Growth Target Measure and Families Types Division of Acacia mearnsii Plantation

The growth target of 7yearold progeny forest of 47 Acacia mearnsii in Huangmian forest farm was measured. Then, regard both tannin and timber as object to manage Acacia mearnsii plantation. By integrating the index of tannin output and timber volume, family types were divided into three types: superior family type (superior type), yet to be superior type (medium type) and preliminarily eliminated type (elimination type). It was found that there were 8 superior families suitable for production, including No.169, 114, 177, 32, 3, 145, 158 and 134.