【摘要】 根据林木的生长特点,根径、胸径和单株材积之间的关系,按树种组分别用线性、对数、乘幂、指数型、三阶二项式5种数学模型模拟林木的生长规律,找出林木根径、胸径和材积之间的关系,通过优化、筛选得到最佳模拟数学方程,利用林木根径计算单株材积。应用现代计算机编程技术(DELPHI编程语言),编制根径材积表软件。更多还原

【Abstract】 Based on the relationship among growth characteristics, diameter at foot, DBH and wood volume of a single tree, this paper introduces the establishment of relationship among diameter at foot, DBH and wood volume by means of 5 mathematic models simulating the growth of trees of different species groups.更多还原