Orashi River: Difference between revisions
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| length = {{convert|205|km|mi|abbr=on}} |
| length = {{convert|205|km|mi|abbr=on}} |
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| source1_elevation = 183 m |
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| river_system = [[Niger River]] |
| river_system = [[Niger River]] |
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| tributaries_left = Okposi |
| tributaries_left = Okposi, Ubu |
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| tributaries_right = Bonima |
| tributaries_right = Bonima |
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| waterbodies = [[Oguta Lake]] |
| waterbodies = [[Oguta Lake]] |
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'''Orashi River''' (also Urashi or Ulasi),<ref name="wedc.lboro.ac.uk"/> is a major river of the lower [[Niger River]] basin, and a tributary of [[Oguta Lake]] |
'''Orashi River''' (also Urashi or Ulasi),<ref name="wedc.lboro.ac.uk"/> is a major river of the lower [[Niger River]] basin, and a tributary of [[Oguta Lake]], southeastern [[Nigeria]].<ref name="wedc.lboro.ac.uk"/><ref name="www.omicsgroup.org">{{cite journal|url=http://www.omicsgroup.org/journals/river-basins-of-imo-state-for-sustainable-water-resources-management-2165-784X.1000134.pdf |title=River Basins of Imo State for Sustainable Water Resources Management |first=B.C. |last=Okoro |journal=Civil & Environmental Engineering |volume=|issue=4.1|date=2014 |page=4|display-authors=etal|accessdate=January 16, 2016}}</ref> <ref>{{cite web|url=http://www.davidpublishing.com/davidpublishing/Upfile/7/29/2012/2012072973443129.pdf|title=Water Quality Monitoring of a Tropical Lake and Associated Rivers: A Case Study of Oguta Lake and Its Tributaries, Niger Delta Basin, Southeastern Nigeria |publisher=Journal of Environmental Science and Engineering|date=2012|volume= A 1|issue=818-826|accessdate=January 16, 2016|page=3|author=Cosmas Ahamefule Ahiarakwem|department=Department of Geosciences, [[Federal University of Technology Owerri]] (FUTO), Nigeria|display-authors=etal}}</ref> <ref name="www.ccsenet.org">{{cite journal|url=http://www.ccsenet.org/journal/index.php/jgg/article/view/29114 |title=Impact of the 2012 Flood on Water Quality and Rural Livelihood in the Orashi Province of the Niger Delta, Nigeria |first=Prince Chinedu |last=Mmom |journal=Journal of Geography and Geology |volume=5 |issue=1916-9779|date=2013|page=4|display-authors=etal|accessdate=January 16, 2016}}</ref> Orashi takes off 183 m above mean sea level from the hills of Dikenafai, (latitude 05 045’N, longitude 07 010’E) in [[Imo State]].<ref name="wedc.lboro.ac.uk"/><ref name="www.ajol.info"/> |
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==Flow== |
==Flow== |
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From |
From Dikenafai, Orashi flows through several towns, including Urualla, Akokwa, [[Okija]], Osu, [[Ukpor]], [[Ihiala]], [[Uli, Anambra|Uli]], [[Oguta]], [[Mgbidi]], [[Omoku]], Obiakpo, Ebocha, Ukodu and Mbiama, forming tributaries before empting onto the Altlantic via Bonima River in [[Rivers State]].<ref name="www.ajol.info">{{cite journal|url=http://www.ajol.info/index.php/ajazeb/article/download/41147/8555|title=Sanitary Quality of Ulasi River, Okija, Anambra State, Nigeria|first=I.J|last=Anazoo|journal=African Journal of Applied Zoology and Environmental Biology|volume=7|ISSN=1119-023X|date=2008|page=1|display-authors=etal|department=Microbiology, Anambra State University of Science and Technology|accessdate=May 14, 2016}}</ref><ref name="wedc.lboro.ac.uk">{{cite journal|url=http://wedc.lboro.ac.uk/resources/conference/29/Mbajiorgu.pdf|title=A water quality study of Ulasi river at selected locations|first=C. C.|last=Mbajiorgu |journal=29th WEDC International Conference Towards The Millennium Development Goals|date=2003|page=1|display-authors=etal|accessdate=May 13, 2016}}</ref> |
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==Inland Waterway== |
==Inland Waterway== |
