QUIZ 6

Question 1

What causes Urban Stream Syndrome (USS)? Loss of _____, ______ & water supply leaks, and ______.

Answer 1

vegetation - sewage - imperviousness

Question 2

Symptoms of USS:

Water chemistry?

Channel morphology?

OM?

Fish/invertebrates

Hydrology

Answer 2

Increased nutrients, contaminants, temp.

Increased channel width
Altered stability

Reduced retention

Decrease in sensitive spp, increase in tolerant

Increased flashiness!!

Question 3

In order to mitigate USS, we need to shift our perception of urban areas as __(2)__.

Answer 3

ecological systems

Question 4

WS-scale changes to mitigate USS: reduce ______ & storm water drainage ______, stream ______ to maximize _____ services like nutrient uptake, habitat, etc.

Answer 4

imperviousness - connections (pipes) - restoration - ecosystem

Question 5

Hydrologic modifications for agriculture include d____ and i____. With these and other mods, nutrients/sediment/pesticides move _____ to ______.

Answer 5

drainage & irrigation

rapidly - surface water/streams

Question 6

The 4R’s = right s_____, right r____, right t_____, & right p_____.

Answer 6

source - rate - time - place

Question 7

How can we keep water ON the field?

Answer 7

reduce water flow (drip vs sprinkler/flood irrigation)

cover crops & native prairie strips