1. 2. 3.

Desert Ecosystem Concept Map Cacti Acacia Tree Aloe Plant Shallow roots Tap roots Succulent Spines Thin soil 45°C + during the day Less than 250 mm of rain Soil infertile Aquifer (underground water stores) 12 hours of sun 0°C during the night Fennec Fox Camel Snake Hadley Cell Sahara Desert 15 and 35° north and south of the equator Low population density Inaccessible Politically unstable Lack of fresh water Poor infrastructure Mineral resources e.g. phosphate Solar Energy Tourism Farming Energy resources e.g. oil

Make links between key terms Succulents Cactus Less than 250 mm of rain Low population density Shallow roots Lack of fresh water Poor infrastructure

Low population density Explain the links Succulent is a As rainfall is unreliable And it needs to store water For when there is drought as there is As there are few people governments do not invest in the area leading to a Cactus Less than 250 mm of rain Low population density means there is a has leading to Shallow roots To absorb as much water from the surface as possible as there is Lack of fresh water Poor infrastructure