What cultural aspects can one share from the information given on Niger? 
 Useful so vestiges of a French system in a time that gardening was a power card between royals and elites so says Monty Don expert gardener on French gardens. Any information on formal gardens created or cultivation of environment? 
 Any data on Niger climate, geography or ecology would prove healthful for the work? 
 The dams constructed on the Niger River in the neighboring countries of Mali and Guinea also within Niger itself are cited as a reason for a reduction of water flow in the Niger River. 
 So manmade structure interfered with the natural process going on in the landscape hmmm so any information as related to climate why that much water needed to be stored?
The dams constructed on the Niger River in the neighboring countries of Mali and Guinea also within Niger itself are cited as a reason for a reduction of water flow in the Niger River.