condition level variables national manual version 1.55
TRANSCRIPT
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Condition Level VariablesCondition Level Variables
National Manual Version 1.55
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Condition Class NumberCondition Class Number• No change
• Plot Center is always condition 1
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Land Use Land Use •Land use codes have changed
•Census water is still 91
•Some new land uses
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Forest Land Use CodesForest Land Use Codes01 Accessible timber land
02 Accessible other forest land
03 Inaccessible/hazardous forest land
Deleted Forest Land Use Codes:
•Reserved timberland
•Reserved other forest land
•Separate item to record if land is reserved or not
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Agricultural Land UsesAgricultural Land Uses10 Other agricultural land
11 Cropland
12 Pasture (improved)
13 Idle farmland
14 Orchard
15 Christmas tree plantation
16 Maintained wildlife openings
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RangelandRangelandChanged to code 20
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Developed Land UsesDeveloped Land Uses30 Other developed land
31 Cultural (business, residential, etc.)
32 Right-of-way (road, railroad, utility line)
33 Recreation area
34 Mining
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Other Non-Forest Land UsesOther Non-Forest Land Uses40 Other non-forest (barren land, rock)
41 Non-census water
42 Marsh
43 Beach
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Non-Sampled Land UsesNon-Sampled Land Uses90 Other not sampled
91 Census water (not calculated into land base)
92 Denied access – land use not classfied
93 Hazardous – land use not classified
94 Area not in sample (Mexico)
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Condition StatusCondition StatusFirst step in delineating conditions on the plot
1 Accessible forest land2 Nonforest land3 Noncensus water4 Census water5 Denied access area6 Area too hazardous to visit7 Area that is not in the sample9 Lost subplot/past condition data
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NEW Past CodesNEW Past Codes• Land Use, Condition Status, Forest Type,
Regeneration Status
• Use current procedures to determine the past data as if you were applying the new rules at the time of the last survey (5 years ago for SK1)
• Previous crew notes, diagrams, and photos
• Best judgement: Only differ with old data if it is OBVIOUS that it would have been different if current procedures had been applied
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OLD Land UseOLD Land Use• Record the current code that best matches the
land use that the previous cruiser recorded
• Record the most detailed code available
• Example: Previously most developed land uses were one code – 67 Urban and other. Best match for a road under current system is 32, NOT Other developed – code 30
• Only change the code if it is OBVIOUS that the previous cruiser incorrectly applied past rules
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Nonforest YearNonforest Year• Only record on a landcleared forest condition• Record the year that the forest land was
converted to a non-forest condition
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Similar Identified Condition ClassSimilar Identified Condition ClassLong name, but it’s actually a shortcut….
• Some conditions delineated only because they are landcleared, reverted, or procedural change
• Some may be too small to otherwise qualify as a “regular” condition
• Record the Condition Class Number of the condition that these small, broken out conditions would otherwise be “lumped” into
• Don’t need to record most of the condition level variables if there is a link to a similar condition
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Similar Identified Condition ClassSimilar Identified Condition Class
• Some are large enough to stand on their own
• But are identical to another condition in every aspect except the Past Land Use
• Record the Condition Class Number of the identical condition
• Don’t need to record most of the condition level variables if there is a link to a similar condition
Long name, but it’s actually a shortcut….
• Some conditions delineated only because they are landcleared, reverted, or procedural change
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Reserved StatusReserved Status0 Not reserved
1 Reserved
• Forest condition defining attribute• No change in reserved land definition• Coded separately from land use
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Owner GroupOwner Group10 US Forest Service
20 Other Federal
30 State and Local Government
40 Private
• Forest condition defining attribute• Previously termed “Broad ownership category”• Forest Industry is no longer an owner group
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Owner ClassOwner Class• Specific divisions within the Owner Group• Owner Class is NOT a condition defining
attribute
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Owner Class CodesOwner Class CodesUS Forest Service Group
11 National Forest
12 National Grassland
13 Other Forest Service
Private Group
41 Corporate
42 Non-Gov’t Conservation/ Natural Resource Org
43 Unincorporated Partners/ Associations/ Clubs
44 Native American Reserve
45 Individual
Other Federal Land Group
21 National Park Service
22 Bureau of Land Mngmt
23 Fish and Wildlife Service
24 Dept of Defense/Energy
25 Other Federal
State and Local Gov’t Group
31 State
32 Local (County, City)
33 Other Non-Federal Public
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Private Owner Industrial StatusPrivate Owner Industrial Status• Separated from the old private owner class code:• Not a condition defining attribute
0 Land is NOT owned by industrial owner with wood processing mill
1 Land IS owned by industrial owner with wood processing mill
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Total Acres and Percent ForestTotal Acres and Percent ForestNo change: Still only record on NIPF land owners
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Stand SizeStand Size• Condition defining attribute• One major departure from previous manual:
• Conditions that are delineated based solely on Stand Size must be at least two size classes apart
• Two exceptions to this new rule:• If another condition defining attribute (forest type,
regeneration status, etc.) is used to delineate a separate condition, then consider Stand Size as an “ancillary” attribute: Record the specific size class of each condition, even if only one class apart
