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Arid Recovery Reserve
Roxby Downs is a town and locality in the Australian state of South Australia about north of the state capital of Adelaide. The town has a highly transient population of around 4,000 people. Roxby Downs has many leisure and community facilities including swimming, cinema, cultural precinct, community radio, shopping centre, schools, TAFE, cafes and sporting clubs and facilities. There are just two neighbouring towns in the area: Andamooka, an opal mining town about 30 km to the east, and Woomera, 84 km south of Roxby Downs. Andamooka people call the town home, and many are of European background since the days of early opal mining. History The town of Roxby Downs was built in 1986-88 (land survey commenced in November 1986) with the aim of servicing the Olympic Dam mine and processing plant, located north of the site of the town. Roxby Downs was officially opened on 5 November 1988. The opening was celebrated with a "town party" held on the main oval and spon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adelaide City Centre
Adelaide city centre () is the inner city locality of Adelaide, Greater Adelaide, the capital city of South Australia. It is known by locals simply as "the City" or "Town" to distinguish it from Greater Adelaide and from the City of Adelaide local government area (which also includes North Adelaide and from the Adelaide Park Lands, Park Lands around the whole city centre). The residential population was 18,202 in the , with a local worker population of 130,404. Adelaide city centre was planned in 1837 on a Greenfield land, greenfield site following a Grid plan, grid layout, with streets running at right angles to each other. It covers an area of and is surrounded by of park lands.The area of the park lands quoted is based, in the absence of an official boundary between the City and North Adelaide, on an east–west line past the front entrance of Adelaide Oval. Within the city are five parks: Victoria Square, Adelaide, Victoria Square in the exact centre and four other, smal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schools
A school is the educational institution (and, in the case of in-person learning, the building) designed to provide learning environments for the teaching of students, usually under the direction of teachers. Most countries have systems of formal education, which is sometimes compulsory. In these systems, students progress through a series of schools that can be built and operated by both government and private organization. The names for these schools vary by country (discussed in the '' Regional terms'' section below) but generally include primary school for young children and secondary school for teenagers who have completed primary education. An institution where higher education is taught is commonly called a university college or university. In addition to these core schools, students in a given country may also attend schools before and after primary (elementary in the U.S.) and secondary (middle school in the U.S.) education. Kindergarten or preschool provide some s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annual Plant
An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies. Globally, 6% of all plant species and 15% of herbaceous plants (excluding trees and shrubs) are annuals. The annual life cycle has independently emerged in over 120 different plant families throughout the entire angiosperm phylogeny. The evolutionary and ecological drivers of the annual life cycle Traditionally, there has been a prevailing assumption that annuals have evolved from perennial ancestors. However, recent research challenges this notion, revealing instances where perennials have evolved from annual ancestors. Intriguingly, models propose that transition rates from an annual to a perennial life cycle are twice as fast as the reverse transition. The life-history theory posits that annual plants are favored when adult mortality is higher than seedling (or seed) mortality, i.e., annuals will dominate environments with dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pastoralism
Pastoralism is a form of animal husbandry where domesticated animals (known as "livestock") are released onto large vegetated outdoor lands (pastures) for grazing, historically by nomadic people who moved around with their herds. The animal species involved include cattle, camels, goats, yaks, llamas, reindeer, horses, and sheep. Pastoralism occurs in many variations throughout the world, generally where environmentally effected characteristics such as aridity, poor soils, cold or hot temperatures, and lack of water make crop-growing difficult or impossible. Operating in more extreme environments with more marginal lands means that pastoral communities are very vulnerable to the effects of global warming. Pastoralism remains a way of life in many geographic areas, including Africa, the Tibetan plateau, the Eurasian steppes, the Andes, Patagonia, the Pampas, Australia and many other places. , between 200 million and 500 million people globally practiced pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overgrazed
Overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. It can be caused by either livestock in poorly managed agricultural applications, game reserves, or nature reserves. It can also be caused by immobile, travel restricted populations of native or non-native wild animals. Overgrazing reduces the usefulness, productivity and biodiversity of the land and is one cause of desertification and erosion. Overgrazing is also seen as a cause of the spread of invasive species of non-native plants and of weeds. Degrading land, emissions from animal agriculture and reducing the biomass in a ecosystem contribute directly to climate change between grazing events. Successful planned grazing strategies have been in support of the American bison of the Great Plains, or migratory wildebeest of the African savannas, or by holistic planned grazing. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electoral District Of Giles
