Species.lib
The Species.lib version of the FPS Species library file has been superseded by the FBRILib.mdb file since FPS version 6.60 (est. 2007/02/22). The following information is provided for reference purposes only.
Contents
- 1 FPS Species Library - Structure and Definitions
- 1.1 Record Types: 21-29 – Height / Age curve shapes for various site index levels.
- 1.2 Record Type: 100 – Species identification and tolerance
- 1.3 Record Type: 120 – Site curve shapes by level of site index
- 1.4 Record Types: 121-124 – Number of years to reach 6-meters in height from birth.
- 1.5 Record Types: 131-134 – Proportion surviving from birth to 6-meters in height.
- 1.6 Record Type: 141 – Natural regeneration potential density by site class.
- 1.7 Record Type: 211 – Competing Growing Space around tree as a function of Dbh.
- 1.8 Record Type: 212 – Residual live crown ratio at given Competitive Stress levels.
- 1.9 Record Type: 220 – Increase in periodic growth due to nutrient additions.
- 1.10 Record Types: 221-228 – Mortality rates by tree size and density.
- 1.11 Record Type: 229 – Reference Cell Mortality rate (200 x 1.333).
- 1.12 Record Type: 230 – Reference Cell Dbh growth rate (200 x 1.333).
- 1.13 Record Types: 231-238 – Dbh growth rates (cm/m) by tree size (cm/m) and density.
- 1.14 Record Type: 240 – Reference Cell Height growth rate (200 x 1.333).
- 1.15 Record Types: 241-248 – Height growth rates (m/m) by tree size (cm/m) and density.
- 1.16 Record Type: 310 – Reference taper profile for access table cell (1.333 x 24).
- 1.17 Record Types: 311-316 – Taper access table for given dbh and total height values.
- 1.18 Record Types: 321-325 – Taper profiles for each of five Taper Classes.
- 1.19 Record Types: 331-333 – Bark profiles for each of three Taper Classes.
- 1.20 Record Types: 900-999 – Comment records for species, regions and general updates.
- 2 Footnotes
FPS Species Library - Structure and Definitions
The Forest Projection System (FPS) accesses all parameters for growth, mortality, volume, site productivity, silvicultural response and natural regeneration capacity from an external fixed-format text file. This parameter text file is named “Species.Lib”.
The Species Library (Species.Lib) contains parameters for each Species in a Region. It is organized as a series of Regions with a list of Species within each Region. The format of the Species Library provides for up to 960 Regions with up to 96 Species within a Region.
The first 100 Regions are reserved for Forest Biometrics Research Institute (FBRI) development and support of public and semi-public geographically specific regional libraries. Initial libraries available in 2002 included:
Regional Library No. |
Initial Development |
Description | No. Species |
---|---|---|---|
1 | 1986 | Pacific Northwest Region (OR, WA, BC) | 15 |
2 | 1986 | Inland Northwest Region (OR, WA, ID, MT) | 12 |
3 | 1986 | Western Montana | 11 |
4 | 1986 | SW Oregon & Northern California | 13 |
5 | 1986 | SW British Columbia | 12 |
6 | 1987 | Interior British Columbia | 11 |
7 | 1988 | Alberta / Saskatchewan | 7 |
9 | 1988 | California Coastal Region | 14 |
10 | 1999 | Universal FPS Reference Library | 50 |
11 | 1996 | Western Oregon | 15 |
12 | 1997 | Western Washington | 15 |
13 | 1998 | Inland Washington Region | 26 |
14 | 1999 | Northern Idaho & Western Montana | 26 |
15 | 1999 | Inland Oregon Region | 26 |
16 | Northern California Region | ||
17 | South Coast British Columbia | ||
18 | Interior British Columbia (Western Rockies) | ||
19 | Alberta / Saskatchewan (Eastern Rockies) | ||
20 | Alaska South Coast Panhandle | ||
26 | 1999 | Hawaiian Islands FPS Library | 4 |
Other Regional Libraries are planned for most of the forested regions on the western part of the North American continent over the next five years (2003-2008). All of these regional libraries will be reviewed, updated and released by the FBRI on a periodic basis using approximately a five-year cycle. Revisions will emphasize refinement of silvicultural effects, species representation and regional variability assessments.
Species Library numbers of 101-960 are available to individual organizations to copy/paste from a standard Regional Library (1-99) in order to begin developing a customized and localized FPS Library of their own. This localized library is necessary due to the extensive amount of variation that exists in soils, topography and climate within any given Regional Species Library developed to-date. This localized variation causes significant departures in species dominance, silvicultural response and yield potentials when compared to averages developed from pooled datasets across any single geographic region.
