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Thrift Wood is a 19.4 hectare biological Site of Special Scientific Interest south-east of Bicknacre in Essex.It is managed by the Essex Wildlife Trust.
A Site of Special Scientific Interest (SSSI) in Great Britain or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland is a conservation designation denoting a protected area in the United Kingdom and Isle of Man. SSSI/ASSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in the United Kingdom are based upon them, including national nature reserves, Ramsar sites, Special Protection Areas, and Special Areas of Conservation. The acronym "SSSI" is often pronounced "triple-S I".
Bicknacre is a village in Essex, England. It is approximately 6.5 km (4.0 mi) north of South Woodham Ferrers and 9.2 km (5.7 mi) southeast of the city of Chelmsford. The village is in the borough of Chelmsford and in the parliamentary constituency of Maldon & East Chelmsford. It has a population of approximately 4,500 people.
Essex is a county in the south-east of England, north-east of London. One of the home counties, it borders Suffolk and Cambridgeshire to the north, Hertfordshire to the west, Kent across the estuary of the River Thames to the south, and London to the south-west. The county town is Chelmsford, the only city in the county. For government statistical purposes Essex is placed in the East of England region.
The site is an ancient semi-natural wood on acid soil. It is of two types, both unusual habitats, pedunculate oak/hornbeam and sessile oak/hornbeam. Wild service trees and elders are found in the shrub layer, and a pond has a raised sphagnum bog. Twenty species of butterfly have been recorded.
Hornbeams are hardwood trees in the flowering plant genus Carpinus in the birch family Betulaceae. The 30–40 species occur across much of the temperate regions of the Northern Hemisphere.
Sambucus nigra is a species complex of flowering plants in the family Adoxaceae native to most of Europe and North America. Common names include elder, elderberry, black elder, European elder, European elderberry and European black elderberry. It grows in a variety of conditions including both wet and dry fertile soils, primarily in sunny locations.
Sphagnum is a genus of approximately 380 accepted species of mosses, commonly known as "peat moss". Accumulations of Sphagnum can store water, since both living and dead plants can hold large quantities of water inside their cells; plants may hold 16–26 times as much water as their dry weight, depending on the species. The empty cells help retain water in drier conditions. Hence, as sphagnum moss grows, it can slowly spread into drier conditions, forming larger mires, both raised bogs and blanket bogs. These peat accumulations then provide habitat for a wide array of peatland plants, including sedges and ericaceous shrubs, as well as orchids and carnivorous plants. Sphagnum and the peat formed from it do not decay readily because of the phenolic compounds embedded in the moss's cell walls. In addition, bogs, like all wetlands, develop anaerobic soil conditions, which produces slower anaerobic decay rather than aerobic microbial action. Peat moss can also acidify its surroundings by taking up cations, such as calcium and magnesium, and releasing hydrogen ions. Under the right conditions, peat can accumulate to a depth of many meters. Different species of Sphagnum have different tolerance limits for flooding and pH, so any one peatland may have a number of different Sphagnum species.
There is access from Main Road.
The Essex Wildlife Trust (EWT) is one of 47 wildlife trusts which cover the United Kingdom. The EWT was founded in 1959, and it describes itself as Essex's leading conservation charity, which aims to protect wildlife for the future and the people of the county. As of January 2017, it has over 34,000 members and runs 87 nature reserves, 2 nature parks and 11 visitor centres.
Roding Valley Meadows is an 18.9 hectare biological Site of Special Scientific Interest in Buckhurst Hill in Essex. It is part of a 65.2 hectare Local Nature Reserve with the same name, which is owned by Epping Forest District Council and Grange Farm Trust, and managed by the Essex Wildlife Trust.
The Crouch and Roach Estuaries are a 1729 hectare biological Site of Special Scientific Interest (SSSI) at the mouth of the Crouch and Roach rivers in Essex. The Crouch part of the SSSI stretches from near Battlesbridge to Foulness Island, and the Roach from Rochford to the junction with the Crouch. Part of the site is in the Mid-Essex Coast Special Protection Area under the EC Directive on the Conservation of Wild Birds, and a Ramsar wetland site of international importance. It is also part of the Essex Estuaries Special Area of Conservation. An area of 65 hectares is managed by the Essex Wildlife Trust as the Lion Creek and Lower Raypits nature reserve and 8 hectares at Woodham Fen, both of which are managed by the Essex Wildlife Trust. A small area is also a geological SSSI, The Cliff, Burnham-on-Crouch.
