利用柏木伐桩信息建立单株材积数学模型  

Establishment of the Mathematical Model for the Individual Tree Volume on the Basis of the on Stump Data

作　　者：杨春齐 朱志芳[2] 何锐 李文静[3] 

机构地区：[1]盐亭县林业局,四川盐亭621600 [2]四川省林业科学研究院,四川成都610081 [3]四川卧龙国家级自然保护区管理局,四川卧龙623006

出　　处：《四川林业科技》2010年第6期101-102,共2页Journal of Sichuan Forestry Science and Technology

基　　金：林业公益性行业科研专项(20100400208)

摘　　要：柏木是川中丘陵区主栽树种,充分利用其伐桩信息建立数学模型,编制并完善根径材积表,不仅有利于提高森林资源调查数据的准确性和可靠性,而且还可为森林资源调查、案件处罚以及相关科学决策提供比较真实的基础资料。本文通过实测柏木伐桩、树高、胸径,拟合了伐桩与材积的关系,筛选出了乘幂V=7E-5D2.4971和对数V=0.004 3 e0.165D两种材积数学模型,均通过适合性检验。其中,乘幂模型适合的径阶范围更大。Cupressus funebris is one of the most common tree species in hilly areas of central Sichuan.The establishment of the stump volume table can not only improve the data accuracy for forest resource inventory,but also provide more actual data for case penalty and other decision-making.Through measuring cypress stump,height and diameter,the exponentiation and logarithm models are selected to fit the relationship between stump and volume,and both mathematical models pass the applicability test.In addition,the exponentiation model can fit wider diameter scope.

关 键 词：被伐木 伐桩 材积 数学模型 

分 类 号：S758[农业科学—森林经理学]