Biomass of Trifolium repens versus Lolium perenne after ozone exposure in solardomes
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
dataset
https://data-package.ceh.ac.uk/data/5de90f7a-dec9-4bd5-af52-d0873a09d25d
name: Download the data
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https://data-package.ceh.ac.uk/sd/5de90f7a-dec9-4bd5-af52-d0873a09d25d.zip
name: Supporting information
description: Supporting information available to assist in re-use of this dataset.
function: information
1418144487386
CEH:EIDC:
eng
biota
Environmental Monitoring Facilities
publication
2008-06-01
creation
2006-01-01
competition
ozone
grassland
root
leaf
solar domes
solardome
-4.018
-4.016
53.239
53.237
2007-04-30
2007-10-31
publication
2014-12-18
creation
2010-01-01
notPlanned
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.
publication
2010-12-08
Comma-separated values (CSV)
© UK Centre for Ecology & Hydrology
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
UK Centre for Ecology & Hydrology
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Centre for Ecology & Hydrology
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Centre for Ecology & Hydrology
author
University of York
author
NERC EDS Environmental Information Data Centre
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NERC Environmental Information Data Centre
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UK Centre for Ecology & Hydrology
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Environmental Information Data Centre
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2021-06-25T18:38:50