Country

South Sudan: 6 ecoregions. Each with its climate now and toward 2050, and its conservation tier.

South Sudan is savanna country crossed by water. Four of its six ecoregions are tropical grasslands and savannas: the East Sudanian savanna over much of the country, the Northern Congolian Forest-Savanna toward the wetter southwest, the Northern Acacia-Commiphora bushlands and thickets in the southeast, and the Sahelian Acacia savanna at the dry northern edge. Through the middle spread the Sudd flooded grasslands, one of the great seasonal wetlands, and the East African montane forests rise along the southern border. The result is a strongly seasonal climate: a wet season that greens the savannas and floods the Sudd, then a long dry spell. Planting follows that pulse, favoring fire- and drought-adapted savanna trees and grasses, with moisture-loving species confined to riverine and flooded ground.