目前在城市绿化统计或编制城市绿地规划时,使用的“城市绿化覆盖率”指标,在应用过程中存在较大的问题。值得进一步探讨。 一、应用绿化覆盖率存在的问题 1.测定困难。绿化覆盖面积是以乔、灌木和多年生草本植物的垂直投影来测算,乔木树冠下重叠的灌木和草本植物不再重复计算。由于树种、树龄、 At present, in the urban afforestation statistics or the preparation of urban green space planning, the use of the “urban green coverage rate” indicators, there are major problems in the application process. It is worth further discussion. First, the application of green coverage problems 1. Determination difficulties. The area covered by greenery is measured by the vertical projections of the trees, shrubs and perennial herbaceous plants. Shrubs and herbs that overlap under the canopy of trees are no longer calculated. Due to tree species, age,