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Alstonia angustiloba

Common pulai · Family: Apocynaceae · ID 43657 · alive · Condition: fair · LC · Least Concern · Elevation: 32.5 m

Photos

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trunk branches leaf

Dimensions

9.64 mHeight
3.3 mTrunk height
43 cmTrunk diameter (DBH)
7.84 mCanopy height
11.2 mCanopy width
35.25 mCanopy circumference
87.7 m²Crown projection area
456.16 m³Crown volume
1Stems

Structure & risk

22.45Slenderness (H/D)
2.9Safety factor (default wind)
23.07 °Leaning angle
4.72 °Trunk lean angle
34.22Competition index
5.15 mTree protection zone
7.73 mRoot protection zone
l0TMS category

Health & vitality

fairCondition
mediumVitality
matureAge class
slightly defoliatedCrown transparency
23.29 %Foliage transparency
2.46 %Dieback
74.5 %Crown density
65.79 %Crown light exposure ratio
81.34 %Live crown ratio
439.26 m²Leaf area
5.01Leaf area index (LAI)
0.97Leaf area / crown vol.

Ecosystem services

458.0 kgCarbon storage
31.85 kgCarbon sequestration / yr
84.15 kgOxygen production / yr
0.27 m³Avoided runoff
4.74 m³Water intercepted
5.58 m³Transpiration
4.71 m³Evaporation
29.06 m³Potential evapotranspiration
10.52 gCO removed / yr
41.58 gNO₂ removed / yr
89.72 gSO₂ removed / yr
26.17 gPM2.5 removed / yr
501.16 gO₃ removed / yr

Data quality

0Outlier index

Surroundings

noneOverhead utilities

Amenity valuation

6399.21CAVAT value
19103.58Koch value
2013.45RADO value

Other

2025-12-19G u fextracted_change date
23:57:09G u fextracted_change time
115G u fextracted_critical wind speed
2025-06-18G u fextracted_inv date
Jalan Rajawali P9 B 1 G u fextracted_street
7001G u fextracted_taxon i d
1.8Crown base height
9.64Live 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 Rajawali P9 B 1 · 2.941294, 101.672183 · Elevation 32.5 m