The Ji-Paraná River (Machado River), sometimes spelled Jiparaná, is a river in Rondônia state in western Brazil. It is a tributary of the Madeira River in the Amazon Basin. For much of its length it runs roughly parallel with the northeastern state border of Rondônia. The city of Ji-Paraná is divided by the river.

Ji-Paraná River
Machado River
Bridge (BR-364 highway) over the river in Ji-Paraná city
Ji-Paraná River is located in
Ji-Paraná River
Location of the mouth of the Ji-Paraná River in the Amazonas watershed
Physical characteristics
 • locationConfluence of Pimenta Bueno and Comemoração, Parecis plateau, Rondônia, Brazil
 • elevation173 m (568 ft)
MouthMadeira River
 • location
Rondônia, Brazil
 • coordinates
8°02′55″S 62°53′51″W / 8.048599°S 62.897437°W / -8.048599; -62.897437
 • elevation
43 m (141 ft)
Length820 km (510 mi)[1]
Basin size76,127 km2 (29,393 sq mi)[2]
 • locationConfluence of Madeira, Rondônia
 • average2,100 m3/s (74,000 cu ft/s)[2]
 • minimum596 m3/s (21,000 cu ft/s)[2]
 • maximum4,360 m3/s (154,000 cu ft/s)[2]
Basin features
 • leftPimenta Bueno, Jaru, Rolim de Moura, Muqui, Urupá, Machadinho, Juruazinho, Preto
 • rightComemoração, São João

Part of the river's basin is covered by the 221,218 hectares (546,640 acres) Jacundá National Forest, a sustainable use conservation unit.[3] Part of the basin is in the 346,861 hectares (857,110 acres) Jaru Biological Reserve, a fully protected conservation unit created in 1984.[4] The river forms the southern boundary in Rondônia of the Campos Amazônicos National Park, a 961,318 hectares (2,375,470 acres) protected area created in 2006 that holds an unusual enclave of cerrado vegetation in the Amazon rainforest.[5]

See also edit

References edit

  1. ^ Ziesler, R.; Ardizzone, G.D. (1979). "Amazon River System". The Inland waters of Latin America. Food and Agriculture Organization of the United Nations. ISBN 92-5-000780-9. Archived from the original on 21 October 2013.
  2. ^ a b c d Prof. Carlos, Vieira da Silva; Prof. Carlos Eduardo, Norelli Tucci; Prof. José, Almir Cirilo; Prof. Luciene, Pimentel da Silva; Prof. Otto, Corrêa Roturno Filho; Prof. Benoit, Le Guennec (2006). "SIMULAÇÃO HIDROLÓGICA NA AMAZÔNIA: RIO MADEIRA".
  3. ^ Unidade de Conservação: Floresta Nacional de Jacundá (in Portuguese), MMA: Ministério do Meio Ambiente, retrieved 2016-05-16
  4. ^ Unidade de Conservação: Reserva Biológica do Jaru (in Portuguese), MMA: Ministério do Meio Ambiente, retrieved 2016-04-27
  5. ^ Parna Campos Amazônicos Mapa Interativo (in Portuguese), Chico Mendes Institute for Biodiversity Conservation, archived from the original on 2016-08-17, retrieved 2016-06-03