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Alstonia angustiloba

Common pulai · Family: Apocynaceae · ID 45079 · alive · Condition: fair · LC · Least Concern · Elevation: 37.7 m

Photos

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trunk branches leaf

Dimensions

15.05 mHeight
2.56 mTrunk height
40 cmTrunk diameter (DBH)
9.58 mCanopy height
7.93 mCanopy width
24.91 mCanopy circumference
49.48 m²Crown projection area
359.81 m³Crown volume
1Stems

Structure & risk

38.42Slenderness (H/D)
1.43Safety factor (default wind)
8.23 °Leaning angle
3.2 °Trunk lean angle
0.69Competition index
4.7 mTree protection zone
7.05 mRoot protection zone
l0TMS category

Health & vitality

fairCondition
mediumVitality
matureAge class
slightly defoliatedCrown transparency
16.08 %Foliage transparency
0 %Dieback
54.61 %Crown density
99.32 %Crown light exposure ratio
63.65 %Live crown ratio
290.67 m²Leaf area
5.88Leaf area index (LAI)
0.81Leaf area / crown vol.

Ecosystem services

308.14 kgCarbon storage
42.98 kgCarbon sequestration / yr
113.57 kgOxygen production / yr
0.14 m³Avoided runoff
2.38 m³Water intercepted
2.8 m³Transpiration
2.36 m³Evaporation
14.57 m³Potential evapotranspiration
5.28 gCO removed / yr
20.85 gNO₂ removed / yr
44.99 gSO₂ removed / yr
13.13 gPM2.5 removed / yr
251.3 gO₃ removed / yr

Data quality

0Outlier index

Surroundings

noneOverhead utilities

Amenity valuation

5329.41CAVAT value
17168.51Koch value
1837.46RADO value

Other

2025-12-19G u fextracted_change date
23:57:09G u fextracted_change time
80G u fextracted_critical wind speed
2025-06-20G u fextracted_inv date
Jalan Enggang P9 G u fextracted_street
7001G u fextracted_taxon i d
5.47Crown base height
15.05Live height

Clearances

ClearRoad clearance

Not provided Catalogued metrics with no value for this tree — measured, derived or analysed alike. Listed rather than hidden so absence is visible instead of inferred.

Girth — the survey did not record which measurements were availableGrowth formCrown light exposure — the survey did not record which measurements were availableTrunk measuredCrown measuredSpecies identified

Location

Jalan Enggang P9 · 2.941004, 101.676804 · Elevation 37.7 m