北京城市居住区绿地的滞尘效益

Dust Removal by Green Areas in the Residential Quarters of Beijing

该文比较分析北京城市居住区３种不同结构类型的绿地（乔灌草型、灌草型和草坪型）的滞尘效益，并且定量估算北京城近郊８区居住区绿地滞尘量．同时认为由乔、灌、草构成合理的绿化结构，能充分利用空间，最大可能地提高绿地上的绿量，具有较好的滞尘效益．

Three types of green areas within residential quarters of Beijing are chosen for analysis of their effects on dust removal. The potentials of dust removal of individual plants are studied in detail. In 1995,the total estimated removal by vegetation in the study areas was 2 170 t. The result also indicates that the physical benefit is subject to the total leaf biomass of vegetation per unit green area.