<?xml version="1.0" encoding="UTF-8"?>
<mods xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.loc.gov/mods/v3" version="3.1" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
  <titleInfo>
    <title>SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINE</title>
  </titleInfo>
  <name type="personal">
    <namePart>Spletozer, Aline Gonçalves</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Silveira, Lucas Jesus da</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Lorenzon, Alexandre Simões</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Sato, Aurora Yoshiko</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Dias, Herly Carlos Teixeira</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <typeOfResource>text</typeOfResource>
  <genre authority="marc">periodical</genre>
  <genre authority="marc">abstract or summary</genre>
  <originInfo>
    <place>
      <placeTerm type="code" authority="marccountry">bl.</placeTerm>
    </place>
    <issuance>continuing</issuance>
  </originInfo>
  <language>
    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
  </language>
  <abstract>

ABSTRACT – The objective of this study was to monitor and compare runoff at 2.5 and 3.5 years of rehabilitation of a mined bauxite area with clonal planting of Eucalyptus. Seven plots were allocated for collecting runoff and precipitation was recorded with a pluviograph. The physical and environmental factors which interfere with runoff were characterized in both periods and subjected to principal component analysis (PCA) to show the most explanatory factors. The average monthly runoff percentage at 2.5 years was 0.25% (± 0.26%) of precipitation and equal (p-value&lt;0.05) to the 3.5 years (0.15 ± 0.22%) of rehabilitation. Both values were lower than the Eucalyptus plantation area without mining (0.56%) in the same region and declivity. The high vegetation cover percentage by Eucalyptus crowns and Brachiaria sp. and the high infi ltration rates were the determining factors in PCA, and may explain the statistically equal runoff values between the rehabilitation periods. The combination of good edaphic conditions and the fast coverage of the plants resulted in runoff below 1% in a rehabilitated area after bauxite mining.

Keywords: Mining; Infi ltration; Vegetal cover.</abstract>
  <abstract>

RESUMO – O objetivo deste estudo foi monitorar e comparar o escoamento superficial aos 2,5 e 3,5 anos de reabilitação de uma área minerada de bauxita com plantio clonal de eucalipto. Sete parcelas foram alocadas para coleta de escoamento superficial e a precipitação foi registrada com pluviógrafo. Os fatores físico-ambientais que interferem no escoamento superficial foram caracterizados nos dois períodos e submetidos à análise de componentes principais (ACP) para evidenciar os mais explicativos. O escoamento superficial percentual médio mensal aos 2,5 anos foi 0,25% (±0,26%) da precipitação e igual (p-valor &lt;0,05) ao de 3,5 anos (0,15 ± 0,22%) de reabilitação. Ambos os valores foram inferiores ao de área de plantio de Eucalyptus sem mineração (0,56%) na mesma região e declividade. A elevada porcentagem de cobertura de vegetação, pelas copas de Eucalyptus e pela Brachiaria sp., e as elevadas taxas de infiltração foram os fatores determinantes na ACP, e podem explicar os valores estatisticamente iguais de escoamento superficial entre os períodos de reabilitação. A combinação de boas condições edáficas e a rápida cobertura das plantas resultou em escoamento abaixo de 1% em uma área reabilitada, após a mineração de bauxita.

Palavras-Chave: Mineração; Infiltração; Cobertura vegetal.</abstract>
  <note>Publicação on-line; 46 ref.; 4 illus; Sumaries (En, Pt)</note>
  <subject>
    <topic>EUCALIPTO</topic>
  </subject>
  <subject>
    <topic>COBERTURA VEGETAL</topic>
  </subject>
  <subject>
    <topic>MINERALIZAÇÃO</topic>
  </subject>
  <subject>
    <topic>INFILTRAÇÃO</topic>
  </subject>
  <relatedItem type="host">
    <titleInfo>
      <title>Revista Árvore (Brazil)</title>
    </titleInfo>
    <originInfo>
      <publisher>Viçosa-MG Sociedade de Investigações Florestais - Universidade Federal de Viçosa. Depto. de Engenharia Florestal 1977</publisher>
    </originInfo>
    <identifier>2024-7726</identifier>
    <identifier type="issn">0100-6762</identifier>
    <identifier type="local">BR2024004825</identifier>
    <part>
      <text>v. 45 p. 1-12; (2021)</text>
    </part>
  </relatedItem>
  <identifier type="uri">https://www.scielo.br/j/rarv/a/yCyX3KLVdZTpsgqjvTtFTKR/?format=pdf&amp;lang=en</identifier>
  <location>
    <url>https://www.scielo.br/j/rarv/a/yCyX3KLVdZTpsgqjvTtFTKR/?format=pdf&amp;lang=en</url>
  </location>
  <recordInfo>
    <recordContentSource authority="marcorg">BR-BrBNA</recordContentSource>
    <recordCreationDate encoding="marc">250224</recordCreationDate>
    <recordChangeDate encoding="iso8601">20250224161838.0</recordChangeDate>
    <languageOfCataloging>
      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
    </languageOfCataloging>
  </recordInfo>
</mods>
