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geography - Coggle Diagram
geography
the living world
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logging, agriculture, mineral extraction, tourism, energy development and road building.
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desertification
characteristics: heat, rocky landscapes, exetremely dry
stratigies to reduce: water managment, tree planting, soil managment, technoligy
causes: climate change, relying on wood for fuel, over cultivation, over grazing, population growth
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rivers
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types of erosion
hydraulic action-This is the power of the water as it smashes against the river banks. Air becomes trapped in the cracks of the river bank and bed, and causes the rock to break apart.
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Attrition - When rocks that the river is carrying knock against each other. They break apart to become smaller and more rounded.
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Solution - When the water dissolves certain types of rocks, eg limestone
river profiles
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Upper course - in the upper course, where the river starts, there is often an upland area. The river's load is large in the upper course, as it hasn't been broken down by erosion yet
types of transport
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Solution - the transport of dissolved chemicals. This varies along the river depending on the presence of soluble rocks
Suspension - lighter sediment is suspended (carried) within the water, most commonly near the mouth of the river
Saltation - pebbles are bounced along the river bed, most commonly near the source
Traction - heavy pebbles are rolled along the river bed. This is most common near the source of a river.
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