Altiplano

Altiplano
TBjornstad 18:03, 25 November 2006 (UTC) · Public domain · source
Name	Altiplano
Other names	Andean Plateau, Puna
Country	Bolivia; Peru; Chile; Argentina
Region	Andes
Area km2	200000
Elevation m	3800

Altiplano is a high plateau in the central Andes spanning parts of Bolivia, Peru, Chile, and Argentina. The region lies between the Cordillera Occidental (Andes) and the Cordillera Oriental (Andes), encompassing major basins such as the Lake Titicaca basin and the Salar de Uyuni. The plateau has shaped the histories of polities like the Tiwanaku and the Inca Empire and remains central to contemporary cities such as La Paz, Potosí, and El Alto.

Geography and Topography

The Altiplano occupies an elevated intermontane basin bounded by the Andes ranges including the Cordillera Occidental (Bolivia) and the Cordillera Oriental (Peru), extending from the southern shores of Lake Titicaca to the Salar de Uyuni and the Salar de Coipasa. Prominent peaks adjacent to the plateau include Nevado Sajama, Nevado Illimani, and Licancabur. Major rivers draining the region include tributaries of the Desaguadero River and endorheic basins feeding Poopó Lake and seasonal wetlands near Uru Uru Lake. Urban centers situated on the plateau include La Paz, El Alto, Potosí, Oruro, Cusco (adjacent), and Arica (coastal gateway).

Climate and Ecology

The Altiplano experiences a high‑altitude tundra and cold desert climate with large diurnal temperature ranges, influenced by the Humboldt Current along the Pacific and the continental interior. Precipitation patterns are governed by the South American Summer Monsoon and seasonal shifts in the Intertropical Convergence Zone, producing wet seasons that sustain puna grasslands and bofedales—wetland ecosystems used by species such as the Andean flamingo, vicuña, and guanaco. Vegetation types include Poa and Festuca grasses, cushion plants, and scattered Polylepis woodlands. Faunal assemblages also include predators and scavengers like the Andean fox and the Andean condor.

Human History and Indigenous Peoples

Archaeological evidence links early complex societies on the plateau to sites such as Tiwanaku, Chanapata, and Pukara, with developmental trajectories later incorporated into the Inca Empire. Indigenous groups historically and presently associated with the plateau include the Aymara, Quechua, and smaller communities such as the Uru and Lukurmata-affiliated peoples. Colonial encounters involved institutions like the Viceroyalty of Peru and the Spanish Empire, resulting in labor systems tied to mining centers such as Potosí (city) and export routes through ports like Arica. Post‑independence states including the Republic of Bolivia, the Republic of Chile, and the Republic of Peru have negotiated borders and resource claims affecting indigenous rights, with legal frameworks influenced by instruments like national constitutions and international bodies including the Organization of American States.

Economy and Land Use

Economic activities center on high‑altitude agriculture, pastoralism, mining, and urban services. Traditional crops include quinoa, potato, and oca, cultivated alongside herding of llama and alpaca for fiber and transport. Mineral wealth has been exploited at sites such as the Potosí silver mines, Huanuni tin mines, and modern projects connected to multinational firms operating in jurisdictions like Antofagasta Region and Oruro Department. Infrastructure corridors link plateau cities to coastal ports such as Arica and Iquique, while railways and roads have historical ties to colonial guano and silver trade networks associated with companies and institutions like the Compañía de Jesús (historical landholders) and 20th‑century mining conglomerates.

Culture and Society

Altiplano societies retain rich musical, textile, and ritual traditions embodied by groups including the Aymara and Quechua. Cultural expressions feature instruments such as the zampoña and charango, and textile traditions employing motifs found in artifacts from Tiwanaku and colonial-era collections now held by institutions like the Museo Nacional de Arqueología, Antropología e Historia del Perú and the Museo de la Plata. Festivities combine indigenous and Catholic calendars, illustrated by events around Lake Titicaca islands and urban carnivals in Oruro linked to networks of pilgrimage and heritage recognized by bodies such as the UNESCO (intangible heritage listings). Social movements on the plateau have produced political actors and organizations evident in electoral politics in cities like El Alto and national figures from parties active in the Plurinational State of Bolivia.

Environmental Issues and Conservation

The Altiplano faces challenges including water scarcity, glacier retreat in adjacent Andean ranges like the Cordillera Real (Bolivia), salinization of evaporitic basins such as Salar de Uyuni, and contamination linked to legacy and contemporary mining at sites like Potosí and Huanuni. Conservation efforts involve protected areas and initiatives by organizations including national parks such as Sajama National Park, transnational research collaborations with universities like Universidad Mayor de San Andrés and Universidad Nacional de San Agustín, and international programs addressing biodiversity and indigenous land rights through mechanisms related to the UN Framework Convention on Climate Change and regional conservation NGOs. Adaptive strategies by local communities combine traditional resource management with scientific monitoring to address climatic and socioeconomic pressures.

Category:Andes Category:Regions of South America