CEP Field Survey & Data Collection 3

Question 1

When collecting sediment cores from a lake for paleoecological analysis, the primary purpose is to:

Accepted Answer

Reconstruct historical environmental conditions using proxies

Answer

Sediment cores preserve pollen, diatoms, charcoal, and chemical proxies that allow reconstruction of past vegetation, climate, and disturbance history.

Question 2

A field crew is using a quadrat method to estimate plant species cover. What does a 25% cover estimate in a 1-m² quadrat indicate?

Accepted Answer

The species occupies 0.25 m² of the quadrat's ground surface

Answer

Cover estimates the proportion of the ground surface (or quadrat area) occupied by the vertical projection of a species' aerial parts.

Question 3

Which type of aerial photography is most useful for identifying surface drainage patterns and subtle topographic features in an environmental survey?

Accepted Answer

Stereoscopic black-and-white vertical photography

Answer

Stereo pairs of black-and-white vertical photos allow three-dimensional viewing that reveals subtle relief and drainage patterns better than single-image color photos.

Question 4

A field environmental planner observes soil with mottles showing strong brown and gray colors. This most likely indicates:

Accepted Answer

Periods of seasonal saturation and oxidation-reduction cycling

Answer

Mottles (redoximorphic features) of orange/brown iron oxidation and gray iron reduction indicate fluctuating water table and periodic anaerobic conditions.

Question 5

Which data collection approach is best suited for assessing cumulative noise impacts along a proposed highway corridor?

Accepted Answer

Long-term continuous noise monitoring at multiple representative receptors

Answer

Cumulative noise assessment requires Leq and Ldn metrics derived from continuous monitoring at representative sensitive receptors over extended periods.

(CEP) Certified Environmental Planner Practice Test

(CEP) Certified Environmental Planner Practice Test

CEP Field Survey & Data Collection 3