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To improve inland waterways in [[Nigeria]], the Federal Government approved the <ref name="www.thetidenewsonline.com">{{cite web|url=http://www.thetidenewsonline.com/2012/05/16/fg-to-dredge-orashi-river-votes-n8-3bn-for-inland-waterways-port/|title=FG To Dredge Orashi River …Votes N8.3bn For Inland Waterways Port|date=May 16, 2012|work=www.thetidenewsonline.com}}</ref> the dredging of the Orashi River from [[Oguta Lake]] in [[Imo State]] to Degema in [[Rivers State]].<ref name="businessandmaritimewestafrica.com">{{cite web|url=http://businessandmaritimewestafrica.com/port-infrastructure/fg-to-spend-n83bn-on-inland-ports-dredging-of-rivers/|title=FG To Spend N8.3bn On Inland Ports, Dredging Of Rivers|date=September 10, 2012|work=businessandmaritimewestafrica.com}}</ref> The project which was awarded to Simidia S and I International Company in May 2012 was to be completed in 12 months. The 205 kilometers river was expected to be dredged with a bed width of 40 meters, top width of 70 meters and depth below dredging chart datum of 1.5 meters.<ref name="www.dredgingtoday.com">{{cite web|url=https://www.dredgingtoday.com/2012/05/02/nigeria-orashi-river-dredging-progresses-well/|title=Nigeria: Orashi River Dredging Progresses Well |date=May 2012|work=www.dredgingtoday.com}}</ref> |
Orashi river as an ancient trade route, provides means of transportation for the natives who travel from one town to another by canoe, for commercial purposes or to convey farm produce on market days.<ref name="wedc.lboro.ac.uk"/> To improve inland waterways in [[Nigeria]], the Federal Government approved the <ref name="www.thetidenewsonline.com">{{cite web|url=http://www.thetidenewsonline.com/2012/05/16/fg-to-dredge-orashi-river-votes-n8-3bn-for-inland-waterways-port/|title=FG To Dredge Orashi River …Votes N8.3bn For Inland Waterways Port|date=May 16, 2012|work=www.thetidenewsonline.com}}</ref> the dredging of the Orashi River from [[Oguta Lake]] in [[Imo State]] to Degema in [[Rivers State]].<ref name="businessandmaritimewestafrica.com">{{cite web|url=http://businessandmaritimewestafrica.com/port-infrastructure/fg-to-spend-n83bn-on-inland-ports-dredging-of-rivers/|title=FG To Spend N8.3bn On Inland Ports, Dredging Of Rivers|date=September 10, 2012|work=businessandmaritimewestafrica.com}}</ref> The project which was awarded to Simidia S and I International Company in May 2012 was to be completed in 12 months. The 205 kilometers river was expected to be dredged with a bed width of 40 meters, top width of 70 meters and depth below dredging chart datum of 1.5 meters.<ref name="www.dredgingtoday.com">{{cite web|url=https://www.dredgingtoday.com/2012/05/02/nigeria-orashi-river-dredging-progresses-well/|title=Nigeria: Orashi River Dredging Progresses Well |date=May 2012|work=www.dredgingtoday.com}}</ref> |
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==Economy== |
==Economy== |
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Orashi region is in the rainforest zone of southeastern Nigeria.<ref name="wedc.lboro.ac.uk"/> Crop cultivation, Oil Palm and fishing are the major occupation of the people and source of livelihood.<ref name="www.ccsenet.org"/>{{rp|3}} Lager parts of the zone may be termed an ‘oil palm bush.’ The forest is also characterized by an abundance of plant species sometimes exceeding 150 different species per hectare. From its source down to the Atlantic, the river supports several fishermen and provides a means of liveli-hood for their families.<ref name="wedc.lboro.ac.uk"/> Orashi Region, which includes [[Njaba River]] basin, has over 35% of the oil wells in the [[Niger Delta]] states of [[Imo State|Imo]] and [[Rivers State|Rivers]].<ref name="www.ccsenet.org"/>{{rp|3}}<ref name="www.nddc.gov.ng">{{cite web|url=http://www.nddc.gov.ng/NDRMP%20Chapter%201.pdf|title=Federal Republic of Nigeria; The Niger Delta Region: Land and People|accessdate=May 14, 2016|work=www.nddc.gov.ng}}</ref> |
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The greater Orashi Region which includes [[Njaba River]] basin, has over 35% of the oil wells in the [[Niger Delta]] states of [[Imo State|Imo]] and [[Rivers State|Rivers]]. Crop cultivation, Oil Palm and fishing are the major occupation of the people and source of livelihood.<ref name="www.ccsenet.org"/>{{rp|3}} |