The Forest Biometrics Research Institute (FBRI) provides a series of software tools (FPSTools) for manipulating these Regional Libraries. With these tools, a representative species library may be chosen from any Region and then inserted into a new localized Regional text file (Species.Lib). This localized Species library may then be calibrated to direct field observations from the geographic region of interest (Tree Farm, County Forest, Reservation, Watershed, State Forest or National Forest). There are many parameters of growth and yield that vary among species and among regions within a species. These variations are critical to obtaining reliable analyses of sustained yields, silvicultural investments and species diversity.
FBRI assists forest managers and professional analysts in validating and calibrating customized Regional Libraries for each geographic ownership of concern. These localized Species Libraries can incorporate silvicultural response information by species to a degree not possible using broad regional averages (Libraries 1-100).
All parameters available in the Species Library structure are described in this documentation. As mentioned earlier, the Species Library format is designed for a capacity of up to 96 species in each of 960 regions. All parameters are applied in metric units of centimeters, meters and hectares. If your forest inventory database is maintained in English units (inches, feet and acres), the FPS software converts the parameters of the Species Library at time of output. All internal FPS Species Library computations are in metric units. No equations exist within the FPS software for manipulation of biologic parameters. All output values are determined from interpolations across the response surfaces of the Species Library described in this documentation. Only standard economic discount formulas exist within the software tools.
The following sets of descriptions apply to each Species within each Region. All fields are fixed format ANSI standard text. No binary or special characters are included.
- Column 1-3 = Numeric Region code (1-960) in ascending sorted order with no significance to position in the list.
- Column 4-5 = Numeric Species code (1-96) in ascending sorted order with the first species in the list being the reference species for all site potential indices not specified by species.
- Column 6-8 = Numeric record type identifier for each of the component model parameters found in the Species Library file. These record types are also in ascending sorted order.
Record Types: 21-29 – Height / Age curve shapes for various site index levels.
10 0 20Age 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 10 0 21H/A 29 59 79 92 100 105 107 109 110 110 110 111 111 111 111 111 111 111 111 111 10 0 22H/A 28 56 76 90 100 106 111 114 116 117 118 118 119 119 119 119 119 119 119 119 10 0 23H/A 29 53 72 88 100 110 117 123 128 132 135 137 139 140 142 142 143 144 144 145 10 0 24H/A 22 45 66 84 100 113 124 133 141 147 152 157 160 163 165 167 169 170 171 172 10 0 25H/A 14 36 59 80 100 117 132 145 156 165 173 179 184 189 192 196 198 200 202 203 10 0 26H/A 9 29 53 77 100 121 141 157 172 184 195 204 212 218 224 228 232 235 238 240 10 0 27H/A 6 22 46 73 100 126 150 172 191 207 221 233 243 251 258 264 269 273 276 279 10 0 28H/A 3 16 39 68 100 132 161 188 212 233 250 265 277 288 296 303 309 313 317 320 10 0 29H/A 1 11 33 64 100 138 174 207 237 262 284 301 316 328 338 346 352 357 361 364
Columns | Description of field |
---|---|
9-11 | “H/A” = Relative Height / Age profile for a given shape of curve. |
12-15 | Total height at age 10 divided by total height at age 50. |
16-19 | Total height at age 20 divided by total height at age 50. |
20-23 | Total height at age 30 divided by total height at age 50. |
24-27 | Total height at age 40 divided by total height at age 50. |
28-31 | Total height at age 50 divided by total height at age 50. |
32-35 | Total height at age 60 divided by total height at age 50. |
36-39 | Total height at age 70 divided by total height at age 50. |
40-43 | Total height at age 80 divided by total height at age 50. |
44-47 | Total height at age 90 divided by total height at age 50. |
48-51 | Total height at age 100 divided by total height at age 50. <- Index |
52-55 | Total height at age 110 divided by total height at age 50. |
56-59 | Total height at age 120 divided by total height at age 50. |
60-63 | Total height at age 130 divided by total height at age 50. |
64-67 | Total height at age 140 divided by total height at age 50. |
68-71 | Total height at age 150 divided by total height at age 50. |
72-75 | Total height at age 160 divided by total height at age 50. |
76-79 | Total height at age 170 divided by total height at age 50. |
80-83 | Total height at age 180 divided by total height at age 50. |
84-87 | Total height at age 190 divided by total height at age 50. |
88-91 | Total height at age 200 divided by total height at age 50. |
Each species has reference site index curves for each site class from 5 to 50 meters in total height at 50 years. This table of height/age shapes provides the ability to assign a unique shape to each and every site class curve within each species in each region. This set of curve shapes is defined for each region. By default, this reference set of curve shapes is common to all regions and species. These curves are based on the research by Dr. Boris Zeide in 1978 titled “Standardization of Growth Curves” in the Journal of Forestry Volume 76(5), pages 289-292.
