5de90f7a-dec9-4bd5-af52-d0873a09d25d English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:17:07 UK GEMINI 2.3 WGS 84 Biomass of Trifolium repens versus Lolium perenne after ozone exposure in solardomes 2014-12-18 publication 2010-01-01 creation 1418144487386 CEH:EIDC: https://catalogue.ceh.ac.uk/id/5de90f7a-dec9-4bd5-af52-d0873a09d25d 10.5285/5de90f7a-dec9-4bd5-af52-d0873a09d25d doi: Hayes, F., Mills, G., Ashmore, M. (2014). Biomass of Trifolium repens versus Lolium perenne after ozone exposure in solardomes. NERC Environmental Information Data Centre 10.5285/5de90f7a-dec9-4bd5-af52-d0873a09d25d The data are biomass measurements from an ozone exposure experiment, during which Trifolium repens and Lolium perenne were exposed as both monocultures and two-species mixtures to an episodic rural ozone regime in large, well-watered containers within solardomes for 12 weeks. Treatments were elevated ozone (AOT40 (Accumulated Ozone Threshold exposure of 40 parts per billion) of 12.86 ppm h) or control conditions (AOT40 of 0.02 ppm h). Measurements were dry weight, with a cutting height of 7cm above soil level. The distribution of plant material within the canopy was determined by separating material growing in the upper canopy (>14cm) from the canopy edge and the inner canopy for both species. The experiments were carried out in the CEH Bangor Air Pollution Facility. Work was funded by the Centre for Ecology & Hydrology Integrating Fund Initiative. The observed decreases in photosynthetic efficiency and capacity in elevated ozone indicate that the ability of such ubiquitous vegetation to act as a sink for atmospheric carbon may be reduced in future climates. Full details about this dataset can be found at https://doi.org/10.5285/5de90f7a-dec9-4bd5-af52-d0873a09d25d UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk pointOfContact Hayes, F. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-1037-5725 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Mills, G. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-9870-2868 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Ashmore, M. University of York mike.ashmore@york.ac.uk author NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC Environmental Information Data Centre info@eidc.ac.uk publisher UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk owner notPlanned Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Trifolium repens Lolium perenne Wikidata 2012-10-29 creation root leaf grassland ozone GEMET - Concepts, version 4.1.3 2019-01-28 creation Abergwyngregyn GeoNames 2006-01-01 creation Pollution competition solar domes solardome otherRestrictions no limitations otherRestrictions This resource is made available under the terms of the Open Government Licence otherRestrictions © UK Centre for Ecology & Hydrology otherRestrictions If you reuse this data, you should cite: Hayes, F., Mills, G., Ashmore, M. (2014). Biomass of Trifolium repens versus Lolium perenne after ozone exposure in solardomes. NERC Environmental Information Data Centre https://doi.org/10.5285/5de90f7a-dec9-4bd5-af52-d0873a09d25d textTable English utf8 biota 2007-04-30 2007-10-31 -4.018 -4.016 53.237 53.239 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre Environment Centre Wales, Deiniol Road Bangor Gwynedd LL57 2UW United Kingdom enquiries@ceh.ac.uk distributor https://data-package.ceh.ac.uk/data/5de90f7a-dec9-4bd5-af52-d0873a09d25d Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/5de90f7a-dec9-4bd5-af52-d0873a09d25d.zip Supporting information Supporting information available to assist in re-use of this dataset. information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Trifolium repens and Lolium perenne were exposed as both monocultures and two-species mixtures to an episodic rural ozone regime in large, well-watered containers within solardomes for 12 weeks. Treatments were elevated ozone (AOT40 of 12.86 ppm h) or control conditions (AOT40 of 0.02 ppm h). There were reductions in biomass for T. repens, but not L. perenne, and the proportion of T. repens decreased in ozone-exposed mixtures compared to the control. In addition, leaf biomass of T. repens was maintained at the expense of biomass partitioning to the stolons. The decreased growth corresponded with decreased photosynthetic capacity for T. repens, however, by the end of the exposure there was also decreased photosynthetic capacity of L. perenne, a species previously considered insensitive to ozone. The observed decreases in photosynthetic efficiency and capacity in elevated ozone indicate that the ability of such ubiquitous vegetation to act as a sink for atmospheric carbon may be reduced in future climates.