Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation
Abstract The Byers Peninsula, the largest ice-free area in Maritime Antarctica, is vital for studying landscape-scale natural processes due to its diverse periglacial landforms. This study aim to characterize the soils and environments of its southern sector, focusing on soil-landform-lithology inte...
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Academia Brasileira de Ciências
2025-01-01
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| author | JÔNATAS PEDRO DA SILVA MÁRCIO R. FRANCELINO ANDRÉ LUIZ L. DE FARIA HEITOR P. PALMA ISABELLE DE A. OLIVEIRA JOSÉ JOÃO L.L. DE SOUZA CARLOS ERNESTO G.R. SCHAEFER |
| author_facet | JÔNATAS PEDRO DA SILVA MÁRCIO R. FRANCELINO ANDRÉ LUIZ L. DE FARIA HEITOR P. PALMA ISABELLE DE A. OLIVEIRA JOSÉ JOÃO L.L. DE SOUZA CARLOS ERNESTO G.R. SCHAEFER |
| author_sort | JÔNATAS PEDRO DA SILVA |
| collection | DOAJ |
| description | Abstract The Byers Peninsula, the largest ice-free area in Maritime Antarctica, is vital for studying landscape-scale natural processes due to its diverse periglacial landforms. This study aim to characterize the soils and environments of its southern sector, focusing on soil-landform-lithology interactions. Thirty-seven soil profiles were classified, collected, and chemically and physically analyzed. Principal component analysis explored relationships among variables in these profiles and 36 others from the Peninsula project database. The soils are generally shallow, with lithic or paralithic contact within the first meter. Four main soil groups were identified: patterned-ground soils on plateaus, ornithogenic soils, non-ornithogenic soils, and non-ornithogenic sodic and sandy soils on beaches and marine terraces. The Peninsula, divided into six geological units, represents a diverse periglacial morphogenetic system. Sixteen landform types were identified, each associated with different processes, topographies, lithologies, altitudes, and orientations, highlighting the importance of periglacial morphogenesis. Stable soilscapes, such as upper cryoplanation platforms, raised beaches, volcanic plugs, and ornithogenically influenced areas, show greater soil development and weathering. In contrast, dynamic periglacial landforms like scree stony slopes and talus exhibit minimal soil development and instability. The Byers Peninsula’s pedodiversity is due to its varied lithologies, landforms, extensive ornithogenic influences from seabirds, and long-term vegetation establishment. |
| format | Article |
| id | doaj-art-08e86294ffd04008b875b947e5636965 |
| institution | Kabale University |
| issn | 1678-2690 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Academia Brasileira de Ciências |
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| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj-art-08e86294ffd04008b875b947e56369652025-01-21T07:36:09ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902025-01-0196suppl 210.1590/0001-3765202420240583Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formationJÔNATAS PEDRO DA SILVAhttps://orcid.org/0000-0001-5114-8329MÁRCIO R. FRANCELINOhttps://orcid.org/0000-0001-8837-1372ANDRÉ LUIZ L. DE FARIAhttps://orcid.org/0000-0003-0492-9725HEITOR P. PALMAhttps://orcid.org/0009-0006-2428-365XISABELLE DE A. OLIVEIRAhttps://orcid.org/0009-0006-7627-5934JOSÉ JOÃO L.L. DE SOUZAhttps://orcid.org/0000-0003-4670-6626CARLOS ERNESTO G.R. SCHAEFERhttps://orcid.org/0000-0001-7060-1598Abstract The Byers Peninsula, the largest ice-free area in Maritime Antarctica, is vital for studying landscape-scale natural processes due to its diverse periglacial landforms. This study aim to characterize the soils and environments of its southern sector, focusing on soil-landform-lithology interactions. Thirty-seven soil profiles were classified, collected, and chemically and physically analyzed. Principal component analysis explored relationships among variables in these profiles and 36 others from the Peninsula project database. The soils are generally shallow, with lithic or paralithic contact within the first meter. Four main soil groups were identified: patterned-ground soils on plateaus, ornithogenic soils, non-ornithogenic soils, and non-ornithogenic sodic and sandy soils on beaches and marine terraces. The Peninsula, divided into six geological units, represents a diverse periglacial morphogenetic system. Sixteen landform types were identified, each associated with different processes, topographies, lithologies, altitudes, and orientations, highlighting the importance of periglacial morphogenesis. Stable soilscapes, such as upper cryoplanation platforms, raised beaches, volcanic plugs, and ornithogenically influenced areas, show greater soil development and weathering. In contrast, dynamic periglacial landforms like scree stony slopes and talus exhibit minimal soil development and instability. The Byers Peninsula’s pedodiversity is due to its varied lithologies, landforms, extensive ornithogenic influences from seabirds, and long-term vegetation establishment.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652024000401505&lng=en&tlng=enPedoenvironmentsgeologygeomorphologyperiglacial landformsice-free area |
| spellingShingle | JÔNATAS PEDRO DA SILVA MÁRCIO R. FRANCELINO ANDRÉ LUIZ L. DE FARIA HEITOR P. PALMA ISABELLE DE A. OLIVEIRA JOSÉ JOÃO L.L. DE SOUZA CARLOS ERNESTO G.R. SCHAEFER Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation Anais da Academia Brasileira de Ciências Pedoenvironments geology geomorphology periglacial landforms ice-free area |
| title | Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation |
| title_full | Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation |
| title_fullStr | Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation |
| title_full_unstemmed | Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation |
| title_short | Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation |
| title_sort | soilscapes from byers peninsula maritime antarctic landform lithology controls in soil formation |
| topic | Pedoenvironments geology geomorphology periglacial landforms ice-free area |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652024000401505&lng=en&tlng=en |
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