Cumberland Plain Woodland | |
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![]() Grassy plain with scattered eucalypts | |
Ecology | |
Realm | Australasia |
Biome | Tropical and subtropical grasslands, savannas, and shrublands |
Borders | |
Geography | |
Country | Australia |
Elevation | 10–100 metres (33–328 ft) |
Coordinates | 33°50′59″S150°54′40″E / 33.84972°S 150.91111°E |
Geology | Sandstone, shale, laminite and siltstone |
Climate type | Humid subtropical climate (Cfa) |
Soil types | Clay, sand (podsol, entisols, lithosols), loam |
The Cumberland Plain Woodland, also known as Cumberland Plain Bushland [1] and Western Sydney woodland, [2] is a grassy woodland community found predominantly in Western Sydney, New South Wales, Australia, that comprises an open tree canopy, a groundcover with grasses and herbs, usually with layers of shrubs and/or small trees. [3]
Situated in the Cumberland Plain, the Cumberland Plain Woodland (CPW) is a savanna that features dry sclerophyll woodlands, grasslands and/or forests, reminiscent of Mediterranean forests. According to Office of Environment and Heritage, the community falls predominantly within the Coastal Valley Grassy Woodlands region, [4] which are part of the Grassy Woodlands formation found in the eastern corridor of New South Wales. [5]
Currently, less than 6% of the Woodlands remain in small parts distributed across the western suburbs of Sydney, totaling only around 6400 hectares. [6] Cumberland Plain Woodland was listed as an Endangered Ecological Community under the Threatened Species Conservation Act 1995 in June 1997. The greatest threats to the Cumberland Plain Woodland include land clearing for agriculture, urban sprawl and the introduction of harmful weed species. [7]
In 1877, Cumberland Plain Woodlands covered 107,000 hectares and filled around 30% of the Sydney Basin. At the time of European land exploration of Australia European settlement, the Cumberland Plain contained 1,070 km² of woodlands and forests. The westward expansion of Sydney over the plain has placed enormous pressure on the woodlands and other local ecological communities, only 6% of which remain uncleared. [8] The ecoregion contains clay soils derived from Wianamatta Shale to the west of Sydney CBD, where it receives 750–900 mm of annual rainfall.
The soils of the plain are infertile by world standards, but are not so by Australian standards. The plain is made up of eucalypt woodland with a grassy undergrowth and sclerophyllous (hard-leaved) shrub stratum, demarcating with the heath and forest communities of the sandstone plateaus that surround the plain. [9] The biotic community is mostly found on flat or hilly terrains up to about 350 m in elevation, but it may also be present on locally precipitous sites and at slightly higher elevations. Some parts of the community may have a forest structure. The Woodland features an open tree canopy, groundcover prevailed by grasses and herbs, sometimes with layers of shrubs and small trees. [10]
Spanning through the cities of Fairfield, Liverpool, Blacktown, Cumberland, Campbelltown, Camden and Penrith, with the cities of Canterbury-Bankstown, Hawkesbury, Parramatta and Wollondilly being on the peripheries, they contain approximately 2000 ha (one-fifth) of the remaining Cumberland Plain Woodland. Its range does not extend to slightly wetter Sydney Turpentine-Ironbark Forest, or high-rainfall ridges (such as Blue Gum High Forest in the upper North Shore), which are geologically on the Hornsby Plateau. [11]
Examples of the remnants can be seen at Defence Establishment Orchard Hills, Scheyville National Park, Rosford Street Reserve, Brenan Park, Central Gardens Nature Reserve, Fairfield Park Precinct, Prospect Hill, Prospect Nature Reserve, Western Sydney Regional Park, Wetherill Park Nature Reserve and Chipping Norton Lake, among other places. [12]
The Western Sydney Airport, currently under construction at Badgerys Creek, New South Wales, will require the clearing of a large area of Cumberland Plain Woodland. Environmental offsets have been announced to ensure the protection, restoration and preservation of the woodland. The Biodiversity Offset Delivery Plan was announced on 24 August 2018 and included:
The Cumberland Plain Woodland, classed under Coastal Valley Grassy Woodlands, includes these ecological communities, with some overlapping and others plainly being sub-regions of the Woodland: [15]
The vegetation of the ecoregion includes grasslands, savanna, open woodlands, and some patches of sclerophyll forest lying on a nutrient-poor alluvium that was deposited by the Nepean River from sandstone and shale bedrock in the Blue Mountains. Despite this, they support a tremendous regional biodiversity. [25]