Woodham Walter Common SSSI is an 80 hectare biological Site of Special Scientific Interest (SSSI) in Danbury in Essex. The site includes six nature reserves within the Danbury Ridge Nature Reserves, managed by the Essex Wildlife Trust. These are Woodham Walter Common itself, Birch Wood, Pheasanthouse Wood, Poors' Piece, Scrubs Wood and a small area in Pheasanthouse Farm. The largest part of the SSSI is the 32.3 hectare Woodham Walter Common, which is managed by the Wildlife Trust on behalf of Maldon District Council and Woodham Walter Parish Council.
Danbury Ridge Nature Reserves are a group of nature reserves totalling 101 hectares near Danbury in Essex. They are managed by the Essex Wildlife Trust, and most of them are in Sites of Special Scientific Interest (SSSIs). Two areas, the Backwarden and Hitchcock's Meadow, are part of Danbury Common SSSI, and Woodham Walter Common, Birch Wood, Pheasanthouse Wood, Poors Piece, Scrubs Wood, and a small area in Pheasanthouse Farm, are part of Woodham Walter Common SSSI.
Great Wood and Dodd's Grove is a 36.8 hectare biological Site of Special Scientific Interest in Leigh-on-Sea in Essex. It is also a Local Nature Reserve called Belfairs. Essex Wildlife Trust runs the Belfairs Woodland Centre and manages the site together with Southend-on-Sea Borough Council.
Quendon Wood is a 32.1 hectare biological Site of Special Scientific Interest in Quendon in Essex.
Belcher's and Broadfield Woods is a 14.4 hectare biological Site of Special Scientific Interest between Halstead and Braintree in Essex. It is managed by the Essex Wildlife Trust as the Brookes Nature Reserve.
West Wood is a 23.6 hectare biological Site of Special Scientific Interest in Little Sampford, north of Thaxted in northwestern Essex. It is owned and managed by the Essex Wildlife Trust.
Crowsheath Wood is an 8.1 hectare nature reserve in Downham, between Billericay and South Woodham Ferrers in Essex. It is managed by the Essex Wildlife Trust.
Blue House Farm is a 242.8 hectare nature reserve and farm in North Fambridge, on the north bank of the River Crouch between Burnham-on-Crouch and South Woodham Ferrers in Essex. It is managed by the Essex Wildlife Trust. Most of the site is in of the Crouch and Roach Estuaries Site of Special Scientific Interest.
The Coppice, Kelvedon Hatch is a 9.4 hectare biological Site of Special Scientific Interest in Kelvedon Hatch in Essex.
Harlow Woods is a 47.1 hectare biological Site of Special Scientific Interest in Harlow in Essex. It is composed of three woods, Hospital Wood Risden's Wood and Parndon Wood. They are owned and maintained by Harlow District Council, and they are part of the slightly larger Parndon Woods and Common Local Nature Reserve.
High Wood, Dunmow is a 41.5 hectare biological Site of Special Scientific Interest in Great Dunmow in Essex. The local planning authority is Uttlesford District Council.
Copperas Wood is a 13.8 hectare nature reserve between Ramsey and Wrabness in Essex. It is owned and managed by the Essex Wildlife Trust, and is part of the Stour and Copperas Woods, Ramsey Site of Special Scientific Interest.
Thorndon Park is a 141.4 hectare biological Site of Special Scientific Interest in Brentwood in Essex. Part of it is run by Essex County Council as Thorndon Country Park, and the Essex Wildlife Trust manages its visitor centre.
Tiptree Heath Nature Reserve is a 25 hectare biological Site of Special Scientific Interest south-west of Tiptree in Essex. It is managed by the Essex Wildlife Trust together with the Friends of Tiptree Heath.
Weeleyhall Wood is a 31 hectare biological Site of Special Scientific Interest north of Clacton-on-Sea in Essex. It is managed by the Essex Wildlife Trust.
Woodham Fen is an 8.1 hectare nature reserve in South Woodham Ferrers in Essex. It is managed by the Essex Wildlife Trust. It is part of the Crouch and Roach Estuaries Site of Special Scientific Interest.
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