Giles is a single-member electoral district for the South Australian House of Assembly. Named after explorer Ernest Giles, it is the largest electorate in the state by area, covering of South Australian outback. Its main population centre is the industrial city of Whyalla on the far south-east border of the seat which represents half of the electorate's voters. The electorate covers significant areas of pastoral leases and Pitjantjatjara Aboriginal land stretching to the Western Australian and Northern Territory borders, taking in the remote towns of Andamooka, Coober Pedy, Ernabella, Fregon, Marla, Mimili, Mintabie, Oodnadatta, and Tarcoola. Giles also has a far north mobile booth. Giles was created at the 1991 electoral redistribution to replace the abolished electoral district of Whyalla. It covered an area that had traditionally been one of the few country areas where Labor consistently did well. Support for the party was particularly strong in the city of Whya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Division Of Grey
The Division of Grey is an Divisions of the Australian House of Representatives, Australian electoral division in South Australia. The division was one of the seven established when the former Division of South Australia was redistributed on 2 October 1903 and is named for George Grey, Sir George Grey, who was Governor of South Australia from 1841 to 1845 (and later Prime Minister of New Zealand). Geography The division covers the vast northern outback of South Australia. Highlighting South Australia's status as the most centralised state in Australia, Grey spans , over 92 percent of the state. The borders of the electorate include Western Australia, the Northern Territory, Queensland and New South Wales borders, in addition to much of the southern coastal border. The electorate spans to Marion Bay, South Australia, Marion Bay and Eudunda in the south. The main population centres of the electorate include Ceduna, South Australia, Ceduna, Port Lincoln, Whyalla, Port Augusta, Sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Artesian Basin
The Great Artesian Basin (GAB) of Australia is the largest and deepest artesian basin in the world, extending over . Measured water temperatures range from . The basin provides the only source of fresh water through much of inland Australia. The basin underlies 22% of the Australian continent, including most of Queensland, the south-east corner of the Northern Territory, north-eastern South Australia, and northern New South Wales. It is deep in places and is estimated to contain of groundwater. The Great Artesian Basin Coordinating Committee (GABCC) GABCC website coordinates activity between federal, state/territory and local levels of government and community organisations. Physiography This area is one of the distinct physiographic provinces of the larger[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woomera, South Australia
Woomera, unofficially Woomera village, is the domestic area of RAAF Base Woomera. Woomera village has always been a Defence-owned and operated facility. The village is located on the traditional lands of the Kokatha people in the Far North region of South Australia, but is on Commonwealth-owned land and within the area designated as the Woomera Prohibited Area (WPA). The village is approximately north of Adelaide. In common usage, "Woomera" refers to the wider RAAF Woomera Range Complex (WRC), a large Australian Defence Force aerospace and systems testing range (the Woomera Test Range (WTR)) covering an area of approximately and is operated by the Royal Australian Air Force. Woomera "village" is part of RAAF Base Woomera which, along with the Woomera Test Range (WTR), forms the larger entity known as the Woomera Range Complex (WRC), promulgated by Chief of Air Force (CAF) in June 2014. As at the the Woomera Village had a population of 146, and its usual population varies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining
Mining is the Resource extraction, extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agriculture, agricultural processes, or feasibly created Chemical synthesis, artificially in a laboratory or factory. Ores recovered by mining include Metal#Extraction, metals, coal, oil shale, gemstones, limestone, chalk mining, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even fossil water, water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final mine reclamation, reclamation or restoration of the land after the mine is closed. Mining ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opal
Opal is a hydrated amorphous form of silicon dioxide, silica (SiO2·''n''H2O); its water content may range from 3% to 21% by weight, but is usually between 6% and 10%. Due to the amorphous (chemical) physical structure, it is classified as a mineraloid, unlike crystalline forms of silica, which are considered minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock (geology), rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. The name ''opal'' is believed to be derived from the Sanskrit word (), which means 'jewel', and later the Greek derivative (). There are two broad classes of opal: precious and common. Precious opal displays play-of-color (iridescence); common opal does not. Play-of-color is defined as "a pseudo chromatic optical effect resulting in flashes of colored light from certain minerals, as they are turned in white light." The internal structure of precious opal cause ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andamooka, South Australia
Andamooka is a town approximately 600 km north of Adelaide in the Far North of South Australia on the lands of the Kokatha people. Andamooka is the largest town administered by the Outback Communities Authority instead of a local government area. It is in the state electoral district of Giles and the federal Division of Grey. History Establishment of pastoral activity Andamooka lies on Kokatha traditional land.Proving 'the knockers' wrong: Kokotha people bring new life to run-down cattle stations in northern SA '' |