Record Type 20 is included in the Species Library for visual reference only.
Record Type: 100 – Species identification and tolerance
10 1100Sp: .330 RC Western Red Cedar Tol: .60-1
Columns | Description of field |
---|---|
9-11 | “Sp:” visual record type identifier only |
12-16 | Specific gravity for bone-dry biomass computations from volume |
18-19 | 2-digit alphanumeric species code for database identification of species |
21-40 | Species name as a label for reports |
47-51 | Shade tolerance classification (0.20 = Very intolerant; 0.60 = Very tolerant). [1] |
53 | Tolerance class where 1 = Very tolerant to 5 = Very intolerant |
Shade tolerance and Competitive Stress Index (CSI) for natural regeneration establishment are defined as:
- 0.000 – 0.299 as Very Intolerant (Class = 5), must have CSI < 37.5;
- 0.300 – 0.399 as Intolerant (Class = 4), must have CSI < 112.5;
- 0.400 – 0.499 as Intermediate (Class = 3), must have CSI < 187.5;
- 0.500 – 0.599 as Tolerant (Class = 2), must have CSI < 262.5;
- 0.600 – 0.900 as Very Tolerant (Class = 1), must have CSI < 337.5.
Record Type: 120 – Site curve shapes by level of site index
10 1120SI:1.000 164 158 153 147 143 140 137 135 134 132
Columns | Description of field |
---|---|
9-11 | “SI:” visual record type identifier only |
12-16 | Ratio of site index values between species (this species / first species in library). Provides a means to convert site index between species. |
17-21 | Index to site curve shape for the 5-meter site class (at 50yrs). |
22-26 | Index to site curve shape for the 10-meter site class (at 50yrs). |
27-31 | Index to site curve shape for the 15-meter site class (at 50yrs). |
32-36 | Index to site curve shape for the 20-meter site class (at 50yrs). |
37-41 | Index to site curve shape for the 25-meter site class (at 50yrs). |
42-46 | Index to site curve shape for the 30-meter site class (at 50yrs). |
47-51 | Index to site curve shape for the 35-meter site class (at 50yrs). |
52-56 | Index to site curve shape for the 40-meter site class (at 50yrs). |
57-61 | Index to site curve shape for the 45-meter site class (at 50yrs). |
62-66 | Index to site curve shape for the 50-meter site class (at 50yrs). |
Record Types: 121-124 – Number of years to reach 6-meters in height from birth.
10 1121YrsFre 42 27 18 13 10 8 7 6 5 5 10 1122YrsSpr 11 7 4 3 2 2 1 1 1 1 10 1123YrsBrs 17 10 7 5 4 3 2 2 1 1 10 1124YrsAnm 17 10 7 5 4 3 2 2 1 1
Columns | Description of fields |
---|---|
9-14 | “YrsFre” = Free-to-Grow years to reach 6-meters in height (121) “YrsSpr” = Additional years if no Site Preparation was applied (122) |
17-21 | # of years required for 5-meter site class (at 50yrs). |
22-26 | # of years required for 10-meter site class (at 50yrs). |
27-31 | # of years required for 15-meter site class (at 50yrs). |
32-36 | # of years required for 20-meter site class (at 50yrs). |
37-41 | # of years required for 25-meter site class (at 50yrs). |
42-46 | # of years required for 30-meter site class (at 50yrs). |
47-51 | # of years required for 35-meter site class (at 50yrs). |
52-56 | # of years required for 40-meter site class (at 50yrs). |
57-61 | # of years required for 45-meter site class (at 50yrs). |
62-66 | # of years required for 50-meter site class (at 50yrs). |
Record Types: 131-134 – Proportion surviving from birth to 6-meters in height.
10 1131SurFre .959 .973 .982 .987 .990 .992 .993 .994 .995 .995 10 1132SurSpr .355 .515 .651 .732 .791 .823 .855 .872 .889 .889 10 1133SurBrs .316 .486 .614 .704 .761 .807 .839 .855 .889 .889 10 1134SurAnm .373 .536 .657 .739 .791 .831 .855 .872 .898 .898
Columns | Description of fields |
---|---|
9-14 | “SurFre” = Free-to-Grow survival to reach 6-meters in height (131) “SurSpr” = Multiplier if no Site Preparation was applied (132) |
17-21 | Proportion surviving for 5-meter site class (at 50yrs). |
22-26 | Proportion surviving for 10-meter site class (at 50yrs). |
27-31 | Proportion surviving for 15-meter site class (at 50yrs). |
32-36 | Proportion surviving for 20-meter site class (at 50yrs). |
37-41 | Proportion surviving for 25-meter site class (at 50yrs). |
42-46 | Proportion surviving for 30-meter site class (at 50yrs). |
47-51 | Proportion surviving for 35-meter site class (at 50yrs). |
52-56 | Proportion surviving for 40-meter site class (at 50yrs). |
57-61 | Proportion surviving for 45-meter site class (at 50yrs). |
62-66 | Proportion surviving for 50-meter site class (at 50yrs). |
Record Type: 141 – Natural regeneration potential density by site class.
