|Table of Contents|

Study on Influence of Different Growing Mediums of Lawn Green Roofs for Roof Runoff Control in Beijing

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年20
Page:
86-91
Research Field:
Publishing date:

Info

Title:
Study on Influence of Different Growing Mediums of Lawn Green Roofs for Roof Runoff Control in Beijing
Author(s):
SHAN JinDAI Ziyun
(Beijing Key Laboratory of Ecological Function Assessment and Regulation Technology of Green Space,Beijing Institute of Landscape Architecture,Beijing 100102)
Keywords:
lawn-style green rooflight weight substratewater retentionpollution purification
PACS:
-
DOI:
10.11937/bfyy.20190853
Abstract:
Roof greening is an important technology of the low-impact development of stormwater runoff control in Sponge City,and it is also an effective means to reduce the pollution load on urban roofs.According to the characteristics of rainfall in Beijing,a set of rainfall simulation testing device was established to study the influence of lawn-style green roof substrate commonly used in Beijing on roof water flow and water quality.The results showed that compared with the substrate with garden soil as the main component,‘Baolyusu’ with perlite as the main component had better effects on reducing stormwater runoff and peak flow,and delaying runoff time.In addition,it can improve the control effect of pollutants at the early stage of rainfall.It is necessary to comprehensively consider the construction cost and the plants landscape,and on this basis,the purpose of controlling the amount of runoff water and water quality of the urban roof can be achieved by selecting suitable substrates.

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Last Update: 2019-11-04