bauxite mining vegetation

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  • Mining and Refining – Biodiversity

    Bauxite mining companies have well established biodiversity management plans, wherein the existing biome is mapped, operational and external impacts on biodiversity are assessed and opportunities to mitigate impacts or promote increased biodiversity …

  • Paper: Restoring Jarrah Forest after Bauxite Mining in ...

    Abstract: South-western Australia is well known for its diverse and mostly endemic flora that live on some of the most P-impoverished soils in the world. One of the challenges in the restoration of these ecosystems after mining is to establish colonizing species to facilitate vegetation succession, and to establish the dominant tree species, both without compromising the diversity and ...

  • Bauxite Mining and Alumina Refining: Process Description ...

    Bauxite mining and alumina refining are the upstream operations of primary aluminum production. This review article describes the industrial processes of bauxite mining and alumina refining and outlines the physical, chemical, biological, ergonomic, and psychosocial health risks. ... Clearing of vegetation and collection of valuable topsoil ...

  • Bauxite mining in Australia

    Bauxite mining in Australia is an economically significant industry both for Australia and globally. The industry focuses on the mining of bauxite, the primary raw material for alumina and aluminium. Australia is the world''s bauxite producer, producing almost a third of global bauxite.

  • Forest restoration following surface mining disturbance ...

     · Norman MA, Koch JM, Grant CD, Morald TK, Ward SC (2006) Vegetation succession after bauxite mining in Western Australia. Rest Ecol 14:278–288. Article Google Scholar Norris CE, Quideau SA, Bhatti JS, Wasyslishen RE, MacKenzie MD (2009) Influence of fire and harvest on soil organic carbon in jack pine sites.

  • Restoration Following Bauxite Mining In Western Australia

    Tacey 1979). The bauxite is mined using front-end loaders, power shovels, or hydraulic excavators and loaded in large trucks that can carry 50 to 100 tones. Australian bauxite is considered low grade and it takes 3 to 4 kg of bauxite to produce 1 kg of alumina (Hickman et al. 1992). Blasting is sometimes done to break-up cemented-cap rocks.

  • Vegetation succession after bauxite mining in Western ...

    The objectives of this study were to (1) document vegetation changes in the first 14 years after bauxite mining; (2) assess whether the vegetation is becoming more similar to the unmined forest; and (3) gain a better understanding of successional processes. Seed treatments significantly affected 13 of the 14 measured vegetation characteristics.

  • Bauxite mining

     · VVeeggeettaattiioonn • Bauxite deposits are found within the dry sclerophylous or Jarrah forest which is the predominate vegetation type in the SW region of WA • Dry sclerophyl plants have adapted to the Mediterranean climatic conditions and the infertile soils of the region (xerophytic adaptations e.g. lignotubers, taproot systems ...

  • 1. What is bauxite mining?

    1. What is bauxite mining? Bauxite mining is a large scale, long term, bulk extraction and freight operation. Millions of tonnes of bauxite are required to supply a refinery. It involves clearing of vegetation, removal of top soil and mining of the top 12 metres of the land. After mining, the land is re-

  • Bauxite

     · Bauxite Mining It is generally extracted by open cast mining because it is almost always found near the surface. The land needs to cleared of timbers and vegetation before the mining process can proceed. The top soil is usually stored for replacement during rehabilitation. Layer under the top soil is known as overburden, on average, the ...

  • Major Mines & Projects | Weipa Operation

    Vegetation is removed from the site to be mined and scrapers strip the topsoil (which varies in depth from one to ten metres). Front-end loaders use a shallow, opencut technique to load the bauxite, which lies below the topsoil, into bottom-dump trucks that carry the ore to the dump station.

  • Bauxite Mining and Chimpanzees Population Distribution, …

    Bauxite Mining in the Guineas In most countries of West Africa, intensive mining have started during the 1960''s. Besides phosphate and diamond, bauxite has also been highly exploited. In Guinea, a partnership between the government and the private consortium Halco Mining …

  • Bauxite Mining | The Australian Aluminium Council

    The first step in producing aluminium is mining this ore. Bauxite occurs mainly in tropical and sub-tropical areas, like Africa, the Caribbean, South America and Australia. Australia is the largest producer of bauxite, with five large mines supplying around 30 per cent of global production. Bauxite mining has five steps: rehabilitation.

  • Vegetation Succession After Bauxite Mining in Western ...

    The objectives of this study were to (1) document vegetation changes in the first 14 years after bauxite mining; (2) assess whether the vegetation is becoming more similar to the unmined forest; and (3) gain a better understanding of successional processes. Seed treatments significantly affected 13 of the 14 measured vegetation characteristics.

  • (PDF) Restoring a Jarrah Forest Understorey Vegetation ...

    The Southwest of Western Australia is one of the world''s biodiversity hotspots. In the jarrah forest there are at least 300–400 plant species in vegetation that is typically mined and as many as 163 species per 0.1 ha. Hence, restoring the plant

  • Key species selection for forest restoration after bauxite ...

     · Bauxite mining has caused serious damage on local ecosystems and landscapes in the Eastern Amazon, Brazil. Considering these issues, the objectives of this study were to determine key species and their ecological characteristics that can contribute to forest restoration after bauxite mining.

  • The effect of bauxite mining on soil and dominant plant ...

    ecosystems balance. In order to measure vegetation characteristics and to study soil and plant contamination in rangelands surrounding bauxite mine, a systematic random sampling was done according to physiognomy and homogeneity of vegetation cover.

