On-Site Challenge: Water Harvesting Terms and Concepts
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Transcript of On-Site Challenge: Water Harvesting Terms and Concepts
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On-Site Challenge: Water Harvesting Terms and Concepts
Quiz 4(Use the terms & concepts list in the MESA Day Handbook along with the “Rainwater Harvesting for Drylands” resource book)
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This is a structure that decreases storm-water flow from a site by temporarily holding the runoff onsite. It is called a _________ or __________ basin.
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ANSWER: detention or retention basin
A large-scale retention basin that doubles as a recreation site when not holding water.
Water flowing into retention basin
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Hard-water is a characteristic of water in which it contains dissolved _________ and _________
Examples of hard-water mineral deposits on water fixtures.
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ANSWER: calcium and magnesium
Diagram shows how minerals make their way into our household water
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The pictures below are examples of a water-harvesting earthwork that is laid perpendicular to land slope & consists of an excavated basin and a raised berm located just downslope of the basin. What is it called?
___________ and ____________
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ANSWER: Berm and Basin
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Water containing little or no calcium or magnesium
is called ________
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ANSWER: Soft-water
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A landscaped level-bottomed, relatively shallow depression dug into the earth that collects,
infiltrates, and utilizes the rainfall, drainage from the area, and grey water is called an _________
________
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ANSWER: Infiltration basin
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The total area of a landscape draining or contributing water to a particular site or drainage is called a __________
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ANSWER: Watershed
WATERSHED MAP SHOWING MAJOR RIVER WATERSHEDS IN NEW MEXICO
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A gently sloping drainage-way that moves water slowly downslope across a landscape, while simultaneously allowing some of it to infiltrate into the soil is called a __________ _________
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ANSWER: Diversion swale
Water is slowly running across the landscape and seeping into the ground in this diversion swale
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When water completely fills the pore space in soil it is called ______ ______
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ANSWER: Saturated soil
UNSATURATED SOIL PARTICLES
SATURATED SOIL PARTICLES
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A modified system of boomerang berms connected directly to one another, concentrating harvested
runoff at multiple points in the landscape is called a
____ and ____ _______
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ANSWER: Net and pan system
A completed system looks like a “net” of berms draped over a hillside with “pans” or basins inside each segment of the net.
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The amount of rainwater falling onto a site and runoff flowing into a site, minus the amount of water lost to runoff is called the ______ _______ _________
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ANSWER: Onsite water budget
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The water that runs off a surface when more rain falls than the surface can absorb is called ________.
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ANSWER: Runoff