João de Vasconcelos Sobrinho, Brazilian ecologist (Moreno, Pernambuco State 28 April 1908 – Recife 04 May 1989)
Obtained worldwide fame as expert on desertification phenomenon
Considered as one of the founders of desertology
Proposed the concept of desertification nuclei (1971)
Proposed a methodology for identifying desertification processes (1978)
Much of terms coined by him are employed in ecological terminology such as desertification nuclei and canopy permeability