资讯

Yams are considered one of the world’s most important crops. A starchy, nutrient-rich root vegetable of the genus Dioscorea, the yam thrives in a tropical belt across West Africa, with outliers in the ...
Tropical Humid Dense Forest, Tropical Wooded Savannah, Semi-Arid, Montane and Fresh Water Ecosystems The land boundary between Nigeria and Cameroon extends for 2,062 km from Lake Chad in the north ...