Identification

Title

Growth and physiological measurements of Leontodon hispidus and Succisa pratensis after ozone exposure and elevated nitrogen input from an ozone field release system, North Wales, 2016-2018

Abstract

The data presented are growth and physiological measurements from an ozone exposure experiment, during which grassland forbs, Leontodon hispidus and Succisa pratensis were exposed to low, medium and high ozone treatments over three growing seasons, using an outdoor Free Air Ozone Enrichment system, and with and without the addition of nitrogen during the first year. The plants were planted in April 2016 and were exposed to Low, Medium and High ozone treatments over three growing seasons (May to September 2016-2018). Measurements were taken of light-saturated photosynthesis, stomatal conductance, chlorophyll index, number of flowering stems, leaf ground cover, and the dried weight of litter. All measurements were made by members of the project. The experiments were carried out in the UKCEH Bangor Air Pollution Facility. Work was funded by the UK Centre for Ecology & Hydrology under the Natural Environment Research Council (UK) grant/award NEC05574. For L. hispidus a lower leaf cover was observed with elevated ozone, and there was an increase in litter with added nitrogen. For S. pratensis, elevated ozone reduced flowering and increased foliar damage. Increased litter and accelerated winter die-back with both ozone and nitrogen were also recorded for S. pratensis. These effects have implications for inter- and intra-specific competition, seed establishment, nutrient cycling, as well as the provision of general pollinator resources and highlight the need for concerted action to reduce pre-cursor ozone emissions to go alongside habitat management efforts to protect biodiversity. Full details about this dataset can be found at https://doi.org/10.5285/382baaf2-7795-4aa8-a434-56c9e6bd1516

Resource type

dataset

Resource locator

https://data-package.ceh.ac.uk/data/382baaf2-7795-4aa8-a434-56c9e6bd1516

name: Download the data

description: Download a copy of this data

function: download

https://data-package.ceh.ac.uk/sd/382baaf2-7795-4aa8-a434-56c9e6bd1516.zip

name: Supporting information

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/382baaf2-7795-4aa8-a434-56c9e6bd1516

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

biota

climatologyMeteorologyAtmosphere

Keywords

Keyword set

keyword value

Environmental Monitoring Facilities

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

originating controlled vocabulary

title

Wikidata

reference date

date type

creation

effective date

2012-10-29

Keyword set

keyword value

ozone

Plant growth

rough hawkbit

Devil's bit scabious

Geographic location

West bounding longitude

-4.021

East bounding longitude

-4.013

North bounding latitude

53.24

South bounding latitude

53.235

Temporal reference

Temporal extent

Begin position

2016-04-15

End position

2018-09-15

Dataset reference date

date type

publication

effective date

2020-11-12

Frequency of update

notPlanned

Quality and validity

Lineage

The plants were planted directly into the ground in 1m separate square blocks, with the two species alternating in a Latin square design, within nine Free Air Ozone Enrichment (FAOE) rings (4m diameter). Plants were exposed to low, medium and high ozone treatments over three growing seasons (May to September 2016-2018, treatment means: 24, 40 and 57 parts per billion, respectively), with and without the addition of nitrogen (40 kg ha-1 yr-1) during the first year. Irrigation occurred naturally from precipitation, and no supplementary watering was required apart from that associated with the nitrogen addition. Light-saturated photosynthesis and stomatal conductance was recorded on healthy leaves using a LI-COR 6400XT. The chlorophyll index was measured on healthy leaves using an Opti-Sciences CCM200 meter. Plants were oven-dried at 60 degrees Celsius to determine dry weight. Ground cover was determined from grids (containing 100 squares) overlain onto photographs of the plant blocks, with total leaf area and the proportion of damaged leaves assessed. Data was recorded onto field sheets and transferred to Excel sheets and subsequently exported to comma separated value files for deposit into the EIDC.

Conformity

Conformity report

specification

title

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

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Comma-separated values (CSV)

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

If you reuse this data, you should cite: Holder, A.J., Hayes, F., Sharps, K., Harmens, H. (2020). Growth and physiological measurements of Leontodon hispidus and Succisa pratensis after ozone exposure and elevated nitrogen input from an ozone field release system, North Wales, 2016-2018. NERC Environmental Information Data Centre https://doi.org/10.5285/382baaf2-7795-4aa8-a434-56c9e6bd1516

author

Metadata on metadata

Metadata point of contact

organisation name

Environmental Information Data Centre

full postal address

Lancaster Environment Centre, Library Avenue, Bailrigg

Lancaster

LA1 4AP

email address

info@eidc.ac.uk

responsible party role

pointOfContact

Metadata date

2023-02-09T11:09:06

Metadata language

eng