Survey Question |
Landscaped
Area: Shade trees |
A
landscaped area planted for shade and aesthetics usually consists of
ornamental tree varieties that grow quickly and have broad canopies. The surface material is assumed to be a
permeable layer of bark mulch but surfaces may be exposed soils. The
plantings in this example are assumed to relatively new. Older trees would begin to add more to the
stem areas and overall canopy cover. Landscaped areas like this are assumed
to be well maintained which results in little or no accumulation of leaf
litter or branches. If other materials are used the responses should be
adjusted accordingly (i.e. higher or lower planting density; exposed soils instead
of bark mulch; evergreens are more prominent than deciduous; etc.). All responses should be reviewed against
desired outcomes for a given project design. However, highlighted responses
below require answers specific to each map unit condition regardless of
design (e.g. soil conditions, slope, water regime, etc.) because these
conditions are unique to every map unit for this habitat type. |
Developed or Managed |
Considerations |
Habitat Type |
Developed or
Managed |
Assumes well established and maintained condition |
Which of the following best describes the map unit habitat type?
Select only one. |
Landscaped Area |
Assumes well established and maintained condition |
Which vegetation type is dominant within the map unit? Select
one. |
Sapling/pole
(1”-9” dbh) |
Assumes well established and maintained condition |
What is the average height of the dominant vegetation? |
7-16' |
Assumes well established and maintained condition |
What type of shrub or tree is dominant? |
Deciduous (broad
leaf) |
Assumes well established and maintained condition |
Non-woody, soft and green stems group |
Not
present/Negligible |
Assumes well established and maintained condition |
Shrub group |
Not
present/Negligible |
Assumes well established and maintained condition |
Tree group |
5-10% |
Assumes well established and maintained condition |
What is the TOTAL area of the map unit occupied by standing
stems and/or trunks of vegetation? |
5-10% |
Assumes well established and maintained condition |
Non-woody, soft and green stems group |
Not
present/Negligible |
Assumes well established and maintained condition |
Shrub Group |
Not
present/Negligible |
Assumes well established and maintained condition |
Tree Group |
30-60% |
Assumes well established and maintained condition |
What is the TOTAL aerial cover within the map unit? |
30-60% |
Assumes well established and maintained condition |
What is the total aerial cover along the map unit's edge? |
30-60% |
Assumes well established and maintained condition |
Emergent |
Not
present/Negligible |
Assumes well established and maintained condition |
Submergent |
Not
present/Negligible |
Assumes well established and maintained condition |
Floating mats |
Not
present/Negligible |
Assumes well established and maintained condition |
What is the total cover for all aquatic vegetation (emergent,
submergent and floating mat) within the map unit? |
Not
present/Negligible |
Assumes well established and maintained condition |
What is the dominant material exposed to the sun? |
Deciduous
vegetation |
Assumes well established and maintained condition |
What percent of the map unit's ground surface is covered by
fallen stems/branches that are less than 3 inches in diameter? |
Not
present/Negligible |
Assumes well established and maintained condition |
What is the average density of the stems/branches? |
Not
present/Negligible |
Assumes well established and maintained condition |
What percent of the map unit is covered by litter/duff? |
Not
present/Negligible |
Assumes well established and maintained condition |
What is the average thickness of the litter/duff layer? |
Not
present/Negligible |
Assumes well established and maintained condition |
What percent of the map unit's surface is exposed (not covered
by living or dead vegetation)? |
Not
present/Negligible |
Unique to every map unit |
Which type of natural or man-made materials is most dominant?
