night:<0
1.4 anti-cyclones
1.5 convectional rainfall
1.6 flash floods
1.7 erodes deep gullies
1.8 evaporates before reaching ground
1.9 night dews
1.10 diurinal climate
2 Soil
2.1 aridsol soils
2.2 do not favour plant growth
2.2.1 rocky
2.3 lack of chemical weathering
2.3.1 rainfall
2.4 no horizons or OM
2.5 Salanation
2.5.1 poisonous to plants
2.6 calcification near surface
2.6.1 hard pan
2.7 rusty
2.7.1 sun burned
3 Vegetation
3.1 have to adapt
3.2 mesquite plant
3.2.1 taproots - 50m
3.3 Cacti
3.3.1 thin spines
3.3.1.1 transpires less
3.3.2 waxy seeds
3.3.2.1 hibernate
3.4 Paper Daisy
3.4.1 ephemeral
3.5 saguaro
3.5.1 grooves in stem
3.5.1.1 allows it to expand
3.5.2 thorns
3.5.2.1 still air
3.5.2.1.1 prevents wilting
4 Sahel
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