Analysis of the effect of green roof substrate amended with biochar on water quality and quantity of rainfall runoff

Zhang, Qianqian; Miao, Liping; Wang, Huiwei; Wang, Long

doi:10.1007/s10661-019-7466-4

Cited by 34 publications

(7 citation statements)

References 29 publications

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“…Substrate and drainage layer materials significantly impact the GR runoff quality (Xu et al 2022). Whether GRs act as a sink for substances through deposition or as non-point sources of pollution depends on the substrate and drainage materials (Berndtsson et al 2009;Alsup et al 2011;Karczmarczyk et al 2014;Wang et al 2017;Baryła et al 2018;Jennett and Zheng 2018;Qianqian et al 2019). Additionally, the fact that water flowing from GRs has potential for nonpotable uses adds to the importance of using materials that prevent water pollution (Santana et al 2022).…”

Section: Materials Impacts On Runoff Qualitymentioning

confidence: 99%

Sustainable green roofs: a comprehensive review of influential factors

Shahmohammad

Hosseinzadeh

Dvorak

et al. 2022

Environ Sci Pollut Res

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Green roofs have gained much attention as a modern roofing surface due to their potential to deliver many environmental and social benefits. Studies have indicated that different GR designs deliver different ecosystem services, and there are important factors that affect GR performance. This article reviewed significant factors that influence GR performance and sustainability. Substrate and drainage layer material choice significantly affects stormwater retention potential, leachate quality, plant survival, and determines GR environmental footprints. Subsequently, type of plants, their form, and kinds used on GRs impact GR ecosystem function. Leaf area is the most studied trait due to its influence on the cooling potential and energy performance. In order to achieve a sustainable GR, it is essential to select the type of plants that have a high survival rate. Perennial herbs, particularly forbs and grass as dominant groups, are heat and drought tolerant, which make them suitable in GR experiment. Furthermore, selecting a suitable irrigation system is as important as two other factors for having a sustainable GR. Irrigation is essential for plant survival, and due to the current pressure on valuable water sources, it is important to select a sustainable irrigation system. This review presents three sustainable irrigation methods: (i) employing alternative water sources such as rainwater, greywater, and atmospheric water; (ii) smart irrigation and monitoring; and (iii) using adaptive materials and additives that improve GR water use. This review sheds new insights on the design of high-performance, sustainable GRs and provides guidance for the legislation of sustainable GR.

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Section: Materials Impacts On Runoff Qualitymentioning

confidence: 99%

Sustainable green roofs: a comprehensive review of influential factors

Shahmohammad

Hosseinzadeh

Dvorak

et al. 2022

Environ Sci Pollut Res

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“…Urban stormwater runoff carries urban non-point source pollution, affecting water quality [91]. GRs have the potential to reduce runoff quantity, while their impact on runoff quality is debatable.…”

Section: Runoff Water Qualitymentioning

confidence: 99%

Urban Integration of Green Roofs: Current Challenges and Perspectives

Joshi

Teller

2021

Sustainability

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Green roofs (GRs) are a sustainable alternative to conventional roofs that provide multiple ecosystem services. Integrating GRs into urban areas is highly relevant considering the rapidly increasing built-up in cities. Therefore, this paper systematically and comprehensively reviews the recent literature from 2011 to 2019 on GRs to identify the challenges and perspectives related to the urban integration of GRs. The review suggests that the effectiveness of GRs in delivering ecosystem services is largely dependent on context-specific parameters such as weather conditions and existing construction or design-related parameters. Integrating GRs into urban areas can be challenging given the diversity of actors, functions, and conditions characterizing these areas. Although significant research has already been conducted on GRs, research covering more geographical locations and contexts is needed. The review points out the need to include future urbanization scenarios, such as tall buildings while analyzing the impact of GRs on ecological networks. Additionally, the review emphasizes the inclusion of urban morphological parameters alongside an analysis of the impact of GRs on microclimate regulation and air quality. In terms of social acceptance, this review points out the need to consider the temporal cycles of vegetation for noting users’ perspectives. Additionally, further research is required on the social impact of GRs, considering their influence on property prices. Lastly, the review stresses the need for more city-scale studies on the impact of GRs on ecosystem services.

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“…They observed that the best single media filters in terms of adsorptive capacity of nutrients and heavy metals were granular activated carbon, anthracite, vermiculite, and zeolite and, consequently, the best combination of those was made of granular activated carbon and zeolite in equal parts [167]. Biochar has been suggested as a means of retaining nutrients in the GR substrate [169,170].…”

Section: Mitigation At the Source-decentralized Treatment Optionsmentioning

confidence: 99%

Impact of Green Roofs and Vertical Greenery Systems on Surface Runoff Quality

Hachoumi

Pucher

Vito-Francesco

et al. 2021

Water

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Green roofs (GRs) and vertical greenery systems (VGSs) can contribute certain pollutants to stormwater runoff, affecting the quality of the receiving waters. The objective of this review paper is to discuss the potential impact of these systems on the quality of urban runoff. In the green building systems section, a series of materials used in greenery systems and their specific application are presented and environmentally relevant substances that could be leached out from these materials are identified as potential pollutants. After the identification of environmentally relevant pollutants that have already been measured in urban runoff and originate from these systems, an assessment of their pathways, fate, and impact in the aquatic environment is performed. Since GRs and VGSs are already considered to be solutions for stormwater quantity and quality management in urban areas, recommendations for mitigating their environmental impact through runoff are needed. It can be concluded that special focus should be placed on measures that target the pollution source, such as optimizing GR and VGS construction practices and materials used, as well as establishing appropriate decentralized stormwater treatment measures. Both of these approaches will help to reduce or even entirely avoid the emission of relevant pollutants into the aquatic environment.

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Analysis of the effect of green roof substrate amended with biochar on water quality and quantity of rainfall runoff

Cited by 34 publications

References 29 publications

Sustainable green roofs: a comprehensive review of influential factors

Sustainable green roofs: a comprehensive review of influential factors

Urban Integration of Green Roofs: Current Challenges and Perspectives

Impact of Green Roofs and Vertical Greenery Systems on Surface Runoff Quality

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