| A unit of Lasting Forests
evolving since March 30, 1999 |
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A Total Forest Management Plan
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The eastern deciduous forest biome, especially in Virginia, is said to be a chaotic mixture of tree species. As a result, it is very difficult to put an observed forest stand into a particular forest type. The overlaps are at least as conspicuous as the dominant trees. Previous use, harvests, and the incidence of fire have created a nearly infinite combination of ages and types. Field staff have had difficulty in assigning types and have had feelings of uncertainty about the stands that were assigned. For this reason a grouping of types has been made and new names assigned. The names and code numbers (except for 101-107) are identical to those used by the National Forests in the region. The following list (Table 1) contains the names for new types 101 to 107 developed by Department of Game and Inland Fishery based on recent field work and felt needs.
See also Type codes supplement.
In a Trevey report, a brief summary of the characteristics of each type present on the area will be presented.
The computer prepares several analyses by forest type. The possible uses:
| Code Number and Names of the Major Forest Types used within The Trevey |
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02 Red Pine 03 White Pine 04 White Pine-Hemlock Os Hemlock-Hardwood 07 White Pine-Yellow Poplar 08 White Pine-Chestnut Oak 11 Fraser Fir 13 Red Spruce-Fraser Fir 17 Red Spruce-Yellow Birch 21 Longleaf Pine 22 Slash Pine 31 Loblolly Pine 32 Shortleaf Pine 33 Virginia Pine 34 Sand Pine 35 Eastern Red Cedar 36 Pond Pine 37 Spruce Pine 39 Table Mountain Pine 41 White Pine-No. Red Oak-White Ash 42 E. Red Cedar-Hardwood-Pine 44 Shortleaf Pine-Oak 45 Va. Pine-So. Red Oak 46 Loblolly Pine-Hardwood 47 Va. Pine-Hardwood 48 Pitch Pine-Oak 50 Yellow Poplar 51 Post Oak-Black Oak 52 Chestnut Oak 53 White Oak-Red Oak-Hickory 54 White Oak 55 Northern Red Oak 56 Yellow Poplar-White Oak-Northern Red Oak 57 Southern Scrub Oak 58 Sweet Gum-Yellow Poplar 59 Scarlet Oak 61 Swamp Chestnut-Cherrybark Oak 62 Sweet Gum-Nuttall Oak-Willow Oak 63 Sugarberry-American Elm-Green Ash 64 Laurel Oak-Willow Oak 65 Overcup Oak-Water Hickory 66 Atlantic White Cedar 67 Bald Cypress-Water Hickory 68 Sweetbay-Swamp Tupelo-Red Maple 69 Beech-Magnolia 71 Black Ash-Am. Elm-Red Maple 72 River Birch-Sycamore-White Ash 73 Cottonwood 74 Willow 75 Sycamore-Pecan-American Elm 81 Sugar Maple-Beech-Yellow Birch see below 98 Undrained Flatwoods 99 Beech-Maple 100 Chestnut Oak-White Oak 101 Chestnut Oak-Pine 102 Scarlet Oak-Pine 103 No. Red Oak-Chestnut Oak 104 White Oak-Scarlet Oak 105 White Pine-Mixed Oak 106 Chestnut Oak-Poplar 107 Hickory-Oak |
| Codes and Names of Other Non-Tree-SpecificTract Types |
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84 Built-up; abundant houses/outbuildings/structures/parking lot 85 Permanent Road 86 Forest road with daylighted road zone 87 Agricultural Field (Annual Crop) 88 Agricultural Field (Perennial Corp) 89 Agricultural Field (Pasture or Grassy Wildlife Clearing) 90 Agricultural Field (Fallow Crop Field, Old Pasture, or Old Wildlife Clearing) 91 Pond or Lake 92 Stream 93 River 94 Marsh and Grassed Wetland, or Wooded Marsh 95 Cliffs, Tallus Slopes continued 98 Undrained Flatwoods |
| Sample of an individual forest stand type description and note that would appear in a typical Trevey report. An expert system may assign the Type.(Only the types present on the land being analyzed would be automatically presented.) |
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WHITE PINE The average specific gravity for this cover type: 0.40 Stands of this cover type are usually pure or consist of a majority of the stocking. WHITE PINE makes up about 60 percent of this cover type. Depending on site conditions, the following species will make up about 30 percent of this forest cover type: 1. YELLOW-POPLAR The following species may be occasional associates, making up about 10 percent of this cover type: 1. BIGTOOTH ASPEN |
Trevey Forest Cover Type Number 52 ( S.A.F. Forest Cover Type 44 )
CHESTNUT OAK
The average specific gravity for this cover type: 0.54
Available heat (Million BTU) per cord green wood: 17.13
The old-aged heartwood cavity Proclivity Index for this cover type is: 4.40
Stands of this cover type are usually pure or consist of a majority of the stocking.
CHESTNUT OAK makes up about 60 percent of this cover type.
Depending on site conditions, the following species will make up about 40 percent of this forest cover type:
1. BEAR OAK
2. NORTHERN RED OAK
3. SOUTHERN RED OAK
4. BLACK OAK
5. POST OAK
6. SCARLET OAK
7. WHITE OAK
8. SOURWOOD
9. SHAGBARK HICKORY
10. PIGNUT HICKORY
11. SWEET BIRCH
12. YELLOW-POPLAR
13. BLACK GUM
14. SWEETGUM
15. BLACK CHERRY
16. BLACK WALNUT
17. RED MAPLE
18. SUGAR MAPLE
19. EASTERN REDCEDAR
20. HEMLOCK
21. WHITE PINE
22. PITCH PINE
23. TABLE-MOUNTAIN PINE
24. SHORTLEAF PINE
25. VIRGINIA PINE
26. LONGLEAF PINE
Trevey Forest Cover Type Number 75 ( S.A.F. Forest Cover Type 94 )
SYCAMORE SWEETGUM AMERICAN ELM
The average specific gravity for this cover type: 0.47
Available heat (Million BTU) per cord green wood: 14.87
The old-aged heartwood cavity Proclivity Index for this cover type is: 8.20
This cover type usually comprises a majority of the Stocking.
SYCAMORE makes up about 30 percent of this cover type.
SWEETGUM makes up about 30 percent of this cover type.
AMERICAN ELM makes up about 10 percent of this cover type.
Depending on site conditions, the following species will make up about 30 percent of this forest cover type:
1. GREEN ASH
2. SUGARBERRY
3. HACKBERRY
4. BOXELDER
5. SILVER MAPLE
6. COTTONWOOD
7. BLACK WILLOW
8. WATER OAK
9. PECAN
| Average green-weight specific gravity for Forest Cover Types found in the area | |||
| Trevey Number |
SAF Number |
Specific Gravity |
Available heat (million BTU) per cord green wood (80 cu ft) |
| 3 | 21 | 0.40 | 12.71 |
| 52 | 44 | 0.54 | 17.13 |
| 75 | 94 | 0.47 | 14.87 |
| Average Old-Age Heartwood Cavity Proclivity Index for Forest Cover Types found in the area | ||
| Trevey Number | SAF Number | Cavity Index |
| 3 | 21 | 4.46 |
| 52 | 44 | 4.40 |
| 75 | 94 | 8.20 |
| The old-aged useful cavity proclivity index for tree species is based on Table 7 of the Cavity analyses work of Giles, Kroll, and Windon, 1982 0 = shrubs or tree too small to have significant cavities Tendency: 0 decay resistance of heartwood = index of 0. | ||
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This Web site is maintained by R. H.
Giles, Jr.
Last revision May 8, 2001.