Wetlands

Question 1

Wetlands must have the following three attributes:

Answer 1

1) at least periodically, the land supports predominantly hydrophytes.
2) the substrate is predominantly hydrocarbon soil.
3) the substrate is saturated with water or covered by shallow water at some time during the growing season of each year.

Question 2

Two general approaches for wetland classification:

Answer 2

Geographically based systems (broad based mapping similar to usda soil maps)

Site inventory environmental characteristics as found on the ground (watershed position, existing habitats, vegetation based approach)

Question 3

Wetland classification based on a sites geomorphic setting (topographical shape), dominant water source, and dominant hydrodynamics. It has since been further developed as a system for assessing wetland functions. (Used by army corps of engineers

Answer 3

Hydrogeomorphic classification (HGM)

Question 4

Name for artesenal wells, seeps, other places where ground water discharges to the surface but does not accumulate

Answer 4

Slip

Question 5

Based on vegetation associations, this habitat based classification system has become the federal standard for habitat-based classification.

Answer 5

The nature conservancy system

Question 6

Indication of past history of landslides

Answer 6

Colluvial soils

Question 7

Name four considerations for data collecting: when doing site analysis

Answer 7

Scale
Phase(conceptual, construction)
Accuracy (construction)
Temporal (trend mapping, historic evolution, growth projections)