The grassy woodland is dominated by Grey Box ( Eucalyptus moluccana ) and Forest Red Gum (E. tereticornis), with Narrow-leaved Ironbark ( Eucalyptus crebra ), Spotted Gum ( Corymbia maculata ) and Thin-leaved Stringybark ( Eucalyptus eugenioides ) occurring sporadically. The ecoregion may have an open layer of small trees that would include such species of Acacia decurrens , Acacia parramattensis , Acacia implexa and Exocarpos cupressiformis . [26] The shrub layer is mainly contains Bursaria spinosa , indigofera australis , Hardenbergia violacea , Daviesia ulicifolia , Lespedeza cuneata , Dillwynia , Dodonaea viscosa , with plenty grasses such as Kangaroo Grass ( Themeda australis ) and Weeping Meadow Grass ( Microlaena stipoides ). [27]
Eucalyptus species:
Non-eucalyptus trees:
Shrubs:
Grasses and sedge:
Bird species in the woodland include (which are mostly vulnerable and/or endangered): [28]
Mammals: [29]
In April 1788, Governor Arthur Phillip describes the land west of Parramatta: [2]
The country through which they travelled was singularly fine, level, or rising in small hills of a very pleasing and picturesque appearance. The soil excellent, except in a few small spots where it was stony. The trees growing at a distance of from 20 to 40 feet [6–12 metres] from each other, and in general entirely free from brushwood, which was confined to the stony and barren spots.
In 1818, author and settler James Atkinson describes the plain as: [2]
One immense tract of forest land extends, with little interruption, from below Windsor, on the Hawkesbury to Appin, a distance of 50 miles...Forest means land more or less furnished with timber trees, and invariably covered with grass underneath, and destitute of underwood...The whole of this tract, and indeed all the forest in this county, was thick forest land, covered with very heavy timber, chiefly iron and stringy bark, box, blue and other gums, and mahogany.
In 1819, British explorer William Wentworth describes Cumberland Plain's natural landscape between Liverpool and Nepean River: [30]
The soil changes to a thin layer of vegetable mould, resting on a stratum of yellow clay, which is again supported by a deep bed of schistus. The trees of the forest are here of the most stately dimensions. Full sized gums and iron barks, along side of which the loftiest trees in this country would appear as pigmies, with the beefwood tree, or as it is generally termed, the forest oak, which is of much humbler growth, are the usual timber.
The forest is extremely thick, but there is little or no underwood. A poor sour grass, which is too effectually sheltered from the rays of the sun, to be possessed of any nutritive and fattening properties, shoots up in the intervals. This description of country, with a few exceptions, however, which deserve not to be particularly noticed, forms another girdle of about 10 miles (16 km) in breadth: so that, generally speaking, the colony for about 16 miles (26 km) into the interior, may be said to possess a soil, which has naturally no claim to fertility, and will require all the skill and industry of its owners to render it even tolerably productive.
At this distance, however, the aspect of the country begins rapidly to improve. The forest is less thick, and the trees in general are of another description; the iron barks, yellow gums, and forest oaks disappearing, and the stringy barks, blue gums, and box trees, generally usurping their stead. When you have advanced about 4 miles (6.4 km) further into the interior, you are at length gratified with the appearance of a country truly beautiful. An endless variety of hill and dale, clothed in the most luxuriant herbage, and covered with bleating flocks and lowing herds, at length indicate that you are in regions fit to be inhabited by civilized man. The soil has no longer the stamp of barrenness. A rich loam resting on a substratum of fat red clay, several feet in depth, is found even on the tops of the highest hills, which in general do not yield in fertility to the valleys.
The timber, strange as it may appear, is of inferior size, though still of the same nature, i. e. blue gum, box, and stringy bark. There is no underwood, and the number of trees upon an acre do not upon an average exceed thirty. They are, in fact, so thin, that a person may gallop without difficulty in every direction. Coursing the kangaroo is the favourite amusement of the colonists, who generally pursue this animal at full speed on horseback, and frequently manage, notwithstanding its extraordinary swiftness, to be up at the death; so trifling are the impediments occasioned by the forest.
The greater Brisbane area of Queensland Australia, has many species of indigenous flora. This article links the flora to its geography with:
The Cumberland Plain, an IBRA biogeographic region, is a relatively flat region lying to the west of Sydney CBD in New South Wales, Australia. Cumberland Basin is the preferred physiographic and geological term for the low-lying plain of the Permian-Triassic Sydney Basin found between Sydney and the Blue Mountains, and it is a structural sub-basin of the Sydney Basin.
