SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINE
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...
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| Format: | Article |
| Language: | English |
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Sociedade de Investigações Florestais
2021-05-01
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| Series: | Revista Árvore |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100205&tlng=en |
| _version_ | 1819284808738537472 |
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| author | Aline Gonçalves Spletozer Lucas Jesus da Silveira Alexandre Simões Lorenzon Aurora Yoshiko Sato Herly Carlos Teixeira Dias |
| author_facet | Aline Gonçalves Spletozer Lucas Jesus da Silveira Alexandre Simões Lorenzon Aurora Yoshiko Sato Herly Carlos Teixeira Dias |
| author_sort | Aline Gonçalves Spletozer |
| collection | DOAJ |
| description | 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<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 infiltration 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. |
| first_indexed | 2024-12-24T01:53:16Z |
| format | Article |
| id | doaj.art-1d54b63d8f9840a28404571c523c635f |
| institution | Directory Open Access Journal |
| issn | 1806-9088 |
| language | English |
| last_indexed | 2024-12-24T01:53:16Z |
| publishDate | 2021-05-01 |
| publisher | Sociedade de Investigações Florestais |
| record_format | Article |
| series | Revista Árvore |
| spelling | doaj.art-1d54b63d8f9840a28404571c523c635f2022-12-21T17:21:39ZengSociedade de Investigações FlorestaisRevista Árvore1806-90882021-05-014510.1590/1806-908820210000005SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINEAline Gonçalves Spletozerhttps://orcid.org/0000-0003-2949-0237Lucas Jesus da Silveirahttps://orcid.org/0000-0001-5224-1023Alexandre Simões Lorenzonhttps://orcid.org/0000-0001-7733-2730Aurora Yoshiko Satohttps://orcid.org/0000-0002-1336-2444Herly Carlos Teixeira Diashttps://orcid.org/0000-0002-6893-0920ABSTRACT 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<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 infiltration 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100205&tlng=enMiningInfiltrationVegetal cover |
| spellingShingle | Aline Gonçalves Spletozer Lucas Jesus da Silveira Alexandre Simões Lorenzon Aurora Yoshiko Sato Herly Carlos Teixeira Dias SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINE Revista Árvore Mining Infiltration Vegetal cover |
| title | SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINE |
| title_full | SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINE |
| title_fullStr | SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINE |
| title_full_unstemmed | SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINE |
| title_short | SURFACE RUNOFF IN TWO REHABILITATION PERIODS OF A BAUXITE MINE |
| title_sort | surface runoff in two rehabilitation periods of a bauxite mine |
| topic | Mining Infiltration Vegetal cover |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-67622021000100205&tlng=en |
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