10 1141NatReg 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
Columns | Description of field |
---|---|
9-14 | “NatReg” = Potential natural regeneration density w/o competition. |
17-21 | Potential regeneration per 1/250 hectare plot for 5-meter site class. |
22-26 | Potential regeneration per 1/250 hectare plot for 10-meter site class. |
27-31 | Potential regeneration per 1/250 hectare plot for 15-meter site class. |
32-36 | Potential regeneration per 1/250 hectare plot for 20-meter site class. |
37-41 | Potential regeneration per 1/250 hectare plot for 25-meter site class. |
42-46 | Potential regeneration per 1/250 hectare plot for 30-meter site class. |
47-51 | Potential regeneration per 1/250 hectare plot for 35-meter site class. |
52-56 | Potential regeneration per 1/250 hectare plot for 40-meter site class. |
57-61 | Potential regeneration per 1/250 hectare plot for 45-meter site class. |
62-66 | Potential regeneration per 1/250 hectare plot for 50-meter site class. |
Record Type: 211 – Competing Growing Space around tree as a function of Dbh.
10 1211CSI 1.2 3.5 5.6 7.5 9.3 10.8 12.2 13.5 14.7 15.7
Columns | Description of field |
---|---|
9-11 | “CSI” = Competing width for Competitive Stress Index computations |
17-21 | Competing width in meters for 0-centimeter dbh trees. |
22-26 | Competing width in meters for 10-centimeter dbh trees. |
27-31 | Competing width in meters for 20-centimeter dbh trees. |
32-36 | Competing width in meters for 30-centimeter dbh trees. |
37-41 | Competing width in meters for 40-centimeter dbh trees. |
42-46 | Competing width in meters for 50-centimeter dbh trees. |
47-51 | Competing width in meters for 60-centimeter dbh trees. |
52-56 | Competing width in meters for 70-centimeter dbh trees. |
57-61 | Competing width in meters for 80-centimeter dbh trees. |
62-66 | Competing width in meters for 90-centimeter dbh trees. |
Record Type: 212 – Residual live crown ratio at given Competitive Stress levels.
10 1212Crn 1.000 .976 .516 .376 .276 .216 .176 .136 .086 .000
Columns | Description of field |
---|---|
9-11 | “Crn” = Residual live crown ratio at various levels of density. |
17-21 | Live crown ratio (% total height) at Competitive Stress Index = 100. |
22-26 | Live crown ratio (% total height) at Competitive Stress Index = 200. |
27-31 | Live crown ratio (% total height) at Competitive Stress Index = 300. |
32-36 | Live crown ratio (% total height) at Competitive Stress Index = 400. |
37-41 | Live crown ratio (% total height) at Competitive Stress Index = 500. |
42-46 | Live crown ratio (% total height) at Competitive Stress Index = 600. |
47-51 | Live crown ratio (% total height) at Competitive Stress Index = 700. |
52-56 | Live crown ratio (% total height) at Competitive Stress Index = 800. |
57-61 | Live crown ratio (% total height) at Competitive Stress Index = 900. |
62-66 | Live crown ratio (% total height) at Competitive Stress Index = 1000. |
Competitive Stress Index (CSI) is defined as the amount of overlap of competing trees into the zone of influence of the subject tree divided by the area of the zone of influence. Thus, an index of 100 is a subject tree with 100% of its zone of influence only occupied by itself (without competitors). The zone of influence is defined as the open-grown crown width of the subject tree. If the tree does not have a full crown, then the open-grown crown width is estimated from the dbh of the subject tree based on the open-grown crown widths of other trees of similar dbh. The definition and method of application of CSI is identical to the definition and application of Crown Competition Factor (CCF) where the zone of influence is one full hectare (acre) and all trees within the hectare (acre) are competitors. Competitive Stress Index was developed and published by Dr. James D. Arney in 1973 as “Tables of Competitive Stress Index” from the Canadian Forestry Service.
