苍溪县柏木一元地径材积表的编制  

Compilation of Univariate Standing Volume Table of Cypressus Funebris in Cangxi County

作　　者：邹成坤 ZOU Cheng-kun(Forestry and Parks Bureau in Guangyuan City,Guangyuan 628000,China)

机构地区：[1]广元市林业和园林局,四川广元628000

出　　处：《四川林勘设计》2018年第4期72-74,共3页Sichuan Forestry Exploration and Design

摘　　要：苍溪县柏木分布面积和蓄积均占全县森林资源的65%以上,研究编制柏木一元地径材积表,对指导苍溪县林业生产具有重要的指导意义。在森林资源规划设计调查中,收集了650株柏木的地径、胸径、树高数据,通过多个模型拟合选优,建立了柏木树高曲线和胸径-地径模型,并利用柏木二元材积式,编制了一元地径材积表。经检验误差不超过±10%,精度满足要求,可用于估算苍溪县被伐柏木的材积。The distribution area and accumulation of cypress trees in Cangxi county all account for more than 65% of the forest resources in the county.It has important and practical significance to compile the univariate standing volume table of Cypressus funebris for guiding the forestry production in Cangxi county.In the survey of forest resource planning and design,data of land diameter,breast diameter and tree height of 650 cypress trees were collected,and the tree height curve and the breast diameter-ground diameter model of cypress trees were established through the fitting and optimization'of multiple models.The univariate standing volume table of Cypressus funebris was compiled using bivariate standing volume formula.The test error was not more than the 5%,and the accuracy meets the requirement,which could be used to estimate the timber volume of cutting cypress in the county.

关 键 词：柏木 地径 一元材积表 

分 类 号：S791.310.6[农业科学—林木遗传育种]