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Alstonia angustiloba

Common pulai · Family: Apocynaceae · ID 15119 · alive · Condition: poor · LC · Least Concern · Elevation: 28.0 m

Photos

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trunk branches leaf

Dimensions

17.6 mHeight
8.68 mTrunk height
46 cmTrunk diameter (DBH)
5.82 mCanopy height
10.29 mCanopy width
32.43 mCanopy circumference
75.6 m²Crown projection area
307.19 m³Crown volume
1Stems

Structure & risk

38.56Slenderness (H/D)
1.03Safety factor (default wind)
5.27 °Leaning angle
3 °Trunk lean angle
0Competition index
5.48 mTree protection zone
8.22 mRoot protection zone
l0TMS category

Health & vitality

poorCondition
lowVitality
matureAge class
severely defoliatedCrown transparency
68.17 %Foliage transparency
8.23 %Dieback
59.63 %Crown density
100 %Crown light exposure ratio
33.07 %Live crown ratio
133.15 m²Leaf area
1.77Leaf area index (LAI)
0.44Leaf area / crown vol.

Ecosystem services

427.29 kgCarbon storage
38.49 kgCarbon sequestration / yr
101.7 kgOxygen production / yr
0.18 m³Avoided runoff
3.03 m³Water intercepted
3.57 m³Transpiration
3.01 m³Evaporation
18.57 m³Potential evapotranspiration
8.9 gCO removed / yr
35.15 gNO₂ removed / yr
75.83 gSO₂ removed / yr
22.12 gPM2.5 removed / yr
423.58 gO₃ removed / yr

Data quality

1Outlier index

Surroundings

noneOverhead utilities

Amenity valuation

7180.22CAVAT value
20869.44Koch value
2132.79RADO value

Other

2025-12-19G u fextracted_change date
23:57:09G u fextracted_change time
70G u fextracted_critical wind speed
2025-06-15G u fextracted_inv date
Jalan P2 F G u fextracted_street
7001G u fextracted_taxon i d
11.78Crown base height
17.6Live 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 P2 F · 2.924257, 101.685563 · Elevation 28.0 m