Table 3.
Detailed scenarios of five greening types

Method Detailed scenario Crown projected area (m2)
Neighborhood park(Case A) A0 Before construction -
A1 Low-density planting of tree 528
A2 Mid-density planting of tree 1,585
A3 High-density planting of tree 3,170
Pocket park(Case B) B0 Before construction -
B1 One pocket park construction 489
B2 Four pocket park construction (250m distance) 1,777
Parking lot greening(Case C) C0 Before greening -
C1 Tree planting in the parking lot 4,564
C2 Change the paving to lawn block 0
C3 Implement both tree planting and paving changes 4,564
Roadside planting(Case D) D0 Before planting -
D1 Low-density planting of tree 3,768
D2 High-density planting of tree 8,242
D3 Low-density tree and lower shrub planting 3,768
Rooftop․wall greening(Case E) E0 Before greening -
E1 Rooftop greening -
E2 Wall greening -