Arid
DOI10.1016/j.scitotenv.2018.03.291
Comparing grey water versus tap water and coal ash versus perlite on growth of two plant species on green roofs
Agra, Har’el1,2; Solodar, Ariel1,2,3; Bawab, Omar1,2; Levy, Shay1,2,4; Kadas, Gyongyver J.1,2,5; Blaustein, Leon1,2; Greenbaum, Noam3,6
通讯作者Agra, Har’el
来源期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
EISSN1879-1026
出版年2018
卷号633页码:1272-1279
英文摘要

Green roofs provide important ecosystem services in urban areas. In Mediterranean and other semi-arid climate regions, most perennial plants on green roofs need to be irrigated during the dry season. However, the use of freshwater in such regions is scarce. Therefore, the possibility of using grey water should be examined. Coal ash, produced primarily from the burning of coal in power plants, constitutes an environmental contaminant that should be disposed. One option is to use ash as a growing substrate for plants. Here, we compare the effects of irrigating with grey-versus tap-water and using ash versus perlite as growing substrates in green roofs. The study was conducted in northern Israel in a Mediterranean climate. The design was full factorial with three factors: water-type (grey or tap-water) x substrate-type (coal ash vs perlite) x plant species (Phyla nodiflora, Convolvulus mauritanicus or no-plant). The development of plants and the quality of drainage water along the season, as well as quality of the used substrates were monitored. Both plant species developed well under all the experimental conditions with no effect of water type or substrate type. Under all treatments, both plant species enhanced electrical conductivity (EC) and chemical oxygen demand (COD) of the drainage water. In the summer, EC and COD reached levels that are unacceptable in water and are intended to be reused for irrigation. We conclude that irrigating with grey water and using coal ash as a growth substrate can both be implemented in green roofs. The drainage from tap water as well as from grey water can be further used for irrigating the roof, but for that, COD and EC levels must be lowered by adding a sufficient amount of tap water before reusing. (C) 2018 Elsevier B.V. All rights reserved.


英文关键词COD Convolvulus mauritanicus Electric conductivity Phyla nodiflora
类型Article
语种英语
国家Israel ; England
收录类别SCI-E
WOS记录号WOS:000432475300124
WOS关键词SUBSTRATE ; REUSE ; IRRIGATION ; ECOSYSTEMS ; GREYWATER ; IMPACT ; WASTE
WOS类目Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/212963
作者单位1.Univ Haifa, Inst Evolut, Kadas Green Roofs Ecol Ctr, IL-3498838 Har Hakarmel, Israel;
2.Univ Haifa, Dept Evolutionary & Environm Biol, IL-3498838 Har Hakarmel, Israel;
3.Univ Haifa, Herta & Paul Amir Fac Social Sci, Dept Geog & Environm Studies, IL-3498838 Har Hakarmel, Israel;
4.Max Stern Yezreel Valley Coll, Multidisciplinary Studies Social Sci, IL-1930600 Yezreel Valley, Israel;
5.Univ East London, Sustainabil Res Inst, Environm Res Grp, London E16 2RD, England;
6.Univ Haifa, Dept Nat Resources & Environm Management, Fac Management, IL-3498838 Har Hakarmel, Israel
推荐引用方式
GB/T 7714
Agra, Har’el,Solodar, Ariel,Bawab, Omar,et al. Comparing grey water versus tap water and coal ash versus perlite on growth of two plant species on green roofs[J],2018,633:1272-1279.
APA Agra, Har’el.,Solodar, Ariel.,Bawab, Omar.,Levy, Shay.,Kadas, Gyongyver J..,...&Greenbaum, Noam.(2018).Comparing grey water versus tap water and coal ash versus perlite on growth of two plant species on green roofs.SCIENCE OF THE TOTAL ENVIRONMENT,633,1272-1279.
MLA Agra, Har’el,et al."Comparing grey water versus tap water and coal ash versus perlite on growth of two plant species on green roofs".SCIENCE OF THE TOTAL ENVIRONMENT 633(2018):1272-1279.
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