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Alstonia angustiloba

Common pulai · Family: Apocynaceae · ID 38420 · alive · Condition: fair · LC · Least Concern · Elevation: 35.9 m

Photos

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trunk branches leaf

Dimensions

11.77 mHeight
2.94 mTrunk height
47 cmTrunk diameter (DBH)
8.65 mCanopy height
12.22 mCanopy width
38.41 mCanopy circumference
110.41 m²Crown projection area
597.68 m³Crown volume
1Stems

Structure & risk

25.21Slenderness (H/D)
2.25Safety factor (default wind)
4.89 °Leaning angle
4.76 °Trunk lean angle
0Competition index
5.61 mTree protection zone
8.41 mRoot protection zone
l1TMS category

Health & vitality

fairCondition
mediumVitality
matureAge class
slightly defoliatedCrown transparency
19.75 %Foliage transparency
0 %Dieback
76.61 %Crown density
100 %Crown light exposure ratio
73.45 %Live crown ratio
796.01 m²Leaf area
7.22Leaf area index (LAI)
1.34Leaf area / crown vol.

Ecosystem services

443.56 kgCarbon storage
50.66 kgCarbon sequestration / yr
133.86 kgOxygen production / yr
0.32 m³Avoided runoff
5.65 m³Water intercepted
6.65 m³Transpiration
5.61 m³Evaporation
34.63 m³Potential evapotranspiration
12.54 gCO removed / yr
49.55 gNO₂ removed / yr
106.9 gSO₂ removed / yr
31.18 gPM2.5 removed / yr
597.16 gO₃ removed / yr

Surroundings

noneOverhead utilities

Amenity valuation

7514.71CAVAT value
19765.28Koch value
2181.9RADO value

Other

2026-04-24G u fextracted_change date
06:02:15G u fextracted_change time
100G u fextracted_critical wind speed
2025-06-19G u fextracted_inv date
Jalan Kerai P8/8 G u fextracted_street
7001G u fextracted_taxon i d
3.22Crown base height
11.86Live 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 availableOutlier index — the survey did not record which measurements were availableTrunk measuredCrown measuredSpecies identified

Location

Jalan Kerai P8/8 · 2.934642, 101.685055 · Elevation 35.9 m