Record Type: 220 – Increase in periodic growth due to nutrient additions.
10 1220AddFrt 2.020 3.320 4.680 5.240 5.470 5.560
Columns | Description of field |
---|---|
9-14 | “AddFrt” = Increased periodic growth after nutrient additions. |
15-20 | Periodic increase in site index due to a 50 Kg/ha nutrient addition. |
21-26 | Periodic increase in site index due to a 100 Kg/ha nutrient addition. |
27-32 | Periodic increase in site index due to a 200 Kg/ha nutrient addition. |
33-38 | Periodic increase in site index due to a 300 Kg/ha nutrient addition. |
39-44 | Periodic increase in site index due to a 400 Kg/ha nutrient addition. |
45-50 | Periodic increase in site index due to a 500 Kg/ha nutrient addition. |
Record Types: 221-228 – Mortality rates by tree size and density.
10 1221DieOpn .101 .041 .014 .005 .000 .000 10 1222DieDom .234 .096 .033 .011 .000 .000 10 1223DieCod .513 .210 .072 .024 .001 .000 10 1224DieInt .737 .302 .104 .034 .001 .000 10 1225DieSup .817 .345 .119 .039 .001 .000 10 1226DieSup .817 .426 .147 .048 .001 .001 10 1227DieSup .817 .460 .158 .052 .001 .001 10 1228DieDie .817 .492 .169 .055 .001 .001
Columns | Description of fields |
---|---|
9-14 | “DieOpn” = Mortality rates by size for Competitive Stress 100. (221) “DieDom” = Mortality rates by size for Competitive Stress 200. (222) |
15-20 | Mortality rates of trees with Dbh (cm) / Height (m) ratio = 0.333 |
21-26 | Mortality rates of trees with Dbh (cm) / Height (m) ratio = 0.667 |
27-32 | Mortality rates of trees with Dbh (cm) / Height (m) ratio = 1.000 |
33-38 | Mortality rates of trees with Dbh (cm) / Height (m) ratio = 1.333 |
39-44 | Mortality rates of trees with Dbh (cm) / Height (m) ratio = 1.667 |
45-50 | Mortality rates of trees with Dbh (cm) / Height (m) ratio = 2.000 |
Record Type: 229 – Reference Cell Mortality rate (200 x 1.333).
10 1229DieRef .011
Columns | Description of field |
---|---|
9-14 | “DieRef” = Reference value (200x 1.333) for shifting mortality surface. |
15-20 | Reference mortality for cell 200 x 1.333, all others are adjusted by multiplication of Ratio = “DieRef” / cell (200 x 1.333). All values are proportional rate of mortality (dead trees / all trees) occurring within the growth step (6-meter height growth) of the model. |
Record Type: 230 – Reference Cell Dbh growth rate (200 x 1.333).
10 1230DbhRef 1.161
Columns | Description of field |
---|---|
9-14 | “DbhRef” = Reference value (200 x 1.333) for shifting dbh increment. |
15-20 | Reference dbh increment for cell 200 x 1.333, all others are adjusted by multiplication of Ratio = “DbhRef” / cell (200 x 1.333). All values are dbh growth (cm) divided by potential height growth (m) on an individual tree basis. Potential height growth is the site curve growth rate for this species of this height on this site index. |
Record Types: 231-238 – Dbh growth rates (cm/m) by tree size (cm/m) and density.
10 1231DbhOpn .000 .449 1.006 1.720 2.143 2.162 10 1232DbhDom .000 .303 .679 1.161 1.447 1.460 10 1233DbhCod .000 .231 .518 .885 1.103 1.112 10 1234DbhInt .000 .200 .448 .765 .954 .962 10 1235DbhSup .000 .152 .341 .583 .726 .733 10 1236DbhSup .000 .131 .293 .501 .624 .629 10 1237DbhSup .000 .117 .263 .449 .560 .565 10 1238DbhDie .000 .108 .242 .413 .515 .520
Columns | Description of fields |
---|---|
9-14 | “DbhOpn” = Growth rates by size for Competitive Stress 100. (231) “DbhDom” = Growth rates by size for Competitive Stress 200. (232) |
15-20 | Dbh growth rates of trees with Dbh (cm) / Height (m) ratio = 0.333 |
21-26 | Dbh growth rates of trees with Dbh (cm) / Height (m) ratio = 0.667 |
27-32 | Dbh growth rates of trees with Dbh (cm) / Height (m) ratio = 1.000 |
33-38 | Dbh growth rates of trees with Dbh (cm) / Height (m) ratio = 1.333 |
39-44 | Dbh growth rates of trees with Dbh (cm) / Height (m) ratio = 1.667 |
45-50 | Dbh growth rates of trees with Dbh (cm) / Height (m) ratio = 2.000 |
All dbh growth values are diameter increment (cm) divided by potential height growth (m) of an individual tree for the current growth step of the model. Potential height growth (m) is the site curve growth increment for this species of this initial height on this site index for the specified number of years. The specified number of years equals the years necessary to cause a 6-meter height change in the reference species.
