CWD Wetland Functions & Values 2

Question 1

The Wetland Rapid Assessment Procedure (WRAP) is primarily designed to:

Accepted Answer

Provide a rapid estimate of relative wetland functional capacity for planning purposes

Answer

WRAP provides a rapid, cost-effective method for estimating wetland functional capacity relative to a reference standard, making it useful for landscape-level planning and screening assessments.

Question 2

Phosphorus retention in wetland soils occurs primarily through which mechanism?

Accepted Answer

Adsorption and precipitation with iron, aluminum, and calcium compounds in sediments

Answer

Phosphorus is retained in wetland soils primarily through adsorption onto iron and aluminum oxides and precipitation with calcium, making soil chemistry the dominant long-term phosphorus sink.

Question 3

Which economic valuation method estimates wetland value by surveying what people are willing to pay to preserve a wetland's services?

Accepted Answer

Contingent valuation method

Answer

Contingent valuation uses structured surveys to elicit willingness-to-pay for wetland services, allowing economists to estimate non-market values for ecological goods that lack direct market prices.

Question 4

Tidal salt marshes and mangrove systems typically exhibit the highest net primary production among wetland types primarily because:

Accepted Answer

Regular tidal flushing delivers nutrient-rich water that promotes high plant growth rates

Answer

Tidal flushing continuously delivers dissolved nutrients and removes metabolic waste products, creating highly productive conditions that drive the exceptional primary production rates of coastal wetlands.

Question 5

Hydroperiod most directly affects wetland functional processes by controlling:

Accepted Answer

The duration and frequency of anaerobic soil conditions that drive biogeochemical cycling

Answer

Hydroperiod determines how long soils remain saturated and anaerobic, which controls the rates of denitrification, methanogenesis, phosphorus cycling, and other biogeochemical processes that define wetland function.

(CWD) Certified Wetland Delineator Practice Test

(CWD) Certified Wetland Delineator Practice Test

CWD Wetland Functions & Values 2