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Alstonia angustiloba

Common pulai · Family: Apocynaceae · ID 15103 · alive · Condition: good · LC · Least Concern · Elevation: 30.8 m

Photos

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trunk branches leaf

Dimensions

18.06 mHeight
5.65 mTrunk height
70 cmTrunk diameter (DBH)
10.33 mCanopy height
10.4 mCanopy width
32.66 mCanopy circumference
88.58 m²Crown projection area
641.85 m³Crown volume
1Stems

Structure & risk

26.13Slenderness (H/D)
2.71Safety factor (default wind)
2.42 °Leaning angle
0.42 °Trunk lean angle
0Competition index
8.3 mTree protection zone
12.44 mRoot protection zone
l0TMS category

Health & vitality

goodCondition
highVitality
matureAge class
not defoliatedCrown transparency
13.3 %Foliage transparency
0.01 %Dieback
84.79 %Crown density
100 %Crown light exposure ratio
57.23 %Live crown ratio
850.04 m²Leaf area
9.6Leaf area index (LAI)
1.33Leaf area / crown vol.

Ecosystem services

1065.9 kgCarbon storage
97.53 kgCarbon sequestration / yr
257.73 kgOxygen production / yr
0.27 m³Avoided runoff
4.74 m³Water intercepted
5.58 m³Transpiration
4.71 m³Evaporation
29.05 m³Potential evapotranspiration
9.08 gCO removed / yr
35.88 gNO₂ removed / yr
77.41 gSO₂ removed / yr
22.58 gPM2.5 removed / yr
432.42 gO₃ removed / yr

Data quality

0Outlier index

Surroundings

noneOverhead utilities

Amenity valuation

16592.19CAVAT value
29509.56Koch value
3242.13RADO value

Other

2025-12-19G u fextracted_change date
23:57:09G u fextracted_change time
110G u fextracted_critical wind speed
2025-06-15G u fextracted_inv date
Jalan Tunku Abdul Rahman G u fextracted_street
7001G u fextracted_taxon i d
7.73Crown base height
18.06Live 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 Tunku Abdul Rahman · 2.923430, 101.685761 · Elevation 30.8 m