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扩大城市绿量,提升城市景观效果满足人们俯视、平视、仰视等不同方位欣赏城市景色的需求,缓解居住在水泥城市中的人们的压抑感,愉悦身心。降解大气飘尘花园式屋顶绿化年平均滞尘量12.3克/米2,平均滞尘率31.13%;简单式屋顶绿化年平均滞尘量8.5克/米2,平均滞尘率21.53%。有效截留雨水,缓解城市雨洪压力花园式屋顶绿化可截留雨水64.6%;简单式屋顶绿化可截留雨水21.5%。二者平均,屋顶绿化可截留雨水43.1%。
Expand the green space of the city and enhance the effect of the urban landscape. Meet the needs of people looking down at the city from different directions such as looking down, head-up and looking up, and ease the sense of depression and pleasure of people living in the cement city. Degradation of atmospheric dust garden-like roof greening the average annual amount of dust 12.3 g / m 2, the average dust removal rate of 31.13%; simple roof greening the average amount of dust 8.5 g / m 2, the average dust removal rate of 21.53%. Effective interception of rainwater to ease the pressure of urban rainwater Garden-like green roof can trap rainwater 64.6%; Simple roof greening can trap rainwater 21.5%. On average, the green roof can hold 43.1% of rainwater.