摘要
探讨海南岛主要树种(组)相容性生物量模型的构建方法,以期为海南岛林木生物量建模工作提供技术支撑。以海南岛主要树种(组)为研究对象,利用全树生物量和各分项生物量实测数据,通过独立模型和非线性度量误差模型方法,构建各树种(组)全树和各分项生物量的一元、二元独立模型及相容性模型。不管是独立模型还是相容性模型,在引入树高因子后,其模型的精度和平均相对误差都得到一定的改善;所建立的各树种(组)一元相容性模型,其全树和各分项生物量模型的确定系数R^2为(0.67~0.99),平均相对误差E1为(-0.07%~89.57%),相比较于一元独立模型的R^2(0.66~0.99)和E1(0.11%~70.06%),两者相差不大;所建立的各树种(组)二元相容性模型,其全树和各分项生物量模型的确定系数R^2为(0.88~0.99),平均相对误差E1为(0.06%~36.00%),相比较于一元独立模型的R^2(0.87~0.99)和E1(0.24%~43.23%),模型效果相当。所建立的各树种(组)模型可以用于海南岛主要树种(组)生物量的估计。
This study explored the method of constructing compatible biomass for Hainan island to provide technical support for the biomass modeling of main tree species(group).The main species(groups) of Hainan island were studied. The experimental data of total tree biomass and each component biomass were used. By means of independent model and measurement error model, one and two independent models and compatibility models of all tree species(groups) and biomass were constructed.The results showed that: 1) Both the independent model and the compatibility model have improved the precision and average relative error of the model after the introduction of the tree height factor. 2) The coefficient of determination and average relative error of the whole tree and each component biomass model was determined by the unitary compatibility model of each species(group) is(0.67-0.99) and(-0.07%-89.57%), which not much different from the unitary independent model(R^2:0.88-0.99;E1:0.11%-70.06%). 3)The coefficient of determination and average relative error of the whole tree and each component biomass model was determined by the binary compatibility model of each species(group) is(0.88-0.99) and(0.06%-36.00%), the result is equivalent to that of the unitary independent model which R^2(0.87-0.99) and E1(0.24%-43.23%). The established tree species(groups) model can be used to estimate the biomass of main tree species(groups) in Hainan island.
作者
陈宗铸
陈小花
陈毅青
杨琦
雷金睿
CHEN Zongzhu;CHEN Xiaohua;CHEN Yiqing;YANG Qi;LEI Jinrui(Hainan Forestry Science Research Institute,Haikou 571100,Hainan,China)
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2019年第11期71-77,87,共8页
Journal of Central South University of Forestry & Technology
基金
海南省省属科研院所技术开发研究专项（KYYS-2015-18）
国家重点研发计划子课题项目“降香黄檀人工林高效培育技术研究与示范”（2016YFD0600601-4）
关键词
生物量模型
相容性
度量误差模型
海南岛
biomass model
compatibility
error-in-variable model
Hainan island
作者简介
陈宗铸,副研究员,硕士,E-mail:30160280@qq.com;通信作者:陈毅青,高级工程师,E-mail:13876350188@126.com.
