立木材积精确的确定,在林业生产上显然具有特别重要的意义,目前在林业生产中确定立木材积比较精确的方法是查二元材积表。而二元材积表的编制则是藉助于建立材积与树高及干径之间的回归方程,应该说目前一些主要树种通用的二元材积表,达到了一定精度,在生产中被采用。然而我国地域辽阔,树种众多,同一树种在不同区域内其材积规律也不尽同, The exact determination of stand volume is clearly of particular importance in the field of forestry production. Currently, a more accurate method for determining the stand volume in forestry is to look up the binary volume table. The binary volume table is compiled by means of the establishment of volume and tree height and dry path between the regression equation, it should be said that some of the major tree species common binary volume table, reached a certain accuracy, was used in the production. However, China has a vast territory and many species. The same tree species in different regions have different volume laws.