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| Lago Poopó | |
|---|---|
| Name | Poopó |
| Location | Oruro Department, Bolivia |
| Type | Endorheic saline lake |
| Inflow | Desaguadero River, Río Mauri |
| Outflow | None (evaporation) |
| Catchment | Altiplano |
| Basin countries | Bolivia |
| Area | variable (historically ~3,000 km²) |
| Elevation | ~3,700 m |
Lago Poopó Lago Poopó was a large endorheic saline lake on the Bolivian Altiplano in the Oruro Department, historically fed by the Desaguadero River and tributaries from Lake Titicaca, the Sajama National Park watershed, and the Río Mauri basin. It lay within the Andes mountains near the Uyuni Salt Flat and the city of Oruro, and its fluctuating surface connected hydrologically and culturally to indigenous communities such as the Aymara and Quechua. The lake’s seasonal dynamics were influenced by regional climate drivers including the El Niño–Southern Oscillation and highland precipitation patterns studied by institutions like the Universidad Mayor de San Andrés and the International Union for Conservation of Nature.
Situated at roughly 3,700 metres above sea level on the Altiplano, the lake occupied a basin bounded by the Cordillera Occidental and the Cordillera Oriental ranges and was part of the endorheic La Paz Department–Oruro Department watershed network. Major inflows included the Desaguadero River that drains Lake Titicaca and tributaries originating near Sajama and the Lipez region; there was no surface outflow, and water loss occurred by evaporation influenced by the South American summer monsoon and regional Andean glaciation dynamics. Historical maps by explorers associated with the Royal Geographical Society and surveys by the Instituto Geográfico Militar de Bolivia documented large seasonal area changes, while hydrologists from the United Nations Environment Programme and World Bank have modeled catchment runoff, sediment transport, and salinity gradients.
The lacustrine plain served as a resource base for pre-Columbian societies including groups linked to the Tiwanaku and later Aymara polities; Spanish colonial records from the Viceroyalty of Peru reference salt exploitation and reed harvesting used by local communities and by colonial administrators in Potosí. The lake region played a role in trade routes connecting the Altiplano to the Pacific coast and the interior, intersecting with the histories of the Inca Empire and later the Republic of Bolivia. Anthropologists from the Smithsonian Institution and the National Museum of Ethnography and Folklore (Bolivia) have documented ceremonial practices, fisheries, and artisanal salt extraction linked to cultural identity among Aymara and Quechua communities.
Historically the lake supported saline-tolerant assemblages including populations of Andean flamingo (Phoenicopterus andinus) and James's flamingo (Phoenicoparrus jamesi) and provided habitat for migratory waterbirds using flyways connecting to the Pacific Americas Flyway, with surveys by ornithologists affiliated with the Wildlife Conservation Society and BirdLife International. The littoral and peatland margins hosted macrophyte beds and invertebrate communities that supported fisheries exploited by local fishers harvesting species related to native Orestias killifish, documented in studies by the Bolivian Institute of Agricultural and Forest Research. Paleolimnological cores archived in collections at the University of Cambridge and University of Bern reveal past shifts in productivity, diatom assemblages, and isotopic signatures tied to Holocene climate variability and human land use.
During the late 20th and early 21st centuries the lake experienced progressive shrinkage and episodes of near disappearance driven by a combination of reduced inflow from Lake Titicaca–Desaguadero River dynamics, intensified evaporation linked to regional warming trends associated with global warming, and anthropogenic water diversions for mining and irrigation by operations tied to the Bolivian mining industry and agro-industrial projects near Poopó Province and Oruro. Major die-off events and terminal dryouts were documented by remote sensing analysts at NASA and European Space Agency using Landsat and Sentinel imagery, sparking assessments by the World Meteorological Organization and academic teams from University of Oxford and Universidad Católica Boliviana. Environmental journalists from outlets linked to the Associated Press and Deutsche Welle reported socioeconomic crises concurrent with ecological collapse.
The lake’s decline had pronounced impacts on artisanal fishers, salt workers, and rural communities around Oruro and towns such as Huari and Poopó Municipality, affecting livelihoods documented by the International Labour Organization and humanitarian agencies including UNICEF and International Organization for Migration. Health impacts and displacement were studied by public health researchers at Johns Hopkins University and Universidad Mayor de San Simón, while social scientists from University of California, Berkeley and Pontifical Catholic University of Chile examined changes in cultural practices, migration to urban centers like La Paz and Cochabamba, and conflicts over water resources connected to legislation from the Plurinational Legislative Assembly.
Responses involved multi-stakeholder initiatives including proposals by the Bolivian Ministry of Environment and Water, conservation planning by IUCN and regional NGOs such as Conservación Amazónica collaborators, and technical support from international donors like the Inter-American Development Bank and FAO. Restoration options assessed by hydrologists and ecologists from the Smithsonian Tropical Research Institute and CIRAD ranged from managed inflow regulation, catchment reforestation, to integrated water resource management aligning with frameworks promoted by the Convention on Wetlands (Ramsar). Pilot projects have engaged local municipalities, indigenous organizations, and academic partners from Universidad Técnica de Oruro to monitor hydrology, water quality, and biodiversity recovery while policy dialogues continue at forums involving the Andean Community and regional development banks.
Category:Lakes of Bolivia