广西宁明县国营派阳山林场,现有马尾松林18万亩,占该场有林面积27万亩的66.7％其中有4000多亩于1958年造林,林木生长迅速,产量高,林龄22.5年,每亩蓄积量达35.8169—47.0896立方米,年平均生长材积为1.5919—2.0929立方米。优势木解析木胸径33.0厘米(带皮),树高24.05米,单株材积为0.9904立方米(带皮)、0.9150立方米(去皮),为了了解林分生长情况,我们于1980年7月进行了调查,现将材料整理如下: Guangxi Ningming County State-owned Yangshan Forest Farm, the existing Masson pine 18 million mu, accounting for 66.7% of the area of ​​27 million mu of forest area, of which more than 4,000 acres in 1958 afforestation, rapid growth of trees, high yield, age 22.5 Year, the volume per acre 35.8169-47.0896 cubic meters, the average annual growth volume of 1.5919-2.0929 cubic meters. The dominant wood analytical DBH 33.0 cm (with skin), height 24.05 m, single plant volume of 0.9904 cubic meters (with skin), 0.9150 cubic meters (peeled), in order to understand stand growth, we in July 1980 Conducted a survey, the material is now organized as follows: