LCA	Life Cycle Assessment
UGS	Urban Green Space
DBH	Diameter at Breast Height
3DGQ	Three-dimensional Green Quantity
VSL	Vertical Structural Layer
PD	Planting Density
C	Canopy Coverage
RTS	The Ratio of Tree-shrub
RET	The Ratio of Evergreen Tree
SWDI	Shannon–Wiener Diversity Index
SDI	Simpson’s Diversity Index
PRI	Patrick Richness Index
PI	Pielou’s Evenness Index
IPCC	Intergovernmental Panel on Climate Change
FON	Field of Neighbourhood
CO2	Carbon Dioxide
kgC/ha2	Kilogram Carbon per Hectare