East Anglia ONE Offshore Windfarm Landscape Management PlanWork No 38 to 41
August, 2016
weed-free area around the base of each tree, min 1m diameter 1000mm. 3 Herbicide application: A foliar acting translocated or contact herbicide will be applied to emergent weeds.
4 Hand weeding: Hoe and loosen the soil throughout the planting areas, taking care to avoid disturbance of roots of planted material. Remove weeds entirely, including roots. Remove the minimum of soil and minimise disturbance to plants, bulbs and mulched surfaces. On completion, rake areas to a neat condition.
Watering
Watering is required only at planting, apply a heavy watering to the full rooting depth. If the addition of bark mulch is delayed, then apply mulch only after rain or watering. No other watering is required unless during periods of drought in establishment phase. Take into account published meteorological data on rainfall for any given period, in particular in periods of Spring drought during April, May & June. Therefore, if required, undertake a heavy watering to full rooting depth. The contractor will need to arrange for a mobile water bowser or tanker to bring the required clean water to site.
Re-firming
Trees and shrubs will be maintained in a firm position in the ground and all stakes, guards and ties will be checked regularly. Particular timing of inspections: After strong winds, frost heave and other disturbances. Replace missing rabbit guards and report any significant failures.
Failures
Towards end of first growing season a survey will be undertaken to assess successful uptake of planting and make recommendations for replacements. Any tree or shrubs planted that, within a period of 10 years after planting, is removed, dies or becomes, in the opinion of the relevant planning authority, seriously damaged or diseased must be replaced in the first available planting season with a specimen of the same species and size as that originally planted.
6.3 Hedgerow Planting (H1) 84.
The H1 native hedgerow planting (as shown in Appendix 2) has a number of aims:
85.
It will provide additional visual screening along the top of the earth bund that surrounds the perimeter of the substation.
It will provide visual screening where trees and woodland are not possible to be planted because of technical constraints.
It contributes towards creating a landscape framework within the area within which to locate the substation. It contributes to enhancing the natural environment by providing “green corridors” and additional habitat.
Details of the maintenance of the hedgerow planting are detailed in Table 6-2: Table 6-2 Maintenance of Hedgerows
Hedgerow Maintenance Pruning, Trimming and Thinning
1 If the transplants are well branched, maintenance will avoid cutting them back. Otherwise, for the first two years after planting, maintenance will concentrate on shortening the longer shoots and just tipping back shorter ones to encourage branching and dense growth without much loss in height. This trim will take place during the summer months.
2 From the third year onwards, trim the sides of the hedge, aiming for a flat-topped A-shape (in cross section) to ensure that sunlight reaches the top and bottom equally. Aim for a width of about 1m at the base, tapering upwards to the desired height (approx. 1.1.m). Ideally, not all of the hedge should be pruned in the same year, treat either in alternate sections or alternate sides of the hedge. All arising’s to be removed.
3 After 3 years’ establishment of new hedge planting, maintain hedges in accordance with the following: Where existing hedge is higher than 3.6m allow for hedge work including coppicing appropriate species, removing old growth to allow regrowth of shoots from the base.
Remove excess leaf mould, deadwood and other material from base of hedges. Replant gaps with species indicated in schedule.
Weed Control 1 Hedgerows will be kept clear of weed growth for the first 3 growing seasons; after 3 years, a herb layer can be allowed to
East Anglia ONE – EA1-CON-F-GBE-008554
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