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Condition Level Variables

Condition Level Variables. Section 2.0. National Manual Version 1.61. Condition Class Number. Assign a unique number for each condition on the plot Plot Center is always condition 1. The rest of the conditions are numbered as they are encountered on the plot

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Condition Level Variables

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  1. Condition Level Variables Section 2.0 National Manual Version 1.61

  2. Condition Class Number • Assign a unique number for each condition on the plot • Plot Center is always condition 1 • The rest of the conditions are numbered as they are encountered on the plot • Regardless if the subplots are tallied out of order

  3. Land UseNew Coding System Record the classification that indicates the land use of the condition.

  4. Forest Land Use Codes 01 Accessible timber land (Site Class = 1-6) 02 Accessible other forest land (Site Class = 7) 03 Denied access forest land 04 Hazardous forest land SK = 2 only (not used in LA): 08 Lost subplot (timber land) 09 Lost subplot (other forest land)

  5. Agricultural Land Uses 10 Other agricultural land 11 Cropland 12 Pasture (improved) 13 Idle farmland New Agricultural Land Use Codes: 14 Orchard 15 Christmas tree plantation 16 Maintained wildlife openings

  6. Rangeland 20 Rangeland (natural)

  7. Developed Land UsesChanged 30 Other developed land 31 Cultural (business, residential, etc.) New Developed codes: 32 Right-of-way (road, railroad, utility line) 33 Recreation area 34 Mining

  8. Other Non-Forest Land Uses 40 Other non-forest (barren land, rock) 41 Non-census water 42 Marsh 43 Beach

  9. Non-Sampled Land Uses 91 Census water (not calculated into land base) 92 Denied access – land use not classified 93 Hazardous – land use not classified 94 Area not in sample (Mexico)

  10. Condition Status • First step in delineating conditions on the plot • Accessible forest land • Nonforest land • Noncensus water • Census water • Denied access area • Area too hazardous to visit • Area that is not in the sample • 9 Lost subplot/past condition data (SK = 2)

  11. NEW 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 & 3) • 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

  12. OLD 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

  13. Nonforest YearNew Item • Only record on a landcleared forest condition • Record the year that the forest land was converted to a non-forest condition

  14. Similar Identified Condition Class • Only recorded on SK = 2 • Not recorded in Louisiana

  15. Reserved StatusNew Item • 0 Not reserved • Reserved • Forest condition defining attribute • Coded separately from land use

  16. Owner GroupNew Item • US Forest Service • 20 Other Federal • 30 State and Local Government • 40 Private • Forest condition defining attribute

  17. Owner Class • Specific divisions within the Owner Group • Owner Class is NOT a condition defining attribute

  18. Owner Class CodesChanged US Forest Service Group 11 National Forest 12 National Grassland 13 Other Forest Service State and Local Gov’t Group 31 State 32 Local (County, City) 33 Other Non-Federal Public 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

  19. Private Owner Industrial StatusNew Item 0 Land is NOT owned by industrial owner with wood processing mill 1 Land IS owned by industrial owner with wood processing mill

  20. Total Acres and Percent Forest • Recorded only on NIPF land owners • Use acreage obtained when determining ownership information

  21. Stand Size • Condition defining attribute • 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

  22. Stand Size CodesChanged • Codes are 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 LA)

  23. Regeneration StatusChanged(formerly “Stand Origin”) • Condition defining attribute 0 Natural 1 Artificial

  24. Artificial Regeneration Species Record species code of artificially planted stands

  25. Tree DensityChanged • Last condition defining attribute • Only record change in density if it is 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

  26. Stand Age • Stand Age is linked to Stand Size Class • 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

  27. Stand Structure • Record the code that best describes the predominant canopy structure for the condition • As a rule, a canopy should comprise 25% of the stand • Single-storied • Two-storied • Multi-storied • Non-stocked

  28. Disturbance • 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

  29. Disturbance Codes • 00 None • 10 Insects • Disease • Crown and ground fire (either prescribed or natural) • Ground fire • Crown fire • Animal other than the following: • Beaver • Porcupine • Deer/ungulate • 45 Domestic animal/livestock (includes grazing)

  30. Disturbance Codes (cont.) • Weather other than the following: • Ice • Wind (includes hurricane, tornado) • Flooding (weather induced) • Drought • Vegetation (suppression, competition, vines) • Unknown/ not sure/ other (include a note) • 80 Human – Any significant threshold human-caused damage not described by other Disturbance or Treatment codes

  31. Disturbance YearNew Item • Record the year each disturbance occurred • Since last survey or within last 5 years on SK 1 plots • If the disturbance occurs continuously over time, record 9999

  32. Treatment • 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

  33. Treatment Codes • 00 None • Other cutting • Clearcut • Partial harvest • Seed-tree/shelterwood harvest (include final harvest of the seed trees; don’t record as clearcut) • Commercial thinning • TSI • Site preparation • 30 Artificial regeneration (no distinction between afforestation and reforestation) • Natural regeneration • 50 Other silvicultural treatment (fertilizers, herbicides, etc.)

  34. Treatment YearNew Item • Record the year each treatment occurred • Since last survey or within last 5 years on SK 1 plots

  35. Physiographic ClassCodes Changed Record the code that best represents the physiographic class of the condition based on land form, topographic position and soil • Xeric codes are grouped in the 10s • Mesic codes are grouped in the 20s • Hydric codes are grouped in the 30s • Dry mountain tops and slopes category is split into: • 11 Dry Tops • 12 Dry Slopes • Beaver and cypress ponds are broken out from the other hydric category: • 34 Beaver ponds • 35 Cypress ponds

  36. OperabilityCodes Changed • 0 No problems • Seasonal access • Mixed wet and dry • Broken terrain • Year-round water problems • Slopes of 20% or more

  37. Water SourceChanged • Not just permanent water • 0 None • Intermittent • Permanent stream/canal less than 30 feet wide • Permanent stream/canal 30-199 feet wide • Permanent stream/canal 200 feet wide or greater • Permanent swamp, bog, marsh less than 4.5 acres • Permanent swamp, bog, marsh 4.5 acres or more • Permanent lake/pond less than 4.5 acres • Permanent lake/pond 4.5 acres or more • Other permanent water (includes ocean) • Record the water source that has greatest impact

  38. 000 – 100 Distance to nearest foot (taped on site) 150 101 – 200 feet 250 201 – 300 feet * * * * * 950 901 – 1,000 feet 999 None within 1,000 feet Distance to Water Source • Water within 1000 feet from the lowest numbered subplot

  39. Site ClassChanged • 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

  40. Fire and Grazing Simple presence or absence on the condition

  41. Condition Level NotesNew Item Record any pertinent notes for each condition

  42. Questions?

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