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Is sustainable extensive green roof realizable without irrigation in a temperate monsoonal climate? A case study in Beijing

文献类型： 外文期刊

作者： Zhang, Hui 1 ; Lu, Shanshan 2 ; Fan, Xifeng 1 ; Wu, Jian 3 ; Jiang, Yi 4 ; Ren, Lipeng 4 ; Wu, Juying 1 ; Zhao, Huien 5 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Res & Dev Ctr Grass & Environm, 9 Shuguanghuayuan Middle Rd, Beijing 100097, Peoples R China

2.Wofo Temple, Beijing Bot Garden, Xiangshan Rd, Beijing 100093, Peoples R China

3.Hepingli 9 Primary Sch, 20 Hepingli Zone 7, Beijing 100013, Peoples R China

4.DongSi Jiutiao Primary Sch, 67 DongSi Jiutiao Alley, Beijing 100007, Peoples R China

5.Beijing Forestry Univ, Coll Landscape Architecture, 35 Tsinghua East Rd, Beijing 100083, Peoples R China

关键词： Succulents; Geophytes; Ruderals; Self-seeding; Substrate depth; Precipitation pattern

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN： 0048-9697

年卷期： 2021 年 753 卷

页码：

收录情况： SCI

摘要： A strategy to combat the adverse effects of urbanization involves the installation of green roofs under different climatic conditions. The design and maintenance of green roof systems need to be tailored to the local climate. However, there is a scarcity of reports on the performance of plants under temperate monsoonal climatic conditions. This study follows the growth pattern of 28 species (18 non-succulent forbs and 10 succulents) grown at three substrate depths (10, 15, and 20 cm) over three years on an unirrigated extensive green roof, located in Beijing, China. The results of this study revealed that sustainable extensive green roof was realizable without irrigation in Beijing. In terms of plant adaptive strategies, the most successful plants in this study were the stress-tolerant species, followed by the ruderal species. While deeper substrate could facilitate the survival and performance of plants, substrate moisture content was more significant for the survival of plants in the dry and cold winter in Beijing. This study recommended the use of a substrate depth, which was at least 15 cm deep for unirrigated green roofs in Beijing. (C) 2020 Published by Elsevier B.V.

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