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2 cards from this section. Quick, good the night before a test.
What is a contour canal?
Think of the lines on a topographic map.
Which type of canal runs along a watershed?
What do you think a watershed collects?
What type of canal is aligned along the contour lines of the land?
Recall the definition of contour.
True or False: Valley canals do not require cross-drainage works.
Think about how water enters valleys.
Design a simple irrigation layout using different types of canal alignments for a hilly farm.
Think about the geography and the water needs of the crops.
Discuss how climate change impacts the effectiveness of valley canals under extreme weather conditions.
Consider both heavy rains and dry spells.
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