Editing Hydrogeology of Niger

Jump to navigation Jump to search

Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.

This page supports semantic in-text annotations (e.g. "[[Is specified as::World Heritage Site]]") to build structured and queryable content provided by Semantic MediaWiki. For a comprehensive description on how to use annotations or the #ask parser function, please have a look at the getting started, in-text annotation, or inline queries help pages.

Latest revision Your text
Line 82: Line 82:
 
{|
 
{|
 
|-
 
|-
|There are two major river basins in Niger: the watershed of eastern Niger, which are dominated by the Lake Chad basin and the Komadougou Yobe; and the watershed of Western Niger, which is dominated by the Niger River and its tributaries. Most surface runoff is in the Niger River (90%) and its tributaries from the right bank.  
+
|There are two major river basins in Niger: the watershed of eastern Niger, which includes the Komadougou Yobe, Koroma and Lake Chad; and the watershed of Western Niger, which includes the Niger River and its tributaries, the valleys of the west side of the Aïr (Telwa), the valleys and koris of Ader-Doutchi (Keita Valley, Badaguichiri, Maggia), the Dallols (Bosso, Maouri and Foga) and the Goulbi (N'Maradi, Kaba, Kebi and Mai Farou).
  
In addition, Niger's surface drainage network includes over 1,000 ponds, of which about 175 are permanent. These ponds are often hydraulically connected to aquifers: for example, the Tabalack and Madarounfa ponds (FAO Aquastat).
+
In addition, Niger's surface drainage network includes over 1,000 ponds, of which about 175 are permanent. These ponds are often hydraulically connected to aquifers: for example, the Tabalack and Madarounfa ponds.
 
 
Niger currently has about 10 dams, with a theoretical total capacity of about 76 million cubic metres (FAO Aquastat).  
 
  
 
Niger had an area of ​​4,317,589 ha of internationally important wetlands in 2013. The W" National Park was the first site designated in 1987, and since then 11 other RAMSAR sites have been designated, including wetlands of the Niger Valley, Korama and Komadougou Yobe, natural lakes and ponds, fossil streams and oases.
 
Niger had an area of ​​4,317,589 ha of internationally important wetlands in 2013. The W" National Park was the first site designated in 1987, and since then 11 other RAMSAR sites have been designated, including wetlands of the Niger Valley, Korama and Komadougou Yobe, natural lakes and ponds, fossil streams and oases.
 
 
  
 
| [[File:Niger_Hydrology.png | frame | Major surface water features of Niger. Map developed from World Wildlife Fund HydroSHEDS; Digital Chart of the World drainage; and FAO Inland Water Bodies. For more information on the map development and datasets see the [[Surface water | surface water resource page]].]]
 
| [[File:Niger_Hydrology.png | frame | Major surface water features of Niger. Map developed from World Wildlife Fund HydroSHEDS; Digital Chart of the World drainage; and FAO Inland Water Bodies. For more information on the map development and datasets see the [[Surface water | surface water resource page]].]]
Line 99: Line 95:
 
|-
 
|-
 
|Soils in NIger are largely sandy or sandy-clay, and typically poor in nutrients and organic matter. The cultivable soils are 80% dune and 15 to 20% percent moderately clayey hydromorphic soils (FAO Aquastat).
 
|Soils in NIger are largely sandy or sandy-clay, and typically poor in nutrients and organic matter. The cultivable soils are 80% dune and 15 to 20% percent moderately clayey hydromorphic soils (FAO Aquastat).
 
 
 
 
  
 
|[[File:Niger_soil.png | frame | Soil Map of Niger, from the European Commission Joint Research Centre: European Soil Portal. For more information on the map see the [[Soil | soil resource page]].]]
 
|[[File:Niger_soil.png | frame | Soil Map of Niger, from the European Commission Joint Research Centre: European Soil Portal. For more information on the map see the [[Soil | soil resource page]].]]
Line 112: Line 104:
 
|-
 
|-
 
|Three quarters of the area of Niger is Sahara desert. The southern part of the country lies in the Sahelo-Sudan zone (FAO Aquastat).  
 
|Three quarters of the area of Niger is Sahara desert. The southern part of the country lies in the Sahelo-Sudan zone (FAO Aquastat).  
 
 
 
 
  
  

Please note that all contributions to Earthwise may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see Earthwise:Copyrights for details). Do not submit copyrighted work without permission!

Cancel Editing help (opens in new window)

  [] · [[]] · [[|]] · {{}} · · “” ‘’ «» ‹› „“ ‚‘ · ~ | °   · ± × ÷ ² ³ ½ · §
[[Category:]] · [[:File:]] · <code></code> · <syntaxhighlight></syntaxhighlight> · <includeonly></includeonly> · <noinclude></noinclude> · #REDIRECT[[]] · <translate></translate> · <languages/> · ==References== · {{reflist}} · ==Footnote== · {{reflist|group=note}} · <ref group=note> · __notoc__ · {{DEFAULTSORT:}} <div class="someclass noprint"></div> {{clear}} <br>