The following data sets were utilised in the analysis. Unless otherwise stated they are available under the Open Government Licence. Value was added to the Agricultural Land Classification to generate Grade 3b which is missing from the MAFF data. Value was also added to the CROME crop maps to generate a temporal classification of all four years of the existing data series. Various other open data sets were used for cartographic purposes and these are annotated on the relevant maps.
The grid of the Terrain 50 data was used as the basic framework on which to rasterise all other data sets.
| Data Set | Source |
| National Forest Inventory | Forestry Commission, 2018 |
| Terrain 50 | Ordnance Survey |
| Agricultural Land Classification | Natural England (MAFF) |
| Priority Habitats | Natural England |
| Special Protection Areas (Birds) | Natural England |
| Special Areas of Conservation (Habitats) | Natural England |
| Ramsar Sites (Wetlands) | Natural England |
| Sites of Special Scientific Interest | Natural England |
| National Nature Reserves | Natural England |
| Local Nature Reserves | Natural England |
| Moorland Line | Rural Payments Agency (not used directly) |
| Green Spaces | Ordnance Survey |
| CROME Crop Maps | DEFRA, 2016, 2017, 2018, 2019 |
| National Parks | Natural England |
| Areas of Outstanding Natural Beauty | Natural England |
| Green Belt | Ministry of Housing, Communities and Local Government |