bauxite land reclamation in brazil

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Ant recolonization of rehabilitated bauxite mines at

Jul 10, 2009· Ant species were sampled in three rainforest and 10 rehabilitated bauxite mine plots at Trombetas, in the tropical monsoonal region of Brazil. Rehabilitation ranged from 0 to 11 years in age and was mainly performed by planting mixed native forest tree species. One plot supported single-species blocks of Australian Eucalyptus and Acacia species

Ant Recolonisation of Rehabilitated Bauxite Mines of Pocos

KEY WORDS: ants, Australia, Brazil, bauxite mining, climate, Formicidae, land rehabilitation. INTRODUCTION The consideration of animals in land reclamation programmes can bring about many useftil benefits. Soil fertility and structure may be impeded if appropriate soil animals are not present, and the nature of plant succession is moulded by

Mining and Refining Brazil

Trombetas, Brazil Mineração Rio do Norte. MRN started production in 1979. The mine is within the borders of the national forest of Saracá-Taquera which is a part of the Amazon rain forest. Before starting extraction of bauxite, the existing vegetation is cleared. Any clearance must be subject to approval from the federal environment

Suitability evaluation for land reclamation in mining area

Dec 01, 2011· The map of the suitability evaluation results of land reclamation in the Gaoqiao bauxite mine is shown in Fig. 2. The above suitability evaluation results are explained as follows: 1) The open-pit slope is unsuitable for planting trees and shrubs, therefore, two kinds of reclamation measures, namely planting vines at the base of slope and

Jamaica will Maintain Enviable Position in Bauxite Land

Jamaica will Maintain Enviable Position in Bauxite Land Reclamation Techniques Lyew-Ayee Related Executive Director of the Jamaica Bauxite Institute, Parris Lyew-Ayee, has said that Jamaica’s all encompassing approach in pre and post mining bauxite operations was a model for many developing countries with a similarly thriving bauxite sector.

Noranda Bauxite Praised For Land Reclamation Efforts In

Jamaica’s Mining Minister Robert Montague lauded Noranda Bauxite for its responsible land reclamation efforts last week, noting the success the firm has had in refurbishing former mining sites for use as agricultural and water storage lands. Commenting at Noranda Bauxite’s Agriculture Education Industry Exposition in St. Ann on Thursday, Montague reiterated his government’s commitment to

Restoration of Forested Lands under Bauxite Mining with

Nov 11, 2020· The contribution of bauxite mining to deforestation and land degradation in Guyana is unknown, and this state of affairs is similar to other bauxite-producing countries in South America. Besides this, the numbers and area size of closed and active bauxite mines, the age of bauxite storage areas (overburden dumps), and their status, among other

Bauxite Residue Reclamation Projects Investor Presentation

Bauxite Reclamation $ Million 16.5 Annual Revenue Smelter Operating Cost $ Million 146.7 Bauxite $ Million Freight Cost $ Million 4.0 Full return of current waste ponds to productive land. 19 Bauxite Residue Reclamation Project 6. Environmental Benefits . Minerals & Energy

JAMAICA: Dust, stench and claim of impotence: Pollution

Before mined-out land can be resettled, bauxite companies must adhere to land reclamation regulations set out by the JBI. Deep craters which are left after mining is completed must be refilled. Bauxite companies are also required to restore the land and replace at least six inches of top soil in mined-out areas.

Suitability evaluation for land reclamation in mining area

Dec 01, 2011· The map of the suitability evaluation results of land reclamation in the Gaoqiao bauxite mine is shown in Fig. 2. The above suitability evaluation results are explained as follows: 1) The open-pit slope is unsuitable for planting trees and shrubs, therefore, two kinds of reclamation measures, namely planting vines at the base of slope and

Ant Recolonisation of Rehabilitated Bauxite Mines of Pocos

KEY WORDS: ants, Australia, Brazil, bauxite mining, climate, Formicidae, land rehabilitation. INTRODUCTION The consideration of animals in land reclamation programmes can bring about many useftil benefits. Soil fertility and structure may be impeded if appropriate soil animals are not present, and the nature of plant succession is moulded by

