Vulnerability of African mahogany to cattle predation in a silvipastural system

Abstract: The objective of this work was to evaluate the incidence and intensity of damages caused by cattle to African mahogany (Khaya grandifoliola) and this species vulnerability in the silvipastural system. The trees were planted in single lines, in a 20x2 m arrangement. In the third year, cattle were introduced in the area. Three classes of damage intensity were established: low, medium, and high. Damages to tree barks showed the highest incidence, followed by damages to wood. The species is vulnerable to bark chewing by cattle, with damages of medium and high intensities.

摘要：本研究旨在评估牛群对非洲桃花心木（African mahogany，Khaya grandifoliola）造成的危害发生率与危害程度，以及该物种在林牧复合系统中的易损性。试验采用单行种植模式，株行距为20×2米。种植后的第三年，试验区域引入牛群。本研究设定了三级危害强度等级：轻度、中度和重度。树皮损伤的发生率最高，其次为木质部损伤。该物种易受牛群啃食树皮的影响，且多出现中度至重度危害。