• Nonstocked forest (code 0) vs. stocked forest (codes 1-4) are always delineated
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Stand Size CodesStand Size Codes• Codes are now ordered from the small to large size
classes, and sawlog sizes are broken up:
0 Nonstocked
1 Up to 4.9 inches (seedlings/saplings)
2 5.0-8.9 softwoods/ 5.0-10.9 hardwoods (poles)
3 9.0-19.9 softwoods/ 11.0-19.9 hardwoods
4 20.0-39.9 inches
5 40.0+ inches
6 Cover trees (western TX/OK, ignore in AR, GA)
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Regeneration StatusRegeneration Status• Formerly called “Stand Origin”• Condition defining attribute
• Codes are simplified:
0 Natural
1 Artificial
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Artificial Regeneration SpeciesArtificial Regeneration SpeciesRecord species code of artificially planted stands
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Tree DensityTree Density• Last condition defining attribute• Still only record change in density if it’s the only reason to
delineate a condition• Code changes:
1 Initial density class
2 Density class 2 – density different than 1
3 Density class 3 – density different than 1 and 2
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Stand AgeStand Age• Stand Age is linked to Stand Size Class instead of Stand
Structure, but procedures are basically same
• Average age of trees in predominant Stand Size Class that are not overtopped
• When no single Stand Size Class is predominant, assign weights to the age of each size class
• If all of the trees in a condition class are not suitable to be bored for age, record 998
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Stand StructureStand StructureNo change
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DisturbanceDisturbance• Code up to three
• Most important to least important (use best judgement)
• Threshold: 25% of individual trees in condition
• Positive or negative effect
• Since last survey or within last 5 years on SK 1 plots
• Codes changed: 2 digits instead of 1 digit
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Disturbance CodesDisturbance Codes00 None
10 Insects
20 Disease
30 Crown and ground fire (either prescribed or natural)31 Ground fire32 Crown fire
40 Animal other than the following:41 Beaver42 Porcupine43 Deer/ungulate45 Domestic animal/livestock (includes grazing)
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Disturbance CodesDisturbance Codes50 Weather other than the following:51 Ice52 Wind (includes hurricane, tornado53 Flooding (weather induced)54 Drought
60 Vegetation (suppression, competition, vines)
70 Unknown/ not sure/ other (include a note)
80 Human – Any significant threshold human-caused damage not described by other Disturbance or Treatment codes
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Disturbance YearDisturbance Year• Record the continuously over time, record 9999
• Since last year each disturbance occurred
• If occurs survey or within last 5 years on SK 1 plots
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TreatmentTreatment• Code up to three
• Most important to least important (use best judgement)
• Since last survey or within last 5 years on SK 1 plots
• Codes changed
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Treatment CodesTreatment Codes00 None
10 Other cutting11 Clearcut12 Partial harvest13 Seed-tree/shelterwood harvest (include final harvest of
the seed trees; don’t record as clearcut)14 Commercial thinning15 TSI
20 Site preparation
30 Artificial regeneration (no distinction between afforestation and reforestation)
40 Natural regeneration
50 Other silvicultural treatment (fertilizers, herbicides, etc.)
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Treatment YearTreatment Year• Record the year each treatment occurred
• Since last survey or within last 5 years on SK 1 plots
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Physiographic ClassPhysiographic Class• New codes:
• Xeric codes are grouped in the 10s• Mesic codes are grouped in the 20s• Hydric codes are grouped in the 30s
• Definitions are the same except the following four new classes have been broken out:
• Dry mountain tops and slopes category is split into:11 Dry Tops12 Dry Slopes
• Beaver and cypress ponds are broken out from the other hydric category:
34 Beaver ponds35 Cypress ponds
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OperabilityOperability• No definitional change
• Codes changed:
0 No problems1 Seasonal access 2 Mixed wet and dry3 Broken terrain4 Year-round water problems5 Slopes of 20% or more
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Water SourceWater Source• Not just permanent water– new intermittent code added• Added swamps, bogs and marsh
0 None1 Intermittent2 Permanent stream/canal less than 30 feet wide3 Permanent stream/canal 30-199 feet wide4 Permanent stream/canal 200 feet wide or greater5 Permanent swamp, bog, marsh less than 4.5 acres6 Permanent swamp, bog, marsh 4.5 acres or more7 Permanent lake/pond less than 4.5 acres8 Permanent lake/pond 4.5 acres or more9 Other permanent water (includes ocean)
• Record the water source that has greatest impact
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Distance to Water SourceDistance to Water Source• Still water within 1000 feet
• No coding changes
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Site ClassSite Class• Subtle changes
• Still estimate Site Class of condition if no site trees are collected
• No required list of site tree species, only a “preferred” list
• Can record any tree species as a site tree if no preferred species are present
• Estimate Site Class if there is not a site class curve in Appendix 4 for the site tree species recorded on plot
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Fire and GrazingFire and Grazing• No changes
• Simple presence or absence on the condition
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Condition Level NotesCondition Level Notes
Record any pertinent notes for each condition
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Old Condition Level ItemsOld Condition Level ItemsTwo groups of items are no longer recorded at the condition
level:• Individual site tree information is recorded at the
Site Tree Level (Section 7.0)• Slope and Aspect are now recorded at the Subplot
Level (Section 4.0)
Dot count is gone:• No more subplot and microplot dots• No more 5 dot minimum on the subplot• All conditions on the plot are delineated,
regardless of area the condition occupies on the subplot
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The End!The End!