@inproceedings{9dd7b78db65448df93633cf7452c8962,
title = "Hydrology, ecology and water chemistry of two suds ponds: Detailed analysis of ecosystem services provided by blue-green infrastructure",
abstract = "Stormwater retention ponds are an important part of blue-green infrastructure, providing multiple benefits associated with flood resilience, water quality improvements, wildlife habitat creation and increases in amenity and biodiversity values. Here we compare two ponds in Edinburgh (Scotland): Oxgangs and Juniper Green. These were both established 10-15 years ago during construction of housing estates and are 3.5 km apart. The volumes of the ponds were calculated using detailed hydrographic data (obtained as part of this study). Delineation of catchments was performed using fine resolution DEM data together with details of the storm water sewer network. Hydrological and hydrodynamic modelling was carried out using the SHETRAN and CityCAT models. The presence of the ponds not only delays peak discharge after an extreme precipitation event but also reduces it rather considerably. Reductions in peak discharge and delay are much bigger for the larger Oxgangs pond, giving a 45% reduction in discharge and a 5-minute delay for a 15-minute one-in-100-year event. Data obtained on water chemistry, abundance of planktonic organisms and abundance of macroinvertebrates suggest that the increase in pollutant levels affects biological water quality and the ecosystem structure. Oxgangs pond has much higher electrical conductivity, corresponding to higher concentrations of specific elements and lower macroinvertebrate indices than Juniper Green. However, the water in Juniper Green is enriched in Ag, Pb and a number of REE, which may be related to discarded electronics. In addition to the flood resilience and water quality benefits, both ponds provide considerable amenity and biodiversity value. To date, there are 103 and 22 species of vascular plants, 20 and 16 species of bryophytes, 5 and 2 species of non-lichenised fungi and 11 and 4 species of epiphytic lichens recorded, respectively, at Oxgangs and Juniper Green. The results presented here have implications for further research and stormwater pond design and management practices.",
keywords = "Biodiversity, Blue-green cities, CityCAT, Ecosystem services, Hydrological modelling, SHETRAN, SuDS, Water quality",
author = "Vladimir Krivtsov and Steve Birkinshaw and Heather Forbes and Valerie Olive and David Chamberlain and Janee Lomax and Jim Buckman and Rebecca Yahr and Scott Arthur and Kayoko Takezawa and Derek Christie",
note = "Funding Information: ACKNOWLEDGEMENTS This study was supported by the EPSRC funding for the “Urban Flood Resilience” project (grants EP/P004180/1 and EP/P003982/1). Alejandro Sevilla, Alice Masip, Achiraya Kraiphet, Yamina Monteiro, Simon Kennedy, Cameron Diekonigin, Caroline Cruickshanks and Cesare Pertusi are kindly thanked for their various contributions to fieldwork, data processing and identification/biological recording. Help of Garth Foster was invaluable in identifying water beetles. Publisher Copyright: {\textcopyright} 2020 WIT Press.; 7th International Conference on Flood and Urban Water Management 2020, FRIAR 2020 ; Conference date: 28-09-2020 Through 30-09-2020",
year = "2020",
month = dec,
day = "7",
doi = "10.2495/FRIAR200151",
language = "English",
isbn = "9781784663797",
series = "WIT Transactions on the Built Environment",
publisher = "WIT Press",
pages = "167--178",
editor = "S. Mambretti and D. Proverbs",
booktitle = "Urban Water Systems and Floods III",
address = "United Kingdom",
}