A region on Earth’s surface with physical features, such as hills, valleys, and streams. The...

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A region on Earth’s surface with physical features, such as hills, valleys, and streams. The shape (topography) and composition of the landscape is determined by the climate, bedrock, geologic structures, and human activities. Topographic relief is the change in elevation between the highest and the lowest places. Landscapes

Transcript of A region on Earth’s surface with physical features, such as hills, valleys, and streams. The...

Page 1: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

A region on Earth’s surface with physical features, such as hills, valleys, and streams.

The shape (topography) and composition of the landscape is determined by the climate, bedrock, geologic structures, and human activities.

Topographic relief is the change in elevation between the highest and the lowest places.

Landscapes

Page 2: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Mountain landscapes have the greatest relief between the highest peaks and the deepest valleys.

A great variety of rock types are common. Mountains are common where converging

tectonic plates collide. Stream gradients are

high, and the fast moving streams quickly erode deep valleys between the mountain peaks.

Landscape Regions

Page 3: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Plateau landscapes are relatively flat or rolling uplands where streams have cut deep valleys.

Commonly underlain by flat layers of sedimentary rock.

Less topographic relief than mountains but more relief than the plains.

Landscape Regions

Page 4: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Plains have the least topographic relief. They may contain a few small hills, but are

generally flat and at low elevation. Commonly underlain by flat layers of

sedimentary rock.

Landscape Regions

Page 5: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Moist, Humid climates usually have rounded landscapes.

Slopes are not as steep because moist climates promote a protective cover of vegetation.◦ Plants cover protects the soil

from rapid runoff and erosion.

Climate Influence on Regions

Page 6: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Arid (dry) climates usually produce thin soils with little humus.

With little plant cover to protect the soil, sediment is carried away during rainfall.◦ Large areas of exposed bedrock and steep rock

faces are the result.

Climate Influence on Regions

Page 7: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Landscape Regions of the US

Page 8: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Landscape Regions of NY

Page 9: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Harder rocks will form hills and ridges. Erosion of the weaker rock will make the

major valleys.◦ Streams will tend to follow zones of weaker rock

and flow downhill.

Drainage Patterns

Page 10: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Drainage Patterns

Page 11: A region on Earth’s surface with physical features, such as hills, valleys, and streams.  The shape (topography) and composition of the landscape is.

Farming and construction projects can accelerate erosion and effect landscape development.

Farmers and engineers must be guided in planning their projects by appropriate conservation practices.

Human Activities Can Affect Landscapes