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Alstonia angustiloba

Common pulai · Family: Apocynaceae · ID 46417 · alive · Condition: fair · LC · Least Concern · Elevation: 35.9 m

Photos

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trunk branches leaf

Dimensions

12.23 mHeight
2.95 mTrunk height
39 cmTrunk diameter (DBH)
7.81 mCanopy height
8.48 mCanopy width
26.64 mCanopy circumference
55.27 m²Crown projection area
318.53 m³Crown volume
1Stems

Structure & risk

32.05Slenderness (H/D)
2.05Safety factor (default wind)
2.04 °Leaning angle
5.46 °Trunk lean angle
2.93Competition index
4.58 mTree protection zone
6.87 mRoot protection zone
l0TMS category

Health & vitality

fairCondition
mediumVitality
matureAge class
slightly defoliatedCrown transparency
22.51 %Foliage transparency
0 %Dieback
57.88 %Crown density
97.08 %Crown light exposure ratio
63.85 %Live crown ratio
292.21 m²Leaf area
5.29Leaf area index (LAI)
0.92Leaf area / crown vol.

Ecosystem services

286.21 kgCarbon storage
40.88 kgCarbon sequestration / yr
108.02 kgOxygen production / yr
0.16 m³Avoided runoff
2.72 m³Water intercepted
3.2 m³Transpiration
2.7 m³Evaporation
16.67 m³Potential evapotranspiration
6.04 gCO removed / yr
23.86 gNO₂ removed / yr
51.47 gSO₂ removed / yr
15.01 gPM2.5 removed / yr
287.48 gO₃ removed / yr

Data quality

0Outlier index

Surroundings

noneOverhead utilities

Amenity valuation

5021.63CAVAT value
17467.1Koch value
1783.61RADO value

Other

2025-12-19G u fextracted_change date
23:57:09G u fextracted_change time
95G 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
4.43Crown base height
12.23Live 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 · 2.937890, 101.674614 · Elevation 35.9 m