Record Type: 240 – Reference Cell Height growth rate (200 x 1.333).
10 1240HtsRef 1.002
Columns | Description of field |
---|---|
9-14 | “HtsRef” = Reference value (200 x 1.333) for shifting dbh increment. |
15-20 | Reference height increment for cell 200 x 1.333, all others are adjusted by multiplication of Ratio = “HtsRef” / cell (200 x 1.333). All values are height growth (m) divided by potential height growth (m) on an individual tree basis. Potential height growth is the site curve growth rate for this species of this height on this site index. |
Record Types: 241-248 – Height growth rates (m/m) by tree size (cm/m) and density.
10 1241HtsOpn .000 .474 .985 1.258 1.332 1.361 10 1242HtsDom .000 .378 .785 1.002 1.062 1.085 10 1243HtsCod .000 .333 .692 .884 .936 .957 10 1244HtsInt .000 .302 .626 .800 .847 .866 10 1245HtsSup .000 .268 .557 .711 .753 .769 10 1246HtsSup .000 .245 .508 .649 .687 .702 10 1247HtsSup .000 .224 .465 .594 .630 .643 10 1248HtsDie .000 .197 .408 .521 .552 .564
Columns | Description of fields |
---|---|
9-14 | “HtsOpn” = Growth rates by size for Competitive Stress 100. (231) “HtsDom” = Growth rates by size for Competitive Stress 200. (232) |
15-20 | Height growth rates of trees with Dbh (cm) / Height (m) ratio = 0.333 |
21-26 | Height growth rates of trees with Dbh (cm) / Height (m) ratio = 0.667 |
27-32 | Height growth rates of trees with Dbh (cm) / Height (m) ratio = 1.000 |
33-38 | Height growth rates of trees with Dbh (cm) / Height (m) ratio = 1.333 |
39-44 | Height growth rates of trees with Dbh (cm) / Height (m) ratio = 1.667 |
45-50 | Height growth rates of trees with Dbh (cm) / Height (m) ratio = 2.000 |
All height growth values are observed height increment (m) divided by potential height growth (m) of an individual tree for the current growth step of the model. Potential height growth (m) is the site curve growth increment for this species of this initial height on this site index for the specified number of years. The specified number of years equals the years necessary to cause a 6-meter height change in the reference species.
Record Type: 310 – Reference taper profile for access table cell (1.333 x 24).
10 1310AccRef .234
Columns | Description of field |
---|---|
9-14 | “AccRef” = Access to taper profiles for a given dbh and total height. |
15-20 | Reference taper profile for shifting dbh/height access table based on difference from value in cell (1.333 x 24). All table values are shifted by adding the difference (“AccRef” value – cell (1.333 x 24) value) to each cell. The object is to remove bias between observed and estimated values by shifting the entire access table array a fixed amount. |
Record Types: 311-316 – Taper access table for given dbh and total height values.
10 1311Acc .3 .273 .270 .266 .262 .259 .255 .252 .248 .245 .241 10 1312Acc .7 .268 .263 .258 .253 .248 .243 .238 .233 .228 .223 10 1313Acc1.0 .262 .256 .250 .243 .237 .230 .224 .218 .212 .205 10 1314Acc1.3 .256 .249 .241 .234 .226 .218 .211 .203 .195 .187 10 1315Acc1.7 .251 .242 .233 .224 .215 .205 .196 .187 .179 .170 10 1316Acc2.0 .245 .235 .224 .214 .204 .193 .183 .172 .162 .152
Columns | Description of fields |
---|---|
9-14 | “Acc .3” = Taper values for trees with dbh/height ratio = 0.333 (cm/m) “Acc .7” = Taper values for trees with dbh/height ratio = 0.667 (cm/m) |
15-19 | Taper profile value for trees of total height = 6 meters |
20-24 | Taper profile value for trees of total height = 12 meters |
25-29 | Taper profile value for trees of total height = 18 meters |
30-34 | Taper profile value for trees of total height = 24 meters |
35-39 | Taper profile value for trees of total height = 30 meters |
40-44 | Taper profile value for trees of total height = 36 meters |
45-49 | Taper profile value for trees of total height = 42 meters |
50-54 | Taper profile value for trees of total height = 48 meters |
55-59 | Taper profile value for trees of total height = 54 meters |
60-64 | Taper profile value for trees of total height = 60 meters |
The taper profile value is the relative height on a tree to the point where diameter outside bark is 80% of the outside bark diameter at breast height. Relative height is defined as the height above breast height divided by the total height above breast height.
