Assessing the feasibility of using Acrocomia aculeata (Arecaceae) for the rehabilitation of iron ore tailings
Abstract The objective of this work was to evaluate the effects of iron mining tailings on seed germination, photosynthetic capacity, and biomass accumulation of macaúba palm (Acrocomia aculeata) seedlings. After operculum removal, seed germination tests were conducted on two substrates: iron mining...
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Sociedade Botânica do Brasil
2024-12-01
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| Series: | Acta Botânica Brasílica |
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| author | Matheus Cassimiro Alves Dâmaris Gabriela Alves Neves Elisa Monteze Bicalho Kacilda Naomi Kuki Eduardo Gusmão Pereira |
| author_facet | Matheus Cassimiro Alves Dâmaris Gabriela Alves Neves Elisa Monteze Bicalho Kacilda Naomi Kuki Eduardo Gusmão Pereira |
| author_sort | Matheus Cassimiro Alves |
| collection | DOAJ |
| description | Abstract The objective of this work was to evaluate the effects of iron mining tailings on seed germination, photosynthetic capacity, and biomass accumulation of macaúba palm (Acrocomia aculeata) seedlings. After operculum removal, seed germination tests were conducted on two substrates: iron mining tailings and vermiculite (control). No significant difference was observed between treatments in the total percentage of germinated seeds, 68% and 65% for vermiculite and tailings, respectively. In a second essay, the macaúba palm seedlings were grown using four different substrates: a reference soil (mixture of red oxisol and sand), tailings, fertilized reference soil, and fertilized tailings. No significant differences were observed for the chlorophyll indices. Plants in the reference soil showed significantly higher net photosynthesis, stomatal conductance, and transpiration rate. However, plants in fertilized tailing showed greater photochemical efficiency compared to those without fertilization. The study concludes that A. aculeata maintains its germination capacity in iron mining tailings. Tailing fertilization increased macaúba seedling dry mass and leaf area with greater CO2 assimilation and photochemical efficiency. Thus, the macaúba palm is a promising plant component for rehabilitating degraded areas impacted by iron ore mining activities. |
| format | Article |
| id | doaj-art-10d1afafe49744bd9c82d8817538827b |
| institution | Kabale University |
| issn | 1677-941X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Sociedade Botânica do Brasil |
| record_format | Article |
| series | Acta Botânica Brasílica |
| spelling | doaj-art-10d1afafe49744bd9c82d8817538827b2024-12-03T07:50:28ZengSociedade Botânica do BrasilActa Botânica Brasílica1677-941X2024-12-013810.1590/1677-941x-abb-2024-0072Assessing the feasibility of using Acrocomia aculeata (Arecaceae) for the rehabilitation of iron ore tailingsMatheus Cassimiro Alveshttps://orcid.org/0000-0002-4970-6544Dâmaris Gabriela Alves Neveshttps://orcid.org/0000-0003-1463-0778Elisa Monteze Bicalhohttps://orcid.org/0000-0003-1746-0663Kacilda Naomi Kukihttps://orcid.org/0000-0001-6543-2689Eduardo Gusmão Pereirahttps://orcid.org/0000-0001-5660-2949Abstract The objective of this work was to evaluate the effects of iron mining tailings on seed germination, photosynthetic capacity, and biomass accumulation of macaúba palm (Acrocomia aculeata) seedlings. After operculum removal, seed germination tests were conducted on two substrates: iron mining tailings and vermiculite (control). No significant difference was observed between treatments in the total percentage of germinated seeds, 68% and 65% for vermiculite and tailings, respectively. In a second essay, the macaúba palm seedlings were grown using four different substrates: a reference soil (mixture of red oxisol and sand), tailings, fertilized reference soil, and fertilized tailings. No significant differences were observed for the chlorophyll indices. Plants in the reference soil showed significantly higher net photosynthesis, stomatal conductance, and transpiration rate. However, plants in fertilized tailing showed greater photochemical efficiency compared to those without fertilization. The study concludes that A. aculeata maintains its germination capacity in iron mining tailings. Tailing fertilization increased macaúba seedling dry mass and leaf area with greater CO2 assimilation and photochemical efficiency. Thus, the macaúba palm is a promising plant component for rehabilitating degraded areas impacted by iron ore mining activities.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062024000100142&lng=en&tlng=enMacaúbaMining tailingsOilseedPhotosynthesisRestoration of degraded areas. |
| spellingShingle | Matheus Cassimiro Alves Dâmaris Gabriela Alves Neves Elisa Monteze Bicalho Kacilda Naomi Kuki Eduardo Gusmão Pereira Assessing the feasibility of using Acrocomia aculeata (Arecaceae) for the rehabilitation of iron ore tailings Acta Botânica Brasílica Macaúba Mining tailings Oilseed Photosynthesis Restoration of degraded areas. |
| title | Assessing the feasibility of using Acrocomia aculeata (Arecaceae) for the rehabilitation of iron ore tailings |
| title_full | Assessing the feasibility of using Acrocomia aculeata (Arecaceae) for the rehabilitation of iron ore tailings |
| title_fullStr | Assessing the feasibility of using Acrocomia aculeata (Arecaceae) for the rehabilitation of iron ore tailings |
| title_full_unstemmed | Assessing the feasibility of using Acrocomia aculeata (Arecaceae) for the rehabilitation of iron ore tailings |
| title_short | Assessing the feasibility of using Acrocomia aculeata (Arecaceae) for the rehabilitation of iron ore tailings |
| title_sort | assessing the feasibility of using acrocomia aculeata arecaceae for the rehabilitation of iron ore tailings |
| topic | Macaúba Mining tailings Oilseed Photosynthesis Restoration of degraded areas. |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062024000100142&lng=en&tlng=en |
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