Research Article

Carbon in Trees in Tasmanian State Forest

Table 1

Forest classes of Tasmanian state forest and their description.

Forest classForest class descriptor

Eucalypt foresta

Maturea
 1E1a&b without regrowth
 2E1c&d without regrowth
 3E2a&b without regrowth
 4E2c&d without regrowth
 5E+3a&b without regrowth
 6E+3c&d without regrowth
 7E−3a&b without regrowth
 8E−3c&d without regrowth
 9E4a,b&c without regrowth
 10E4d without regrowth
 11E5a&b without regrowth

Mature with unheighted regrowtha
 12E1a&b with unheighted regrowth
 13E2a&b with unheighted regrowth
 14E+3a&b with unheighted regrowth
 15E−3a&b with unheighted regrowth
 16E4a&b with unheighted regrowth
 17E5a&b with unheighted regrowth

Mature with silvicultural regenerationa
 18E1&2 with regeneration
 19E + 3 with regeneration
 20E−3 with regeneration
 21E4&5 with regeneration

Unaged regrowth with matureb
 22ER4−6 + E1
 23ER3 + E1
 24ER1&2 + E1
 25ER4−6 + E2
 26ER3 + E2
 27ER1&2 + E2
 28ER3&4 + E+3
 29ER1&2 + E+3
 30ER3 + E−3
 31ER1&2 + E−3
 32ER1&2 + E4
 33ER1 + E5
Pure unaged regrowthc
 34ER4−6/1
 35ER3/1
 36ER1&2/1
 37ER4−6/2
 38ER3/2
 39ER1&2/2
 40ER3&4/+3
 41ER1&2/+3
 42ER3/−3
 43ER1&2/−3
 44ER1&2/4
 45ER1/5

Regrowth with silvicultural regenerationc
 46ER/1&2 + regeneration
 47ER/+3 + regeneration
 48ER/−3 +regeneration
 49ER/4&5 + regeneration

Even-aged silvicultural regenerationd
 50≤1959 regeneration/1 or 2
 51≤ 1959 regeneration/+3 or X
 52≤ 1959 regeneration/−3
 53≤ 1959 regeneration/4
 541960s regeneration/1 or 2
 551960s regeneration/+3 or X
 561960s regeneration/−3
 571960s regeneration/4
 581970s regeneration/1 or 2
 591970s regeneration/+3 or X
 601970s regeneration/−3
 611970s regeneration/4
 621980s regeneration/1 or 2
 631980s regeneration/+3 or X
 641980s regeneration/−3
 651980s regeneration/4
 661990s regeneration/1 or 2
 671990s regeneration/+3 or X
 681990s regeneration/−3
 691990s regeneration/4
 702000's regeneration/1 or 2
 712000's regeneration/+3 or X
 722000's regeneration/−3
 732000's regeneration/4
 74All regeneration/5

Unstockedd
 75Some eucalypts/1&2
 76Some eucalypts/+3 or X
 77Some eucalypts/−3
 78Some eucalypts/4
 79Some eucalypts/5
 80Unstocked/1&2
 81Unstocked/+3 or X
 82Unstocked/−3
 83Unstocked/4
 84Unstocked/5

Noneucalypt forest

Rainforeste
 85M+
 86M−

Other native forest
 87Secondary Species
 88Wattle

Plantation
 89Hardwood Plantation
 90Softwood Plantation

Nonforest
 91Scrub, Waste, Water, Sea
 92Unclassified

aMature, Regrowth, and Silvicultural Regeneration refers to eucalypt forests. E denotes eucalypt and ER regrowth. Numbers in the Forest Class descriptor represent either mature or regeneration height, and letters denote mature crown density or regrowth eucalypt crown cover. Mature eucalypt height classes are: 1 (>55 m), 2 (41–55 m), +3 (34–41 m), −3 (27–34 m), 4 (15–27 m), 5 (<15 m). Regrowth height classes are: 1 (<15 m), 2 (15–27 m), 3 (27–37 m), 4 (37–44 m), 5 (44–50 m), and 6 (>50 m). Mature eucalypt crown density codes and % crown cover are: a (70–100%), b (40–70%), c (20–40%), and d (5–20%). Regrowth eucalypt crown density codes and % crown cover are: a (90–100%), b (70–90%), c (50–70%), and d (10–50%). bER denotes regrowth, and numbers denote regrowth height or height range. Ex describes mature eucalypt component. cER denotes regrowth, numbers denote regrowth height or height range, and/number describes regrowth height potential at maturity. dSilvicultural Regeneration with height potential of regeneration indicated after/, or unstocked regions with height potential when stocked with eucalypts indicated after/. X denotes unknown height potential. eSee Methods for description of rainforest Forest Classes on observed growth rates, recorded height of previous stands, and evidence of previous tree heights from standing dead trees, fallen trees, or clumps of remnant forest.