< Plant Community
Plant Community/UK Phase 1 Habitat Classification
This is a tentative draft of how to tag various Phase 1 habitat classes. Further reference in the JNCC Manual].
Although designed for the UK it may be suitable in other Boreo-temperate areas of the Northern Hemisphere. As it's name implies this is designed to be a starting point for more detailed classification.
Note that the names of classes are taken from the official manual and are somewhat unwieldy. Therefore the ref tag is the most important one to use.
| Category | Phase1 Ref | Phase1 Name | Current likely OSM Tagging | Extended tagging for phytosociology | Example(s) | Remarks | |
|---|---|---|---|---|---|---|---|
| Woodland & Scrub | A1.1 | Semi-natural Broad-leaved woodland | natural=wood and/or landuse=forest with leaf_type=broadleaved |
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See the manual for the rules determining whether woodland is semi-natural | ||
| Woodland & Scrub | A1.2 | Broad-leaved woodland - plantation | natural=wood and/or landuse=forest with leaf_type=broadleaved and plantation=yes |
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See the manual for the rules determining whether woodland is semi-natural | ||
| Woodland & Scrub | A2.1 | Semi-natural Coniferous woodland | natural=wood and/or landuse=forest with leaf_type=needleleaved |
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A rare type as there are few natural wood. See the manual for the rules determining whether woodland is semi-natural | ||
| Woodland & Scrub | A2.2 | Coniferous woodland - plantation | plantation|yes}} is implied |
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This is the standard combination for commercial forestry. See the manual for the rules determining whether woodland is semi-natural | ||
| Woodland & Scrub | A2.1 | Scrub - dense/continuous | natural=scrub | Specific examples of scrub: Hawthorn, Blackthorn, Gorse, Broom, Basket Willows (wllow carr), Montane Willows, Brambles and Wild Roses. | |||
| Woodland & Scrub | A2.2 | Scrub - scattered | natural=scrub | ||||
| Woodland & Scrub | A3.1 | Broadleaved Parkland/scattered trees | leisure=park | ||||
| Woodland & Scrub | A3.2 | Coniferous Parkland/scattered trees | leisure=park | ||||
| Woodland & Scrub | A3.3 | Mixed Parkland/scattered trees | leisure=park | ||||
| Grassland and marsh | B1.1 | Acid grassland - unimproved | Many upland areas tagged natural=heath will be this, but there is not a straightforward tag in OSM | ||||
| Grassland and marsh | B1.2 | Acid grassland - semi-improved | |||||
| Grassland and marsh | B2 | Neutral grassland | |||||
| Grassland and marsh | B2.1 | Neutral grassland - unimproved | This is a RARE category. For instance there are 28 ha left in Nottinghamshire. Corresponds generally to NVC MG4 and MG5 grassland. | ||||
| Grassland and marsh | B2.2 | Neutral grassland - semi-improved | |||||
| Grassland and marsh | B3 | Calcareous grassland | |||||
| Grassland and marsh | B3.1 | Calcareous grassland - unimproved | |||||
| Grassland and marsh | B3.2 | Calcareous grassland - semi-improved | |||||
| Grassland and marsh | B4 | Improved grassland | crop|grass}}. | ||||
| Grassland and marsh | B5 | Marsh/marshy grassland | No specific correspondences, as a range of combinations from natural=wetland, wetland=marsh through landuse=pasture to landuse=farmland and landuse=grass may all fall into B5. |
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tba | ||
| Grassland and marsh | B6 | Poor semi-improved grassland | No specific correspondences |
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| Tall herb and fen | C1.1 | Bracken | no obvious tags in use, but natural=bracken may be suitable |
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406561283 406561283 as natural=heath |
Bracken apparently covers about 1% of the Earth's landarea, it should therefore be mapped! | |
| Tall herb and fen | C1.2 | Bracken | no obvious tags in use, but natural=bracken may be suitable |
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| Tall herb and fen | C2 | Upland species-rich ledges | no obvious tags in use |
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| Tall herb and fen | C3.1 | Other tall herb and fern - ruderal | No obvious tags in use |
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The manual mentions specific stands of certain plants: Japanese Knotweed and Rosebay Willowherb. | ||
| Tall herb and fen | C3.1 | Other tall herb and fern - non-ruderal | No obvious tags in use |
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| Heathland | D1.1 | Dry dwarf shrub heath - acid | natural=heath |
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| Heathland | D1.2 | Dry dwarf shrub heath - basic | natural=heath |
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| Heathland | D2 | Wet dwarf shrub heath | natural=heath |
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| Heathland | D3 | Lichen/bryophyte heath | natural=heath |
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| Heathland | D4 | Montane heath/dwarf herb | natural=heath |
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| Heathland | D5 | Dry heath/acid grassland | natural=heath |
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This is a mosaic group where grassland and heath are in patches not worth mapping on their own. Common in upland areas. | ||
| Heathland | D6 | Wet heath/acid grassland | natural=heath |
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This is a mosaic group where grassland and heath are in patches not worth mapping on their own. Common in upland areas. | ||
| Swamp, marginal and inundation | F1 | Swamp | natural=wetland with one of wetland=reedbed |
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Includes a variety of tall herb wetland vegetation types, such as reedbeds, and those dominated by sedges (Carex) and reed-mace (Typha). DO NOT CONFUSE with natural=wetland with wetland=swamp which refers to wetlands with a substantial woody (tree & shrub) component. | ||
| Coastland | H6.7 | Dune Scrub | natural=scrub |
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Any scrub on consolidated or flattened dunes (but not the low growing gorse species (<1 m tall) which count as heath. The most representative form is Sea Buckthorn scrub seen in abundance at Spurn & Gibraltar Points | ||
| Miscellaneous | J1.1 | Cultivated Land | landuse=farmland with crop=* |
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| Miscellaneous | J3.4 | Caravan Site | tourism=caravan_site |
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Implicit Phase 1 values
Certain tags or tag combinations will naturally imply a Phase 1 classification. A provisional Phase 1 map may therefore be constructed without explict tags. The tabulation below groups them by key:
| Tag (or tag combo) | Phase1 Ref | Remarks |
|---|---|---|
| landuse=forest | A1 | Really needs additional tags |
| landuse=quarry | I2.1 | See also Spoil Heaps (I2.2) |
| landuse=recreation_ground | J1.2 | |
| leisure=park | A3 | Presumption is that there are scattered trees |
| leisure=pitch | J1.2 | Only if not on some other landuse |
| leisure=recreation_ground | J1.2 | |
| landuse=meadow | B4 | By far and away the commonest phase 1 category. Other tags needed to place it elsewhere |
| natural=wood | A1 | Really needs additional tags |
| natural=scrub | A2 | No specific tags to separate on density |
| natural=water | G | Providing no tidal=yes tag |
| natural=water with one of water=pond or water=lake or water=reservoir | G1 | Providing no tidal=yes tag |
| natural=wetland wetland=reedbed | F1 | |
| natural=wetland wetland=bog | E1 | |
| tourism=caravan_site | J3.4 | |
| waterway=riverbank | G2 | check tidal tag |
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