a17b3345-b769-426d-bccd-f3c8bd88dea1 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 2025-11-13T16:15:51 UK GEMINI 2.3 OSGB 1936 / British National Grid Photosynthesis data for Calluna vulgaris, Vaccinium myrtillus and Empetrum nigrum at the Climoor field site in Clocaenog Forest (2001-2007) 2016-06-07 publication 2016-05-23 creation https://catalogue.ceh.ac.uk/id/a17b3345-b769-426d-bccd-f3c8bd88dea1 10.5285/a17b3345-b769-426d-bccd-f3c8bd88dea1 doi: 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 10.5285/a17b3345-b769-426d-bccd-f3c8bd88dea1 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. Full details about this dataset can be found at https://doi.org/10.5285/a17b3345-b769-426d-bccd-f3c8bd88dea1 Reinsch, S. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0003-4649-0677 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 Sowerby, A. Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Emmett, B.A. Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-2713-4389 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 NERC Environmental Information Data Centre info@eidc.ac.uk publisher NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian Reinsch, S. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk pointOfContact UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk owner unknown Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Calluna vulgaris Vaccinium myrtillus Empetrum nigrum Wikidata 2012-10-29 creation photosynthesis GEMET - Concepts, version 4.1.3 2019-01-28 creation Clocaenog GeoNames 2006-01-01 creation Soil North East Wales heather ling bilberry crowberry 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: 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 textTable English utf8 environment 2001-01-01 2007-12-31 -3.479 -3.391 53.033 53.077 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/sd/a17b3345-b769-426d-bccd-f3c8bd88dea1.zip Supporting information Supporting information available to assist in re-use of this dataset information https://data-package.ceh.ac.uk/data/a17b3345-b769-426d-bccd-f3c8bd88dea1 Download the data Download a copy of this data download 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 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.