Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western Amazon
The Amazon rainforest region presents a phytophysiognomy that ranges from savannas to cerrados, all of them intimately associated to climate and soil characteristics. Evidence has been given that plant growth and development are affected by soil quality and seasonality, thus making it crucial to und...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2022-11-01
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| Series: | Bioscience Journal |
| Subjects: | |
| Online Access: | https://seer.ufu.br/index.php/biosciencejournal/article/view/53707 |
| _version_ | 1811169771052335104 |
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| author | Maria Clécia Gomes Sales Elilson Gomes de Brito Filho Milton César Costa Campos Carlos Henrique Gima Relvas Luís Antônio Coutrim dos Santos Matheus Motta Gomes José Maurício da Cunha Flávio Pereira de Oliveira Romária Gomes de Almeida |
| author_facet | Maria Clécia Gomes Sales Elilson Gomes de Brito Filho Milton César Costa Campos Carlos Henrique Gima Relvas Luís Antônio Coutrim dos Santos Matheus Motta Gomes José Maurício da Cunha Flávio Pereira de Oliveira Romária Gomes de Almeida |
| author_sort | Maria Clécia Gomes Sales |
| collection | DOAJ |
| description | The Amazon rainforest region presents a phytophysiognomy that ranges from savannas to cerrados, all of them intimately associated to climate and soil characteristics. Evidence has been given that plant growth and development are affected by soil quality and seasonality, thus making it crucial to understand them and how they are related to each other in order to grasp the dynamics of the whole ecosystem. In this context, the goal of this research was to assess how seasonality, soil attributes, and root system biomass are related in natural cerrado, cerradão, and forest areas in southern Amazonas State, in Brazil. Soil samples were collected during dry (June/2018) and rainy (December/2018) seasons from three different layers 0.00–0.05m; 0.05–0.15m, and 0.15–0.30m deep. In each area ten sampling points were randomly chosen. Two kinds of soil samples were collected: the first using 4.0 cm height by 5.1cm internal-diameter soil sample rings; and the second were intact soil lumps. Physical and Chemical soil attributes assessed were macro-porosity (MaP), micro-porosity (MiP), total porosity (TP), soil density (SD), aggregates texture and stability (GMD and WAR), gravimetric humidity (HG), organic carbon (OC), exchangeable aluminum (Al3+), potential acidity (H+Al), sum of bases (SB), cation exchange capacity (CEC), and root biomass (RB). All data were analysed via Tukey t test and student T test to compare results between seasons and areas. Increasing vegetation density (cerrado < cerradão < forest) was followed by an increment in CEC and OC, showing the importance of these attributes to maintaining biodiversity in environments. In amazon cerrado, rainy season as well a sandier soil textures provided favourable conditions to the growth and development of plants’ root system. Soil attributes were little affected by seasonality, that had greater effect on MiP, TP, SD, and OC, leading to lesser values for these variables during rainy season. |
| first_indexed | 2024-04-10T16:47:12Z |
| format | Article |
| id | doaj.art-016fd3422764414c918f4044a81d31ef |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-04-10T16:47:12Z |
| publishDate | 2022-11-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-016fd3422764414c918f4044a81d31ef2023-02-07T19:06:27ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632022-11-0138e38092e3809210.14393/BJ-v38n0a2022-5370727906Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western AmazonMaria Clécia Gomes Sales0Elilson Gomes de Brito Filho1https://orcid.org/0000-0001-6718-2126Milton César Costa Campos2https://orcid.org/0000-0002-8183-7069Carlos Henrique Gima Relvas3Luís Antônio Coutrim dos Santos4https://orcid.org/0000-0002-0824-0901Matheus Motta Gomes5https://orcid.org/0000-0002-9258-3789José Maurício da Cunha6Flávio Pereira de Oliveira7https://orcid.org/0000-0001-7968-6145Romária Gomes de Almeida8Universidade Federal do AmazonasUniversidade Federal do AmazonasUniversidade Federal do AmazonasUniversidade Federal do AmazonasUniversidade Federal do AmazonasUniversidade Federal Rural do Rio de JaneiroUniversidade Federal do AmazonasUniversidade Federal da ParaíbaUniversidade Federal do Amazonas The Amazon rainforest region presents a phytophysiognomy that ranges from savannas to cerrados, all of them intimately associated to climate and soil characteristics. Evidence has been given that plant growth and development are affected by soil quality and seasonality, thus making it crucial to understand them and how they are related to each other in order to grasp the dynamics of the whole ecosystem. In this context, the goal of this research was to assess how seasonality, soil attributes, and root system biomass are related in natural cerrado, cerradão, and forest areas in southern Amazonas State, in Brazil. Soil samples were collected during dry (June/2018) and rainy (December/2018) seasons from three different layers 0.00–0.05m; 0.05–0.15m, and 0.15–0.30m deep. In each area ten sampling points were randomly chosen. Two kinds of soil samples were collected: the first using 4.0 cm height by 5.1cm internal-diameter soil sample rings; and the second were intact soil lumps. Physical and Chemical soil attributes assessed were macro-porosity (MaP), micro-porosity (MiP), total porosity (TP), soil density (SD), aggregates texture and stability (GMD and WAR), gravimetric humidity (HG), organic carbon (OC), exchangeable aluminum (Al3+), potential acidity (H+Al), sum of bases (SB), cation exchange capacity (CEC), and root biomass (RB). All data were analysed via Tukey t test and student T test to compare results between seasons and areas. Increasing vegetation density (cerrado < cerradão < forest) was followed by an increment in CEC and OC, showing the importance of these attributes to maintaining biodiversity in environments. In amazon cerrado, rainy season as well a sandier soil textures provided favourable conditions to the growth and development of plants’ root system. Soil attributes were little affected by seasonality, that had greater effect on MiP, TP, SD, and OC, leading to lesser values for these variables during rainy season.https://seer.ufu.br/index.php/biosciencejournal/article/view/53707amazonian biomenatural vegetationseasonal dynamicssoils. |
| spellingShingle | Maria Clécia Gomes Sales Elilson Gomes de Brito Filho Milton César Costa Campos Carlos Henrique Gima Relvas Luís Antônio Coutrim dos Santos Matheus Motta Gomes José Maurício da Cunha Flávio Pereira de Oliveira Romária Gomes de Almeida Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western Amazon Bioscience Journal amazonian biome natural vegetation seasonal dynamics soils. |
| title | Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western Amazon |
| title_full | Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western Amazon |
| title_fullStr | Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western Amazon |
| title_full_unstemmed | Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western Amazon |
| title_short | Seasonality, soil attributes and root biomass in cerrado, cerradão and forest environments, western Amazon |
| title_sort | seasonality soil attributes and root biomass in cerrado cerradao and forest environments western amazon |
| topic | amazonian biome natural vegetation seasonal dynamics soils. |
| url | https://seer.ufu.br/index.php/biosciencejournal/article/view/53707 |
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