The Research of Growth Model of the Pecan Tree Height, Trunk, Crown Diameter and DBH
500 pecans were measured in Henglu village of Linan city of Zhejiang province. Through measuring the tree height, trunk, crown diameter and DBH（diameter at breast height）and analyzing the correlation, the regression equation applicable to different range can be chosen.
Guangfan Li, Yong Huang and Chaohe Chen
W. B. Yao and X. L. Li, "The Research of Growth Model of the Pecan Tree Height, Trunk, Crown Diameter and DBH", Advanced Materials Research, Vols. 250-253, pp. 3858-3863, 2011