AbstractA study was conducted to identify the volume of the Ailanthus excelsa plantation in the Cauvery delta zone and constructing the yield model for easy prediction of the yield, which helps farmers in knowing the value of trees. The study was carried out in Cauvery delta zone of Tamil Nadu by studying the biometric attributes namely tree height, bole height, diameter at breast height (DBH) for estimating the volume and to construct the yield model for Ailanthus excelsa in 5 age classes (Age class of 0–1 years, age class of 1–2 years, age class of 2–3 years, age class of 5–6 years and age class of 8–9 years). The volume of 0.169 m3 was attained in the age class of 8–9 years in Ailanthus excelsa plantation. Yield model developed by using multiple linear regression for the Ailanthus excelsa plantations of Cauvery delta zone was Y = (–0.062) + (0.01 × X1) + (0.77 × X2).
Keyword: Ailanthus excelsa, Biometric attributes; Farm plantation; Volume; Yield model.