Land Reclamation in Brazilian Amazônia: A chronosequence

Although reclamation techniques for forest ecosystems recovery have been developed over the past decades, there is still a great difficulty in the establishment on environment assessment, especially when compared to the non-disturbed ecosystems. This work evaluated the results and limitations on cassiterite-mined areas in reclamation, at Brazilian Amazônia. Floristic variables from 29 plots

Post Bauxite Mining Land Soil Characteristics and Its

The remediation of opencast bauxite mines in the natural forests of Indonesia is difficult. We have investigated and contrasted the chemical characteristics of soils from natural forests and mining sites and their effects on plant growth. The soil pH, total carbon (C), nitrogen (N) and available phosphorus (P) concentrations, cation exchange capacity, C/N ratio, and exchangeable K, Na, Mg, Ca

Practices for rehabilitating bauxite‐mined areas and an

Jan 22, 2019· Coffee bean yield was highest in plots with L or G + L receiving PL or PL + CF. We conclude that organic amendments and intercrops are suitable approaches to recover soil following bauxite mining, and soil indicators can be integrated to properly monitor the land reclamation progress.

Mining and Refining Process

Bauxite is generally extracted by open cast mining, being almost always found near the surface, with processes that vary slightly depending on the location. Before mining can commence the land needs to be cleared of timber and vegetation.

JAMAICA: Dust, stench and claim of impotence: Pollution

Before mined-out land can be resettled, bauxite companies must adhere to land reclamation regulations set out by the JBI. Deep craters which are left after mining is completed must be refilled. Bauxite companies are also required to restore the land and replace at least six inches of top soil in mined-out areas.

(PDF) A case study of ecological restoration at the Xiaoyi

Land Administration, it is estimated that at present, the rate of land reclamation is 10%. But China still has a long way to go, compared with reclamation rates as high

Bauxite Residue Reclamation Projects Investor Presentation

Bauxite Reclamation $ Million 16.5 Annual Revenue Smelter Operating Cost $ Million 146.7 Bauxite $ Million Freight Cost $ Million 4.0 Full return of current waste ponds to productive land. 19 Bauxite Residue Reclamation Project 6. Environmental Benefits . Minerals & Energy

Land Reclamation Scientific.Net

Abstract: Suitability evaluation is the important basis for scientifically determining the direction of land reclamation. This paper deeply elaborates the goal of land reclamation and the principles of suitability evaluation. land reclamation direction of the project area is initially determines to be cultivated land, forest land, grassland and garden plot based on region land-use planning and

Restoring tropical forests on lands mined for bauxite

The Trombetas bauxite mine is located in the Saraca´-Taquera National Forest on an upland mesa (Saraca´ plateau) at an elevation of 180 m, 65 km northwest of the town of Oriximina´and30 km south of the Trombetas River in western Para´ State, Brazil (1°40%S, 56°27%W; Fig. 1). Mean an-nual rainfall at Porto Trombetas (1970–1994) is

Bauxite residue uses: successes, failures and

16 Scale of the problem • Alumina production in 2015 was 115 million t/y 95% via Bayer process • Bauxite residue produced per tonne of alumina –range 0.5 to 4 t/t alumina • Annual arising –over 155 million tonnes and growing • Number of active alumina refineries –about 80 • Number of closed residue disposal sites –over 50 • All disposal in estuaries and the sea ceased at

Noranda Bauxite Praised For Land Reclamation Efforts In

Aluminium Insider reported that Jamaica’s Mining Minister Mr Robert Montague lauded Noranda Bauxite for its responsible land reclamation efforts last week, noting the success the firm has had in

Bauxite industry has left legacy of hydrologic and

Dec 31, 2019· Bauxite industry has left legacy of hydrologic and ecological disruption in Linden, responsible agencies must take action The lack of concerted mine reclamation and land

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