This book is considered as an ecological one, whic it is interesting in the association between savannah zone trees at Sudan in relations to ecology at the study area. Also, it is concentrated on the way of how to evaluate the relationship between these trees, which like, density, abundant, frequency and diversity. Four light chapters are all the content of this book, which taking you from introduction of the ecology, plant community, savannah community and the study area. I hope you in joyful of this book and I hope that Ihave been highlighted on the savannah zone Sudan.