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Alstonia angustiloba

Common pulai · Family: Apocynaceae · ID 43838 · alive · Condition: good · LC · Least Concern · Elevation: 31.7 m

Photos

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trunk branches leaf

Dimensions

16.67 mHeight
7.48 mTrunk height
33 cmTrunk diameter (DBH)
11.71 mCanopy height
6.97 mCanopy width
21.89 mCanopy circumference
38.84 m²Crown projection area
301.63 m³Crown volume
1Stems

Structure & risk

50.8Slenderness (H/D)
0.59Safety factor (default wind)
13.6 °Leaning angle
3.53 °Trunk lean angle
12.62Competition index
3.94 mTree protection zone
5.91 mRoot protection zone
l0TMS category

Health & vitality

goodCondition
mediumVitality
matureAge class
not defoliatedCrown transparency
12.38 %Foliage transparency
0 %Dieback
66.78 %Crown density
87.39 %Crown light exposure ratio
70.23 %Live crown ratio
593.26 m²Leaf area
15.28Leaf area index (LAI)
1.97Leaf area / crown vol.

Ecosystem services

219.43 kgCarbon storage
42.26 kgCarbon sequestration / yr
111.66 kgOxygen production / yr
0.12 m³Avoided runoff
2.13 m³Water intercepted
2.51 m³Transpiration
2.12 m³Evaporation
13.05 m³Potential evapotranspiration
4.08 gCO removed / yr
16.11 gNO₂ removed / yr
34.76 gSO₂ removed / yr
10.14 gPM2.5 removed / yr
194.16 gO₃ removed / yr

Data quality

0Outlier index

Surroundings

noneOverhead utilities

Amenity valuation

3730.8CAVAT value
14165.91Koch value
1537.37RADO value

Other

2025-12-19G u fextracted_change date
23:57:09G u fextracted_change time
50G u fextracted_critical wind speed
2025-06-20G u fextracted_inv date
Jalan Enggang P9 G u fextracted_street
7001G u fextracted_taxon i d
4.97Crown base height
16.67Live 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 Enggang P9 · 2.942099, 101.675832 · Elevation 31.7 m