Brazilian semi-arid region

E534369

geographical region semi-arid region

The Brazilian semi-arid region is a vast, predominantly dry area in northeastern Brazil characterized by low and irregular rainfall, caatinga vegetation, and frequent droughts.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (13)

Label	Occurrences
Caatinga	14
Caatinga biome	8
Brazilian Sertão	4
Sertão	3
Sertão Nordestino	3
Brazilian Semi-arid region	1
Brazilian Sertão (semi-arid hinterland)	1
Brazilian semi-arid region canonical	1
Brazilian sertão	1
Caatinga region	1
Caatinga vegetation	1
Sertão / Northeast Brazil	1
Sertão of Northeastern Brazil	1

How this entity was disambiguated

This entity first appeared as the object of triple T5568851 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Brazilian semi-arid region
Context triple: [Petrolina, belongsTo, Brazilian semi-arid region]

A. Brazilian Midwest
The Brazilian Midwest is a vast inland region of Brazil known for its agricultural production, the Pantanal wetlands, and major cities such as Cuiabá, Goiânia, and Brasília.
B. Cerrado
The Cerrado is a vast tropical savanna ecoregion in central Brazil, renowned for its rich biodiversity, unique mix of grasslands and woodlands, and critical role in South American water and climate systems.
C. Southeast Region of Brazil
The Southeast Region of Brazil is the country’s most populous and economically developed area, encompassing major states and cities such as São Paulo, Rio de Janeiro, and Minas Gerais.
D. Mato Grosso region of Brazil
The Mato Grosso region of Brazil is a vast, sparsely populated area in west-central Brazil known for its dense rainforests, remote wilderness, and role as a historic frontier for explorers and adventurers.
E. North Region of Brazil
The North Region of Brazil is the country’s largest and most sparsely populated region, dominated by the Amazon rainforest and major river systems, and known for its vast biodiversity and environmental significance.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Brazilian semi-arid region
Target entity description: The Brazilian semi-arid region is a vast, predominantly dry area in northeastern Brazil characterized by low and irregular rainfall, caatinga vegetation, and frequent droughts.

A. Brazilian Midwest
The Brazilian Midwest is a vast inland region of Brazil known for its agricultural production, the Pantanal wetlands, and major cities such as Cuiabá, Goiânia, and Brasília.
B. Cerrado
The Cerrado is a vast tropical savanna ecoregion in central Brazil, renowned for its rich biodiversity, unique mix of grasslands and woodlands, and critical role in South American water and climate systems.
C. Southeast Region of Brazil
The Southeast Region of Brazil is the country’s most populous and economically developed area, encompassing major states and cities such as São Paulo, Rio de Janeiro, and Minas Gerais.
D. Mato Grosso region of Brazil
The Mato Grosso region of Brazil is a vast, sparsely populated area in west-central Brazil known for its dense rainforests, remote wilderness, and role as a historic frontier for explorers and adventurers.
E. North Region of Brazil
The North Region of Brazil is the country’s largest and most sparsely populated region, dominated by the Amazon rainforest and major river systems, and known for its vast biodiversity and environmental significance.
F. None of above. chosen

Statements (62)

Predicate	Object
instanceOf	geographical region ⓘ semi-arid region ⓘ
averageAnnualRainfall	300–800 millimeters ⓘ
averageTemperature	above 26 degrees Celsius ⓘ
characteristicFeature	frequent droughts ⓘ high evapotranspiration ⓘ shallow and rocky soils ⓘ water scarcity ⓘ
climateType	semi-arid climate ⓘ
country	Brazil ⓘ
coversArea	about 1 million square kilometers ⓘ about 11 percent of Brazil’s territory ⓘ
governedByPolicy	Brazilian National Policy for the Development of the Semi-Arid Region ⓘ
hasAdaptationStrategy	cisterns for rainwater harvesting ⓘ irrigated agriculture along rivers ⓘ water reservoirs ⓘ
hasBiome	Caatinga biome ⓘ linked to: Brazilian semi-arid region
hasCity	Aracati ⓘ Campina Grande ⓘ Caruaru ⓘ linked to: Pernambuco Feira de Santana ⓘ Juazeiro ⓘ Juazeiro do Norte ⓘ Mossoró ⓘ Petrolina ⓘ Sobral ⓘ Vitória da Conquista ⓘ
hasEnvironmentalIssue	deforestation of caatinga ⓘ desertification risk ⓘ land degradation ⓘ
hasSeasonality	long dry season ⓘ short rainy season ⓘ
hasVegetationType	caatinga ⓘ seasonally dry tropical forest ⓘ thorny scrub ⓘ
includesState	Alagoas ⓘ Bahia ⓘ Ceará ⓘ Maranhão ⓘ Minas Gerais ⓘ Paraíba ⓘ Pernambuco ⓘ Piauí ⓘ Rio Grande do Norte ⓘ Sergipe ⓘ
knownFor	recurrent multi-year droughts ⓘ unique caatinga biodiversity ⓘ
koppenClimateClassification	BSh ⓘ BShw ⓘ
locatedIn	Northeast Region of Brazil ⓘ Southeast Region of Brazil ⓘ
mainCrops	beans ⓘ cassava ⓘ cotton ⓘ forage crops ⓘ maize ⓘ sisal ⓘ
mainEconomicActivity	extensive livestock ranching ⓘ subsistence agriculture ⓘ
mainRiver	São Francisco River ⓘ
partOf	Brazilian Northeast ⓘ linked to: Northeast Region of Brazil
rainfallPattern	low and irregular rainfall ⓘ

How these facts were elicited