Orb greenForest assessment software for tree measurements and biodiversity indicators
Orb greenForest assessment software for tree measurements and biodiversity indicators

Haukadalsskógur okt 2026

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Measured 9–23 Oct 2026· Shared with you

152 trees measured in 8 completed plots in this forest between 9 Oct and 23 Oct 2026 with the Orb Vision app, recording diameter (DBH), height and species. Mostly Greni (38%), then Lerki (28%) and Fura (15%). 32 more plots not completed yet.

Forest area

1,748 ha

from boundary

Completed plots

8

152 trees in total

Field time

22 min

avg. per completed plot (8)

Tree density

1,322 trees/ha(95 % CI 516–2,128)

Trees per hectare in completed plots

Standing volume

129 m³/ha(95 % CI 21.9–235.7)

Form factor 0.5 · 2 more completed plots needed for forest totals (8 of 10)

Carbon stock

155 t CO₂/ha(95 % CI 26.4–284.4)

Wood density × BEF × 0.47 × 44/12 · 2 more completed plots needed for forest totals (8 of 10)

Harvestable volume

Not enough data yet

Trees ≥ 30 cm DBH · shown when more plots narrow the range

Tree capturesShowing 2 of 8 plots

RGB, mask and other images · select trees to export

Images

Plot 33· Hólf 7· 19 trees

1/3
Greni

Tree #1DBH 6 cmHeight 6.0 m

Greni

Tree #2DBH 11 cmHeight 9.8 m

Greni

Tree #3DBH 26 cmHeight 11.5 m

Greni

Tree #4DBH 11 cmHeight 8.3 m

1/3
Greni

Tree #5DBH 12 cmHeight 11.8 m

1/3
Greni

Tree #6DBH 12 cmHeight 9.2 m

1/3
Greni

Tree #7DBH 5 cmHeight 4.6 m

1/3
Greni

Tree #8DBH 11 cmHeight 11.0 m

Unidentified

Tree #9DBH 10 cm

Greni

Tree #10DBH 9 cmHeight 7.0 m

1/3
Greni

Tree #11DBH 18 cmHeight 9.8 m

1/3
Greni

Tree #12DBH 18 cm

1/3
Greni

Tree #13DBH 24 cmHeight 8.5 m

Greni

Tree #14DBH 9 cmHeight 4.5 m

Unidentified

Tree #15DBH 10 cm

1/3
Greni

Tree #16DBH 4 cmHeight 3.0 m

Greni

Tree #17DBH 21 cmHeight 4.7 m

1/3
Greni

Tree #18DBH 24 cmHeight 12.9 m

Greni

Tree #19DBH 11 cmHeight 8.8 m

Plot 34· Hólf 7· 20 trees

1/3
Rauðgreni

Tree #1DBH 24 cmHeight 12.3 m

1/3
Rauðgreni

Tree #2DBH 15 cmHeight 5.1 m

1/3
Rauðgreni

Tree #3DBH 18 cmHeight 8.8 m

Rauðgreni

Tree #4DBH 4 cm

1/3
Rauðgreni

Tree #5DBH 29 cmHeight 12.7 m

Unidentified

Tree #6DBH 1 cm

Rauðgreni

Tree #7DBH 6 cmHeight 1.6 m

1/3
Rauðgreni

Tree #8DBH 21 cmHeight 12.5 m

1/3
Rauðgreni

Tree #9DBH 21 cm

1/3
Rauðgreni

Tree #10DBH 25 cmHeight 12.5 m

1/3
Rauðgreni

Tree #11DBH 26 cmHeight 12.7 m

1/3
Rauðgreni

Tree #12DBH 16 cmHeight 11.3 m

1/3
Rauðgreni

Tree #13DBH 19 cmHeight 21.0 m

1/3
Rauðgreni

Tree #14DBH 5 cmHeight 13.9 m

1/3
Unidentified

Tree #15DBH 4 cmHeight 3.3 m

1/3
Rauðgreni

Tree #16DBH 17 cmHeight 10.6 m

1/3
Rauðgreni

Tree #17DBH 17 cmHeight 20.0 m

1/3
Rauðgreni

Tree #18DBH 24 cmHeight 11.8 m

1/3
Rauðgreni

Tree #19DBH 22 cmHeight 11.1 m

1/3
Rauðgreni

Tree #20DBH 13 cm

Sampling

1 plot per 218 ha

0.0066 % of the area sampled

Mean DBH

12.6 cm

Max DBH

33.8 cm

Mean height

8.7 m

Max height

25.0 m

Basal area

21.7 m²/ha (95 % CI 6.5–36.9)

Σ π·DBH²/4 over trees, divided by total sample plot area

Height vs DBH

86 trees9 flaggedDashed lines: height/diameter 30 and 150

Orb checks every height against the tree's DBH. 9 of 95 measured heights look wrong (height/diameter outside 30–150).

Show 9 flagged trees
  • DBH 3 cm · Height 6.1 m · H/D 224
  • DBH 3 cm · Height 4.6 m · H/D 184
  • DBH 21 cm · Height 4.7 m · H/D 23
  • DBH 6 cm · Height 1.6 m · H/D 29
  • DBH 5 cm · Height 13.9 m · H/D 288
  • DBH 22 cm · Height 3.6 m · H/D 17
  • DBH 10 cm · Height 25.0 m · H/D 258
  • DBH 2 cm · Height 13.5 m · H/D 677
  • DBH 10 cm · Height 17.6 m · H/D 176

DBH class distribution

Species composition

Volume by species

Carbon by species

Growth & Carbon Sequestration

Not calculated yet for this forest. Carbon stock above is from today's measurements.

Growth, annual carbon sequestration and projections can be calculated with more data:

  • A second measurement of the same plots, a few years apart, gives measured growth per tree and per hectare.
  • Or growth and allometric models for the species here, which give modelled increment and sequestration from today's measurements.
  • At least 10 completed plots for whole-forest figures (2 more needed).