Keyline® in the AR Sandbox #1: Contour Lines and Water Flow

The video tutorial explains the significance of understanding water lines, contours, divides, and drainages in landscapes. It highlights the work of PA Yeomans and the Key Line design system, emphasizing how land shape affects water movement, soil distribution, and ecosystem layering. The tutorial covers contour lines, ridges as water divide lines, and drainage patterns, illustrating how these elements influence water flow and landscape design. It also addresses exceptions in typical patterns, such as those found in glacial or coastal regions.

Who is the inventor of the Key Line design system?

• Bill Mollison

• Geoff Lawton

• David Holmgren

• Percival Alfred Yeomans

What do contour lines represent in a landscape?

• The direction of wind flow

• The type of vegetation

• A level line of elevation

• The soil composition

What are ridges in the context of water lines?

• Areas where water accumulates

• Water divide lines

• Flat areas in a landscape

• Low-lying regions

How do contour lines behave on a ridge?

• They form a zigzag pattern

• They bulge outwards

• They are evenly spaced

• They form a straight line

What is the pattern of water drainage lines?

• Circular

• Random

• Linear

• Branching like a tree

What happens to contour lines on steep slopes?

• They disappear

• They form circles

• They are farther apart

• They are closer together

What is a watershed?

• A type of plant

• A type of soil

• A drainage basin

• A weather pattern

What is a common feature of flood plains?

• Steep slopes

• Sparse vegetation

• High elevation

• Deep soils

What is an exception to typical watershed patterns?

• Deserts

• Coastal areas

• Flat plains

• Mountain ranges

What is the significance of identifying water lines in a landscape?

• To understand water flow

• To determine soil type

• To identify plant species

• To measure wind speed