How to calculate the green area of trees?

Greening rate = green area/total area, that is, land certificate area, including the sum of building area, road area and green area.

Green area includes plant land area, garden pavilions, pools, ponds and other land areas.

The green coverage area includes: actual green planting coverage area, street green coverage area, roof green coverage area and scattered tree coverage area, but excluding the projected area of shrubs under trees to avoid duplication.