Reinsch, S.; Sowerby, A.; Emmett, B.A.

Photosynthesis data for Calluna vulgaris, Vaccinium myrtillus and Empetrum nigrum at the Climoor field site in Clocaenog Forest (2001 - 2007)

This dataset provides photosynthesis data for the plant species Calluna vulgaris, Vaccinium myrtillus and Empetrum nigrum. Photosynthesis response curves were measured for Calluna vulgaris and Vaccinium myrtillus only. Photosynthesis was measured at the climate change field site Climoor which is located in Clocaenog forest, North East Wales. Photosynthesis measurements have been carried out in 2001, 2002, 2003, 2005 and 2007; photosynthesis light response curves and Net Carbon Dioxide (CO2) assimilation rate (A), versus calculated substomatal CO2 concentration (Ci), (A/Ci), responses have been measured in 2002 and 2003. In 2005, the effects of drought on photosynthesis of all three species has been measured. In 2007, the effect climate change (warming and drought) has been measured on healthy, fungal affected and herbivory affected Vaccinium myrtillus leaves. The experimental field site consists of three untreated control plots, three plots where the plant canopy air is artificially warmed during night time hours and three plots where rainfall is excluded from the plots at least during the plants growing season (March to September). Photosynthesis measurements were carried out by trained members of CEH Bangor staff.
The Climoor field experiment intends to answer questions regarding the effects of warming and drought on ecosystem processes. Plot level photosynthesis measurements are important to investigate ecosystem carbon dynamics and changes in the soil carbon under the imposed climatic treatments.

Publication date: 2016-06-07

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Supporting documentation

Format of the dataset : Comma-separated values (CSV)

Access and use conditions

This resource is made available under the terms of the Open Government Licence

You must cite: Reinsch, S.; Sowerby, A.; Emmett, B.A. (2016). Photosynthesis data for Calluna vulgaris, Vaccinium myrtillus and Empetrum nigrum at the Climoor field site in Clocaenog Forest (2001 - 2007). NERC Environmental Information Data Centre. https://doi.org/10.5285/a17b3345-b769-426d-bccd-f3c8bd88dea1

 

© Centre for Ecology & Hydrology (Natural Environment Research Council)

Where/When

Study area

Quality

Lineage
Measurements were taken with a CIRAS-2 infrared gas analyser (PP Systems, UK) between 11 am and 3 pm. The plant leaves/branches photosynthesis was measured on were sampled and dried at 65 degrees Celsius to determine the leaf mass and area. Non-flowering and non-fruiting, sun-exposed tips were used for all measurements. The tip was inserted in the cuvette and remained there until photosynthesis and transpiration rates were seen to equilibrate. Light response curves were measured at constant internal carbon dioxide (CO2) concentration by reducing the photosynthetically active light. Net CO2 assimilation rate (A), versus calculated substomatal CO2 concentration (Ci), (A/Ci), curves were measured at constant light conditions and reducing internal CO2 concentration. Photosynthesis data were measured at saturated light conditions,1000 micromole photons per square metre per second and constant near ambient CO2 concentration, 350 to 400 micromoles per mole. Measurements were downloaded to Excel spreadsheets and exported as .csv files for ingestion into the EIDC.

Authors

Reinsch, S.
Centre for Ecology & Hydrology
Sowerby, A.
Centre for Ecology & Hydrology
Emmett, B.A.
Centre for Ecology & Hydrology

Other contacts

Point Of Contact
Centre for Ecology & Hydrology
Publisher
NERC Environmental Information Data Centre
Custodian
Environmental Information Data Centre

Keywords

Topic categories
Environment
Other keywords
heather
ling
bilberry
crowberry
photosynthesis
Other keywords
Soil
Ecological Processes & Resilience
Biosphere-Atmosphere Interactions
CEH Topic
Soil
INSPIRE Theme
Environmental Monitoring Facilities
Place keywords
North East Wales
Clocaenog
Taxon keywords
Calluna vulgaris
Vaccinium myrtillus
Empetrum nigrum

Dataset identifiers

https://catalogue.ceh.ac.uk/id/a17b3345-b769-426d-bccd-f3c8bd88dea1
doi:10.5285/a17b3345-b769-426d-bccd-f3c8bd88dea1

Metadata

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Centre for Ecology & Hydrology
Last updated
2018-06-11T15:35:39