NERC Data Catalogue Service
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+. Full details about this dataset can be found at
https://doi.org/10.5285/dfe2a4a5-2b3a-4731-ba7f-aea7e926f1dd
Simple
- Date (Publication)
- 2023-11-11
- Identifier
- doi: / 10.5285/dfe2a4a5-2b3a-4731-ba7f-aea7e926f1dd
- Other citation details
- 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 10.5285/dfe2a4a5-2b3a-4731-ba7f-aea7e926f1dd
- GEMET - INSPIRE themes, version 1.0
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- Agricultural and Aquaculture Facilities
- GEMET - Concepts, version 4.1.3
- Keywords
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- Agriculture
- Environmental risk
- Mapping
- Land use
- Modelling
- ASSIST
- AgZero+
- Environmental harm
- Farming
- Input to Yield Ratio
- IYR
- HoneyBees
- Wheat
- Yield
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- no limitations
- Use constraints
- otherRestrictions Other restrictions
- Use constraints
- otherRestrictions Other restrictions
- Other constraints
- If you reuse this data, you should cite: 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 https://doi.org/10.5285/dfe2a4a5-2b3a-4731-ba7f-aea7e926f1dd
- Spatial representation type
- grid Grid
- Distance
- 1000 urn:ogc:def:uom:EPSG::9001
- Metadata language
- EnglishEnglish
- Character set
- utf8 UTF8
- Topic category
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- Biota
- Environment
- Begin date
- 2010-01-01
- End date
- 2010-12-31
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W
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- Unique resource identifier
- OSGB 1936 / British National Grid
- Distribution format
-
-
TIFF
()
-
TIFF
()
- OnLine resource
-
Download the data
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- OnLine resource
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Supporting information
Supporting information available to assist in re-use of this dataset
- Hierarchy level
- dataset Dataset
- Other
- dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
- 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.
- File identifier
- dfe2a4a5-2b3a-4731-ba7f-aea7e926f1dd XML
- Metadata language
- EnglishEnglish
- Character set
- ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
- Hierarchy level
- dataset Dataset
- Hierarchy level name
- dataset
- Date stamp
- 2025-11-13T16:18:00
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Point of contact
NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg
,
Lancaster
,
LA1 4AP
,
UK
https://eidc.ac.uk/
Overviews
Spatial extent
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Associated resources
Not available