This content requires Adobe Flash Player version
or later.
Either you do not have Adobe Flash Player installed,
or your version is too old,
or there is a problem with your Flash installation and we were unable to detect it.
Detailed surveys carried out along the Onshore Cable Route are covered in more detail in East Anglia Offshore Windfarm: Phase 2 Botanical report (RSK, 2012).
4.2.11 Arable Farmland
Arable farmland is a common habitat throughout the UK. These habitats are easily re- creatable and so can be considered to have negligible ecological value. Arable field margins are a UKBAP and LBAP priority habitat. Field margins along the Onshore Cable Route were improved and species-poor.
4.2.12 Ruderal Vegetation
Ruderal vegetation, such as that found within the survey area is common and ubiquitous throughout the UK. These habitats will quickly re-colonise in unmanaged areas and so can be considered to have neglibible ecological value.
4.2.13 Plant species Red list Species
Two species listed as ‘Near Threatened’ in Cheffing & Farrell (2005). The classification of ‘Near Threatened’ relates to species that are close becoming classified as threatened taxa. In the context of the county of Suffolk these taxa are well distributed and typically occur on disturbed soils. Consequently the Onshore Cable Route is unlikely to have an adverse effect on the species as a whole
• Filago vulgaris (Common Cudweed) is species of disturbed acidic soils and occurs throughout the Onshore Cable Route on waste ground.
• Potentilla argentea (Hoary Cinquefoil) occurs occasionally in the grasslands covered by Target Notes 139, 189b, 194 and 304. It is classified as being locally frequent by Simpson (1982).
Nationally Scarce
Three species are listed as ‘Nationally Scarce’ i.e. found in less than 100 ten-kilometre grid-squares nationally in Stewart et al. (1994).
• Crassula tillaea (Mossy Stonecrop) was found in Target Notes 197, 194, 201, 374 and 379. It is concentrated on compacted disturbed soils on sands around Woodbridge.
• Sarcocornia perennis (Perennial Glasswort) occurs in both areas of saltmarsh along the River Deben Target Notes 216 and 315.
• Trifolium suffocatum (Suffocated Clover) was found abundantly at Target Note 191.
Both of these species are typical of disturbed sandy soils. Crassula tillaea (Mossy Stonecrop) was commonly observed in suitable habitat around Woodbridge i.e. most farm tracks and abandoned fields and waste areas. Trifolium suffocatum (Suffocated Clover) was restricted to areas around Target Note 191. It is possible that these species may benefit from the disturbed soils that would result from the Onshore Cable
East Anglia Offshore Wind Limited Phase 1 Habitat Report 854188 (Rev01)