For aquatic habitats select the bed material. Select one. |
Manmade
pervious/porous surface |
Unique to every map unit |
Organic material |
Not
present/Negligible |
Unique to every map unit |
Clay (<0.002 dia.) |
Not
present/Negligible |
Unique to every map unit |
Silt (0.002 - 0.05 dia) |
Not
present/Negligible |
Unique to every map unit |
Sand (0.05 - 0.1) |
Not
present/Negligible |
Unique to every map unit |
Gravel (0.1 - 4 dia) |
Not
present/Negligible |
Unique to every map unit |
Cobble (4 - 10 dia) |
Not
present/Negligible |
Unique to every map unit |
Rocks (10 - 24 dia) |
Not
present/Negligible |
Unique to every map unit |
Boulders (>24 dia) |
Not
present/Negligible |
Unique to every map unit |
Bedrock |
Not
present/Negligible |
Unique to every map unit |
Man-made pervious/porous surface |
60-90% |
Unique to every map unit |
Man-made impervious surface |
Not
present/Negligible |
Unique to every map unit |
Unknown/Other |
Not
present/Negligible |
Unique to every map unit |
What percent of the map unit contains microtopography? |
Not
present/Negligible |
Unique to every map unit |
What percent of the map unit's area is made up of depressional
areas (areas greater than 6 inches in depth relative to surrounding surface)? |
Not
present/Negligible |
Assumes well established and maintained condition |
What is the slope (gradient) of the map unit? Select the
predominant slope where multiple slopes are present. |
<3% |
Unique to every map unit |
If <3% (1-2 degrees) is selected AND the map has flowing
water (i.e., stream or river), then select one of the following. If flowing
water is NOT present, select 1-2% (1-1.5 degrees). |
1-2% |
Unique to every map unit |
If there is a predominant slope, what is the longest length of
the map unit along the fall-line? |
50-100' |
Unique to every map unit |
How permeable is the soil? |
High (majority
sand and gravel) |
Unique to every map unit |
Does the map unit become saturated or inundated over the course
of a normal year? |
No |
Assumes well established and maintained condition |
If the map unit is saturated or inundated during the course of a
normal year, is the saturation or inundation occasional, seasonal, or
permanent? |
None |
Unique to every map unit |
If the map unit is saturated or inundated during the course of a
normal year, what percent of the map unit is affected by saturation or
inundation (this may be based on local knowledge of the site)? |
Not
present/Negligible |
Unique to every map unit |
If the map unit is saturated or inundated during the course of a
normal year, what is the salinity regime? |
None |
Unique to every map unit |
If the map unit is saturated or inundated during the course of a
normal year, what type of water motion is present? |
None |
Unique to every map unit |
What is the average bankfull width for the map unit? |
0 |
Does not typically apply to this habitat type |
What is the average bankfull height for the map unit? |
0 |
Does not typically apply to this habitat type |
What is the average Ordinary High Water (OHW) width for the map
unit? |
0 |
Does not typically apply to this habitat type |
What is the average height to Ordinary High Water (OHW) for the
map unit? |
0 |
Does not typically apply to this habitat type |
Is the map unit within a low, medium, or high sinuosity (degree
of curve or bend) system? |
NA |
Does not typically apply to this habitat type |
What is your level of certainty for the stream dimension
measurements? |
NA |
Does not typically apply to this habitat type |
What percent of the map unit contains open water that is free of
vegetation or other obstructions? |
Not
present/Negligible |
Does not typically apply to this habitat type |
When water is present, what is the predominant depth? |
Not present |
Does not typically apply to this habitat type |
What area of the map unit is made up of, or affected by, a seep
or spring? |
No seep or
spring present |
Does not typically apply to this habitat type |
Are surface sheens (iridescent or rainbow-like films) present? |
No |
Does not typically apply to this habitat type |
Are the surface sheens natural (from bacteria) or unknown? |
NA |
Does not typically apply to this habitat type |
Is the map unit adjacent to a developed area (industrial plant,
road, ag. field, etc.)? |
Yes |
Unique to every map unit |
Is the map unit adjacent to areas of permanent open water? |
No |
Unique to every map unit |
What direction is the center of the map unit from the adjacent
open water area? Select all that apply. |
NA |
Unique to every map unit |
What percent of the map unit shows evidence of any type of
recent manmade VEGETATION disturbance? |
10-30% |
Unique to every map unit |
What percent of the map unit shows evidence of manmade SOIL
disturbance? |
Not
present/Negligible |
Assumes well established and maintained condition |
Of the disturbed area, what percent of the soil disturbance is
due to compaction (from vehicle traffic, construction, agriculture, etc.)? |
Not
present/Negligible |
Assumes well established and maintained condition |
Of the disturbed area, what percent of the soil disturbance is
due to conventional tillage practices or comprised of over-turned (bladed)
soil? |
Not
present/Negligible |
Assumes well established and maintained condition |
What is the relative elevation of the map unit? That is, is it
higher or lower than surrounding map units? |
Higher and Lower |
Assumes well established and maintained condition |
On average, what is the height difference from surrounding map
units (difference from ground level)? |
< 7' |
Assumes well established and maintained condition |
What is the degree of screening provided by foliage within the
map unit? Assume that this is being estimated at a time when leaves are
present. |
Sparse |
Assume+L2:M72s well established and maintained condition |
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