Elemental chemical characterization of soils from two ice-free sectors in southern Livingston Island (northern Antarctic Peninsula region)

Some Antarctic terrestrial ecosystems are greatly affected by climate change, especially in the northern Antarctic Peninsula region which has had the greatest temperature increase in the last 60 years. This increase has been more pronounced since 2017 and has caused a retreat of many glaciers. The r...

Full description

Bibliographic Details
Main Authors: Guirado, María, Navarro, Gabriel, Díaz-Puente, Javier, Garralón, Antonio, Carcavilla, Luis, Ortega, José, Millán, Rocio, Tovar-Sánchez, Antonio, Schmid, Thomas, López-Martínez, Jerónimo
Format: Article in Journal/Newspaper
Language:Spanish
Published: Sociedade de Ciências Agrárias de Portugal 2023
Subjects:
Antarctic
Antarctic Peninsula
Hannah
Hannah Point
Hielo
Hurd
Hurd peninsula
isla Livingston
Livingston Island
península Hurd
punta Hannah
Antarc*
Antártica
Online Access:https://revistas.rcaap.pt/rca/article/view/28704
Description
Summary:Some Antarctic terrestrial ecosystems are greatly affected by climate change, especially in the northern Antarctic Peninsula region which has had the greatest temperature increase in the last 60 years. This increase has been more pronounced since 2017 and has caused a retreat of many glaciers. The retreat has caused the generation of soils, which are subjected to environmental effects (radiation, wind, temperatures), animal actions (birds, mammals) and human activities, and which evolve to greater biological production and diversity. Preliminary data on the chemical composition of soils were collected on February 2022 from different areas of Hurd Peninsula and Hannah Point (southern Livingston Island). The percentage of major elements (%) such as Si, Fe, Ca, K, and Al or minoritary (ppm) Ti, Zr, Mn, Sr, P, and S can be used to group soils according to different natural conditions and impacts. Furthermore, type and distribution of vegetation can be an indicator of soil development. Algunos ecosistemas terrestres antárticos se ven considerablemente afectados por el cambio climático, sobre todo en la región norte de la Península Antártica, que ha tenido el mayor aumento de temperatura en los últimos 60 años. Este calentamiento ha sido más pronunciado desde 2017 y ha provocado el retroceso de numerosos glaciares. Ello ha provocado la incipiente formación de suelos, que se encuentran sometidos a la acción de factores de formación (clima, biota, topografía), acción de animales (aves, mamíferos) y actividades humanas, y que evolucionan hacia una mayor producción y diversidad biológica. En este trabajo se determinó (en febrero de 2022) la composición química de los suelos en diferentes áreas de la Península Hurd y de Punta Hannah (parte meridional de la isla Livingston). En estos suelos los elementos mayoritarios (%) fueron Si, Fe, Ca, K, y Al y los minoritarios (ppm) Ti, Zr, Mn, Sr, P, y S. Estos componentes han permitido agrupar suelos según diferentes condiciones e impactos naturales, además de observar el tipo y ...

Similar Items