Record Types: 321-325 – Taper profiles for each of five Taper Classes.
10 1321TapOpn .000 .032 .100 .206 .341 .491 .639 .771 .876 .9491.000 10 1322TapDom .000 .083 .200 .332 .467 .595 .709 .809 .889 .9521.000 10 1323TapCod .000 .145 .300 .440 .562 .666 .754 .832 .897 .9531.000 10 1324TapInt .000 .215 .400 .537 .640 .722 .788 .849 .903 .9541.000 10 1325TapSup .000 .293 .500 .627 .709 .767 .815 .862 .908 .9551.000
Columns | Description of field |
---|---|
9-14 | “TapOpn” = Open-grown tree taper profile for Taper Class = 0.10 “TapDom” = Dominant tree taper profile for Taper Class = 0.20 |
15-19 | Relative height to point where dob = 100% of dob at breast height. |
20-24 | Relative height to point where dob = 90% of dob at breast height. |
25-29 | Relative height to point where dob = 80% of dob at breast height. |
30-34 | Relative height to point where dob = 70% of dob at breast height. |
35-39 | Relative height to point where dob = 60% of dob at breast height. |
40-44 | Relative height to point where dob = 50% of dob at breast height. |
45-49 | Relative height to point where dob = 40% of dob at breast height. |
50-54 | Relative height to point where dob = 30% of dob at breast height. |
55-59 | Relative height to point where dob = 20% of dob at breast height. |
60-64 | Relative height to point where dob = 10% of dob at breast height. |
65-69 | Relative height to point where dob = 0% of dob at breast height. |
Relative height is the (observed height – breast height) / (total height – breast height). The observed relative height where diameter outside bark is 80% of the diameter outside bark at breast height is used as a reference value for each profile. The reference value is referred to as Taper Class. Each Taper Class profile is defined by the observed averages of all measured trees within that Class independent of observations from other Taper Classes. The use of labels about crown class (dominance) are for mental reference only.
Record Types: 331-333 – Bark profiles for each of three Taper Classes.
10 1331BrkOpn .936 .934 .931 .929 .926 .923 .921 .917 .914 .911 .910 10 1332BrkCod .946 .944 .943 .941 .939 .937 .936 .934 .932 .929 .929 10 1333BrkSup .945 .943 .940 .937 .934 .932 .929 .926 .923 .919 .918
Columns | Description of field |
---|---|
9-14 | “BrkOpn” = Open-grown tree bark profile for Taper Class = 0.10 “BrkCod” = Codominant tree bark profile for Taper Class = 0.30 |
15-19 | Bark ratio at the point where dob = 100% of dob at breast height. |
20-24 | Bark ratio at the point where dob = 90% of dob at breast height. |
25-29 | Bark ratio at the point where dob = 80% of dob at breast height. |
30-34 | Bark ratio at the point where dob = 70% of dob at breast height. |
35-39 | Bark ratio at the point where dob = 60% of dob at breast height. |
40-44 | Bark ratio at the point where dob = 50% of dob at breast height. |
45-49 | Bark ratio at the point where dob = 40% of dob at breast height. |
50-54 | Bark ratio at the point where dob = 30% of dob at breast height. |
55-59 | Bark ratio at the point where dob = 20% of dob at breast height. |
60-64 | Bark ratio at the point where dob = 10% of dob at breast height. |
65-69 | Bark ratio at the point where dob = 0% of dob at breast height. |
Bark ratio is the ratio of (diameter inside bark / diameter outside bark) at the point of observation. Observation points along the stem are defined in terms of diameter steps instead of the traditional height steps. Bark ratios are defined only at the extremes and at the mid-range of Taper Classes (10%, 30% and 50% Classes). Bark ratios for other taper classes are interpolated from these three bark profiles.
Record Types: 900-999 – Comment records for species, regions and general updates.
