Evolution of water resources in the Bajo de Sarmiento extraandean Patagonia natural and anthropogenic impacts

The study analyzes the hydrogeomorphological dynamics of the Bajo de Sarmiento basin from the Holocene to the present, combining geological data, satellite imagery, and social surveys. It finds that while climate variability and aridity have historically been the primary drivers of water body dynamics, human activities over the last 120 years have intensified these effects, resulting in a shift from an exorheic to an endorheic basin regime and the near-disappearance of one of the lakes by 2016.

• While climate variability, specifically aridity since the mid-Holocene, has historically been the main factor affecting water bodies in the area, human activities driven by local social perceptions of resources have increased these impacts over the last 120 years.
• The combined impact of climate variability and anthropogenic activity has caused the basin to change from an exorheic regime to an endorheic one and led to the retreat of one of its lakes to the point of nearly disappearing in 2016.

APA

Inter-American Institute for Global Change Research (2025). Evolution of water resources in the Bajo de Sarmiento extraandean Patagonia natural and anthropogenic impacts. https://iai.int/es/pub_acad/evolution-of-water-resources-in-the-bajo-de-sarmiento-extraandean-patagonia-natural-and-anthropogenic-impacts/

Chicago

Inter-American Institute for Global Change Research. Evolution of water resources in the Bajo de Sarmiento extraandean Patagonia natural and anthropogenic impacts. 2025. https://iai.int/es/pub_acad/evolution-of-water-resources-in-the-bajo-de-sarmiento-extraandean-patagonia-natural-and-anthropogenic-impacts/.

Wikipedia

{{cite report |author=Inter-American Institute for Global Change Research |title=Evolution of water resources in the Bajo de Sarmiento extraandean Patagonia natural and anthropogenic impacts |date=12 January 2025 |url=https://iai.int/es/pub_acad/evolution-of-water-resources-in-the-bajo-de-sarmiento-extraandean-patagonia-natural-and-anthropogenic-impacts/ |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{interamericaninstituteforglobalchangeresearch2025evolution, author = {{Inter-American Institute for Global Change Research}}, title = {{Evolution of water resources in the Bajo de Sarmiento extraandean Patagonia natural and anthropogenic impacts}}, institution = {Inter-American Institute for Global Change Research}, year = {2025}, month = jan, url = {https://iai.int/es/pub_acad/evolution-of-water-resources-in-the-bajo-de-sarmiento-extraandean-patagonia-natural-and-anthropogenic-impacts/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }