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Effect of using conventional and controlled release fertiliser on nutrient runoff from various vegetated roof systems

Emilsson, Tobias; Czemiel Berndtsson, Justyna LU ; Mattsson, Jan Erik and Rolf, Kaj (2007) In Ecological Engineering: the Journal of Ecotechnology 29(3). p.260-271
Abstract
Extensive vegetated roofs are becoming popular as a way to improve the environmental quality of cities. As more vegetated roofs are installed, there is a need for knowledge pertaining to maintenance and impact vegetated roofs have on stormwater quality Our study investigated nutrient runoff, substrate nutrient storage and plant uptake following fertilisation of vegetation mats, shoot-established vegetation systems and unvegetated substrate using three levels of fertiliser applied as either controlled release fertiliser (CRF), or as a combination of CRF and conventional fertiliser. Conventional fertilisers caused high nutrient concentrations in the runoff water. Concentrations decreased during the duration of the experiment but at the end... (More)
Extensive vegetated roofs are becoming popular as a way to improve the environmental quality of cities. As more vegetated roofs are installed, there is a need for knowledge pertaining to maintenance and impact vegetated roofs have on stormwater quality Our study investigated nutrient runoff, substrate nutrient storage and plant uptake following fertilisation of vegetation mats, shoot-established vegetation systems and unvegetated substrate using three levels of fertiliser applied as either controlled release fertiliser (CRF), or as a combination of CRF and conventional fertiliser. Conventional fertilisers caused high nutrient concentrations in the runoff water. Concentrations decreased during the duration of the experiment but at the end of the experiment they were still higher than after fertilisation with CRF. Conventional fertiliser also increased the total nutrient runoff. Vegetation system type influenced nutrient runoff and fertilisation of old vegetation mats reduced the risk for nutrient leaching compared to fertilisation of newly established surfaces. This can be attributed to temporary storage in substrate and increased uptake by vegetation. The temporary storage of nutrients following fertilisation indicated that there might be a risk for prolonged leaching. Thus, addition of conventional fertilisers or nutrient-rich material during production can reduce stormwater quality. (C) 2006 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
coated fertiliser, roof greening, fertilisation, stormwater quality, maintenance, green roof, Sedum
in
Ecological Engineering: the Journal of Ecotechnology
volume
29
issue
3
pages
260 - 271
publisher
Elsevier
external identifiers
  • wos:000245142000005
  • scopus:33847046750
ISSN
1872-6992
DOI
10.1016/j.ecoleng.2006.01.001
language
English
LU publication?
yes
id
87245c94-faff-409a-96eb-e38a8ff225db (old id 670496)
date added to LUP
2007-12-07 15:22:43
date last changed
2017-11-05 03:28:11
@article{87245c94-faff-409a-96eb-e38a8ff225db,
  abstract     = {Extensive vegetated roofs are becoming popular as a way to improve the environmental quality of cities. As more vegetated roofs are installed, there is a need for knowledge pertaining to maintenance and impact vegetated roofs have on stormwater quality Our study investigated nutrient runoff, substrate nutrient storage and plant uptake following fertilisation of vegetation mats, shoot-established vegetation systems and unvegetated substrate using three levels of fertiliser applied as either controlled release fertiliser (CRF), or as a combination of CRF and conventional fertiliser. Conventional fertilisers caused high nutrient concentrations in the runoff water. Concentrations decreased during the duration of the experiment but at the end of the experiment they were still higher than after fertilisation with CRF. Conventional fertiliser also increased the total nutrient runoff. Vegetation system type influenced nutrient runoff and fertilisation of old vegetation mats reduced the risk for nutrient leaching compared to fertilisation of newly established surfaces. This can be attributed to temporary storage in substrate and increased uptake by vegetation. The temporary storage of nutrients following fertilisation indicated that there might be a risk for prolonged leaching. Thus, addition of conventional fertilisers or nutrient-rich material during production can reduce stormwater quality. (C) 2006 Elsevier B.V. All rights reserved.},
  author       = {Emilsson, Tobias and Czemiel Berndtsson, Justyna and Mattsson, Jan Erik and Rolf, Kaj},
  issn         = {1872-6992},
  keyword      = {coated fertiliser,roof greening,fertilisation,stormwater quality,maintenance,green roof,Sedum},
  language     = {eng},
  number       = {3},
  pages        = {260--271},
  publisher    = {Elsevier},
  series       = {Ecological Engineering: the Journal of Ecotechnology},
  title        = {Effect of using conventional and controlled release fertiliser on nutrient runoff from various vegetated roof systems},
  url          = {http://dx.doi.org/10.1016/j.ecoleng.2006.01.001},
  volume       = {29},
  year         = {2007},
}