10 1900Rem Arney, James D. and Milner, Kelsey S. 2000. Biometrics of 10 1900Rem Forest Inventory, Forest Growth and Forest Planning. 304p 10 1900Rem Arney, J.D. 1999. Universal Species Library for the Forest 10 1900Rem Projection System Growth Model. Forest Biometrics Rpt. #8
Columns | Description of field |
---|---|
9-11 | “Rem” = Remarks and Comments for any reason, species or region. |
12-90 | Any comments, text, figures, formulas and references as needed. |
A sample list of parameters for a single species within a single region is displayed on the following page:
10 1100Sp: .330 RC Western Red Cedar Tol: .60-1 10 1120SI:1.000 164 158 153 147 143 140 137 135 134 132 10 1121YrsFre 42 27 18 13 10 8 7 6 5 5 10 1122YrsSpr 11 7 4 3 2 2 1 1 1 1 10 1123YrsBrs 17 10 7 5 4 3 2 2 1 1 10 1124YrsAnm 17 10 7 5 4 3 2 2 1 1 10 1131SurFre .959 .973 .982 .987 .990 .992 .993 .994 .995 .995 10 1132SurSpr .355 .515 .651 .732 .791 .823 .855 .872 .889 .889 10 1133SurBrs .316 .486 .614 .704 .761 .807 .839 .855 .889 .889 10 1134SurAnm .373 .536 .657 .739 .791 .831 .855 .872 .898 .898 10 1141NatReg 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 10 1211CSI 1.2 3.5 5.6 7.5 9.3 10.8 12.2 13.5 14.7 15.7 10 1212Crn 1.000 .976 .516 .376 .276 .216 .176 .136 .086 .000 10 1220AddFrt 2.020 3.320 4.680 5.240 5.470 5.560 10 1221DieOpn .101 .041 .014 .005 .000 .000 10 1222DieDom .234 .096 .033 .011 .000 .000 10 1223DieCod .513 .210 .072 .024 .001 .000 10 1224DieInt .737 .302 .104 .034 .001 .000 10 1225DieSup .817 .345 .119 .039 .001 .000 10 1226DieSup .817 .426 .147 .048 .001 .001 10 1227DieSup .817 .460 .158 .052 .001 .001 10 1228DieDie .817 .492 .169 .055 .001 .001 10 1229DieRef .011 10 1230DbhRef 1.161 10 1231DbhOpn .000 .449 1.006 1.720 2.143 2.162 10 1232DbhDom .000 .303 .679 1.161 1.447 1.460 10 1233DbhCod .000 .231 .518 .885 1.103 1.112 10 1234DbhInt .000 .200 .448 .765 .954 .962 10 1235DbhSup .000 .152 .341 .583 .726 .733 10 1236DbhSup .000 .131 .293 .501 .624 .629 10 1237DbhSup .000 .117 .263 .449 .560 .565 10 1238DbhDie .000 .108 .242 .413 .515 .520 10 1240HtsRef 1.002 10 1241HtsOpn .000 .474 .985 1.258 1.332 1.361 10 1242HtsDom .000 .378 .785 1.002 1.062 1.085 10 1243HtsCod .000 .333 .692 .884 .936 .957 10 1244HtsInt .000 .302 .626 .800 .847 .866 10 1245HtsSup .000 .268 .557 .711 .753 .769 10 1246HtsSup .000 .245 .508 .649 .687 .702 10 1247HtsSup .000 .224 .465 .594 .630 .643 10 1248HtsDie .000 .197 .408 .521 .552 .564 10 1310AccRef .234 10 1311Acc .3 .273 .270 .266 .262 .259 .255 .252 .248 .245 .241 10 1312Acc .7 .268 .263 .258 .253 .248 .243 .238 .233 .228 .223 10 1313Acc1.0 .262 .256 .250 .243 .237 .230 .224 .218 .212 .205 10 1314Acc1.3 .256 .249 .241 .234 .226 .218 .211 .203 .195 .187 10 1315Acc1.7 .251 .242 .233 .224 .215 .205 .196 .187 .179 .170 10 1316Acc2.0 .245 .235 .224 .214 .204 .193 .183 .172 .162 .152 10 1321TapOpn .000 .032 .100 .206 .341 .491 .639 .771 .876 .9491.000 10 1322TapDom .000 .083 .200 .332 .467 .595 .709 .809 .889 .9521.000 10 1323TapCod .000 .145 .300 .440 .562 .666 .754 .832 .897 .9531.000 10 1324TapInt .000 .215 .400 .537 .640 .722 .788 .849 .903 .9541.000 10 1325TapSup .000 .293 .500 .627 .709 .767 .815 .862 .908 .9551.000 10 1331BrkOpn .936 .934 .931 .929 .926 .923 .921 .917 .914 .911 .910 10 1332BrkCod .946 .944 .943 .941 .939 .937 .936 .934 .932 .929 .929 10 1333BrkSup .945 .943 .940 .937 .934 .932 .929 .926 .923 .919 .918
Footnotes
Notes
References
- ↑ Original rankings taken from Frederick S. Baker, 1950, Principals of Silviculture textbook, Tolerance Tables pages 66-67.