Cite this dataset as
Fincham, W.N.W., Risser, H.A., Jarvis, S.G., Schultz, C., Spurgeon, D.J., Redhead, J.W., Storkey, J., Pywell, R.F., Bullock, J.M. (2023). Input to Yield Ratio (IYR) maps for wheat farming in England, 2010-2017. NERC EDS Environmental Information Data Centre. (Dataset). https://doi.org/10.5285/dfe2a4a5-2b3a-4731-ba7f-aea7e926f1dd
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This dataset is available under the terms of the Open Government Licence 
Input to Yield Ratio (IYR) maps for wheat farming in England, 2010-2017
These maps show the Input to Yield Ratio (IYR) of wheat farming in England, calculated as the ratio of agrochemical inputs to agricultural reward as yield.
We assess the IYR at a 1km resolution for wheat grown in England over the period the period 2010-2017, considering the different agrochemicals used and their differing forms of environmental impact. We provide four mapped products: IYR for Nitrogen fertilisers, IYR for Phosphorus fertilisers, IYR for pesticide risk to earthworms, and IYR for pesticide risk to honeybees. The IYR is calculated using scaled rather than absolute values, with the maximum value in each yield and inputs dataset set as 1, so that all inputs and rewards are expressed proportionally to each other.
The research was funded under research programme NE/N018125/1 ASSIST and NE/W005050/1 AgZero+.
We assess the IYR at a 1km resolution for wheat grown in England over the period the period 2010-2017, considering the different agrochemicals used and their differing forms of environmental impact. We provide four mapped products: IYR for Nitrogen fertilisers, IYR for Phosphorus fertilisers, IYR for pesticide risk to earthworms, and IYR for pesticide risk to honeybees. The IYR is calculated using scaled rather than absolute values, with the maximum value in each yield and inputs dataset set as 1, so that all inputs and rewards are expressed proportionally to each other.
The research was funded under research programme NE/N018125/1 ASSIST and NE/W005050/1 AgZero+.
Publication date: 2023-11-11
View record as
Format
TIFF
Spatial information
- Study area
-
- Spatial representation type
- Raster
- Spatial reference system
- OSGB 1936 / British National Grid
Temporal information
- Temporal extent
-
2010-01-01 to 2010-12-31
Provenance & quality
We mapped estimated pesticide and fertiliser applications to 1km grid squares in England using data from the Fera Pesticide Utilisation Survey and the British Survey of Fertiliser Practice, respectively. Estimated pesticide applications were converted to risk values to honeybees and earthworms using information on toxicity from the Pesticide Property Database. Areas with winter wheat crop were identified from the UKCEH Land Cover® plus: Crops map. Data from the June Survey of Agricultural and Horticultural activity were used to create an average wheat yield map for England.
We then compared the fertiliser and pesticide application datasets separately to estimated yields of wheat in order to derive the Input to Yield Ratio (IYR) for four separate agrochemical inputs: Nitrogen fertilisers, Phosphorus fertilisers, pesticide exposure for earthworms, and pesticide exposure for honeybees.
We then compared the fertiliser and pesticide application datasets separately to estimated yields of wheat in order to derive the Input to Yield Ratio (IYR) for four separate agrochemical inputs: Nitrogen fertilisers, Phosphorus fertilisers, pesticide exposure for earthworms, and pesticide exposure for honeybees.
Related
Correspondence/contact details
Hannah Risser
UK Centre for Ecology & Hydrology
Lancaster Environment Centre, Library Avenue, Bailrigg
Lancaster
Lancashire
LA1 4AP
UNITED KINGDOM
enquiries@ceh.ac.uk
Lancaster
Lancashire
LA1 4AP
UNITED KINGDOM
Authors
https://orcid.org/0000-0003-0614-3937 Other contacts
- Custodian
-
NERC EDS Environmental Information Data Centreinfo@eidc.ac.uk
- Publisher
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NERC EDS Environmental Information Data Centreinfo@eidc.ac.uk
Additional metadata
- Topic categories
- biota
environment - INSPIRE theme
- Agricultural and Aquaculture Facilities
- Keywords
- Agriculture , agrochemical , AgZero+ , ASSIST , earthworm , Environmental harm , Environmental risk , environmental sustainability , Farming , fertiliser , food production (agriculture) , HoneyBees , Input to Yield Ratio , IYR , Land use , Mapping , Modelling , nitrogen , pesticide , phosphorus , Wheat , Yield
- Funding
- Natural Environment Research Council Award: NE/N018125/1
Natural Environment Research Council Award: NE/W005050/1 - Last updated
- 01 March 2024 10:49
More information about these numbers
View numbers valid from 11 November 2023 Download numbers valid from 20 June 2024 (information prior to this was not collected)