  • The Process of Mining Bauxite

     · Bauxite is a mineral that contains varying amounts of combined water and several impurities of which ferric oxide and silica are usually predominant. It is found in a belt around the equator and is generally extracted by open-cast mining. Before mining can commence the land needs to be cleared of timber and vegetation.

  • Sustainable Bauxite Mining Guidelines

     · imposing moratoria or bans on bauxite mining and shipping. To address such unsustainable practices a coalition of global and national aluminium associations and companies have developed these Guidelines. The aluminium industry''s objective is a sustainable bauxite mining industry with acceptably low social

  • Rhizobial characterization in revegetated areas after ...

     · Rhizobial characterization in revegetated areas after bauxite mining. Author links open overlay panel Wardsson Lustrino Borges a Yves Prin b Marc Ducousso b Christine Le Roux b ... ore is found at an average depth of 8 m and is covered by dense vegetation and a layer called overburden, which is composed of organic soil, nodular bauxite and ...

  • Studies On The Impact Of Bauxite Mining Activities On ...

    ground vegetation needs to be completely removed in the ''opencast'' type of mining operation practiced in bauxite mining. Large scale deforestation was observed at all bauxite mines in the study area. The vegetation adjoining the bauxite mines was also found to be affected due to …

  • The Bauxite-Alumina Industry has been a powerful actor on ...

    Bauxite Mining and Processing in Jamaica AN OVERVIEW The Bauxite-Alumina Industry has been a powerful actor on the environmental, social and economic scene in ... Removal of topsoil and vegetation as a prelude to open-cast mining increases dust, erosion, siltation and is especially hazardous in the dry season. Haulage roads

  • App Will Track Harmful Dust From Bauxite Mining in Guinea

     · The first step of bauxite mining consists of land clearing and the removal of topsoil and trees. This removal of native vegetation increases the rate at which the wind can erode soils during the dry season while also making the same land more susceptible to mudslides during the rainy season. Next, bauxite is extracted by digging, ripping, and ...

  • App Will Track Harmful Dust from Bauxite Mining in Guinea ...

     · The first step of bauxite mining consists of land clearing and the removal of topsoil and trees. This removal of native vegetation increases the rate at which the wind can erode soils during the dry season while also making the same land more susceptible to mudslides during the rainy season. Next, bauxite is extracted by digging, ripping, and ...

  • Establishment of Understorey Vegetation for Rehabilitation ...

     · The establishment of vegetation (during the first growing season) was investigated in rehabilitated bauxite pits in the northern jarrah forest of Western Australia. The effects of different fertilizer, seed applications and pre-mining floral composition were investigated.

  • ENVIRONMENT-JAMAICA: Bauxite Mining Blamed for ...

     · Bauxite mining may also have additional consequences for the island''s long-term survival. Government Geologist/Mining engineer Oral Rainford speculates that the large scale removal of vegetation, as required by the opencast method, maybe causing abnormal rainfall patterns and prolonged droughts in some areas.

  • Post Bauxite Mining Land Soil Characteristics and Its ...

     · The rehabilitation of tropical forest ecosystems disturbed by bauxite mining is the aim of an increasing number of programs in many parts of the world, including Indonesia. However, bauxite mining is an impermanent activity that has long-term negative effects on tropical forests . During the process of opencast mining, all vegetation and ...

  • Fire management implications of fuel loads and vegetation ...

    associated vegetation types was prescribed burnt in southwest Western Australia. The majority of planned burning was conducted in spring (69%) and autumn (23%, CALM, 2000). Alcoa World Alumina Australia (Alcoa) has con-ducted bauxite mining and restoration in Western Australia''s jarrah forest since 1963. The current objec-

  • NGOs refute GIADEC''s claims on safe bauxite mining in ...

     · It said GIADEC in their briefing again stated its commitment to protecting vegetation, water bodies and wildlife in any forest reserve where mining will be undertaken, and gave some examples to support their claim that bauxite has been mined in a sustainable manner in the Jarrah Forest, Western Australia.

  • App Will Track Harmful Dust from Bauxite Mining in Guinea ...

    Bauxite mining''s unhealthy effects on people, environment ...

  • Bauxite Mining and the Environment

     · The material is mainly extracted by open-cast mining, which has a variable and highly site-specific effect on the local environment. The primary ecological concerns connected to this operation are related to the clearing of vegetation, affect on local flora and fauna, and soil erosion. Table 1. Breakdown of global bauxite production in 1998.

  • (PDF) Vegetation Succession After Bauxite Mining in ...

    Vegetation Succession after Bauxite Mining plant material in the 0-to 0.3-m height interval at 14 years of age for MM and M seeded sites. Figure 3 .3Density (left) and cover (right) of native orchids, recalcitrant species, and rushes and sedges in rehabilitated and forest sites. Treatments include (a) MM seed, (b) M seed, (c) NS (control), and ...

  • Surface runoff from an area undergoing soil rehabilitation ...

     · Surface runoff from an area undergoing soil rehabilitation after bauxite mining in southeastern Brazil. Aline Gonçalves Spletozer. Corresponding Author. ... surface roughness and vegetation cover, are the factors demanding more attention during the rehabilitation stage of surface mining in order to minimize runoff. This article is protected by ...

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