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==References== |
==References== |
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Revision as of 11:25, 14 May 2016
| Orashi River, Nigeria Ulasi | |
|---|---|
_at_oguta.jpg) | |
 | |
| Native name | Urashi Error {{native name checker}}: parameter value is malformed (help) |
| Physical characteristics | |
| Source | |
| • location | Dikenafai, Imo State.[1] |
| • elevation | 183 m |
| Length | 205 km (127 mi) |
| Basin features | |
| River system | Niger River |
| Tributaries | |
| • left | Okposi, Ubu |
| • right | Bonima |
| Waterbodies | Oguta Lake |
Orashi River (also Urashi or Ulasi),[1] is a major river of the lower Niger River basin, and a tributary of Oguta Lake, southeastern Nigeria.[1][2] [3] [4] Orashi takes off 183 m above mean sea level from the hills of Dikenafai, (latitude 05 045’N, longitude 07 010’E) in Imo State.[1][5]
Flow
From Dikenafai, Orashi flows through several towns, including Urualla, Akokwa, Okija, Osu, Ukpor, Ihiala, Uli, Oguta, Mgbidi, Omoku, Obiakpo, Ebocha, Ukodu and Mbiama, forming tributaries before empting onto the Altlantic via Bonima River in Rivers State.[5][1]
Inland Waterway
Orashi river as an ancient trade route, provides means of transportation for the natives who travel from one town to another by canoe, for commercial purposes or to convey farm produce on market days.[1] To improve inland waterways in Nigeria, the Federal Government approved the [6] the dredging of the Orashi River from Oguta Lake in Imo State to Degema in Rivers State.[7] The project which was awarded to Simidia S and I International Company in May 2012 was to be completed in 12 months. The 205 kilometers river was expected to be dredged with a bed width of 40 meters, top width of 70 meters and depth below dredging chart datum of 1.5 meters.[8]
Economy
Orashi region is in the rainforest zone of southeastern Nigeria.[1] Crop cultivation, Oil Palm and fishing are the major occupation of the people and source of livelihood.[4]: 3 Lager parts of the zone may be termed an ‘oil palm bush.’ The forest is also characterized by an abundance of plant species sometimes exceeding 150 different species per hectare. From its source down to the Atlantic, the river supports several fishermen and provides a means of liveli-hood for their families.[1] Orashi Region, which includes Njaba River basin, has over 35% of the oil wells in the Niger Delta states of Imo and Rivers.[4]: 3 [9]
References
- ^ a b c d e f g h Mbajiorgu, C. C.; et al. (2003). "A water quality study of Ulasi river at selected locations" (PDF). 29th WEDC International Conference Towards The Millennium Development Goals: 1. Retrieved May 13, 2016.
- ^ Okoro, B.C.; et al. (2014). "River Basins of Imo State for Sustainable Water Resources Management" (PDF). Civil & Environmental Engineering (4.1): 4. Retrieved January 16, 2016.
- ^ Cosmas Ahamefule Ahiarakwem; et al. (2012). "Water Quality Monitoring of a Tropical Lake and Associated Rivers: A Case Study of Oguta Lake and Its Tributaries, Niger Delta Basin, Southeastern Nigeria" (PDF). Department of Geosciences, Federal University of Technology Owerri (FUTO), Nigeria. Journal of Environmental Science and Engineering. p. 3. Retrieved January 16, 2016.
- ^ a b c Mmom, Prince Chinedu; et al. (2013). "Impact of the 2012 Flood on Water Quality and Rural Livelihood in the Orashi Province of the Niger Delta, Nigeria". Journal of Geography and Geology. 5 (1916–9779): 4. Retrieved January 16, 2016.
- ^ a b Anazoo, I.J; et al. (2008). "Sanitary Quality of Ulasi River, Okija, Anambra State, Nigeria". Microbiology, Anambra State University of Science and Technology. African Journal of Applied Zoology and Environmental Biology. 7: 1. ISSN 1119-023X. Retrieved May 14, 2016.
- ^ "FG To Dredge Orashi River …Votes N8.3bn For Inland Waterways Port". www.thetidenewsonline.com. May 16, 2012.
- ^ "FG To Spend N8.3bn On Inland Ports, Dredging Of Rivers". businessandmaritimewestafrica.com. September 10, 2012.
- ^ "Nigeria: Orashi River Dredging Progresses Well". www.dredgingtoday.com. May 2012.
- ^ "Federal Republic of Nigeria; The Niger Delta Region: Land and People" (PDF). www.nddc.gov.ng. Retrieved May 14, 2016.