SABINO, F. G. S.; http://lattes.cnpq.br/0005596364487120; SABINO, Francisco Geovanio da silva. (BrasilCentro de Saúde e Tecnologia Rural - CSTRUFCGUniversidade Federal de Campina Grande, 2013-04-23)
The Brazilian semi-arid área is about 900 thousand km2, 70% of northeastern region, with
predominance of xerofitic and heterogeneous vegetation, with small trees and scrubs of
caducous and small leaves named caatinga. ...