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| Sertão | |
|---|---|
| Name | Sertão |
| Settlement type | Region |
| Subdivision type | Country |
| Subdivision name | Brazil |
Sertão The Sertão is a semi-arid hinterland region in northeastern Brazil known for its distinctive caatinga biome, recurrent drought cycles, and cultural traditions rooted in rural life. It spans parts of the states of Bahia, Pernambuco, Ceará, Paraíba, Rio Grande do Norte, Piauí, Alagoas, and Sergipe, and has played central roles in Brazilian colonial history, republican politics, and regional identity.
The name derives from Portuguese terms for hinterland used during the Age of Discovery and Portuguese colonization of the Americas, comparable to terms employed in Iberian Peninsula exploration such as terras do interior and sertão in classical Camões era usage. Historical documents from the Captaincies of Brazil and decrees by the Portuguese Empire and later the Empire of Brazil use the term to distinguish interior zones like the backlands of Minas Gerais and the uplands adjacent to the Amazon Basin. Anthropologists and geographers at institutions such as the Brazilian Institute of Geography and Statistics and scholars of the Universidade Federal de Pernambuco define the region by climatic, vegetational, and socio-cultural criteria, echoing categorizations used by the Food and Agriculture Organization and the Intergovernmental Panel on Climate Change.
The region occupies interior portions of northeastern South America within Brazilian states including Bahia, Pernambuco, and Ceará, featuring plateaus, shallow river valleys such as the São Francisco River basin, and salt pans like those near Maceió. Climatically it is dominated by semi-arid conditions classified under the Köppen climate classification as BSh and BShw zones, producing erratic rainfall patterns that drive recurring drought cycles historically recorded by imperial cartographers and modern meteorologists at the National Institute of Meteorology (Brazil). Vegetation is dominated by caatinga assemblages, with adapted species studied in research centers like the Embrapa and universities such as the Universidade Federal da Bahia. The terrain and soils are linked to watershed dynamics influencing the São Francisco River and coastal estuaries monitored by environmental agencies including the Chico Mendes Institute for Biodiversity Conservation.
Pre-Colonial occupation included indigenous groups such as the Tupinambá, Kiriri, and Pankararé, documented in chronicles by travellers and missionaries associated with the Society of Jesus and colonial maps preserved in archives like the Arquivo Nacional (Brazil). The region was transformed by expansion of sugarcane plantations in the early modern period, by cattle ranching linked to the Bandeirantes and by the inland routes used during the Dutch Brazil conflict and the Pernambuco Revolution (1817). 19th-century developments included migration patterns during the Cangaço era involving figures like Lampião and responses by the Brazilian Army and state police forces. 20th-century initiatives by the Vargas Era governments and modern federal programs such as the National Integration Plan and the Transposição do Rio São Francisco project reshaped settlement, while agrarian movements like the Landless Workers' Movement (MST) and policies from the Ministry of Agrarian Development (Brazil) influenced land tenure.
Economic activity historically centered on extensive cattle ranching and subsistence agriculture of crops like corn, beans, and manioc; export commodities included cotton and regional products such as carnauba wax and dried meat (carne seca). Contemporary diversification involves irrigated agriculture in polos supported by entities like Embrapa, smallholder cooperatives linked to the National Program for Strengthening Family Agriculture (PRONAF), and extractive uses including energy production from biogas projects and solar farms promoted by companies and the Ministry of Mines and Energy (Brazil). Land use change involves tensions among large agribusiness firms, family farmers represented by Confederação Nacional da Agricultura, and conservation units such as Serra da Capivara National Park.
The Sertão has produced influential cultural figures and movements including writers like Ariano Suassuna and Graciliano Ramos, musicians such as Luiz Gonzaga and the forró tradition, and local religious syncretisms involving Candomblé and Catholic Church practices centered on festas juninas and pilgrimages to sites like Juazeiro do Norte associated with Padre Cícero. Social organization reflects kinship networks, rural associations, and political mobilization through parties including the Workers' Party (Brazil) and regional factions of the Brazilian Democratic Movement. Educational and research institutions such as the Universidade Federal do Ceará and cultural centers support studies of folklore, traditional crafts, and oral histories linked to composers, sertanejo literature, and cinema movements that engage with regional identity.
Key environmental challenges include desertification risk, deforestation of caatinga habitats, groundwater depletion in aquifers such as those tapped by municipal wells, and biodiversity loss affecting endemic flora and fauna studied by the Biological Diversity Conservation agencies and research groups at Universidade Federal de Pernambuco. Conservation responses include creation of protected areas like Serra da Capivara National Park and initiatives by NGOs such as SOS Mata Atlântica and international partners including the World Wildlife Fund. Climate adaptation programs funded by the World Bank and coordinated with federal ministries address drought resilience, water management infrastructure like reservoirs along the São Francisco River, and sustainable livelihoods promoted through programs such as Bolsa Família and regional development agencies.
The Sertão has inspired canonical works in Brazilian literature and arts, featuring novels and narratives by João Cabral de Melo Neto, Graciliano Ramos's regionalist fiction, and the influential modernist drama of Ariano Suassuna; cinema portrayals include films by directors like Glauber Rocha and contemporary filmmakers showcased at festivals such as the Festival de Brasília do Cinema Brasileiro. Visual arts and popular music draw on icons like Luiz Gonzaga and the forró circuit, while folklorists and ethnomusicologists at institutions like the Museu do Sertão and university departments archive oral poetry, cordel literature, and theatrical traditions that continue to shape national imaginaries and academic discourse.