The Avon Wheatbelt is a bioregion in Western Australia. It has an area of 9,517,104 hectares. It is considered part of the larger Southwest Australia savanna ecoregion.
The Sydney Turpentine-Ironbark Forest (STIF) is wet sclerophyll forest community of Sydney, New South Wales, Australia, that is typically found in the Inner West and Northern region of Sydney. It is also among the three of these plant communities which have been classified as Endangered, under the New South Wales government's Threatened Species Conservation Act 1995, with only around 0.5% of its original pre-settlement range remaining.
The Eastern Australian temperate forests is a broad ecoregion of open forest on uplands starting from the east coast of New South Wales in the South Coast to southern Queensland, Australia. Although dry sclerophyll and wet sclerophyll eucalyptus forests predominate within this ecoregion, a number of distinguishable rainforest communities are present as well.
The Burrinjuck Nature Reserve is a protected nature reserve on the south west slopes of New South Wales, Australia. The 5,250-hectare (13,000-acre) reserve is located adjacent to the Burrinjuck Dam, with 5,118 hectares of the reserve located on the northern side of the reservoir, and the remaining 89 hectares located on the southern side of the reservoir to the northeast of Black Andrew Nature Reserve. It includes land formerly managed as the Burrinjuck State Forest and Burrinjuck State Recreation Area.
The Black Andrew Nature Reserve is a protected nature reserve located on the south west slopes of New South Wales, Australia. The 1,559-hectare (3,850-acre) reserve is situated on the southern shore of Burrinjuck Dam on the Murrumbidgee River, an important reservoir for the Murrumbidgee Irrigation Area.
Dichelachne crinita , commonly known as the longhair plume grass, is a type of grass found in Australia, New Zealand and islands of the Pacific Ocean. It is often seen on sandy soils near the sea as well as woodlands. The flowering panicles are open and feathery at maturity. The grass may grow up to 1.5 metres (5 ft) tall. Crinita, the specific epithet, is derived from Latin (hairy).
The Western Sydney Parklands is an urban park system and a nature reserve located in Sydney, New South Wales, Australia. The NSW government has spent around $400 million for the park. The park is governed by the NSW National Parks and Wildlife Service and is listed under the National Parks and Wildlife Act 1974. The Parklands begin in the north in the City of Blacktown, cross the City of Fairfield, and end in the City of Liverpool.
Western Sydney Regional Park is a large urban park and a nature reserve situated in Western Sydney, Australia within the suburbs of Horsley Park and Abbotsbury. A precinct of Western Sydney Parklands, a park system, and situated within the heart of the Cumberland Plain Woodland, the regional park features several picnic areas, recreational facilities, equestrian trails, and walking paths within the Australian bush.
The Cooks River/Castlereagh Ironbark Forest (CRCIF) is a scattered, dry sclerophyll, open-forest to low woodland and scrubland which occurs predominantly in the Cumberland subregion of the Sydney basin bioregion, between Castlereagh and Holsworthy, as well as around the headwaters of the Cooks River. The Cooks River Clay Plain Scrub Forest is a component of this ecological community, though both belong to a larger occurring community called the Temperate Eucalyptus fibrosa/Melaleuca decora woodland.
Prospect Nature Reserve is a nature reserve and recreational area that is situated in the western suburbs of Sydney, New South Wales, Australia, which incorporates the Prospect Reservoir, and also features picnic spots, lookouts, walking tracks and BBQ areas within the Australian bush. It is located within the Blacktown City local government area, but is also close to the boundaries of Cumberland Council and the City of Fairfield.
The ecology of Sydney, located in the state of New South Wales, Australia, is diverse for its size, where it would mainly feature biomes such as grassy woodlands or savannas and some sclerophyll forests, with some pockets of mallee shrublands, riparian forests, heathlands, and wetlands, in addition to small temperate rainforest fragments.
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The New England Peppermint Grassy Woodland is a grassy-woodland community primarily situated in the New England and Northern Tablelands regions in northern New South Wales, Australia. Named after the Eucalyptus nova-anglica, it is listed as a critically endangered ecological communities (TECs) under the Environment Protection and Biodiversity Conservation Act 1999.
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The Grey Box Reserve, or Greystanes Grey Box Reserve, is a small nature reserve situated in the suburb of Greystanes, New South Wales in Western Sydney, Australia. A remnant bushland of the Cumberland Plain Woodland, it mainly features native vegetation. The reserve is so-named because of its abundance of Eucalyptus moluccana, reflecting the pre-European cultural landscape of the area.