1118 · Alstonia scholaris — PLUS Expressway

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Alstonia scholaris

Blackboard tree · Family: Apocynaceae · ID 1118 · alive · Condition: fair · LC · Least Concern

Photos

3D point cloud drag to rotate · scroll to zoom

wood leaf

Dimensions

5.77 mHeight

0.5 mTrunk height

11 cmTrunk diameter (DBH)

4.16 mCanopy height

3.13 mCanopy width

9.84 mCanopy circumference

7.31 m²Crown projection area

23.02 m³Crown volume

1Stems

Structure & risk

54.95Slenderness (H/D)

0.46Safety factor (default wind)

1.73 °Leaning angle

1.2 °Trunk lean angle

1.79Competition index

1.26 mTree protection zone

0.16 mCritical root zone

1.89 mRoot protection zone

l0TMS category

Health & vitality

fairCondition

mediumVitality

youngAge class

slightly defoliatedCrown transparency

22.16 %Foliage transparency

0 %Dieback

67.29 %Crown density

98.22 %Crown light exposure ratio

71.95 %Live crown ratio

55.14 m²Leaf area

6.73Leaf area index (LAI)

2.4Leaf area / crown vol.

Ecosystem services

13.72 kgCarbon storage

9.32 kgCarbon sequestration / yr

24.61 kgOxygen production / yr

0.03 m³Avoided runoff

0.38 m³Water intercepted

0.44 m³Transpiration

0.37 m³Evaporation

2.28 m³Potential evapotranspiration

0.83 gCO removed / yr

3.26 gNO₂ removed / yr

7.02 gSO₂ removed / yr

2.05 gPM2.5 removed / yr

39.18 gO₃ removed / yr

Amenity valuation

379.92CAVAT value

4819.01Koch value

490.6RADO value

Other

noBuilding clearance issue detected

notPresentOverhead utilities

noRoad clearance issue detected

Location

Lebuhraya Hubungan Kedua · 1.427069, 103.603297