This study aimed to determine the diameter distribution of arboreal and regenerating individuals in an area Caatinga recovery process. The work was developed at NUPEARIDO farm, Patos – PB, where adult species Mimosa tenuiflora Cnidoscolus quercifolius were planted 2008 2014, secondary Handroanthus impetiginosus Amburana cearensis. Diameter measurements performed breast level (DBH) ground (DNS),...