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Alstonia angustiloba

Common pulai · Family: Apocynaceae · ID 38349 · alive · Condition: fair · LC · Least Concern · Elevation: 36.4 m

Photos

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trunk branches leaf

Dimensions

11.5 mHeight
3.95 mTrunk height
45 cmTrunk diameter (DBH)
9.28 mCanopy height
10.8 mCanopy width
33.94 mCanopy circumference
83.72 m²Crown projection area
500.54 m³Crown volume
1Stems

Structure & risk

25.86Slenderness (H/D)
2.17Safety factor (default wind)
15.47 °Leaning angle
1.67 °Trunk lean angle
29.65Competition index
5.34 mTree protection zone
8.01 mRoot protection zone
l0TMS category

Health & vitality

fairCondition
mediumVitality
matureAge class
slightly defoliatedCrown transparency
16.8 %Foliage transparency
0.05 %Dieback
75.59 %Crown density
70.36 %Crown light exposure ratio
80.69 %Live crown ratio
732.3 m²Leaf area
8.75Leaf area index (LAI)
1.47Leaf area / crown vol.

Ecosystem services

499.72 kgCarbon storage
33.53 kgCarbon sequestration / yr
88.6 kgOxygen production / yr
0.25 m³Avoided runoff
4.41 m³Water intercepted
5.19 m³Transpiration
4.38 m³Evaporation
27.03 m³Potential evapotranspiration
9.79 gCO removed / yr
38.68 gNO₂ removed / yr
83.46 gSO₂ removed / yr
24.35 gPM2.5 removed / yr
466.21 gO₃ removed / yr

Data quality

0Outlier index

Surroundings

noneOverhead utilities

Amenity valuation

6871.22CAVAT value
19633.9Koch value
2086.39RADO value

Other

2025-12-19G u fextracted_change date
23:57:09G 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
2.23Crown base height
11.5Live 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 Kerai P8/8 · 2.934927, 101.684667 · Elevation 36.4 m